When your John Deere tractor's A/C system starts blowing warm air — or stops working altogether — the answer isn't a new machine. Our fitment-specific John Deere A/C Conversion Kits replace outdated A6 and Denso compressors with modern Sanden-style rotary units that run cooler, draw less power, and are fully compatible with today's R134a refrigerant standard. From classic 4230 row-crop tractors to large-frame 4840s, each kit is sourced from AP Air and includes everything needed for a complete installation — compressor, receiver drier, expansion valve, and O-rings — so you can restore factory-quality A/C at a fraction of the cost of new iron.
AP Air
Air Conditioning Conversion Kit for John Deere 4640, 4840 - A6 to Sanden, 990-406K
SKU:QFS-990-406K
Fits John Deere Tractors 4640, 4840
- Replaces Original A6 Compressor, Kit Includes 990-406 Sanden Conversion Kit, Receiver Drier, Expansion Valve, and O-Rings
- Kit allows for the use of the original hoses
AP Air
Air Conditioning Conversion Kit for John Deere 4050, 4055, 4250, 4255, 4450, 4455 - Denso to Sanden
SKU:QFS-990-416
Fits John Deere 4050, 4055, 4250, 4255, 4450, 4455
- Includes Suction & Discharge Hoses
- Eliminates Thread Stripping of Original Manifold & Hoses
AP Air
Air Conditioning Conversion Kit for John Deere 4040, 4230, 4240, 4430, 4440 - A6 to Sanden
SKU:QFS-990-412
Fits John Deere 4040, 4040 Euro, 4230, 4240, 4240 Euro, 4240S, 4430, 4440, 4440 Euro, and more
AP Air
Air Conditioning Conversion Kit for John Deere 1640, 2040, 2140, 2350, 2355 and more - A6 to Sanden, 990-4402
SKU:QFS-990-4202
Fits John Deere 1640, 2040, 2040S, 2140, 2250 Euro, 2350, 2355, 2450 Euro, 2550, 2555, and more
Brackets Mount To Original A6 Mounting Brackets, Uses Original Hoses
AP Air
Air Conditioning Conversion Kit for John Deere - A6 to Sanden
SKU:QFS-990-404
Fits John Deere 6600, 6620, 6622, 7700, 7720, 7722, 9940, 655B, 5200, 5400, 5440, 5460 and more
- Includes: Compressor, Conversion Brackets, Manifold, OE Style High & Low Pressure Switches, and R134A Adapters.
- Kit allows for the use of the original belt and hoses
AP Air
Air Conditioning Compressor Conversion Kit for John Deere - A6 to Sanden Style
SKU:QFS-990-403
Fits John Deere 6600, 6622, 7700, 7720, 7722, 9940, 655B, 755B, 5200, 5400, 5440, 5460 and more
AP Air
Air Conditioning Conversion Kit for John Deere Swathers - A6 to Sanden Style
SKU:QFS-990-423AP
Fits John Deere Swathers 2270, 2280, 2320, 2420
Uses Original Belt and Hoses
AP Air
Air Conditioning Conversion Kit for John Deere 6000 Sprayer - A6 to Sanden
SKU:QFS-990-175
Fits John Deere 6000 Sprayer
Replaces A6 Compressor Using Four Lower Mounting Holes
AP Air
Air Conditioning Conversion Kit for John Deere 4640, 4840 - A6 to Sanden Style
SKU:QFS-990-405
Fits John Deere Cotton Picker 9940 and John Deere Tractors 4640, 4840
Replaces A6 Compressor, Kit Allows for the Use of the Original Hoses
AP Air
Air Conditioning Conversion Kit for John Deere 4340, 4840 - A6 to Sanden
SKU:QFS-990-406
Fits John Deere 9940, 4640, 4840
Replaces A6 Compressor, Kit allows for the use of the original hoses
AP Air
Air Conditioning Conversion Kit for John Deere 4230, 4430, 4630 - A6 to Denso
SKU:QFS-990-407
Fits John Deere Tractors 4230, 4430, 4630
Kit Includes Suction and Discharge Hoses with Additional Charge Ports for Pressure Switches
AP Air
Air Conditioning Conversion Kit for John Deere 2040, 2140, 2350, 2350 - A6 to Sanden Style
SKU:QFS-990-4202AP
Fits John Deere 1640, 2040, 2040S, 2140, 2250 Euro, 2350, 2550, 2650N Euro, 2750
Brackets Mount to Original A6 Mounting Brackets, Uses Original Hoses