New 5D5957 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

$2.31

4.7

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In Stock | Ships Out Today | Order By 3pm ET
SKU
5D5957CTP
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Description for 5D5957 Seal O Ring

This aftermarket Caterpillar 5D5957 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 5D5957 Seal O Ring

Replacement Part Number(s): 5D-5957
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: 4.37 x 4.37 x 0.14 (inches)
Condition: New

Exact Fit Guarantee for 5D5957 Seal O Ring

Looking for a reliable replacement Caterpillar 5D5957 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 4.37x4.37x0.14
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Frequently Asked Questions

Product

What is the Caterpillar O-Ring 5D5957 used for?

The 5D5957 is a sealing O-ring used in Caterpillar equipment to prevent fluid leakage in hydraulic systems, engine oil passages, and fuel system connections. It provides a pressure-tight seal at ports, fittings, and joints where fluid containment is critical for safe and efficient operation.

Which Caterpillar models use the 5D5957 O-Ring?

This O-ring is compatible with multiple Caterpillar machines and engine platforms. For confirmed model compatibility, cross-reference the part number in your equipment's parts manual or reach out to Propel Parts for help verifying fitment.

Is the 5D5957 O-Ring a high-quality aftermarket replacement?

Yes. The 5D5957 from Propel Parts is a premium aftermarket O-ring that meets or exceeds OEM specifications for material hardness, chemical resistance, and dimensional accuracy. It delivers reliable sealing performance in the intended Caterpillar application.

What is the operating temperature range for this O-ring?

The temperature range depends on the specific elastomer material of the O-ring. Caterpillar hydraulic and engine O-rings are typically rated for the full operating temperature range of the systems they seal. For precise specifications, refer to the product data or your service manual.

What should I do if the O-ring groove is damaged?

If the O-ring groove shows burrs, scratches, or corrosion, address this before installing a new O-ring. Light scratches can sometimes be polished smooth; deeper damage may require machining the groove or replacing the component. A damaged groove will cause the new O-ring to fail prematurely regardless of its quality.

Can I buy multiple O-rings at once for maintenance stock?

Yes. For maintenance-minded operators and fleet managers, stocking a range of common O-ring sizes is a smart way to minimize downtime. Browse the full catalog of O-ring seals for heavy equipment at Propel Parts to find the right O-rings in bulk-friendly quantities for your maintenance program.

What is the difference between static and dynamic O-ring applications?

A static O-ring seals a joint where there is no relative movement between the mating parts ??? such as a pipe fitting or cap. A dynamic O-ring seals around a moving element, such as a reciprocating hydraulic cylinder rod. Dynamic applications require slightly different groove dimensions and harder durometer materials to handle wear from movement.

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.