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Komatsu Dozer Cooling

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Komatsu Dozer Cooling parts list
Image Fits Model Description Part # Price Product Details
Radiator for Komatsu D65EX-17, D65PX-17, D65WX-17 Dozer – 14X-03-61111 See Details D65EX-17, D65PX-17, D65WX-17 Radiator 14X-03-61111
From $3,533.00
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Radiator for Komatsu D61EX-15, D61PX-15 Dozer – 134-03-71112 See Details D61EX-15, D61PX-15 Radiator 134-03-71112
From $4,368.00
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Oil Cooler for Komatsu D71EXI Dozer – 14Y-03-41100 See Details D71EXI Oil Cooler 14Y-03-41100
From $3,034.00
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Oil Cooler for Komatsu D66S-1 Dozer – 142-03-12211 See Details D66S-1 Oil Cooler 142-03-12211
From $2,219.00
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Oil Cooler for Komatsu D65EX-12, D65PX-12 Dozer – 14Z-03-11232 See Details D65E-12, D65EX-12, D65EX-12U, D65P-12, D65PX-12, D65PX-12U Oil Cooler 14Z-03-11232
From $1,190.00
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Transmission Oil Cooler for Komatsu D275A-5, D275AX-5 Dozer – 17M-03-45111 See Details D275A-5, D275AX-5 Transmission Oil Cooler 17M-03-45111
From $1,251.00
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See Details D31EX-22 (S/N 60001-UP), D31PX-22 (S/N 60001-UP), D37EX-22 (S/N 60001-UP), D37PX-22 (S/N 60001-UP) Radiator 11Y-03-34211
From $1,400.00
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Komatsu Water Pump 6275-61-1200 for PC138US See Details D37EX-23, D37EX-24, D37EXI-23, D37EXI-24, D37PX-23, D37PX-24, D37PXI-23, D37PXI-24 D39EX-23, D39EX-24, D39EXI-23, D39EXI-24, D39PX-23, D39PX-24, D39PXI-23, D39PXI-24, PC78US-10, PC78UU-10, PC88MR-10, PC128USI-10, PC130-11, PC138US-10, PC138US-11 Water Pump 6275-61-1200
$490.00
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Komatsu Charge Air Cooler for D31 PX-21A, D31EX-21 Dozers (6737-61-4100) See Details D31PX-21A, D31EX-21 Charge Air Cooler 6737-61-4100
From $1,273.00
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Komatsu Radiator for D31EX-21, D31PX-21A (11y-03-12110) See Details D31EX-21, D31PX-21A Radiator 11y-03-12110
From $2,995.00
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Komatsu Radiator for D65A, D65E, D65A-8, D65E-8, D68E Dozers (144-03-00360) See Details D65A, D65E, D65A-8, D65E-8, D68E Radiator 144-03-00360
From $4,343.00
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Komatsu D61EX-12 Radiator (134-03-61113) See Details D61EX-12, D61E-12, D61PX-12, D61EX-15 Radiator 134-03-61113
From $6,003.00
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Komatsu Radiator for D65PX-12 Dozers (DF1698298R) See Details D65PX-12 Radiator DF1698298R
$1,404.00
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Komatsu Oil Cooler for D155 Dozer (17A-03-23341) See Details D155 Oil Cooler 17A-03-23341
From $1,486.00
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Komatsu D66S-1 Oil Cooler (142-62-14410) See Details D66S-1 Oil Cooler 142-62-14410
$1,839.00
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Komatsu D31PX-21A, D31PX-21A Oil Cooler (11Y0311314) See Details D31PX-21A, D31PX-21A Oil Cooler 11Y0311314
From $2,323.00
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Komatsu Oil Cooler for D31A-17, D31E-17, D31E-20, D31P-17 (113-49-31111) See Details D31A-17, D31E-17, D31E-20, D31P-17 Oil Cooler 113-49-31111
$1,251.00
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Komatsu Oil Cooler for D21A, D21A-7 Dozers (103-49-31291) See Details D21A, D21A-7 Oil Cooler 103-49-31291
$1,251.00
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Komatsu Radiator for D155AX-7, D155AX-8 Bulldozers (17A0352511) See Details D155AX-7, D155AX-8, D155AX Radiator 17A-03-51112
From $6,641.00
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Komatsu Radiator for D41S-3 Crawler Loaders (84061782) See Details D41S-3 Radiator 84061782
From $2,336.00
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Komatsu Radiator for D155AX-6 (17A-03-41113) See Details D155AX-6 Radiator 17A-03-41113
From $3,674.00
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Komatsu Radiator for D65EX-15, D65PX-15, D65WX-15 Dozers (14X-03-35111) See Details D65EX-15EO, D65PX-15EO, D65WX-15EO Radiator 14X-03-35111
From $3,587.00
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Komatsu Radiator for D65PX-12, D65 Bulldozers (14X-03-11212) See Details D65PX-12, D65, D65E-12, D65E-12, D65EX-12, D65EX-12U, D65P-12, D65PX-12U, D85E-SS-2-E, D85E-SS-2A-E, D85ESS-2, D85ESS-2A Radiator 14X-03-11212
From $4,390.00
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Komatsu Radiator for D21A, D20P-6, D21PG-7A (IR-103-03-00120) See Details D20A-6, D20P-6, D20PG-7A, D21A, D21P-6B, D21PG-7A, D21PL-6, D21QG-7, D21S-6, D21S-7 Radiator IR-103-03-00120
$2,194.00
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Komatsu Radiator for D39PX-21 Dozer (11Y-03-11111) See Details D39PX-21 Radiator 11Y-03-11111
From $3,885.00
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See Details D61PX-15 Radiator 134-03-73110
From $2,898.00
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Komatsu Dozer Radiator - Heavy-duty cooling solution, Made in USA See Details D20A-6, D20P-6, D20PG-7A, D21A, D21P-6B, D21PG-7A, D21PL-6, D21QG-7, D21S-6, D21S-6, D21S-7 Radiator 103-03-00120
From $2,194.00
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0 Komatsu Dozer Oil Cooler D31PX-21, D31EX-21, D37EX-21, D37PX-21 Oil Cooler New Made in USA -- 11Y-03-12312 See Details D31PX-21, D31EX-21, D37EX-21, D37PX-21 Oil Cooler 11Y-03-12312
$2,323.00
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Radiators, oil coolers, charge air coolers, and water pumps for Komatsu crawler dozers, covering a wide range of D-series machines from compact D20/D21 models through large D155 bulldozers. Components are available for both older generation and current production series across the full Komatsu dozer lineup.

Fits Models At A Glance

  • D20/D21 Series: D20A-6, D20P-6, D20PG-7A, D21A, D21A-7, D21P-6B, D21PG-7A, D21PL-6, D21QG-7, D21S-6, D21S-7
  • D31 Series: D31A-17, D31E-17, D31E-20, D31EX-21, D31EX-22, D31P-17, D31PX-21, D31PX-21A, D31PX-22
  • D37/D39 Series: D37EX-21, D37EX-22, D37EX-23, D37EX-24, D37PX-21, D37PX-22, D37PX-23, D37PX-24, D39EX-23, D39EX-24, D39PX-21, D39PX-22, D39PX-23, D39PX-24
  • D41 Series: D41S-3
  • D61/D65/D66/D68 Series: D61E-12, D61EX-12, D61EX-15, D61PX-12, D61PX-15, D65A, D65A-8, D65E, D65E-8, D65E-12, D65EX-12, D65EX-15EO, D65P-12, D65PX-12, D65PX-15EO, D65WX-15EO, D66S-1, D68E
  • D85 Series: D85E-SS-2, D85E-SS-2A, D85ESS-2, D85ESS-2A
  • D155 Series: D155, D155AX-6, D155AX-7, D155AX-8

Key Notes

  • Part Types: Radiators, oil coolers, charge air coolers, and water pumps available across model coverage
  • Engine Compatibility: Water pump fitment includes QSB3.3 and SAA4D95LE engine applications
  • Serial Number Sensitivity: Some D31/D37 series radiators specify serial number breaks (S/N 60001-UP); confirm before ordering
  • Generation Coverage: Parts span multiple production generations from Series 6 through current EX/PX/WX variants

Why Choose Broken Tractor

  • ✅ Broad Komatsu dozer cooling coverage across all series
  • ✅ Fast shipping from Baton Rouge, LA and Kimbolton, OH
  • ✅ Expert staff who know Komatsu dozer fitment details

Frequently Asked Questions

What radiator fits a Komatsu D31EX-22 or D37PX-22 dozer?

Broken Tractor offers radiator 11Y-03-34211 for the Komatsu D31EX-22, D31PX-22, D37EX-22 and D37PX-22, listed for S/N 60001-UP. Because fitment on these models depends on serial number, check your machine's serial plate before ordering. If your serial number falls outside that range, call (800) 909-7060 and the parts team can help confirm the correct radiator.

Which water pump fits a Komatsu D37 or D39 dozer?

Water pump 6275-61-1200 fits the Komatsu D37EX-23, D37EX-24, D37PX-23, D37PX-24, D39EX-23, D39EX-24, D39PX-23 and D39PX-24, plus the EXI and PXI versions of those models. It is listed for QSB3.3 and SAA4D95LE engine applications. Matching the part number on your existing pump is the easiest way to confirm fitment.

What radiator fits a Komatsu D65PX-12?

We carry two radiators listed for the Komatsu D65PX-12, part 14X-03-11212 and part DF1698298R. Radiator 14X-03-11212 also fits the D65E-12, D65EX-12, D65P-12, D85ESS-2 and D85ESS-2A. Match the part number on your current radiator to make sure you order the right one.

What oil cooler fits a Komatsu D31PX-21 or D31PX-21A?

Oil cooler 11Y-03-12312 fits the Komatsu D31PX-21, D31EX-21, D37EX-21 and D37PX-21, while the D31PX-21A uses oil cooler 11Y0311314. Broken Tractor also offers charge air cooler 6737-61-4100 for the D31PX-21A and D31EX-21. Since the D31PX-21 and D31PX-21A take different oil coolers, confirm your exact model before ordering.

Is the radiator the same for a Komatsu D155AX-6 and D155AX-7?

No, the Komatsu D155AX-6 and D155AX-7 use different radiators. Radiator 17A-03-41113 fits the D155AX-6, and radiator 17A-03-51112 fits the D155AX-7 and D155AX-8. Check the model designation on your dozer and match the part number to get the correct fit.

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Product: Category: Komatsu Dozer Cooling Brand: Head Title: Komatsu Dozer Cooling Parts | Broken Tractor