New 8L2779 Seal O Ring Replacement suitable for Caterpillar Equipment

  • New Seal O Ring Replacement suitable for Caterpillar Equipment
  • Made to USA Specification

Buy with Confidence: All parts are covered by our warranty

$0.44
In Stock • Ships Today • Order By 3pm ET
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SKU
8L2779CTP
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Description for 8L2779 Seal O Ring

This aftermarket Caterpillar 8L2779 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 8L2779 Seal O Ring

Replacement Part Number(s): 8L-2779
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: 0.51 x 0.51 x 0.08 (inches)
Condition: New

Exact Fit Guarantee for 8L2779 Seal O Ring

Looking for a reliable replacement Caterpillar 8L2779 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.
More Information
Dimensions 0.51x0.51x0.08
Customer Reviews
  1. 100%
    Great affordable option for aftermarket parts
    Found Propel Parts while looking for parts to repair a D6C dozer that has been sitting for 20 years. Great parts, great prices, fast shipping and excellent customer service.
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    They were great to deal with
  3. 100%
    Rapid response! Excellent service!
  4. 100%
    Great service affordable parts
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Frequently Asked Questions

Product

What is the Caterpillar 8L2779 / 6L9882 seal O-ring used for?​

The Caterpillar 8L2779 / 6L9882 seal O-ring is a high-quality aftermarket sealing component designed to help prevent leaks in heavy equipment hydraulic, fluid, and engine systems. It is manufactured to meet or exceed OEM specifications for dependable sealing performance.

What are the benefits of using the 8L2779 / 6L9882 seal O-ring?​

A2.

  • Helps prevent fluid and pressure leaks
  • Designed for reliable sealing performance in demanding conditions
  • Built from durable materials for extended service life
  • Supports proper system efficiency and component protection
  • Manufactured to meet or exceed OEM specifications

Is the 8L2779 / 6L9882 O-ring compatible with different Caterpillar equipment models?​

Yes, this seal O-ring may fit multiple Caterpillar machines and assemblies depending on the application. Check your manual or reach out to Propel Parts for help verifying fitment.

What can happen if an O-ring becomes worn or damaged?​

A damaged O-ring can lead to fluid leaks, contamination, pressure loss, and reduced system efficiency, which may contribute to premature component wear.

Does this O-ring meet OEM performance requirements?​

Yes, this aftermarket replacement is designed to meet or exceed OEM specifications for fit, sealing capability, and durability.

Are related sealing components available from Propel Parts?​

Yes. Propel Parts carries a variety of seals and sealing components for Caterpillar equipment. You can also check the Caterpillar Equipment Seal Link 7K9208 / 5P0071 for another related sealing solution.

Why is replacing worn seals important in heavy equipment maintenance?​

Replacing worn seals helps maintain proper pressure, prevents leaks, protects nearby components, and supports reliable equipment operation with reduced downtime.

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