Steel Cab, Summer Sun, and Your Three Options
Drive your F-100 in July and the steel cab turns into an oven. The bench seat brands your legs through your jeans, the single-speed heater fan is useless, and cracking the wing window barely helps at a stoplight. Factory air conditioning was either unavailable or a rarely ordered option across the F-100’s entire 1948-1983 production run, but the aftermarket has solved that problem three different ways.
Today’s aftermarket AC kits use R-134a refrigerant, efficient Sanden-style compressors, and compact evaporator units that cool far better than any factory system Ford offered in the 1960s or 1970s. Complete bolt-in kits are available for every F-100 generation from 1953 through 1979, and installation is within reach of anyone comfortable with basic mechanical and electrical work.
What a Complete AC Kit Includes
A complete aftermarket AC kit typically ships with everything you need for the installation:
- Evaporator unit with blower motor, expansion valve, and temperature controls
- Condenser with mounting brackets and an electric fan (in most kits)
- Compressor with engine-mounting bracket and hardware
- Receiver-drier (filters moisture and debris from the refrigerant)
- Pre-formed refrigerant hoses with fittings for the high-pressure and low-pressure sides
- Wiring harness with relay, fuse, and connectors
- Mounting hardware, templates, and installation instructions
Some kits sell the evaporator (interior) and underhood components separately. If you buy an “evaporator only” kit, you will need to source the compressor, condenser, hoses, and drier individually.
Comparing the Three Major AC Kit Brands
Three companies dominate the aftermarket AC market for the F-100. Each takes a different approach to design, controls, and pricing.
| Feature | Vintage Air SureFit | Classic Auto Air ELITE | Old Air Products Hurricane |
|---|---|---|---|
| F-100 Coverage | 1953-1979 (generation-specific kits) | 1948-1979 (generation-specific kits) | 1953-1979 (generation-specific kits) |
| Control Type | Electronic microprocessor (Gen 5) | Electronic or cable-operated | Electronic rotary switch |
| Heating and Defrost | Heat, AC, and defrost integrated | Heat, AC, and defrost integrated | Heat, AC, and defrost integrated |
| Compressor Included | Yes (complete kit) | Yes (complete kit) | Yes (complete kit) |
| Mounting Style | In-dash (replaces factory controls) | In-dash or under-dash depending on kit | Under-dash (uses factory heater holes) |
| Complete Kit Price Range | $2,200-$3,200+ | $1,500-$2,500+ | $1,300-$1,900+ |
| Best Known For | Widest selection, highest cooling output | Clean factory-look installation | Budget-friendly, uses factory mounting holes |
Vintage Air SureFit
Vintage Air is the most widely used brand in the F-100 community. Their Gen 5 SureFit kits are fully electronic, eliminating cables and vacuum lines. The microprocessor-controlled system adjusts blower speed and temperature blend automatically. SureFit kits are generation-specific, meaning the evaporator, brackets, and hose routing are designed specifically for your truck’s dash and firewall layout.
Vintage Air offers kits for 1953-55, 1956, 1961-64, 1965, 1966, 1967, 1968-72, and 1973-79 F-100 trucks, with separate options for inline six and V8 engines. Complete kits (evaporator, compressor, condenser, hoses, drier, and all hardware) typically run $2,200 to $3,200 depending on year and engine configuration. Evaporator-only kits are less expensive if you already have underhood components.
Classic Auto Air ELITE
Classic Auto Air’s Perfect Fit ELITE kits are engineered to bolt in with minimal modification. In many installations, only one hole needs to be drilled because the kit reuses factory mounting holes wherever possible. ELITE kits are available for 1948-79 F-100 trucks, giving them the broadest year coverage of the three brands. Complete kits generally run $1,500 to $2,500. Classic Auto Air is a strong choice if you want a clean, factory-appearance installation without cutting up the dash.
Old Air Products Hurricane
Old Air Products takes a practical, budget-conscious approach. Their Hurricane kits include heat, AC, and defrost in a single unit that mounts using the factory heater mounting holes on the firewall. The system attaches with a custom mounting plate, and AC lines pass through the original blower motor hole, keeping firewall modifications to a minimum.
Hurricane kits are available for 1953-55, 1956-57, 1961-66, 1967-72, and 1973-79 F-100 trucks, with options for driver-side or passenger-side compressor mounting. Note that Old Air Products groups 1956 and 1957 trucks together for fitment purposes despite the generation change (Gen 2 ends at 1956, Gen 3 starts at 1957), as the cab structures are similar enough to share a kit. Complete kits typically range from $1,300 to $1,900, making them the most affordable of the three brands. Old Air Products is a solid pick if you want reliable cooling on a tighter budget.
In-Dash vs. Under-Dash Installation
AC kits come in two basic mounting styles, and the right choice depends on your generation, your priorities, and how much modification you are willing to do.
In-Dash Systems
In-dash systems replace the factory heater controls and integrate the evaporator behind the dashboard. The result is a clean, built-in look with no visible aftermarket hardware hanging below the dash. Vintage Air SureFit and Classic Auto Air ELITE kits are typically in-dash designs for most F-100 generations.
Pros: Clean factory appearance, no lost legroom or knee space, integrated controls blend with the dash
Cons: More involved installation (dash removal usually required), higher cost, may require cutting the dash or firewall for ducting
Under-Dash Systems
Under-dash systems mount the evaporator unit below the dashboard on the passenger side. These are simpler to install because you do not need to remove the dash or modify it significantly. Old Air Products Hurricane kits and some economy kits from other brands use this approach.
Pros: Easier and faster installation, less modification to the truck, lower cost, simpler to remove or service later
Cons: Visible unit hanging below the dash, can reduce legroom for the passenger, less integrated appearance
For most daily-driven F-100 trucks, an in-dash system is worth the extra effort and cost. If you are working on a budget or want a reversible installation, an under-dash unit gets you cold air with less work.
Generation-Specific Considerations
Second Generation (1953-1956)
These trucks came with a simple dash layout and a small cab. The firewall is relatively flat, which simplifies evaporator and hose routing. All three brands offer kits for this generation. The main challenge is electrical capacity, since these trucks originally used generators rather than alternators. Plan on a generator-to-alternator conversion before adding AC. See the wiring harness guide for details on upgrading the electrical system.
Third Generation (1957-1960)
The 1957-60 trucks share a similar cab structure with the second generation but use a different dash. Kit availability is more limited for this generation. Classic Auto Air covers 1957-60 trucks. Confirm the specific kit number matches your year and engine before ordering. An alternator upgrade is essential here as well.
Fourth Generation (1961-1966)
The 1961-66 Unibody (1961-63) and fender-side (1964-66) trucks are well supported by all three manufacturers. Vintage Air offers separate kits for inline six and V8 engines in this range. If your truck has a 223 or 262 inline six, make sure you order the six-cylinder version, as the compressor bracket and belt routing differ from V8 kits. The 1961-64 and 1965-66 trucks have different dashes, so verify your kit matches the correct year span.
Fifth Generation (1967-1972)
The Bumpside trucks are the most popular F-100 generation for AC retrofits, and kit selection is the broadest here. Vintage Air, Classic Auto Air, and Old Air Products all offer multiple configurations for 1967-72 trucks with inline six or V8 engines. The 1967 model year uses a unique dash that differs from 1968-72, so Vintage Air sells a separate 1967-specific kit. The firewall on these trucks has a large flat area behind the dash that accommodates evaporator units well.
Sixth Generation (1973-1979)
The Dentside trucks are also well covered. Vintage Air recently added Gen 5 SureFit kits for the 1973-79 range, joining Classic Auto Air and Old Air Products. These trucks often came with a larger engine bay and more wiring capacity, which makes installation slightly easier. If your truck had factory AC, you can often reuse the original dash openings and control locations.
Seventh Generation (1980-1983)
The 1980-83 trucks shared the same basic cab as the 1973-79 models. Kits designed for the 1973-79 generation will generally fit, but verify compatibility with the manufacturer before ordering, especially if your 1980-83 truck has a different dash configuration or engine.
Electrical Requirements and Alternator Upgrades
An AC compressor adds a significant electrical load. The compressor clutch, condenser fan, and blower motor can draw 30 to 50 amps combined. If your truck has a factory generator (common on 1953-1964 trucks) or a low-output alternator (35-60 amps), you will need to upgrade before adding AC.
Minimum Alternator Output
Plan on a minimum of 80 amps, and 100 amps or more is better if you run headlights, a stereo, and electric cooling fans along with the AC. A Ford 3G-style alternator or a Delco 10Si/12Si alternator are the two most common upgrade paths. Both are readily available, affordable, and well documented for F-100 installations.
Generator-to-Alternator Conversion
If your truck still has the original generator, you will need to convert to an alternator. This involves swapping the generator for an alternator, adding a voltage regulator (internal on most modern alternators), and upgrading the charge wire to at least 8-gauge. Companies like Painless Performance and American Autowire sell conversion harnesses that simplify this process. The wiring harness guide covers this topic in more detail.
Upgraded Charge Wiring
Even if your truck already has an alternator, check the charge wire gauge. The original wire was often 12 or 14 gauge, which is undersized for a high-output alternator. Upgrade to 8-gauge or 4-gauge wire from the alternator output terminal to the starter solenoid battery terminal. This ensures the alternator can deliver its full output without voltage drop.
Compressor Options
Most aftermarket AC kits include a Sanden SD7-style (also called Sanden 508) compressor. This is a 7-piston rotary compressor that is lighter, more efficient, and quieter than the old York or Tecumseh piston compressors Ford used in the 1960s and 1970s. The Sanden SD7 works with R-134a refrigerant and is available in both V-belt and serpentine pulley configurations.
If your kit does not include a compressor, or if you are building a custom setup, the Sanden SD7 is the compressor to buy. It mounts in a compact space, draws less power from the engine than older designs, and replacement units are available from any AC parts supplier for $150 to $250.
Compressor Mounting
The compressor mounts to the engine block or cylinder head using a bracket specific to your engine. Most complete kits include the correct bracket. If you are sourcing a compressor separately, make sure the bracket matches your engine (small-block Ford, FE, inline six, or whatever you are running). Aftermarket brackets from companies like ICT Billet, March Performance, and CVF Racing are available for common engine swaps including the 302, 351W, and LS.
Condenser Placement
The condenser mounts in front of the radiator, where it can receive maximum airflow. On most F-100 installations, the condenser bolts to the radiator support or core support using brackets included in the kit. Leave at least half an inch of clearance between the condenser and the radiator to avoid restricting airflow to the radiator.
If your truck runs hot or has a marginal cooling system, adding a condenser in front of the radiator can push engine temperatures higher. Consider upgrading to an aluminum radiator and electric cooling fans at the same time. The radiator and cooling upgrade guide covers your options.
An electric condenser fan is included in most complete kits and strongly recommended. The condenser fan pulls air through the condenser at idle and low speeds when there is not enough ram air from forward motion. Without it, AC performance at idle and in traffic will suffer.
Installation Overview
The following steps apply to most complete AC kits. Always follow the manufacturer’s specific instructions for your kit.
Step 1: Plan the Layout
Before you unbolt anything, lay out all the kit components and read the instructions completely. Identify where the evaporator mounts, where hoses route through the firewall, and where the compressor and condenser sit in the engine bay. Dry-fit the evaporator in the dash or under-dash area to check clearances.
Step 2: Install the Evaporator
For in-dash kits, you will typically need to remove the dash pad and the factory heater box. The evaporator unit mounts behind the dash using the kit’s brackets and hardware. Use the provided template to mark and drill firewall holes for the refrigerant lines, drain tube, and wiring. Seal all firewall penetrations with the included grommets or RTV sealant to prevent water and fume intrusion.
For under-dash kits, mount the evaporator unit below the dash on the passenger side using the factory heater mounting holes (Old Air Products Hurricane) or the kit’s own bracket. Route hoses through the firewall via the existing blower motor hole or a new hole cut with the provided template.
Step 3: Mount the Condenser
Install the condenser in front of the radiator using the kit brackets. Position it so it covers as much of the radiator face as possible for maximum airflow. Mount the electric condenser fan on the back side of the condenser (between the condenser and radiator). Wire the condenser fan to run whenever the AC compressor is engaged.
Step 4: Install the Compressor
Bolt the compressor bracket to the engine using the provided hardware. Hang the compressor on the bracket and route the V-belt or serpentine belt. Verify proper belt alignment and tension. The belt should deflect about half an inch under moderate thumb pressure on the longest unsupported span.
Step 5: Route Refrigerant Lines
Connect the high-pressure (discharge) line from the compressor to the condenser inlet. Route the line from the condenser outlet to the receiver-drier, then from the drier to the evaporator inlet (expansion valve). Connect the low-pressure (suction) line from the evaporator outlet back to the compressor inlet. Use the pre-formed hoses and fittings included in the kit. Tighten all connections with a backup wrench on each fitting to avoid twisting the lines.
Step 6: Wire the System
Connect the AC wiring harness to the truck’s electrical system. This typically involves a power feed from the fuse box, a ground wire, and connections for the compressor clutch, condenser fan, and blower motor. Most kits include a relay that handles the heavy current for the compressor clutch, with a lighter-gauge wire from the control head to the relay. Route wiring away from exhaust components and moving parts.
Step 7: Evacuate and Charge
Before adding refrigerant, the system must be evacuated with a vacuum pump to remove air and moisture. Pull a vacuum of at least 29 inches of mercury and hold it for 30 to 45 minutes. If the vacuum holds, the system has no leaks. Charge with R-134a refrigerant to the amount specified in the kit instructions, typically 1.5 to 2.5 pounds depending on the system. Use a manifold gauge set to monitor high-side and low-side pressures during charging.
If you do not own a vacuum pump and manifold gauges, any AC shop can evacuate and charge the system for $75 to $150 after you complete the mechanical installation.
Step 8: Test and Adjust
Start the engine and turn on the AC. Verify that the compressor clutch engages, the condenser fan runs, and cold air comes from the vents. Check all blower speeds and the temperature blend control. With the system running and the engine at idle, high-side pressure should be roughly 150 to 250 PSI and low-side pressure should be 25 to 35 PSI, depending on ambient temperature. Vent temperature should drop to 40 to 50 degrees Fahrenheit within a few minutes.
Cost Breakdown
| Item | Estimated Cost |
|---|---|
| Complete AC kit (evaporator, compressor, condenser, hoses, drier) | $1,300-$3,200 |
| Alternator upgrade (if needed) | $100-$250 |
| Upgraded charge wiring and connectors | $25-$75 |
| Additional refrigerant hose fittings or adapters | $20-$50 |
| R-134a refrigerant (3-4 cans or bulk) | $30-$60 |
| Vacuum and charge service (if not DIY) | $75-$150 |
| Misc. hardware, grommets, sealant | $20-$40 |
| Total DIY cost | $1,800-$3,500+ |
| Professional installation labor (8-16 hours at shop rate) | $800-$2,500 |
| Total with professional install | $2,600-$5,500+ |
The biggest variable is the kit itself. Old Air Products Hurricane kits start around $1,300 for a complete system, while Vintage Air Gen 5 SureFit kits for certain years can exceed $3,000. If your truck needs an alternator upgrade or cooling system work, factor those costs in as well.
Tips for a Successful Installation
Do the cooling system first. If your truck already runs warm, adding a condenser in front of the radiator will make it worse. Upgrade to an aluminum radiator and electric fans before or at the same time as the AC install. See the radiator and cooling upgrade guide for recommendations.
Label and photograph everything. Before you remove the factory heater or any dash components, take photos of the wiring, hose routing, and control cable locations. This saves time during reassembly and helps if you need to troubleshoot later.
Use thread sealant on fittings, not Teflon tape. Teflon tape can shed into the AC system and clog the expansion valve or orifice tube. Use Nylog or a refrigerant-compatible thread sealant on all O-ring and flare fittings.
Add a trinary switch. A trinary pressure switch protects the compressor by disabling it if the system pressure gets too high or too low, and it can also trigger the condenser fan. Most quality kits include one, but verify.
Check belt alignment carefully. A misaligned compressor belt will squeal, wear quickly, and can throw off. Use a straightedge across the crank pulley, alternator pulley, and compressor pulley to verify they are in the same plane before tightening everything down.
Complete the interior while the dash is apart. If you are pulling the dash for an in-dash AC installation, it is the perfect time to address other interior work like replacing the dash pad, adding new gauges, or upgrading the wiring harness. Combining projects saves hours of disassembly and reassembly time. The interior restoration guide covers the full scope of interior work.
Frequently Asked Questions
How much does it cost to add air conditioning to a Ford F-100?
A complete AC kit costs $1,300 to $3,200 depending on the brand and your truck’s generation. Old Air Products Hurricane kits start around $1,300 for a complete system, Classic Auto Air ELITE kits run $1,500 to $2,500, and Vintage Air SureFit kits range from $2,200 to $3,200. Adding refrigerant, an alternator upgrade, and miscellaneous supplies brings the typical DIY total to $1,800 to $3,500. Professional installation adds $800 to $2,500 in labor.
Can I install an AC system in my F-100 myself?
Yes. AC installation is an intermediate-level project that takes 12 to 24 hours depending on the kit and your experience. Complete kits from Vintage Air, Classic Auto Air, and Old Air Products include all components, hardware, and detailed instructions. The most specialized step is evacuating and charging the system with refrigerant, which requires a vacuum pump and manifold gauges. If you do not have those tools, any AC shop can evacuate and charge the system for $75 to $150 after you finish the mechanical installation.
Do I need to upgrade my alternator before adding AC?
In most cases, yes. An AC system’s compressor clutch, condenser fan, and blower motor can draw 30 to 50 amps combined. If your truck has a factory generator (common on 1953-1964 models) or a low-output alternator under 60 amps, you need to upgrade to at least an 80-amp alternator. A 100-amp or higher alternator is recommended if you also run headlights, electric fans, and a stereo. Ford 3G and Delco 10Si alternators are the most common upgrade choices for F-100 trucks.
What is the best AC kit for a 1967-1972 Ford F-100?
The 1967-72 Bumpside F-100 has the widest selection of aftermarket AC kits. Vintage Air SureFit Gen 5 is the most popular choice for owners who want fully electronic controls and maximum cooling performance. Old Air Products Hurricane is a strong value option at a lower price point. Classic Auto Air ELITE offers a clean factory-look installation. All three brands produce generation-specific kits for the 1967-72 range with options for inline six and V8 engines.
What refrigerant do aftermarket F-100 AC systems use?
All current aftermarket AC kits for the F-100 use R-134a refrigerant, which replaced the older R-12 (Freon) that is no longer manufactured. R-134a is readily available at auto parts stores and is safe to handle. A typical F-100 AC system holds 1.5 to 2.5 pounds of R-134a. The kit instructions will specify the exact charge amount for your system.
Will adding AC make my F-100 run hotter?
It can if your cooling system is marginal. The AC condenser mounts in front of the radiator and partially blocks airflow, which can raise coolant temperatures by 10 to 20 degrees. If your truck already runs near the top of the temperature gauge, upgrade to an aluminum radiator and electric cooling fans before or at the same time as the AC installation. A healthy cooling system handles the added heat load without issue.
Is an under-dash or in-dash AC system better for an F-100?
In-dash systems look cleaner and do not reduce legroom, but they require more installation work and typically cost more. Under-dash systems are easier to install, less expensive, and simpler to service, but they are visible below the dash and can reduce passenger legroom. For a daily driver where appearance matters, an in-dash kit from Vintage Air or Classic Auto Air is worth the extra effort. For a budget build or a truck you want to keep as reversible as possible, an under-dash kit from Old Air Products is a practical choice.
Keep Building
Air conditioning is one of the upgrades that turns an F-100 from a weekend toy into a real daily driver. For the full checklist of what it takes to drive your truck every day, see the daily driver build guide. While you are improving comfort, adding power steering makes the same kind of difference behind the wheel. And if you want to modernize the fuel system at the same time, the EFI conversion guide covers the swap from carburetor to electronic fuel injection.
Frequently Asked Questions
How much does it cost to add air conditioning to a Ford F-100?
A complete AC kit costs $1,300 to $3,200 depending on the brand and your truck's generation. Old Air Products Hurricane kits start around $1,300 for a complete system, Classic Auto Air ELITE kits run $1,500 to $2,500, and Vintage Air SureFit kits range from $2,200 to $3,200. Adding refrigerant, an alternator upgrade, and miscellaneous supplies brings the typical DIY total to $1,800 to $3,500. Professional installation adds $800 to $2,500 in labor.
Can I install an AC system in my F-100 myself?
Yes. AC installation is an intermediate-level project that takes 12 to 24 hours depending on the kit and your experience. Complete kits from Vintage Air, Classic Auto Air, and Old Air Products include all components, hardware, and detailed instructions. The most specialized step is evacuating and charging the system with refrigerant, which requires a vacuum pump and manifold gauges. If you do not have those tools, any AC shop can evacuate and charge the system for $75 to $150 after you finish the mechanical installation.
Do I need to upgrade my alternator before adding AC?
In most cases, yes. An AC system's compressor clutch, condenser fan, and blower motor can draw 30 to 50 amps combined. If your truck has a factory generator (common on 1953-1964 models) or a low-output alternator under 60 amps, you need to upgrade to at least an 80-amp alternator. A 100-amp or higher alternator is recommended if you also run headlights, electric fans, and a stereo. Ford 3G and Delco 10Si alternators are the most common upgrade choices for F-100 trucks.
What is the best AC kit for a 1967-1972 Ford F-100?
The 1967-72 Bumpside F-100 has the widest selection of aftermarket AC kits. Vintage Air SureFit Gen 5 is the most popular choice for owners who want fully electronic controls and maximum cooling performance. Old Air Products Hurricane is a strong value option at a lower price point. Classic Auto Air ELITE offers a clean factory-look installation. All three brands produce generation-specific kits for the 1967-72 range with options for inline six and V8 engines.
What refrigerant do aftermarket F-100 AC systems use?
All current aftermarket AC kits for the F-100 use R-134a refrigerant, which replaced the older R-12 (Freon) that is no longer manufactured. R-134a is readily available at auto parts stores and is safe to handle. A typical F-100 AC system holds 1.5 to 2.5 pounds of R-134a. The kit instructions will specify the exact charge amount for your system.
Will adding AC make my F-100 run hotter?
It can if your cooling system is marginal. The AC condenser mounts in front of the radiator and partially blocks airflow, which can raise coolant temperatures by 10 to 20 degrees. If your truck already runs near the top of the temperature gauge, upgrade to an aluminum radiator and electric cooling fans before or at the same time as the AC installation. A healthy cooling system handles the added heat load without issue.
Is an under-dash or in-dash AC system better for an F-100?
In-dash systems look cleaner and do not reduce legroom, but they require more installation work and typically cost more. Under-dash systems are easier to install, less expensive, and simpler to service, but they are visible below the dash and can reduce passenger legroom. For a daily driver where appearance matters, an in-dash kit from Vintage Air or Classic Auto Air is worth the extra effort. For a budget build or a truck you want to keep as reversible as possible, an under-dash kit from Old Air Products is a practical choice.