Komatsu Rubber Cushion Part Number Guide: Every Mount for Every Machine
Published 2026-03-28 • By 8A31-54-1130.com Technical Team
How to Find the Right Rubber Mount Part Number for Your Komatsu Machine
Finding the correct rubber cushion damper or engine mount for your Komatsu machine starts with identifying the exact part number specified in the Komatsu parts catalog for your model and serial number. This guide provides a quick-reference cross-reference table covering the most common Komatsu rubber mount part numbers, organized by equipment category.
Important: Komatsu frequently updates part numbers between serial number ranges. The tables below cover the most common applications, but always confirm against your machine's specific serial number before ordering. Send us your model and serial number for free verification — we will cross-reference it within 24 hours.
D-Series Crawler Dozer Cushion Dampers
| Part Number | Machine Models | Type | Link |
|---|---|---|---|
| 8A31-54-1110 | D31EX, D37EX, D39EX, D51EX, D61EX, D65EX, D85EX | Cushion Damper | Details |
| 8A31-54-1130 | D155AX-5, D155AX-6, D155A-5 | Primary Cushion Damper | Details |
| 8A31-54-1140 | D155A, D155AX Series | Secondary Cushion Damper | Details |
| 6754-11-8110 | D51EX-22/24, D51PX-22/24 | Engine Mount | Details |
| 6151-12-1100 | D65EX-15/16/17, D65PX-15/16/17 | Engine Mount | Details |
| 6261-11-8100 | D85EX-15/18, D85PX-15/18 | Engine Mount | Details |
| 195-54-78412 | D375A-5/6, D475A-5 | Cushion Damper | Details |
| 56B-50-12315 | D375A-5, D375A-6 | Engine Mount | Details |
| 56D-50-12314 | D475A-5, D475A-5E0 | Engine Mount | Details |
PC-Series Hydraulic Excavator Mounts
| Part Number | Machine Models | Type | Link |
|---|---|---|---|
| 22U-54-25441 | PC78US-8/10, PC88MR-8/10 | Engine Mount | Details |
| 20E-54-K1360 | PC160LC-8, PC170LC-10/11 | Engine Mount | Details |
| 20Y-54-39520 | PC200-7/8, PC220-7/8 | Engine Mount | Details |
| 17A-54-46120 | PC200-8 to PC350-8 | Engine Mount (Front) | Details |
| 17A-54-46130 | PC200-8 to PC350-8 | Engine Mount (Rear) | Details |
| 20Y-54-71181 | PC200-8 to PC350-8 | Cab Mount | Details |
| 20Y-54-11273 | PC200-7/8, PC210-8, PC220-8 | Hydraulic Pump Mount | Details |
| 20Y-54-51191 | PC200-8, PC210-10, PC220-8, PC240-10 | Radiator Mount | Details |
| 207-54-71341 | PC300-7/8, PC350-7/8 | Engine Mount | Details |
| 208-54-71180 | PC400-7/8, PC450-7/8 | Cab Mount | Details |
| 209-54-71182 | PC400-7/8, PC450-7/8 | Engine Mount | Details |
WA-Series Wheel Loader Engine Mounts
| Part Number | Machine Models | Type | Link |
|---|---|---|---|
| 423-54-25410 | WA380-6/7/8, WA430-6/7 | Engine Mount | Details |
| 421-54-11781 | WA470-6/7/8, WA500-6/7/8 | Engine Mount | Details |
| 714-07-18810 | WA600-6/8, WA700-3 | Engine Mount | Details |
Can't find your part number? Contact us with your machine model and serial number. We cross-reference the Komatsu parts catalog and respond within 24 hours with the correct part number and pricing.