New 6V5266 Seal O Ring Replacement suitable for Caterpillar Equipment

$0.71
In Stock • Ships Today • Order By 3pm ET
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Description for 6V5266 Seal O Ring

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This aftermarket Caterpillar 6V5266 Seal O Ring is built to meet U.S. OEM specifications for durability and performance. At Propel Parts, we perform strict quality checks to ensure it fits and functions like your original Caterpillar Seal O Ring.
Direct Replacement: Engineered for a precise fit in Caterpillar equipment.
OEM-Spec Quality: Manufactured to match the performance of your original part.
Tested Reliability: Strict quality checks are performed before shipping.

Specification for 6V5266 Seal O Ring

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Replacement Part Number(s): 6V-5266
Specifications: Aftermarket Part | US OEM Specs.
Shipping: Same Day (Weekdays) | Order by 3pm.
Warranty: Unlimited Mileage | 1 Year Warranty.
Core: No Core Required | No Core Charge.
Weight: 0.01 LBS | 0.00 KG
Dimensions: 1.65 x 1.65 x 0.08 (inches)
Condition: New

Exact Fit Guarantee for 6V5266 Seal O Ring

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Looking for a reliable replacement Caterpillar 6V5266 Seal O Ring ? Order with confidence through our Exact Fit Guarantee.
Verified Fit: Before we ship, we check your part against CAT SIS (Caterpillar Service Information System) to confirm it's the correct match for your machine.
Peace of Mind: If it isn't the right fit, we'll contact you with the correct Caterpillar part number before your order goes out.
Exclusive Guarantee: Enroll in our Exact Fit Guarantee at checkout to ensure you get the part you need the first time.
Reviews

Customer Reviews

★★★★★

Excellent experience.
Mike has been very helpful. I am looking forward to keep doing business with them

★★★★★

Great customer service.
Prompt , knowledgeable and friendly service.

★★★★★

Excelente atencion y refacciones de calidad

★★★★★

Great service affordable parts

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Very knowledgeable and quick to quote parts.
Very quick to respond to parts quotes. Knowledgeable and Polite, and very quick shipping. Definitely will purchase parts from these guys in the future.

★★★★★

rapid response!

★★★★★

Great customer service
Anthony was very professional and on top of what needed to be done to get my order verified and moving forward.

★★★★★

Great prices prompt courteous customer service and fast shipping.

★★★★★

I almost want to cry ;( writing this review because I dont want people to find out about them and rather keep them in my pocket but they deserve it…
This company is great with Quality Products at amazing prices! Sometimes, their website is not the most accurate but is user friendly and if you got questions they will call back and are very prompt in responding via a call or text to verify inventory before placing an order.
I really appreciate and look forward to continuing to work with you all especially Anthony — he is amazing & the best!!!

★★★★★

Quick Response. Very much appreciated.

Product Questions

Frequently Asked Questions

What is the 6V5266 O-ring seal used for?

The 6V5266 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 6V5266 O-ring seal?

Fitting the 6V5266 correctly comes down to clean surfaces and following the manual sequence. Work through these steps:

  1. Depressurize the system and shut the machine down before service
  2. Remove the old O-ring and clean the groove thoroughly
  3. Inspect the groove and mating face for nicks or debris
  4. Lubricate the 6V5266 as directed and seat it evenly in the groove
  5. Reassemble carefully so the O-ring isn't pinched, then check for leaks

Which Caterpillar machines is the 6V5266 compatible with?

Compatibility for the 6V5266 O-ring seal varies by machine and configuration, so cross-check it for your Caterpillar equipment before ordering. If you are still unsure, reach out to Propel Parts, our team will be happy to help you verify if this part fits your equipment.

Does the 6V5266 O-ring seal meet performance standards?

Yes. The 6V5266 is engineered to meet OEM specifications for material, dimensions, and durability. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM specifications so the part performs the way it was designed to.

How often should the 6V5266 be replaced?

The 6V5266 is typically renewed during scheduled service or a related repair. In demanding, high-hour operation, inspect it more often to stay ahead of wear.

What are the signs of a worn or failing 6V5266 O-ring seal?

When the 6V5266 reaches the end of its service life, the symptoms tend to show up first as performance or wear issues. Look for:

  • 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 6V5266 important, and what related parts work with it?

Replacing the 6V5266 when needed keeps the system within its designed clearances and loads, which extends the life of the surrounding parts and supports dependable performance. Related hardware on our site includes 9X4598 Seal and 2258533 Gasket Turbo.

Questions About this Part?
Have a question about fit, compatibility, shipping, warranty, or returns?
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.

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