4G4972 Seal O Ring for CAT Equipment

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

Buy with Confidence: All parts are covered by our warranty

$1.32

4.7

(Site rating)
In Stock | Ships Out Today | Order By 3pm ET
SKU
4G4972CTP
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Description for 4G4972 Seal O Ring

This aftermarket Caterpillar 4G4972 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 4G4972 Seal O Ring

Replacement Part Number(s): 4G-4972
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: 0.02 LBS | 0.01 KG
Dimensions: 0.71 x 0.71 x 0.24 (inches)
Condition: New

Exact Fit Guarantee for 4G4972 Seal O Ring

Looking for a reliable replacement Caterpillar 4G4972 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 0.71x0.71x0.24
Customer Reviews
  1. 100%
    I put 2 of the same orders in due to a web page error and shortly after I was contacted by Deb from customer service asking if I meant to place both orders. She was very helpful, the email was very well written and it genuinely made me feel better about the whole experience. She resolved the issue quickly and with there not being much of customer service these days I was very happy so see that is not the case everywhere!!!
  2. 100%
    Very helpful. Every question or request I had was answered quickly. I didn't have a parts book for my excavator but that was no problem for them. If you need parts for your Cat, give them a shot.
  3. 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.
  4. 100%
    Great customer service!
  5. 100%
    Propel parts is a good Cat vendor that provides a top notch service to customers from ordering to delivery. Their after sales service is really impressive.
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Frequently Asked Questions

Product

What is the purpose of the 4G4972 O‑ring seal?

The 4G4972 O‑ring seal is a circular sealing component used to create a tight, leak‑resistant barrier between mating surfaces in hydraulic, fuel, or fluid systems. It helps prevent fluid or gas from escaping while keeping contaminants out of critical areas.

How do I install the 4G4972 O‑ring seal?

Here’s a general guide for proper installation:

  1. Turn off the machine and relieve any system pressure before beginning work.
  2. Remove the old O‑ring and thoroughly clean the groove or sealing surface to remove debris and residue.
  3. Lightly coat the new 4G4972 O‑ring with a compatible lubricant to help ease installation.
  4. Place the O‑ring into the groove, ensuring it sits evenly without twists.
  5. Reassemble the mating parts, making sure the O‑ring remains in place and properly sealed.

Which machines or systems use the 4G4972 O‑ring seal?

The 4G4972 O‑ring seal is used in a variety of hydraulic, fuel, and fluid systems on heavy equipment where this specific part number is required. Compatibility depends on your machine’s design and application, so verify fitment using your service documentation before ordering. If you are unsure don’t hesitate to reach out to Propel Parts for help verifying fitment.

Does the 4G4972 O‑ring seal meet performance expectations?

Yes, the 4G4972 O‑ring seal is engineered to meet or exceed OEM specifications for dimensional accuracy and sealing effectiveness. When replacing seals, choose genuine or high‑quality aftermarket parts that meet or exceed OEM expectations to help ensure dependable sealing performance and long service life.

How often should an O‑ring seal like the 4G4972 be inspected or replaced?

O‑ring seals should be checked during routine maintenance or whenever the system is disassembled. Inspect for signs of wear, cracking, hardening, or deformation. Replace the O‑ring if any damage is found to prevent leaks and maintain system pressure integrity.

What are common signs that the 4G4972 O‑ring seal needs replacement?

Typical indicators include:

  1. Visible fluid leaks around the seal area
  2. Hardening, cracking, or flattening of the O‑ring
  3. Drop in system pressure
  4. Unusual noises due to fluid escape

Why is using a quality O‑ring seal important for equipment performance?

A quality O‑ring seal helps maintain proper fluid containment and pressure by preventing leaks and contamination. Using genuine or high‑quality aftermarket parts that meet or exceed OEM expectations supports reliable sealing performance, reduces maintenance issues, and contributes to long‑term equipment durability.

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.