Four Seasons 1971NK A/C Compressor and Component Kit - Front

Complete A/C Kit for Ranger, Explorer, and B4000

Four Seasons Complete A/C Kit 1971NK is a complete air conditioning kit with a new compressor for select Ford, Mazda, and Mercury applications. It combines the major service components needed for FS10 compressor systems, including the compressor, accumulator, orifice tube, compressor oil, and O-rings.

Built for R134a systems, this kit supports common HVAC service work on Ford Ranger, Mazda B4000, and related Explorer and Mountaineer applications. The Four Seasons Complete A/C Kit line is organized as a full-system replacement solution for vehicles that need matched A/C components in one package.

Key Features

• Four Seasons part number 1971NK
• Complete A/C compressor kit with new compressor
• Includes compressor oil, accumulator, orifice tube, and O-rings
• Uses a standard red orifice tube with .062 in. diameter
• Designed for R134a refrigerant systems
• Receiver drier/accumulator dimensions: 3.500 in. diameter, 9.500 in. length
• Accumulator inlet: 0.625 in. male insert O-ring
• Accumulator outlet: 0.750 in. female springlock
• Limited lifetime warranty

Detailed Description

Four Seasons 1971NK is a complete A/C compressor kit for vehicles equipped with an FS10 compressor. The kit includes 58132 new compressor, 83014 accumulator, 38635 orifice tube, 59007 oil, and O-rings, giving you the core components needed for a full air conditioning service. It is specified for R134a refrigerant and uses a standard red orifice tube with a .062-inch opening for the listed applications.

This kit cross-references Monroe Shocks & Struts (e.g., 520546, MK1010) for the same application. It is a direct-fit service solution for select Ford Ranger, Ford Explorer, Mazda B4000, and Mercury Mountaineer models that use the listed FS10 compressor configuration. The Four Seasons 1971NK part number is also referenced as 1971NK for catalog and search purposes.

Vehicle Fitment

• Fits 2002-2011 Ford Ranger, N/A, w/ FS10 Compressor; Includes: 58132 (New Compressor), 83014 (Accum), 38635 (Orifice), 59007 (Oil), O-Rings; Complete A/C Kit
• Fits 2006 Mazda B4000, N/A, w/ FS10 Compressor; Compressor w/ 3 O'Clk Coil; w/ Red Orifice Tube; Includes: 58132 (New Compressor), 83014 (Accum), 38635 (Orifice), 59007 (Oil), O-Rings; Complete A/C Kit
• Fits 2004-2005 Ford Explorer Sport Trac, Front, w/ FS10 Compressor; Includes: 58132 (New Compressor), 83014 (Accum), 38635 (Orifice), 59007 (Oil), O-Rings; Complete A/C Kit
• Fits 1998-2005 Mazda B4000, N/A, w/ FS10 Compressor; w/ Red Orifice Tube; Includes: 58132 (New Compressor), 83014 (Accum), 38635 (Orifice), 59007 (Oil), O-Rings; Complete A/C Kit
• Fits 2002-2003 Ford Explorer Sport, Front, w/ FS10 Compressor; Includes: 58132 (New Compressor), 83014 (Accum), 38635 (Orifice), 59007 (Oil), O-Rings; Complete A/C Kit
• Fits 1998-2001 Ford Explorer, N/A, w/ FS10 Compressor; Includes: 58132 (New Compressor), 83014 (Accum), 38635 (Orifice), 59007 (Oil), O-Rings; Complete A/C Kit
• Fits 2001 Ford Explorer Sport, N/A, w/ FS10 Compressor; Includes: 58132 (New Compressor), 83014 (Accum), 38635 (Orifice), 59007 (Oil), O-Rings; Complete A/C Kit
• Fits 2001 Ford Explorer Sport Trac, N/A, w/ FS10 Compressor; Includes: 58132 (New Compressor), 83014 (Accum), 38635 (Orifice), 59007 (Oil), O-Rings; Complete A/C Kit
• Fits 1998-2001 Ford F-100 Ranger, N/A, w/ FS10 Compressor; w/ Factory Air; Includes: 58132 (New Compressor), 83014 (Accum), 38635 (Orifice), 59007 (Oil), O-Rings; Complete A/C Kit
• Fits 1998-2001 Ford Ranger, N/A, w/ FS10 Compressor; w/ Factory Air; Includes: 58132 (New Compressor), 83014 (Accum), 38635 (Orifice), 59007 (Oil), O-Rings; Complete A/C Kit
• Fits 1998-2001 Mazda B3000, N/A, w/ FS10 Compressor; w/ Red Orifice Tube; Includes: 58132 (New Compressor), 83014 (Accum), 38635 (Orifice), 59007 (Oil), O-Rings; Complete A/C Kit
• Fits 1998-2001 Mercury Mountaineer, N/A, w/ FS10 Compressor; Includes: 58132 (New Compressor), 83014 (Accum), 38635 (Orifice), 59007 (Oil), O-Rings; Complete A/C Kit

Common A/C Problems This Kit Addresses

• Loss of cooling from a worn or failed compressor
• Restricted refrigerant flow caused by a clogged orifice tube
• Moisture control issues from an aging accumulator
• Leaking seals or O-rings in the A/C circuit
• System service needs after compressor replacement on FS10-equipped vehicles

Installation Notes and Tips

Verify FS10 compressor fitment before ordering, since this kit is application-specific. Replace the accumulator, orifice tube, and O-rings during service, and follow proper evacuation, oil balancing, and recharge procedures for R134a systems. Confirm the accumulator inlet and outlet fitting styles match the vehicle before installation.

Quality Assurance

Four Seasons backs this Complete A/C Kit with a limited lifetime warranty. The kit is built around matched service components for the listed Ford Ranger, Mazda B4000, Ford Explorer, Ford Explorer Sport Trac, Ford Explorer Sport, Ford F-100 Ranger, and Mercury Mountaineer applications.