8A31-54-1110 Komatsu Cushion Damper
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Description for 8A31-54-1110 Mount-rubber
▶Specification for 8A31-54-1110 Mount-rubber
▶| Models | D31EX, D31PX, D37EX, D37PX, D39EX, D39PX, D51EX/PX, D61EX, D61EXI, D61PX, D61PXI, D65EX, D65PX, D65WX, D85EX, D85PX |
|---|---|
| Dimensions | 9.06x9.06x9.06 |
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I didnt order enough parts i called and they work with me to update my order so i didnt have to pay a double shipping fee saving me some money -
I would give 5 stars but my first time ordering from here and using aftermarket parts. The price is reasonable comparing to original Cat parts and the customer support is great and hoping to do more business with them
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Great customer service
Anthony was very professional and on top of what needed to be done to get my order verified and moving forward. -
Stevens the man. Placed my order and sent him the order # and had me in the loop within an hour.
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Great site and price
Frequently Asked Questions
What is the function of the 8A31-54-1110 cushion damper?
The 8A31-54-1110 cushion damper is a shock-absorbing component used in Komatsu heavy equipment to reduce vibration and impact loads transmitted through the machine’s structure or cab mounts. It helps protect components and improve machine stability, operator comfort, and overall equipment longevity.
How do I install the 8A31-54-1110 cushion damper?
Here’s a general guide for proper installation:
- Park the machine on a level surface and turn off the engine.
- Support the machine or cab to relieve load on the existing cushion damper.
- Remove any fasteners or mounts holding the old damper in place.
- Carefully extract the worn damper and clean the mounting points.
- Position the new 8A31-54-1110 cushion damper and secure it with the correct hardware, tightening to the torque values specified in the service manual.
- Lower the supported assembly and verify stability and fit.
Which machines use the 8A31-54-1110 cushion damper?
The 8A31-54-1110 cushion damper fits a wide range of Komatsu dozers and construction machines, including models such as D31EX, D31PX, D37EX/PX, D39EX/PX, D51EX/PX, D61EX/EXI/PX/PXI, D65EX/PX/WX, D85EX/PX and more where this part number is specified. If you are unsure don’t hesitate to reach out to Propel Parts for help verifying fitment.
Does the 8A31-54-1110 cushion damper meet performance expectations?
Yes, the 8A31-54-1110 cushion damper is manufactured to meet or exceed OEM quality and performance standards for durability, shock absorption, and fit. Aftermarket versions are quality-checked to ensure they match the fit and function of the original Komatsu part.
How often should a cushion damper like the 8A31-54-1110 be inspected or replaced?
Cushion dampers should be checked during routine maintenance or when related assemblies are serviced. Inspect for signs of wear, cracking, deformation, or loss of damping ability. Replace the damper if any of these issues are found to maintain proper vibration control and operator comfort.
What are common signs that the 8A31-54-1110 cushion damper needs replacement?
Typical indicators include:
- Excessive vibration or shaking during operation
- Unusual noise from the mount or damper area
- Visible damage such as cracks or deformed rubber/metal components
- Loose or worn mounting hardware
Why is using a quality cushion damper like the 8A31-54-1110 important for equipment performance?
A quality cushion damper helps absorb shock and vibration, which improves operator comfort, protects structural components, and reduces wear on sensitive parts. Using parts that meet or exceed OEM expectations enhances reliability, reduces maintenance issues, and increases machine uptime.
This 8A31-54-1110 Mount-rubber is compatible with the following models:
D31EX, D31PX, D37EX, D37PX, D39EX, D39PX, D51EX/PX, D61EX, D61EXI, D61PX, D61PXI, D65EX, D65PX, D65WX, D85EX, D85PX & more...

We know equipment downtime costs money, so fast and reliable shipping is a priority at Propel Parts. Orders placed on weekdays before 3:00 PM ET typically ship the same day, with expedited delivery options available for many locations when time is critical.
We ship across the U.S., Canada, and over 130 countries worldwide, helping customers keep machines running wherever they operate. Available shipping methods and delivery estimates are shown at checkout so you can select the option that best fits your timeline.
Tracking information is emailed within 24–48 hours after your order is processed, giving you full visibility from dispatch to delivery and peace of mind that your parts are on the way.

Our refund policy is simple. We offer a 30-day, no-hassle return policy, and we make every effort to provide the best service and highest-quality parts possible. If you’re not fully satisfied with your purchase, you may return it within 30 days for a refund. Full details are available on our Returns Policy page.

Buy with confidence. All parts from Propel Parts are covered against material or manufacturer defects for 12 months from the original invoice date. We stand behind every part we sell, so you can count on reliable performance and dependable support. Full details are available on our Warranty Policy page.
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