New 4L8337 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

$1.94

4.7

(Site rating)
In Stock | Ships Out Today | Order By 3pm ET
SKU
4L8337CTP
Pay with
visa
mastercard
amex
discover
For Easy Checkout | Select Your Card

Description for 4L8337 Seal O Ring

This aftermarket Caterpillar 4L8337 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 4L8337 Seal O Ring

Replacement Part Number(s): 4L-8337
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: 0.03 LBS | 0.01 KG
Dimensions: 3.94 x 3.94 x 0.20 (inches)
Condition: New

Exact Fit Guarantee for 4L8337 Seal O Ring

Looking for a reliable replacement Caterpillar 4L8337 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 3.94x3.94x0.20
Customer Reviews
  1. 100%
    Excellent Customer service
  2. 100%
    Rapid response! Excellent service!
  3. 100%
    Helpful with making sure parts fit my machine
  4. 100%
    Quick and efficient.
    Great products and a great team to deal with. We had a small issue with a missing part and the Customer Services Team dealt with it quickly and efficiently and in a way which left me, the customer, feeling entirely satisfied. Would highly recommend.
  5. 100%
    Excellent customer service and parts.
    You guys have always gave excellent customer service!!! Very prompt responsiveness. Warranty services are superb. I have been using them for quite awhile now on equipment I have. Always great prices for parts! Keep up the great work guy's
Write Your Own Review
You're reviewing:New 4L8337 Seal O Ring Replacement suitable for Caterpillar Equipment
Your Rating

Frequently Asked Questions

Blog

What is the 4L8337 seal O-ring used for?

The 4L8337 seal O-ring is designed to create a reliable seal between connected components in Caterpillar equipment systems. It helps prevent leaks of fluids such as engine oil, coolant, or hydraulic fluid while maintaining proper pressure within the system. A properly functioning 4L8337 O-ring supports smooth equipment operation and helps protect internal components from contamination.

Which Caterpillar equipment commonly uses the 4L8337 O-ring?

To ensure the 4L8337 is the correct fit for your machine, cross-reference the part number with your equipment manual or parts catalog. If you have any doubts, the Propel Parts team is available to point you in the right direction.

What are the signs that a seal O-ring like 4L8337 needs replacement?

A worn or damaged 4L8337 seal O-ring may lead to several operational issues, including:

  1. Oil, coolant, or hydraulic fluid leaks around sealed components
  2. Reduced system pressure or performance
  3. Visible cracking, flattening, or wear on the O-ring
  4. Dirt or contaminants entering sealed systems

Replacing damaged seals early helps prevent additional component wear and reduces the risk of costly equipment downtime.

Does the 4L8337 seal O-ring meet performance standards?

That\'s correct. The 4L8337 replacement is produced to meet OEM requirements and deliver the performance expected in heavy equipment applications. For any fitment questions, contact Propel Parts directly.

How do you install the 4L8337 seal O-ring?

Proper installation is important to ensure effective sealing. General installation steps include:

  1. Turn off the equipment and allow all systems to cool.
  2. Carefully disassemble the component where the O-ring is located.
  3. Remove the worn or damaged O-ring from its groove.
  4. Clean the sealing groove and surrounding surfaces thoroughly.
  5. Install the new 4L8337 O-ring in the correct position.
  6. Reassemble the components and tighten them according to manufacturer

> specifications. Always follow your equipment's service manual for detailed installation procedures.

How often should O-rings like the 4L8337 be replaced?

Seal O-rings typically do not have a fixed replacement schedule. However, they should be inspected during routine maintenance, system servicing, or whenever fluid leaks appear. In heavy-duty operating environments, replacing worn seals with a 4L8337 O-ring replacement helps maintain proper sealing and reliable equipment performance.

Can I use a premium aftermarket 4L8337 O-ring replacement?

High-quality aftermarket 4L8337 parts designed to OEM specifications are a solid option for equipment owners seeking reliable performance at a competitive price. As long as the part meets or exceeds OEM standards, it\'s a confident choice.

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.