New 8M4433 Seal O Ring Replacement suitable for Caterpillar Equipment
- New Seal O Ring Replacement suitable for Caterpillar Equipment
- Made to USA Specification
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Description for 8M4433 Seal O Ring
â–¶Specification for 8M4433 Seal O Ring
â–¶Exact Fit Guarantee for 8M4433 Seal O Ring
â–¶| Dimensions | 1.44x1.44x0.15 |
|---|
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Thomas Loiselle100%Quick and prompt support. Easy to work with. They had the parts in stock which is even better. Great pricing.
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Tim Creswell (Louisiana, USA)80%Above and Beyond
Staff took care of issue that was nit created by them. Package was lost by UPS. Propel sent me another part Next Day Air to correct it. -
Mark (Florida, USA)100%Excellent Customer service
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Veni (Massachusetts, USA)100%Great company with outstanding customer service. Always get answers to my questions and always get my order to me quickly!
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Jeet Buddhdev (India)100%Very prompt services !
Frequently Asked Questions
What is the 8M4433 O-ring seal used for?
The 8M4433 is an O-ring style seal used to prevent leaks at a joint or connection. Correct sizing and material let it hold pressure without hardening or extruding.
How do I install the 8M4433 O-ring seal?
A reliable installation of the 8M4433 starts with inspection and ends with verification. Follow this process:
- Depressurize the system and shut the machine down before service
- Remove the old O-ring and clean the groove thoroughly
- Inspect the groove and mating face for nicks or debris
- Lubricate the 8M4433 as directed and seat it evenly in the groove
- Reassemble carefully so the O-ring isn't pinched, then check for leaks
Which Caterpillar machines is the 8M4433 compatible with?
Fitment for the 8M4433 depends on your specific Caterpillar model and the assembly it serves, so confirm the application before you order. Please reach out to Propel Parts for help verifying fitment.
Does the 8M4433 O-ring seal meet performance standards?
Yes. The 8M4433 is manufactured to meet OEM specifications for tolerance and material quality. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM specifications for dependable, long-term performance.
How often should the 8M4433 be replaced?
Plan to replace the 8M4433 during a rebuild of the surrounding components, or sooner if inspection shows it is past its serviceable limit.
What are the signs of a worn or failing 8M4433 O-ring seal?
Catching a failing 8M4433 early prevents wider damage. The common warning signs include:
- Leaks or weeping at the sealed connection
- A flattened, nicked, or hardened ring on removal
- Loss of pressure in the circuit
- Swelling or extrusion from the groove
Why is the 8M4433 important, and what related parts work with it?
Keeping the 8M4433 in good condition protects the components around it and supports smooth, reliable operation. Maintaining the assembly with parts that meet OEM specifications helps you avoid unplanned downtime. Related hardware on our site includes 2W4037 Pr Pr Ps 500 Sr4 Sr4 C280 12 C280 16 C280 6 C280 8 613c And More Seal Oil and 6F9163 Gasket.

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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