The stock GM A6 Compressor in the factory air 1974 Pontiac Grand Prix is located on the passenger side of the engine. The Compressor is the belt-driven, engine mounted mechanism that serves as the heart of your car’s air conditioning system by pumping refrigerant through the system.

Keep it simple and save $ with this comprehensive OE compressor replacement kit. A great start to converting your system to 134a or refreshing your stock R12 system!

HERE'S WHAT YOU GET:

• A6 Compressor w/single-groove 5" diameter pulley - remanufactured.
• Full charge of Ester Oil compatible with both R12 & 134a refrigerants.
• O-Ring & lubricant kit.

IF CONVERTING FROM 134a, THE FOLLOWING IS RECOMMENDED IN ADDITION TO THIS KIT:

• Flush all re-used system components to insure they are clean & free of contaminants. This may be performed simply by blowing the system components out with compressed air, but depending on component condition, might require liquid flushing with approved flushing agent. It is highly recommended that this is performed component by component. Feel free to email with any questions!
• Replace or restore all rubber hoses with barrier-lined hoses, unless current hoses have already been changed.
• Install 134a charge port adapters.
• Change dessicant in VIR. Rebuilding the VIR is recommended. We can do this for you. More on converting to 134a.

We can also rebuild your A6 Compressor, sell you one, or sell you our S6 direct replacement compressor, which is designed to be used with all existing factory air conditioning brackets and hoses with no modification whatsoever. It is available with a single 5 inch diameter pulley in brushed aluminum (Part No. 5-206) or black (Part No. 5-209) and is pictured below.

Don't see what you're looking for? Need technical help? Call or email.

The Condenser on a factory air 1974 Pontiac Grand Prix is the radiator-like device mounted in front of the radiator in the engine compartment.

The factory air Condenser in a 1974 Pontiac Grand Prix was a tube and fin Condenser.

We offer reconditioning services for your original 1974 Pontiac Grand Prix Condenser. We can even make a new one using your original as a sample. Give us a call or email and let’s discuss the best options for your situation.

A/C INFO:

Car air conditioning is nothing more than continuous heat transfer by two heat exchangers. One heat exchanger, the Evaporator, absorbs heat from the passenger compartment. The other heat exchanger, the Condenser, dissipates that heat into the outside air. All other things being equal, size matters. A larger Evaporator and a larger Condenser exchange more heat than smaller ones and allow the air conditioning system to cool better.

CONDENSER MAINTENANCE TIP:

Try to keep your Condenser as clean and free of bugs and debris as possible. The Condenser's ability to transfer heat is based on air flow. When the Condenser air flow becomes obstructed, it becomes a less efficient heat exchanger.

Don't see what you're looking for? Need technical help? Call or email.

The Controls on a factory air 1974 Pontiac Grand Prix are vacuum and electrically controlled manual or automatic controls.

We offer complete control restoration services, including rebuilding of control heads, power servos, programmers, transducers, fan switches and reconditioning of vaccum selector switches. We can also duplicate your heater and air conditioning cables.

Call or email to discuss the best options for your situation.

The term “Evaporator” is often used loosely to refer to the Evaporator box or housing and also to the Evaporator coil, which is a boxier, radiator like device located inside the Evaporator housing. On a factory air 1974 Pontiac Grand Prix, the Evaporator housing is located in the engine compartment on the passenger side firewall.

We offer reconditioning and rebuilding services for your original 1974 Pontiac Grand Prix Evaporator. Give us a call or email and let’s discuss your situation.

A/C INFO:

Car air conditioning is nothing more than continuous heat transfer by two heat exchangers. One heat exchanger, the Evaporator, absorbs heat from the passenger compartment. The other heat exchanger, the Condenser, dissipates that heat into the outside air. All other things being equal, size matters. A larger Evaporator and a larger Condenser exchange more heat than smaller ones and allow the air conditioning system to cool better.

Don't see what you're looking for? Need technical help? Call or email.

If you have a 1974 Pontiac Grand Prix with a VIR, call or email so we can discuss your situation with you.

Classic Auto Air has extensive experience duplicating GM air conditioning hoses, and restoring, reconditioning and duplicating GM air conditioning lines, fittings and mufflers.

We would love to discuss duplicating, restoring or reconditioning your 1974 Pontiac Grand Prix air conditioning hoses, lines, fittings and muffler.

Don't see what you're looking for? Need technical help? Call or email.

1974 Pontiac Grand Prix’s used a Valves-in Receiver (VIR) type air conditioning system.

The VIR combines the Expansion Valve, POA Valve and accumulator (which substitutes for the Filter-Drier) in one valve. On the 1974 Grand Prix’s, the VIR is mounted to the Evaporator unit on the passenger side firewall.

Our Rebuilt VIR’s are carefully restored and gold zinc plated.

NOTE:

A core charge is also required and indexing may be required during installation.

We also offer individual VIR parts. Call or email us.

The 1974 Pontiac Grand Prix used a Valves-in Receiver (VIR) air conditioning system.

The VIR combines the Expansion Valve, POA Valve and accumulator (which substitutes for the Filter-Drier) in one valve. On the 1974 Grand Prix’s, the VIR is mounted to the Evaporator unit on the passenger side firewall.

Our VIR Rebuild Kit is a factory correct replacement kit for 1974 Pontiac Grand Prix’ and includes:

• O-rings
• Sight-glass Teflon washer
• Tube clip
• Dessicant bag, and
• Filter screen

We also offer individual VIR parts and can even custom rebuild your original valve, including gold zinc plating. Call or email us.

The factory air conditioning system on the 1974 Pontiac Grand Prix used a Valves-in-Receiver (VIR).

The VIR combines the Expansion Valve, POA Valve and accumulator (which substitutes for the Filter-Drier) in one valve. On the 1974 Grand Prix’s, the VIR is mounted to the Evaporator unit on the passenger side firewall.

While the VIR systems function well with the old R12 refrigerant they were designed for, the inability to adjust their calibration makes them marginal at best for use with 134a refrigerant.

Our VIR Eliminator Kit replaces the VIR with the Accumulator equipped cycling-clutch-orifice-tube (CCOT) used on modern GM vehicles. The kit includes:

• A new Accumulator
• Cycling Switch
• Orifice Valve, and
• Fittings.

Simply install the Accumulator and Orifice Valve in place of the VIR, replace one end of your Suction Hose, and wire in the Cycling Switch.

This kit can also be ordered as part of our Engine Compartment Upgrade Kits, replacing the VIR Rebuild Kit. Call or email us.

Classic Auto Air offers restoration and rebuilding services for 1974 Pontiac Grand Prix heater boxes, heater cores, and heater valves

Depending on availability, we may offer NOS and NORS heater parts.

Give us a call or email and let’s discuss your needs.

Classic Auto Air can repair or rebuild almost any air conditioning part from a 1974 Pontiac Grand Prix.

Call or email us. We would be glad to help.

The air conditioning components on a 1974 Pontiac Grand Prix that we can repair or replace include:

• GM A6 Compressor
• Tube and Fin Condenser
• Controls
• Evaporator (restore only)
• Valves-in-Receiver (VIR) (Combines Expansion Valve, POA Valve and Accumulator in one valve)
• Hoses and lines
  

We can also help you convert a 1974 Pontiac Grand Prix R12 refrigerant system over to 134a. More on converting to 134a.

Don't see what you're looking for? Need technical help? Call or email.

We are always buying, selling and rebuilding air conditioning parts for classic vehicles.

Our available inventory changes on a regular basis but on every day we have more NOS, NORS and restored/rebuilt classic car air conditioning parts than anyone else in the world.

Call or email us to discuss your needs.