Part number lookup
D21A-5 Replacement Parts
Cross-reference and compare 5 replacement listings for OEM / aftermarket part number D21A-5. Use this part-number page — not a generic equipment or brand hub — to review price, availability, and fitment before ordering.
5 Matching Products
KomatsuFinal Drive Pinion Shaft 103-27-21210 for Komatsu Dozer D21A-5 D21P-5 D20A-5 D21Q-5 D20S-5$296.00
IsuzuOriginal 4PCS Fuel Injection Pump 658A527143 for Isuzu Engine 3LB1 3LD1 4LB1 4LE1$1,318.99
CumminsPulley Idler 3062602 3801573 3046225 for Cummins L10 M11 Original$172.99
KomatsuTrunnion Cap Assembly 104-72-00010 for Komatsu Bulldozer D21PG-7A D21P-7A D21P-6A D21P-5A D21E-6 D21A-7 D21A-6 D21A-5 D20P-6A$189.00KomatsuTrunnion Cap Assembly 104-72-00010 for Komatsu Bulldozer D21PG-7A D21P-7A D21P-6A D21P-5A D21E-6 D21A-7 D21A-6 D21A-5 D20P-6A$200.00Part Numbers and Cross References
Applications and Fitment Summary
- Komatsu · s: Fit for Komatsu Dozer: D20A-5, D20P-5, D20P-5A, D20PL-5, D20Q-5, D20S-5, D21A-5, D21P-5, D21P-5A, D21PL-5, D21Q-5, D21S-5
- Part Number
- Isuzu Engine: 3LB1, 3LD1, 4LB1, 4LE1 Note: This original part does not offer returns or exchange service. Please confirm according to the correct part number instead of just a model.
- Cummins Engine: L10, M11 Note: This original part does not offer returns or exchange service.Please confirm according to the correct part number instead of just a model.
- Komatsu · s: Fit for Komatsu Bulldozer: D20A-5, D20A-6, D20A-7, D20A-7-M, D20AG-7, D20P-5A, D20P-6A, D20P-7A, D20PG-7A, D21A-5, D21A-6, D21A-7, D21AG-7, D21E-6, D21P-5A, D21P-6A, D21P-6B, D21P-7A, D21PG-7A See Details: D21PG-7A S/N 75001-78603 BULLDOZERS D21P-7A S/N 75001-78603 BULLDOZERS D21P-6B S/N 60001-UP (3-Point Hitchi Spec.) BULLDOZERS D21P-6A S/N 60001-UP (Power Angle Tilt Dozer) BULLDOZERS D21P-5A S/N 45007-UP (Power Angle Tilt Dozer) BULLDOZERS D21E-6 S/N 60001-UP BULLDOZERS D21AG-7 S/N 75001-78603 BULLDOZERS D21A-7 S/N 75001-78603 BULLDOZERS D21A-6 S/N 60001-UP BULLDOZERS D21A-5 S/N 45001-UP BULLDOZERS D20PG-7A S/N 75001-78603 BULLDOZERS D20P-7A S/N 75001-78603 BULLDOZERS D20P-6A S/N 60001-UP (Power Angle Tilt Dozer) BULLDOZERS D20P-5A S/N 45003-UP (Power Angle Tilt Dozer) BULLDOZERS D20AG-7 S/N 75001-78603 BULLDOZERS D20A-7-M S/N 78604-UP BULLDOZERS D20A-7 S/N 75001-78603 BULLDOZERS D20A-6 S/N 60001-UP BULLDOZERS D20A-5 S/N 45001-UP BULLDOZERS
Frequently Asked Questions
What parts replace OEM number D21A-5?
This page lists 5 replacement listings indexed under D21A-5. Compare cross references, applications, and pricing before ordering.
How do I confirm fitment for D21A-5?
Match the stamped part number first, then verify machine model, engine code, serial number, mounting points, and photos of your old part before checkout.
Can I request a quote if D21A-5 is not an exact match?
Yes. Use the fitment inquiry form with your machine plate, engine model, and photos. Support can review alternatives or cross references.