Four Seasons 1740R A/C Compressor and Component Kit - Front

Four Seasons 1740R PAC-Kit w/ Reman Compressor

Four Seasons 1740R is an A/C compressor kit for select GM SUVs and crossovers with TRSA12 compressor applications. This PAC-Kit w/ Reman Compressor supports front HVAC service on the Buick Rainier, Chevrolet Trailblazer, Chevrolet Trailblazer EXT, GMC Envoy, GMC Envoy XL, and Oldsmobile Bravada.

Key Features

• Four Seasons PAC-Kit w/ Reman Compressor for A/C compressor replacement
• Part number 1740R for direct catalog identification
• Fits front HVAC applications on select 2003-2007 GM vehicles
• Application notes include TRSA12 compressor coverage and rear A/C exclusions where listed
• Referenced service components in the fitment notes include accumulator, orifice, flush, and oil part numbers

Application Details

This Four Seasons 1740R kit is listed for 2004-2007 Buick Rainier, front; 2004 Oldsmobile Bravada, front; 2003 Chevrolet Trailblazer, front; 2003 Chevrolet Trailblazer EXT, front; 2003 GMC Envoy, front; 2003 GMC Envoy XL, front; and 2003 Oldsmobile Bravada, N/A. For the Chevrolet Trailblazer, Chevrolet Trailblazer EXT, GMC Envoy, and GMC Envoy XL, the notes specify w/ TRSA12 compressor and w/o rear A/C. The part number 1740R is the key reference when matching this compressor kit to the correct vehicle setup.

What This Part Helps Address

• Loss of A/C compressor function
• Weak or inconsistent cabin cooling
• Noisy compressor operation tied to worn internal components
• Service replacement needs on TRSA12-equipped GM HVAC systems
• Front A/C repair on Buick Rainier, Chevrolet Trailblazer, GMC Envoy, and related models

Installation Notes

Verify the existing compressor type, rear A/C configuration, and vehicle application before installation. The fitment notes call for related service parts such as the accumulator, orifice, flush, and oil to be matched to the application. Confirm the vehicle is one of the listed 2003-2007 GM models before ordering Four Seasons 1740R.

Quality Assurance

Four Seasons is a recognized HVAC parts brand with coverage focused on service-ready air conditioning components. This PAC-Kit w/ Reman Compressor is cataloged for specific GM applications to support accurate replacement selection.