Agricultural & Heavy Equipment AC Expansion Valves
The expansion valve is the precision metering device at the heart of your AC system's cooling performance. It controls exactly how much refrigerant flows into the evaporator, maintaining the precise pressure differential that allows the system to absorb heat from your cab and deliver cold air. When it's working correctly, you don't notice it. When it fails, your AC system suffers — and so does your compressor.
Quality Farm Supply stocks expansion valves for a wide range of tractors, combines, skid steers, and heavy equipment — direct-fit replacements built to OEM specifications.
How a Failing Expansion Valve Affects Your System
- Restricted flow — a clogged or stuck-closed valve starves the evaporator of refrigerant, resulting in poor cooling and compressor overload
- Uncontrolled flow — a stuck-open valve floods the evaporator, causing liquid refrigerant to reach the compressor and causing serious damage
- Contamination damage — debris and moisture from a failed compressor or saturated receiver drier can clog or corrode the valve's precision internals
When to Replace Your Expansion Valve
- Compressor failure — metal debris from an internally failed compressor travels downstream and can damage the expansion valve
- Poor cooling with no obvious cause — a malfunctioning expansion valve is a common culprit when the system is charged but not cooling properly
- Complete AC overhaul — replacing the expansion valve alongside the compressor, receiver drier, and O-rings ensures the new system starts clean
- R134a conversion — some R12-era expansion valves are not compatible with R134a and should be replaced during conversion
For a complete system refresh, pair your new expansion valve with a compressor, condenser, receiver drier, and full O-ring set — or shop our complete AC overhaul kits for everything in one order.
AP Air
Expansion Valve for Mahindra C33157EO, 903-822
SKU:QFS-903-822
Expansion Valve for Mahindra C33157EO
Expansion Valve for Mahindra replaces OEM number C33157EO. Built for reliable replacement performance, this part is a strong option for restoring proper cab comfort and equipment function.
Fits Mahindra Tractor: 2655 HST - Replaces OEM Number C33157EO
Please verify the OEM reference number and equipment fitment before ordering.
AP Air
Expansion Valve, Block Type for JCB & Terex 265/00278
SKU:QFS-93-141
Expansion Valve, Block Type for JCB & Terex 265/00278
Expansion Valve, Block Type for JCB, Terex replaces OEM numbers ABPN83308011, 4379-RD5-6868-0, 60012-5011, 265/00278. 1/4" Mounting Holes, R12 and R134a Compatible Can use OE Red Dot Version 71R8301. Built for reliable replacement performance, this part is a strong option for restoring proper cab comfort and equipment function.
Fits JCB Telescopic Handler: 527-58 - Replaces OEM Numbers 265/00278, 30/914005
Fits Terex Truck: 3305 Articulated Truck
Please verify the OEM reference number and equipment fitment before ordering.
AP Air
Expansion Valve, Block Type for Case IH & Claas 00 0625 864 0
SKU:QFS-903-738
Expansion Valve, Block Type for Case IH & Claas 00 0625 864 0
Expansion Valve, Block Type for Case IH, Caterpillar, Claas replaces OEM numbers 625.864.0, 82023542, 306-5618, ACW0932950. Built for reliable replacement performance, this part is a strong option for restoring proper cab comfort and equipment function.
Fits Case IH Combine: 5140, 5150, 6130, 6140, 6150, 7120, 7140, 7150, 7230, 7250 and more - Replaces OEM Number 82023542
Fits Case IH Swather: WD1203, WD1903, WD2303 - Replaces OEM Number 82023542
Fits Case IH Tractor: DX40, DX48, DX55, DX60, FARMALL 110A, FARMALL 40, FARMALL 45, FARMALL 50, FARMALL 55, FARMALL 55C and more - Replaces OEM Number 82023542
Fits Caterpillar Backhoe: 415F2, 416F2, 420F2, 422F2, 428F2, 430F2, 434F2, 444F2, 450F - Replaces OEM Number 306-5618
Fits Caterpillar Combine: Lexion 410, Lexion 420, Lexion 430, Lexion 440, Lexion 442, Lexion 450, Lexion 452, Lexion 460, Lexion 460R, Lexion 465 and more - Replaces OEM Number 625.864.0
Fits Caterpillar Excavator: 303.5E2 Mini, 304E2 CR Mini, 304E2 Mini, 305.5E2 Mini, 305E2 Mini, 306E2 Mini, 307, 307E Mini, 308E Mini, 308E2 Mini and more - Replaces OEM Number 306-5618
Please verify the OEM reference number and equipment fitment before ordering.
AP Air
Expansion Valve for Volvo 14509331
SKU:QFS-903-762
Expansion Valve for Volvo 14509331
Expansion Valve for Volvo replaces OEM numbers 14509331, 52228390. Built for reliable replacement performance, this part is a strong option for restoring proper cab comfort and equipment function.
Fits Volvo Excavator: EC135B, EC140B, EC160B, EC180B, EC210B, EC210CL, EC240CL, EC290B, EC330B, EC360B and more - Replaces OEM Numbers 14509331, 52228390
Please verify the OEM reference number and equipment fitment before ordering.
AP Air
Expansion Valve for Volvo 16271772
SKU:QFS-903-860
Expansion Valve for Volvo 16271772
Expansion Valve for Volvo replaces OEM numbers VOE15075800, RD-5-12215-0P, 16271772, VOE16271772. Built for reliable replacement performance, this part is a strong option for restoring proper cab comfort and equipment function.
Fits Volvo Truck: A40G Articulated Truck - Replaces OEM Numbers 16271772, VOE16271772
Fits Volvo Wheel Loader: L110F Wheel, L120F Wheel, L120S Wheel, L150F Wheel, L150G Wheel, L180F HL Wheel, L180F Wheel, L180G Wheel, L20F Wheel, L220F Wheel and more - Replaces OEM Numbers 16271772, VOE15075800, VOE16271772
Please verify the OEM reference number and equipment fitment before ordering.
AP Air
Expansion Valve for Volvo 04-150010
SKU:QFS-902-230
Expansion Valve for Volvo 04-150010
Expansion Valve for Volvo replaces OEM numbers 11711958, 11998503, 15058102, 04-150010. R12 and R134a Compatible. Built for reliable replacement performance, this part is a strong option for restoring proper cab comfort and equipment function.
Fits Volvo Truck: A25C Articulated Truck, A25D Articulated Truck, A25E Articulated Truck, A30 Articulated Truck, A30C Articulated Truck, A30D Articulated Truck, A30E Articulated Truck, A35 Articulated Truck, A35D Articulated Truck, A35E Articulated Truck and more - Replaces OEM Numbers 11711958, 11998503, 15058102
Fits Volvo Wheel Loader: L110E Wheel, L120C Wheel, L120E Wheel, L150C Wheel, L180C Wheel, L180D Wheel, L180E Wheel, L220E Wheel, L330C Wheel, L330D Wheel and more - Replaces OEM Numbers 04-150010, 11711958, 11998503, 15058102, VOE11711958 and more
Please verify the OEM reference number and equipment fitment before ordering.
AP Air
Expansion Valve for Massey Ferguson 1034564M91
SKU:QFS-902-206
Expansion Valve for Massey Ferguson 1034564M91
Expansion Valve for Massey Ferguson replaces OEM numbers 237409M1, 1034564M91. R12 and R134a Compatible. Built for reliable replacement performance, this part is a strong option for restoring proper cab comfort and equipment function.
Fits Massey Ferguson Combine: 510, 540, 750, 760 - Replaces OEM Number 237409M1
Fits Massey Ferguson Tractor: 1080, 1100, 1130, 1150 - Replaces OEM Number 1034564M91
Please verify the OEM reference number and equipment fitment before ordering.
AP Air
Expansion Valve for Kubota 36919-96120
SKU:QFS-902-279
Expansion Valve for Kubota 36919-96120
Expansion Valve for Kubota replaces OEM numbers 36919-96120, 70000-67459. Built for reliable replacement performance, this part is a strong option for restoring proper cab comfort and equipment function.
Fits Kubota Tractor: M5950, M6950, M7950, M8950 - Replaces OEM Numbers 36919-96120, 70000-67459
Please verify the OEM reference number and equipment fitment before ordering.
AP Air
Expansion Valve for Komatsu & John Deere AN51515-A0640
SKU:QFS-903-7462
Expansion Valve for Komatsu & John Deere AN51515-A0640
Expansion Valve for John Deere, Komatsu replaces OEM numbers AN51515-A0640, FXB00004819. Built for reliable replacement performance, this part is a strong option for restoring proper cab comfort and equipment function.
Fits John Deere Excavator: 60G - Replaces OEM Number FXB00004819
Fits Komatsu Wheel Loader: WA270-7, WA270-8, WA320-7, WA380-7, WA380-8, WA470-7, WA500-7 - Replaces OEM Number AN51515-A0640
Please verify the OEM reference number and equipment fitment before ordering.
AP Air
Expansion Valve for John Deere 4465995
SKU:QFS-903-835
Expansion Valve for John Deere 4465995
Expansion Valve for John Deere replaces OEM numbers 4465995, 447500-3540. Built for reliable replacement performance, this part is a strong option for restoring proper cab comfort and equipment function.
Fits John Deere Excavator: 120C, 160CLC, 180CW, 450CLC, 450DLC, 600C LC, 650DLC, 800C, 850DLC - Replaces OEM Numbers 4465995, 447500-3540
Please verify the OEM reference number and equipment fitment before ordering.
AP Air
Expansion Valve for John Deere & Hitachi 4658938
SKU:QFS-903-761
Expansion Valve for John Deere & Hitachi 4658938
Expansion Valve for Hitachi, John Deere replaces OEM numbers 4658938, 503714-1501. Built for reliable replacement performance, this part is a strong option for restoring proper cab comfort and equipment function.
Fits Hitachi Excavator: 160LC-3, ZX200LC-3, ZX350LC-3 - Replaces OEM Numbers 4658938, 503714-1501
Fits John Deere Excavator: 120D, 160DLC, 190DW, 200DLC, 220DW, 240DLC, 270DLC, 350DLC - Replaces OEM Number 4658938
Please verify the OEM reference number and equipment fitment before ordering.
AP Air
Expansion Valve for Kobelco & Case IH 030059720
SKU:QFS-903-830
Expansion Valve for Kobelco & Case IH 030059720
Expansion Valve for Case IH, Ford/New Holland, Kobelco replaces OEM numbers AN51515-A0400, KHR2803, YT20M00004S002, 51515-A0250. Built for reliable replacement performance, this part is a strong option for restoring proper cab comfort and equipment function.
Fits Case IH Excavator: CX130, CX160, CX210, CX210N, CX240, CX290, CX330, CX460, CX800 - Replaces OEM Number KHR2803
Fits Ford/New Holland Excavator: E215, E70, E80, EH130 - Replaces OEM Number YT20M00004S002
Fits Kobelco Blade Runner: ED150, ED150-1E, ED190LC, ED190LC-6E - Replaces OEM Number YT20M00004S002
Fits Kobelco Excavator: 70SR, SK115SRDZ, SK135, SK135SR, SK135SR-1E, SK135SRLC, SK135SRLC-1E, SK160LC, SK160LC-6E, SK200-6 and more - Replaces OEM Numbers 51515-A0250, YT20M00004S002
Fits Komatsu Dump Truck: HD255-5, HM300-2, HM350-2, HM350-2R, HM400-2, HM400-2R - Replaces OEM Number AN51515-A0400
Fits Link-Belt Excavator: 210LX - Replaces OEM Numbers 030059720, AN51515-A0400, KHR2803
Please verify the OEM reference number and equipment fitment before ordering.