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New 6V3908 Seal O Ring Replacement suitable for Caterpillar Equipment
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Description for 6V3908 Seal O Ring
â–¶Specification for 6V3908 Seal O Ring
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Customer Reviews
Good service, quick response.
My part was damaged in shipping and everyone was very helpful on get it resolved and sent me another free of charge.
Helpful with making sure parts fit my machine
100% recommend it is a good parts by par for five years and everything is good
Having issue running my credit card, Steven was more than helpful to send me a payment link to complete my transaction!
Received 15 items within 5 days from placing order !
Great. !
They were great to deal with
Amazing service, emails answered very quickly with simple straight forward answers. Haven’t received the parts yet but ordering them was quick and easy.
I own old cat bulldozers D8k,D8H,D8N that required frequent repairs and servicing. it was erratic and practically cumbersome to keep them running without constant supply of reliable
and affordable spares in Uganda a third world country however,since I started dealing with propel parts US,my bulldozers have earned reliability and efficiency in providing high quality services to clients and making me a great dependable construction company in earth moving.
My shipments are always handled expeditiously and delivered in record time to Uganda this is awesome from Propelparts.
My business is booming by the clock for finding the best partner in Propelparts.
Excelente atencion y refacciones de calidad
Product Questions
Frequently Asked Questions
What is the Caterpillar O-Ring 6V3908 and where is it used?
The 6V3908 is a Caterpillar O-ring seal used in hydraulic fittings, engine ports, and fluid line connections on various CAT machines. It provides a reliable pressure-tight seal to prevent leaks in both static and dynamic sealing applications. It is a commonly needed maintenance part during hydraulic system repairs and engine overhauls.
How often should O-rings be replaced on Caterpillar equipment?
O-rings do not have a fixed replacement interval but should be replaced any time a joint or fitting is opened during service. Additionally, inspect accessible O-rings during scheduled maintenance for signs of cracking, hardening, or weeping. In hot climates or harsh chemical environments, accelerated degradation is common.
Is the 6V3908 a high-quality aftermarket seal?
Yes. This O-ring meets or exceeds OEM specifications for dimensional accuracy, material hardness, and chemical resistance. It is manufactured to perform reliably in Caterpillar equipment's specific pressure and temperature ranges.
What CAT models use the 6V3908 O-Ring?
This O-ring fits a variety of Caterpillar machines depending on the joint or fitting it is used in. For exact model compatibility, cross-reference your machine's parts manual or reach out to Propel Parts ??? our team will help you confirm the right seal for your application.
What is the correct way to install an O-ring without damaging it?
Clean the O-ring groove thoroughly, inspect it for burrs or damage, lightly coat the new O-ring with the appropriate lubricant, and install it without twisting or stretching. Use fingers or a non-sharp tool to seat it properly. Never use screwdrivers or metal tools that could nick the sealing surface.
Can a damaged O-ring cause major equipment damage?
Yes. A failed O-ring in a hydraulic circuit can cause rapid fluid loss, leading to system pressure loss, inability to lift or control attachments, or overheating of hydraulic components. In an engine oil circuit, a failed O-ring can cause dangerous oil pressure loss. Address oil leaks promptly to avoid compounding damage.
Where can I find a full range of seals and gaskets for Caterpillar equipment?
For a comprehensive selection of sealing solutions, visit the seals and gaskets for heavy equipment category at Propel Parts, where you'll find O-rings, oil seals, metal face seals, overhaul kits, and more for CAT machines.
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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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