Water Pump 6144-61-1400 for Komatsu D20 / D21 Dozers
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
- Komatsu D20P-5, D20Q-5, D20S-5, D21A-5, D21S-5 as supplier-listed.
Compare mounting flange, pulley hub and 3D94 engine variant; confirm which gasket and fittings are included.
Product Overview
Coolant around the pump weep hole, grinding bearing noise or wobble at the drive can signal replacement time. Check the fan belt and radiator at the same time; a leaking pump can quickly turn a routine job into an overheating shutdown.
Key Features & Performance
- Coolant around the pump weep hole, grinding bearing noise or wobble at the drive can signal replacement time.
- Compare mounting flange, pulley hub and 3D94 engine variant; confirm which gasket and fittings are included.
OE / Reference Numbers
- 6144-61-1400
Common Reasons for Replacement
Check the fan belt and radiator at the same time; a leaking pump can quickly turn a routine job into an overheating shutdown.
Frequently Asked Questions
Is this an OEM part? This listing is for a replacement part, not a genuine manufacturer-branded item unless expressly stated otherwise.
How do I check fitment? Compare mounting flange, pulley hub and 3D94 engine variant; confirm which gasket and fittings are included.
Part Summary
keywords: Water Pump 6144-61-1400 for Komatsu D20 / D21 Dozers, 6144-61-1400, Komatsu D20P-5, D20Q-5, D20S-5, D21A-5, D21S-5 as supplier-listed.
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.