New 9K9731 Spacer Replacement suitable for Caterpillar Equipment
- New Spacer Replacement suitable for Caterpillar Equipment
- Made to USA Specification
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Description for 9K9731 Black Iron Spacer
▶Specification for 9K9731 Black Iron Spacer
▶Exact Fit Guarantee for 9K9731 Black Iron Spacer
▶| Dimensions | 3.50x6.00x0.08 |
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The Double Order Catastrophe
My co-worker placed an order and wasn't sure it went through online. I later placed the same order thinking the previous order didn't go through. To my surprise both orders went through, and I needed to cancel one of the orders. I called and spoke with someone who instructed me someone would contact me about the situation. I was contacted by Misty and she said she would do her best to cancel one of the orders but not sure if she could because they were next day orders. A small tome later I received an email saying she was able to cancel one of the orders. Thank you to Misty and the entire Propel Parts Team. Greatly appreciated!! -
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Great customer service.
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BEST for Heavy Equipment Parts.
Awesome quality products! Better customer service! Steven is always a pleasure to work with and very prompt in assisting me - thank you! -
I’ve been ordering parts from propel for about 3 years & counting. I live in Hawaii where we have a hard time getting parts especially for decent prices with fast shipping. I've been 100% satisfied with the company and the customer service and will continue to use them. I recommend propel to everyone here in Hawaii and we are all happy to have you guys. Thank you!!!
Frequently Asked Questions
What is the 9K9731 component used for?
The 9K9731 is a component used on Caterpillar equipment, where it performs its role within the assembly to support reliable operation. Keeping it in good condition helps the surrounding parts work as intended.
How do I install the 9K9731 component?
Fitting the 9K9731 correctly comes down to clean surfaces and following the manual’s sequence. Work through these steps:
- Shut the machine down and isolate power before working on the assembly
- Clean the mating surfaces and inspect them for wear or damage
- Remove the old part and check the area for debris
- Fit the new 9K9731 in the correct orientation per your service manual
- Reassemble to specification and confirm correct operation before returning to service
Which Caterpillar machines is the 9K9731 compatible with?
The 9K9731 is matched to particular Caterpillar equipment, so always verify the application against your parts reference before purchasing. If you are unsure don’t hesitate to reach out to Propel Parts for help verifying fitment.
Does the 9K9731 component meet performance standards?
Yes. Propel Parts supplies the 9K9731 as a premium aftermarket part made to meet OEM specifications. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM specifications so you can fit it with confidence.
How often should the 9K9731 be replaced?
Replace the 9K9731 whenever the assembly it serves is overhauled, or any time it shows wear, damage, or corrosion. Following the intervals in your service manual is the best guide. This part is commonly replaced alongside the 7H3596 Bolt Track, so it is worth checking both while the assembly is open.
What are the signs of a worn or failing 9K9731 component?
When the 9K9731 reaches the end of its service life, the symptoms tend to show up first as performance or wear issues. Look for:
- Visible wear, cracking, or corrosion on inspection
- Reduced performance or reliability in the assembly
- Unusual noise, movement, or leaks near the part
- Premature wear on the components around it
Why is the 9K9731 component important, and what related part is commonly replaced with it?
Replacing the 9K9731 when needed keeps the system within its designed clearances and loads, which extends the life of the surrounding parts and supports dependable performance. The 9S5747 Seal is commonly serviced together with this part, so it is worth replacing both while access is available.

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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