New 4Y4905 Washer Replacement suitable for Caterpillar Equipment
- New Washer Replacement suitable for Caterpillar Equipment
- Made to USA Specification
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Description for 4Y4905 Washer
â–¶Specification for 4Y4905 Washer
â–¶Exact Fit Guarantee for 4Y4905 Washer
â–¶| Dimensions | 7.48x7.48x0.39 |
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They are great !
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Great service affordable parts
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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! -
Good Customer Service. Fast Shipping. A+++
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Propel parts is a good Cat vendor that provides a top notch service to customers from ordering to delivery. Their after sales service is really impressive.
Frequently Asked Questions
What is the Caterpillar 4Y4905 washer used for?
The 4Y4905 washer is designed to support secure fastening in Caterpillar equipment assemblies by helping distribute pressure evenly and reducing stress on connected components.
What are the benefits of using a high-quality washer?
- Helps maintain stable fastening performance
- Reduces wear caused by vibration and movement
- Supports longer service life for connected hardware
What are common signs that a washer needs replacement?
Common signs include corrosion, cracking, flattening, distortion, or visible wear affecting load distribution.
Why are washers important in heavy equipment assemblies?
Washers help maintain proper clamping force, reduce surface damage, and improve fastening reliability under demanding conditions.
Is the 4Y4905 washer compatible with multiple Caterpillar machines?
Yes, this washer may fit various Caterpillar equipment applications depending on configuration. Check your manual or reach out to Propel Parts for help verifying fitment.
Are aftermarket washers dependable?
Yes. High-quality aftermarket washers that meet or exceed OEM specifications provide reliable performance and durability in heavy equipment applications.
Are related fastening parts commonly used with this washer?
Yes, components such as the Caterpillar 1D4588 cap screw are commonly used alongside washers to improve fastening stability.

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.
Exact Fit Guarantee®
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