Four Seasons
Complete A/C Kit

Four Seasons 1265NK A/C Compressor and Component Kit

Brand Four Seasons 1265NK
Compressor Oil Included Included
Compressor Oil Type PAG Oil /150
Expansion Device Type Orifice Tubes
Gasket / Seals? Included
Kit Includes 58950 (New Compressor), 33140 (Accum), 38623 (Orifice), 59003 (Oil), O-Rings
Orifice Dia. IN 0.072
Orifice Tube Color White
Orifice Tube Style Standard
Receiver Drier/Accumulator Diameter IN 3.500
Receiver Drier/Accumulator Inlet Fitting Type Female O-Ring
Receiver Drier/Accumulator Length IN 9.000
Receiver Drier/Accumulator Outlet Fitting Type Male Insert O-Ring
Refrigerant Type R134a
Type Complete Air Conditioning Kit w/ New Compressor
Warranty Limited Lifetime
Product line Complete A/C Kit
Fits Chevrolet, GMC, Isuzu, and Oldsmobile · 17 vehicles

Complete A/C kit. Includes a new compressor, accumulator, orifice tube, oil, and O-rings.

PAG oil included. Pre-filled with PAG Oil /150 for proper compressor lubrication.

R134a compatible. Built for R134a refrigerant systems.

Cross-references Four Seasons 1265NK, 520557 and MK1042 for the same application. See all 3.

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Complete A/C Kit for HT6 Applications

The Four Seasons Complete A/C Kit 1265NK is a complete air conditioning kit with a new compressor for select GM and Isuzu trucks and SUVs using the HT6 compressor platform. It combines the major A/C service components needed for a full repair, including PAG oil, an accumulator, an orifice tube, and O-rings.

Built for R134a systems, this kit is a direct-fit solution for 1996-1998 Chevrolet Blazer, 1996-1998 Chevrolet S10, 1996-1998 GMC Jimmy, 1996-1998 GMC Sonoma, 1996-1998 Oldsmobile Bravada, and 1997-1998 Isuzu Hombre applications listed below.

  • Four Seasons Complete A/C Kit, part number 1265NK
  • Includes a new compressor, accumulator, orifice tube, PAG oil, and O-rings
  • Compressor oil included: PAG Oil /150
  • Uses an orifice tube expansion device with 0.072 in. diameter and white standard tube style
  • Receiver drier/accumulator features a 3.500 in. diameter and 9.000 in. length
  • R134a refrigerant type
  • Gaskets and seals included
  • Limited lifetime warranty

Product Line Details

Four Seasons Complete A/C Kit products are organized as application-specific repair kits that bundle the compressor and related service parts needed for the listed vehicle platform. The 1265NK kit is matched to HT6 compressor applications and OE reference 1136519 where noted, helping streamline A/C system service on compatible GM compact truck and SUV platforms.

Detailed Description

Four Seasons 1265NK is a complete air conditioning kit for vehicles equipped with the HT6 compressor. It is built around a new compressor and includes the supporting components commonly replaced during A/C system service: accumulator, orifice tube, PAG oil, and O-rings. The kit is configured for R134a refrigerant systems and uses a female O-ring inlet and male insert O-ring outlet on the accumulator. This part cross-references 520557 and MK1042 for the same application.

Fits 1996-1998 Chevrolet Blazer, N/A; Fits 1996-1997 Chevrolet S10, N/A; Fits 1998 Chevrolet S10, N/A; Fits 1996-1997 GMC Jimmy, N/A; Fits 1998 GMC Jimmy, N/A; Fits 1996-1997 GMC Sonoma, N/A; Fits 1998 GMC Sonoma, N/A; Fits 1996-1997 Oldsmobile Bravada, N/A; Fits 1998 Oldsmobile Bravada, N/A; Fits 1997-1998 Isuzu Hombre, N/A.

Common Repair Uses

  • Restoring cooling performance on a worn or failed A/C compressor system
  • Replacing a noisy, seized, or weak compressor in HT6-equipped vehicles
  • Addressing restricted refrigerant flow with a new orifice tube
  • Refreshing the accumulator and seals during A/C service
  • Servicing R134a systems on GM and Isuzu compact truck and SUV platforms

Installation Notes and Tips

Before installation, verify the vehicle uses the HT6 compressor and confirm the OE reference where listed. Replace the accumulator and orifice tube during compressor service, and evacuate and recharge the system with the correct R134a refrigerant and PAG Oil /150 specified for this kit. Inspect the system for contamination or leaks before returning the vehicle to service.

Quality Assurance

Four Seasons backs this kit with a limited lifetime warranty. The included components are matched to the listed applications for 1996-1998 Chevrolet Blazer, Chevrolet S10, GMC Jimmy, GMC Sonoma, Oldsmobile Bravada, and 1997-1998 Isuzu Hombre vehicles using the HT6 compressor platform.

This part fits 17 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1998ChevroletBlazer——N/Aw/ HT6 Compressor; Includes: 58950 (New Compressor), 33140 (Accum), 38623 (Orifice), 59003 (Oil), O-Rings; Complete A/C Kit
1998ChevroletS104.3LV6N/Aw/ HT6 Compressor; Compressor w/ OE No. 1136519; Includes: 58950 (New Compressor), 33140 (Accum), 38623 (Orifice), 59003 (Oil), O-Rings; Complete A/C Kit
1998GMCJimmy——N/Aw/ HT6 Compressor; Compressor w/ OE No. 1136519; Includes: 58950 (New Compressor), 33140 (Accum), 38623 (Orifice), 59003 (Oil), O-Rings; Complete A/C Kit
1998GMCSonoma4.3LV6N/Aw/ HT6 Compressor; Compressor w/ OE No. 1136519; Includes: 58950 (New Compressor), 33140 (Accum), 38623 (Orifice), 59003 (Oil), O-Rings; Complete A/C Kit
1998IsuzuHombre4.3LV6N/Aw/ HT6 Compressor; Includes: 58950 (New Compressor), 33140 (Accum), 38623 (Orifice), 59003 (Oil), O-Rings; Complete A/C Kit
1998OldsmobileBravada——N/Aw/ HT6 Compressor; Compressor w/ OE No. 1136519; Includes: 58950 (New Compressor), 33140 (Accum), 38623 (Orifice), 59003 (Oil), O-Rings; Complete A/C Kit
1997ChevroletBlazer——N/Aw/ HT6 Compressor; Includes: 58950 (New Compressor), 33140 (Accum), 38623 (Orifice), 59003 (Oil), O-Rings; Complete A/C Kit
1997ChevroletS104.3LV6N/Aw/ HT6 Compressor; Includes: 58950 (New Compressor), 33140 (Accum), 38623 (Orifice), 59003 (Oil), O-Rings; Complete A/C Kit
1997GMCJimmy——N/Aw/ HT6 Compressor; Includes: 58950 (New Compressor), 33140 (Accum), 38623 (Orifice), 59003 (Oil), O-Rings; Complete A/C Kit
1997GMCSonoma4.3LV6N/Aw/ HT6 Compressor; Includes: 58950 (New Compressor), 33140 (Accum), 38623 (Orifice), 59003 (Oil), O-Rings; Complete A/C Kit
1997IsuzuHombre4.3LV6N/Aw/ HT6 Compressor; Includes: 58950 (New Compressor), 33140 (Accum), 38623 (Orifice), 59003 (Oil), O-Rings; Complete A/C Kit
1997OldsmobileBravada4.3LV6N/Aw/ HT6 Compressor; Includes: 58950 (New Compressor), 33140 (Accum), 38623 (Orifice), 59003 (Oil), O-Rings; Complete A/C Kit
1996ChevroletBlazer——N/Aw/ HT6 Compressor; Includes: 58950 (New Compressor), 33140 (Accum), 38623 (Orifice), 59003 (Oil), O-Rings; Complete A/C Kit
1996ChevroletS104.3LV6N/Aw/ HT6 Compressor; Includes: 58950 (New Compressor), 33140 (Accum), 38623 (Orifice), 59003 (Oil), O-Rings; Complete A/C Kit
1996GMCJimmy——N/Aw/ HT6 Compressor; Includes: 58950 (New Compressor), 33140 (Accum), 38623 (Orifice), 59003 (Oil), O-Rings; Complete A/C Kit
1996GMCSonoma4.3LV6N/Aw/ HT6 Compressor; Includes: 58950 (New Compressor), 33140 (Accum), 38623 (Orifice), 59003 (Oil), O-Rings; Complete A/C Kit
1996OldsmobileBravada4.3LV6N/Aw/ HT6 Compressor; Includes: 58950 (New Compressor), 33140 (Accum), 38623 (Orifice), 59003 (Oil), O-Rings; Complete A/C Kit
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 1265NK520557MK1042