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Restoration -GM Filters-Driers

Filter-Driers

 

What does an filter-drier do?

The Filter-Drier is a canister typically mounted near the Condenser. The filter-drier receives the liquid refrigerant from the Condenser and has two primary functions in the air conditioning system:

To filter contaminants. (It is the primary location where larger contaminants will end up)

To remove moisture. (The desiccant stored inside the filter-drier removes any residual moisture from the system that evacuating doesn’t remove)

Removing moisture is the most important function, as moisture is the #1 enemy of the a/c system. Combined with refrigerant and lubrication, moisture will turn acidic (hydrochloric acid) and start to eat the system up from the inside out. It is necessary to replace or restore the filter-drier whenever the system is opened up to the atmosphere.

Some later model GM systems (most starting in 1973) use a VIR (Valve-In-Receiver), which is mounted on the Evaporator. This valve is a combination of the POA valve, drier, and expansion valve used in earlier systems. For information on VIR’s, click here.

Note - 1977 & later model GM systems use an Accumulator, instead of a Filter-Drier, to perform a similar function. An Accumulator is usually located immediately after the Evaporator’s suction outlet.

 

Buy a new filter-drier!

 

Classic Auto Air offers a number of new, replacement filter-driers, including:

BUICK 

Buick Skylark, GS & Special 63-67 12-201
Buick Skylark, GS & Special 68-69 12-202
Buick Skylark, GS & Special 70-72 12-204
Buick Skylark, GS & Special 73 12-202
Buick Electra 62 12-203
Buick Electra 63-64 12-201
Buick Electra 65-67 12-203
Buick Electra 68-70 12-204
Buick Electra 71 12-202
Buick Electra 72 12-204
Buick LeSabre 62 12-203
Buick LeSabre 63-64 12-201
Buick LeSabre 65-67 12-203
Buick LeSabre 68-70 12-204
Buick LeSabre 71 12-202
Buick LeSabre 72 12-204
Buick Riviera 62 12-203
Buick Riviera 63-67 12-201
Buick Riviera 68-70 12-204
Buick Riviera 72 12-202

 

CADILLAC 

Cadillac 63-67 12-205
Cadillac 68-early 73 12-204
Cadillac Eldorado 12-205
Cadillac Eldorado 68-72 12-202
Cadillac Eldorado early 73 12-204

 

CHEVROLET 

Chevy Corvair 65-67 12-201
Chevy Corvette 63-67 12-201
Chevy Corvette 68-72 12-202
Pontiac Firebird 67 12-201
Pontiac Firebird 68-73 12-202
Chevy Chevelle 64-67 12-201
Chevy Chevelle 68-73 12-202
Chevy El Camino 64-67 12-201
Chevy El Camino 68-73 12-202
Chevy Impala & Caprice 64-67 12-201
Chevy Impala & Caprice 68-73 12-202
Chevy Monte Carlo 70-73 12-202
Chevy II/Nova 64-67 12-201
Chevy II/Nova 68-early 74 12-202
Chevy & GMC Truck 67-70 12-201
Chevy & GMC Truck 71-72 12-202
Chevy Vega 71-72 12-202

 

OLDSMOBILE 

Olds Cutlass, 442 & F85 63-67 12-201
Olds Cutlass, 442 & F85 68-72 12-202
Olds Full Size 62 12-203
Olds Delta 88/98 63-64 12-205
Olds Delta 88/98 65-67 12-201
Olds Delta 88/98 68-71 12-202
Olds Delta 88/98 72-73 12-202
Olds Toronado 66-67 12-201
Olds Toronado 68-71 Call
Olds Toronado 72 12-202

 

PONTIAC 

Pontiac Bonneville 62-67 12-203
Pontiac Bonneville 68-70 12-204
Pontiac Bonneville 71-72 12-202
Pontiac Catalina 62-67 12-203
Pontiac Catalina 68-70 12-204
Pontiac Catalina 71-72 12-202
Pontiac Grand Prix 63-67 12-203
Pontiac Grand Prix 68-72 12-204
Pontiac GTO, LeMans & Tempest 63-67 12-203
Pontiac GTO, LeMans & Tempest 68-72 12-204
Pontiac Firebird 67 12-201
Pontiac Firebird 68-73 12-202

For information on other replacement new, NOS & NORS Filter-Driers

Call or email now!

 

Can’t find a new filter-drier?

 

 

We can restore your old one!

 

Because many filter-driers are no longer made, Classic Auto Air offers restoration services for your original.

  • Filter-Drier restoration service includes:
  • Cut open and clean internally
  • Replace filter and desiccant
  • Reassemble and weld back together
  • Pressure test and paint

61 Cadillac Filter-Drier - Before

61 Cadillac Filter-Drier Before

61 Cadillac Filter-Drier - After

61 Cadillac Filter-Drier After

 

Call or email now!

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