For 1990-2009 cars

# ACCUMULATOR/DEHYDRATOR ASSEMBLY SERVICE REPLACEMENT

#### MODELS AFFECTED: 1977-1984 DE VILLES, BROUGHAMS, ELDORADOS, SEVILLES, LIMOUSINES, AND COMMERCIAL CHASSIS

Some original design J-Tube style Accumulator/Dehydrator (A/D) Assembly service parts are no longer available. Original design A/D parts should be used, when available. If an original design A/D is not available, service A/D P/N 12322992 in conjunction with a specific fitting package (adapter tube) must be used. This two piece assembly, A/D and fitting package adapter tube, replaces the original one-piece J-Tube style A/D assembly. A/C hoses do not require cutting or modification, but the fitting package adapter tube must be properly oriented to the A/D before final tightening.

The following A/D Application Chart lists the service part numbers for both the original design J-Tube A/D assembly as well as the fitting package (adapter tube) to be used with Service A/D P/N 12322992 if the original design A/D is not available.

1977-1984 A/D APPLICATION CHART

FITTING ORIGINAL DESIGN PACKAGE J-TUBE A/D (ADAPTER YEAR MODEL SERVICE P/N TUBE) P/N* ---- ----- ----------- ---------- 1977/1979 C, D, Z 2724189 12302442 1980/1984 C, D, Z 2724223 12302442 1977/1978 E 2724188 12302442 1979 E 2724203 12302922 1977/1979 K 2724190 12302441 1980/1984 E/K 2724224 12302441

* Requires Service A/D Assembly P/N 12322992.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.