Cat Dozer Water Pump parts list
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D3C III, D3G, D4C III, D4G (CFN Before 01072), D5C III, D5G, 315, 315B, 315C, 317B LN, 318B |
3046 Water Pump |
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1175033 |
$106.00
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416F, 420F, 428F, 430F, 432F, 434F, 444F, D3K2 LGP, D4K2 XL, D5K2 XL |
C4.4 Water Pump |
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3975683 |
$271.00
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D6R, D6R II, D6R III, D6R STD, D6T, D7R XR, 973C |
C9 Dozer Water Pump |
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3502536 |
$214.00
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Replacement water pumps for Caterpillar dozers, covering C9, C4.4, and 3046 engine applications across small, medium, and large crawler models including the D3C through D7R XR series.
Fits Models At A Glance
- C9 Engine: D6R, D6R II, D6R III, D6R STD, D6T, D7R XR
- C4.4 Engine: D3K2 LGP, D4K2 XL, D5K2 XL
- 3046 Engine: D3C III, D3G, D4C III, D4G, D5C III, D5G
Key Notes
- Application: Circulates coolant through the engine block and radiator to maintain operating temperature
- Engine Coverage: Matched to C9, C4.4, and 3046 diesel platforms
- Verification: Confirm engine serial and CFN prefix before ordering, especially on D4G units
- Condition: New replacement pumps built to OEM fit and flow specs
Why Choose Broken Tractor
- ✅ Engine-matched pumps for accurate dozer fitment
- ✅ Fast shipping from two US locations
- ✅ Knowledgeable staff to confirm your application
Frequently Asked Questions
What water pump fits a Cat D6R dozer?
Broken Tractor carries the Cat C9 Water Pump 3502536 for the D6R, D6R II, D6R III and D6R STD dozers. The same pump also fits the D6T and D7R XR, since those dozers share the C9 engine. Match part number 3502536 to your old pump before ordering to make sure you get the right fit.
Which Cat dozer water pump do I need?
The right water pump depends on the engine in your Cat dozer. We carry pumps for three engines: the C9 for D6R, D6T and D7R XR models, the C4.4 for D3K2 LGP, D4K2 XL and D5K2 XL models, and the 3046 for D3C III, D3G, D4C III, D4G, D5C III and D5G models. Confirm your engine serial number before ordering so the pump matches your machine.
What water pump fits a Cat D4G dozer?
The Cat 3046 Water Pump 1175033 fits the D4G dozer with a CFN serial prefix before 01072. Fitment on the D4G depends on the serial number, so check your CFN prefix before ordering. If you are unsure, call (800) 909-7060 and the parts team can confirm your application.
What water pump fits a Cat D3K2, D4K2 or D5K2 dozer?
The Cat C4.4 Water Pump 3975683 fits the D3K2 LGP, D4K2 XL and D5K2 XL dozers. These models run the C4.4 diesel engine, so this pump is matched to that engine platform. Compare the part number on your existing pump to 3975683 to confirm fitment.
What does the water pump do on a Cat dozer?
The water pump circulates coolant through the engine block and radiator to keep the engine at its operating temperature. Broken Tractor offers new replacement water pumps built to OEM fit and flow specs for Cat dozers with C9, C4.4 and 3046 engines.
