Details
Description for 9R0158 Washer
â–¶Specification for 9R0158 Washer
â–¶Exact Fit Guarantee for 9R0158 Washer
â–¶Reviews
Customer Reviews
Very helpful. Every question or request I had was answered quickly. I didn't have a parts book for my excavator but that was no problem for them. If you need parts for your Cat, give them a shot.
Been buying from them for years and have almost never had an issue. The few times I had a question or something to handle, they have shown amazing customer service. Great product and a great company.
Very prompt services !
The gentleman was very helpful
La mejor experiencia y calidad
Fast response and very attentive! Thanks Deb.
Had a great experience with ordering correct engine gaskets for our 3208 caterpillar engine
They are great !
Our CSR for Dymax Inc., Deb, has been extremely helpful and consistently provides quick, accurate information regarding parts and inventory. When we encounter difficulties finalizing transactions through the internal website, she is able to promptly generate quotes and provide an external, secure method for payment. Her responsiveness and willingness to assist play a key role in supporting our team’s success.
Great service at an affordable price to get my machine back going.
Product Questions
Frequently Asked Questions
What is the Caterpillar 9R0158 washer used for?
The 9R0158 is a precision washer used to distribute clamping load, prevent bolt head embedment, provide a smooth bearing surface, and protect softer materials from fastener damage on Caterpillar equipment. Washers like this are critical to maintaining correct joint preload in assemblies throughout the machine.
What type of washer is the 9R0158 ??? flat, hardened, or sealing?
The exact washer type is detailed in the product listing. Whether flat, hardened, or sealing, always use the specified type for the application ??? substituting a different washer style can compromise joint integrity, especially in high-load or vibration-prone assemblies.
Should I replace washers when reusing bolts?
Yes ??? whenever a bolt joint is disassembled, particularly in critical structural or engine assemblies, replacing the washer is good practice. Washers can embed, deform, or corrode over time and may not provide the same load distribution as a new component.
What models is the 9R0158 washer compatible with?
This washer is used across a range of Caterpillar equipment. Always confirm the part number against your machine's documentation. If you are unsure, reach out to Propel Parts for help verifying fitment.
Are replacement washers available in multi-packs for fleet use?
Yes ??? Propel Parts offers hardware components in quantities suitable for both single-machine repairs and fleet maintenance programs. Browse our CAT hardware parts catalog to find washers, bolts, nuts, and other fastening components that support your maintenance schedule.
What material is this washer made from?
Caterpillar equipment washers are manufactured from steel grades selected for hardness, corrosion resistance, and load capacity appropriate for the application. The 9R0158 meets OEM material specifications.
Does Propel Parts offer a warranty on this washer?
All hardware sold by Propel Parts carries a 1-year warranty against material and manufacturing defects. Same-day shipping is available on weekdays for orders placed before 3:00 PM ET.
Shipping | Returns
Shipping
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.
Easy Returns
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.
Warranty
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.
Exact Fit Guarantee
Exact Fit Guarantee®
The right part — or we'll make it right.
Order Normally
Know your part number?
Simply place your order.
Not Sure?
Place your order, then send us your serial number before it ships.
We'll verify fit.We Make It Right
Wrong part? We'll make it right.Fast. At our expense.

