New 8H9155 Seal, Oil Replacement suitable for Caterpillar Equipment

  • New Seal, Oil Replacement suitable for Caterpillar Equipment
  • Made to USA Specification

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$4.64
In Stock • Ships Today • Order By 3pm ET
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SKU
8H9155CTP
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Description for 8H9155 Seal Ring

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This aftermarket Caterpillar 8H9155 Seal 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 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 8H9155 Seal Ring

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Replacement Part Number(s): 8H-9155
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: 0.29 LBS | 0.13 KG
Dimensions: 5.28 x 5.28 x 0.39 (inches)
Condition: New

Exact Fit Guarantee for 8H9155 Seal Ring

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Looking for a reliable replacement Caterpillar 8H9155 Seal 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 5.28x5.28x0.39
Customer Reviews
  1. 100%
    Great prices prompt courteous customer service and fast shipping.
  2. 100%
    A Delay Handled the Right Way
    Honestly, if I were in Miami like my shipment was, I wouldn?t have been in a hurry to ship out either. I was frustrated at first ? delays cost me time on the job ? but Propel Parts stepped up.

    Deb, Daniel and the team owned the mistake, kept the communication clear, and graciously refunded my shipping costs without making it a hassle. That kind of accountability is rare these days, and I genuinely appreciated how they handled it.

    Things don?t always go perfectly, but these folks proved they?re more interested in doing right by their customers than just pushing parts out the door. Solid company, solid people.

    ? Jimmy Spong
    Hartco Mobile Welding

    P.S. Incredible quality on the pin as well. I had to do some custom modifying, and let?s just say the case hardening was ? well ? hard. Great Stuff! Thank you.
  3. 100%
    The best supplier ever we mainly deal with most rare needed parts .. i highly recommend .. they are very very honest
  4. 100%
    Satisfied Customer.
    I made my first purchase from Propel Parts last week. I was very happy with the response time and the delivery was fast, fast, fast! Also, the quality of the product is superb and at a great low price.
    Keep up the great work!
  5. 100%
    Having issue running my credit card, Steven was more than helpful to send me a payment link to complete my transaction!
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Frequently Asked Questions

Product

What is the 8H9155 seal used for?

The 8H9155 seal keeps fluids contained and contaminants out where two surfaces meet or a shaft rotates. A sound seal maintains pressure, prevents leaks, and protects the components it isolates.

How do I install the 8H9155 seal?

Fitting the 8H9155 correctly comes down to clean surfaces and following the manual’s sequence. Work through these steps:

  1. Shut down and depressurize the system, then let it cool if needed
  2. Remove the old seal and clean the bore and shaft surfaces
  3. Inspect the sealing surface for scoring, pitting, or wear
  4. Lightly lubricate the 8H9155 as directed and fit it square to the bore
  5. Seat it to the correct depth without distorting the lip, then check for leaks

Which Caterpillar machines is the 8H9155 compatible with?

The 8H9155 seal is used across many Caterpillar applications, but the correct fit depends on your exact model and assembly. Always cross-check fitment using your service manual or part reference guide before ordering. If you are unsure don’t hesitate to reach out to Propel Parts for help verifying fitment.

Does the 8H9155 seal meet performance standards?

Yes. The 8H9155 is built to meet OEM specifications for fit, strength, and service life. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM specifications to keep the assembly protected.

How often should the 8H9155 be replaced?

Service life for the 8H9155 depends on operating conditions and load. Replace it on inspection findings or at the interval your manual specifies rather than waiting for a failure. This part is commonly replaced alongside the 8M5249 Seal O-Ring, so it is worth checking both while the assembly is open.

What are the signs of a worn or failing 8H9155 seal?

When the 8H9155 reaches the end of its service life, the symptoms tend to show up first as performance or wear issues. Look for:

  • Visible fluid leaks or seepage at the joint
  • Loss of system pressure
  • Contamination found inside the assembly
  • A hardened, cracked, or torn sealing surface

Why is the 8H9155 seal important, and what related part is commonly replaced with it?

Replacing the 8H9155 when needed keeps the system within its designed clearances and loads, which extends the life of the surrounding parts and supports dependable performance. The 4N0556 Gasket Ctp is commonly serviced together with this part, so it is worth replacing both while access is available.

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.

Exact Fit Guarantee®

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