HomeHVAC > A/C Clutch and CompressorFour Seasons 4781NK A/C Compressor and Component Kit
Part #: 4781NK

Four Seasons 4781NK A/C Compressor and Component Kit

Complete A/C Kit
4 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Complete A/C Kit
Fitment: Ford, F-250 Super Duty and F-350 Super Duty
Easy Returns — Return within 60 days for a full refund
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Reliable A/C Compressor Kit for Ford F-250 and F-350 Super Duty

The Four Seasons Complete A/C Kit 4781NK is designed to restore efficient air conditioning performance in Ford F-250 Super Duty and F-350 Super Duty trucks. This comprehensive kit includes all necessary components to replace your vehicle's A/C compressor system with precision and reliability.

  • Includes new compressor (part 68192) and accumulator (part 83089)
  • Compressor oil included for optimal lubrication
  • Standard red orifice tube with .062 inch diameter
  • Receiver drier/accumulator with 3-inch diameter and male springlock inlet fitting
  • Compatible with R134a refrigerant systems
  • Gaskets and seals included for proper installation
  • Limited lifetime warranty for long-term assurance

Complete A/C Kit Product Line Overview

The Four Seasons Complete A/C Kit line provides a full set of components required for a thorough A/C system replacement. This kit includes a new compressor, accumulator, orifice tube, and necessary seals and oil, ensuring compatibility and ease of installation. The Complete A/C Kit 4781NK is tailored specifically for Ford Super Duty trucks, offering a convenient solution for restoring factory-level air conditioning performance.

Detailed Product Description

This A/C compressor kit is engineered for Ford F-250 Super Duty and F-350 Super Duty models equipped with R134a refrigerant systems. The kit features a new compressor (part 68192) pre-filled with compressor oil to maintain proper lubrication and system longevity. The included accumulator (part 83089) measures 3 inches in diameter and 9 inches in length, with a male springlock inlet fitting sized at 0.625 inches (19.05 mm) and a P-nut outlet fitting sized at 0.625 inches (15.875 mm). The standard red orifice tube (.062 inch diameter) regulates refrigerant flow effectively within the system. Gaskets and seals are provided to ensure a secure, leak-free installation.

Common Applications and Issues Addressed

  • Replacement of worn or failing A/C compressors in Ford F-250 and F-350 Super Duty trucks
  • Resolving insufficient cooling or compressor noise
  • Fixing refrigerant leaks due to damaged seals or gaskets
  • Addressing system contamination with a new accumulator and orifice tube
  • Upgrading to a complete kit for comprehensive A/C system repair

Installation Notes and Tips

  • Ensure system is fully evacuated and flushed before installation
  • Use the included compressor oil to refill the system as specified
  • Verify compatibility with R134a refrigerant systems
  • Replace all seals and gaskets to prevent leaks
  • Follow manufacturer torque specifications for fittings and mounting

Quality Assurance and Warranty

The Four Seasons Complete A/C Kit 4781NK comes with a limited lifetime warranty, reflecting the brand's commitment to quality and durability. Each component is manufactured to meet or exceed OEM standards, providing reliable performance for Ford F-250 Super Duty and F-350 Super Duty vehicles.

BrandFour Seasons
Part Number4781NK
PositionComplete A/C Kit
Compressor Oil IncludedIncluded
Compressor Oil TypeOil
Expansion Device TypeOrifice Tubes
Gasket / Seals?Included
Kit Includes68192 (New Compressor), 83089 (Accum), 38635 (Orifice), 59007 (Oil), O-Rings
Orifice Dia. IN.062
Orifice Tube ColorRed
Orifice Tube StyleStandard
Receiver Drier/Accumulator Diameter IN3.000
Receiver Drier/Accumulator Inlet Fitting Size IN0.625
Receiver Drier/Accumulator Inlet Fitting Size MM19.050
Receiver Drier/Accumulator Inlet Fitting TypeMale Springlock
Receiver Drier/Accumulator Length IN9.000
Receiver Drier/Accumulator Outlet Fitting Size IN0.625
Receiver Drier/Accumulator Outlet Fitting Size MM15.875
Receiver Drier/Accumulator Outlet Fitting TypeP-Nut Fitting
Refrigerant TypeR134a
TypeComplete Air Conditioning Kit w/ New Compressor
WarrantyLimited Lifetime

This part fits 4 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009FordF-250 Super Duty6.4LV8N/Aw/ FS20 Compressor; Includes: 68192 (New Compressor), 83089 (Accum), 38635 (Orifice), 59007 (Oil), O-Rings; Complete A/C Kit
2009FordF-350 Super Duty6.4LV8N/Aw/ FS20 Compressor; Includes: 68192 (New Compressor), 83089 (Accum), 38635 (Orifice), 59007 (Oil), O-Rings; Complete A/C Kit
2008FordF-250 Super Duty6.4LV8N/Aw/ FS20 Compressor; Includes: 68192 (New Compressor), 83089 (Accum), 38635 (Orifice), 59007 (Oil), O-Rings; Complete A/C Kit
2008FordF-350 Super Duty6.4LV8N/Aw/ FS20 Compressor; Includes: 68192 (New Compressor), 83089 (Accum), 38635 (Orifice), 59007 (Oil), O-Rings; Complete A/C Kit

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

4781NK520246MK1083

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.