Four Seasons
PAC-Kit w/ Reman Compressor

Four Seasons 3512R A/C Compressor and Component Kit - Front and Rear

Brand Four Seasons 3512R
Position Front and Rear
Product line PAC-Kit w/ Reman Compressor
Fits Buick and Oldsmobile · 5 vehicles

Reman compressor kit. A complete A/C compressor kit for straightforward replacement.

PAC-Kit packaging simplifies sourcing the compressor assembly.

$387.31Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $387.31
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Four Seasons PAC-Kit w/ Reman Compressor

Four Seasons 3512R is an A/C compressor kit for select GM SUVs with TRSA12 compressor applications. It is built for 2004-2007 Buick Rainier and 2004 Oldsmobile Bravada models with front and rear HVAC coverage, making it a direct-fit option for restoring air conditioning performance.

Key Features

  • Part number 3512R from Four Seasons
  • PAC-Kit w/ Reman Compressor product line
  • Fits TRSA12 compressor applications
  • Compatible with front and rear HVAC systems
  • Application-specific for Buick Rainier and Oldsmobile Bravada

Product Details

The Four Seasons PAC-Kit line combines the remanufactured compressor with the related A/C service components needed for the listed vehicle application. This kit is intended for 2004-2007 Buick Rainier and 2004 Oldsmobile Bravada models equipped with the TRSA12 compressor setup. If you are replacing a failed compressor on a Buick Rainier or Oldsmobile Bravada, part number 3512R provides a vehicle-matched solution for the factory HVAC system.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common A/C Problems This Part Addresses

  • Loss of cabin cooling from compressor failure
  • Noisy or seized A/C compressor operation
  • Inconsistent refrigerant circulation through the HVAC system
  • Poor front and rear air conditioning performance
  • System downtime after compressor wear or internal damage

Installation Notes and Tips

Verify the vehicle uses the TRSA12 compressor configuration before ordering. Inspect the system for contamination, leaks, and related wear before installation, and follow proper A/C service procedures for evacuation, flushing, oil balance, and refrigerant recharge. Confirm all replacement components match the listed application for the Buick Rainier or Oldsmobile Bravada.

Quality Assurance

Four Seasons 3512R is a remanufactured compressor kit from a brand known for HVAC service parts and application-specific A/C coverage. Use the listed fitment details to confirm the correct part for your vehicle before installation.

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2007BuickRainier4.2LL6Front and Rearw/ TRSA12 Compressor; 77561 (Reman Compressor), 83222 (Accum), 38623 (Orifice), 39011 (Exp Valve), 69991 (Flush Qty.2), 59007 (Oil Qty.2); PAC-Kit w/ Reman Compressor
2006BuickRainier4.2LL6Front and Rearw/ TRSA12 Compressor; 77561 (Reman Compressor), 83222 (Accum), 38623 (Orifice), 39011 (Exp Valve), 69991 (Flush Qty.2), 59007 (Oil Qty.2); PAC-Kit w/ Reman Compressor
2005BuickRainier4.2LL6Front and Rearw/ TRSA12 Compressor; 77561 (Reman Compressor), 83222 (Accum), 38623 (Orifice), 39011 (Exp Valve), 69991 (Flush Qty.2), 59007 (Oil Qty.2); PAC-Kit w/ Reman Compressor
2004BuickRainier4.2LL6Front and Rearw/ TRSA12 Compressor; 77561 (Reman Compressor), 83222 (Accum), 38623 (Orifice), 39011 (Exp Valve), 69991 (Flush Qty.2), 59007 (Oil Qty.2); PAC-Kit w/ Reman Compressor
2004OldsmobileBravada——Front and Rearw/ TRSA12 Compressor; 77561 (Reman Compressor), 83222 (Accum), 38623 (Orifice), 39011 (Exp Valve), 69991 (Flush Qty.2), 59007 (Oil Qty.2); PAC-Kit w/ Reman Compressor