New 2H3934 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

$0.51

4.7

(Site rating)
Call +1-877-228-3765 for availability
SKU
2H3934CTP
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Description for 2H3934 Seal O Ring

This aftermarket Caterpillar 2H3934 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 2H3934 Seal O Ring

Replacement Part Number(s): 2H-3934
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: 4.13 x 4.13 x 0.16 (inches)
Condition: New

Exact Fit Guarantee for 2H3934 Seal O Ring

Looking for a reliable replacement Caterpillar 2H3934 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 4.13x4.13x0.16
Customer Reviews
  1. 100%
    Grateful I found this company!
    I’m grateful I found this company! They answer the phone every time plus the parts are packaged very well!! Even the angriest mailman couldn’t damage your parts! lol The parts showed up as planned and for being aftermarket the quality seems to be good!! The warranty is the same as CAT. Thank you Daniel!!!
  2. 100%
    Helpful with making sure parts fit my machine
  3. 100%
    The best supplier ever we mainly deal with most rare needed parts .. i highly recommend .. they are very very honest
  4. 100%
    Propel Parts provided quality parts for my Caterpillar needs at a very fair price. Shipping to my international location was very fast. took about a week for the parts to get here. Seller is also responsive with my inquiry.
    Thanks again
  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

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What is the Caterpillar 2H3934 seal O-ring used for?

The 2H3934 seal O-ring is designed to create a reliable seal between components in Caterpillar equipment. It helps prevent leaks of oil, fuel, or hydraulic fluid while also protecting internal systems from dust and contaminants. A properly functioning O-ring helps maintain correct system pressure and supports smooth equipment operation.

Which Caterpillar equipment may use the 2H3934 seal O-ring?

Since compatibility for the 2H3934 can vary by machine configuration and serial range, it\'s worth verifying the part number in your service manual before ordering. Reach out to Propel Parts if you need help confirming fitment.

What are the signs that a Caterpillar seal O-ring needs replacement?

A worn or failing 2H3934 seal O-ring can lead to sealing issues that affect system performance. Common warning signs include:

  1. Oil, fuel, or hydraulic fluid leaks near the sealed connection
  2. Loss of pressure within the system
  3. Visible cracks, flattening, or wear on the O-ring
  4. Contamination entering the sealed component

Replacing worn O-rings early helps prevent system damage and reduces the risk of costly repairs.

Does the 2H3934 seal O-ring meet performance standards?

It does. The 2H3934 is designed to meet or exceed OEM specifications, providing consistent performance in the applications it was built for. Have questions about your specific machine? Reach out to Propel Parts for guidance.

How do you install the 2H3934 seal O-ring?

Proper installation helps maintain a secure and leak-free seal. Typical installation steps include:

  1. Shut down the equipment and release system pressure
  2. Disassemble the component containing the O-ring
  3. Carefully remove the worn or damaged O-ring
  4. Clean the sealing groove and surrounding surfaces
  5. Install the new 2H3934 O-ring in the correct position
  6. Reassemble the component and check for leaks

Always follow the manufacturer's service manual for the exact installation procedure.

How often should the 2H3934 seal O-ring 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 components are disassembled. Replacing worn seals when leaks or wear appear helps maintain proper system pressure and protects critical equipment parts.

Can I use a premium aftermarket 2H3934 seal O-ring replacement?

Many equipment owners rely on premium aftermarket 2H3934 replacements as a cost-effective alternative. When built to meet or exceed OEM specs, they provide the same reliability, fitment, and performance as the original part.

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.