New 2300940 Seal Replacement suitable for Caterpillar 3408, 3408C, 3408E, 3412D, 3412E, C175-

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

Buy with Confidence: All parts are covered by our warranty

$10.65

4.7

(Site rating)
In Stock | Ships Out Today | Order By 3pm ET
SKU
2300940CTP
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Description for 2300940 Seal Ring

This aftermarket Caterpillar 2300940 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 2300940 Seal Ring

Replacement Part Number(s): 230-0940
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: 0.19 LBS | 0.09 KG
Dimensions: 10.04 x 10.04 x 0.39 (inches)
Condition: New

Exact Fit Guarantee for 2300940 Seal Ring

Looking for a reliable replacement Caterpillar 2300940 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
Models 3408, 3408C, 3408E, 3412D, 3412E, C175 & more
Dimensions 10.04x10.04x0.39
Customer Reviews
  1. 100%
    GREAT CUSTOMER SERVICED
    WANTED TO THANK PROPEL PARTS FOR THEIR ATTENTION TO AN URGENT MATTER I HAD. THEY RESPONDED QUICKLY & RESOLVED IT. I ALSO WANTED TO MENYTION THAT OUR CUSTOMER'S ARE VERY HAPPY WITH THE PARTS EWE HAVE BEEN ORDERING FROM PROPEL. WE WILL DEFINITLEY CONTINUE TO DO BUSINESS.
  2. 100%
    Have been buying parts from them for years, and they have always delivered, both with parts and customer service.
  3. 100%
    Excellent service and very very good service
  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%
    Quick Respond.
    The quick respond much appreciated.
    Keep this up.
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Frequently Asked Questions

Product

What is the Caterpillar 2300940 seal used for?

A: The 2300940 is an engine seal used in Caterpillar 3408, 3408C, 3408E, 3412D, 3412E, and C175 series engines to prevent oil or coolant leaks between critical engine components. Engine seals maintain internal pressure and protect against contamination, which is vital for engine longevity.

Which Caterpillar engines is the 2300940 compatible with?

A: This seal is compatible with Caterpillar 3408, 3408C, 3408E, 3412D, 3412E, and C175 engines. Always cross-check the part number against your engine's serial number to confirm correct fitment. If you are still unsure, reach out to Propel Parts ??? our team will be happy to help you verify if this part fits your equipment.

How do I know when this engine seal needs to be replaced?

A: Look for oil or coolant seeping from the joint where the seal is located, a drop in oil or coolant levels, overheating, and blue or white smoke from the exhaust. Proactive replacement during major service intervals helps avoid unexpected failures.

Is the 2300940 a high-quality aftermarket part?

A: Yes. This is a premium high-quality aftermarket seal engineered to meet or exceed OEM specifications for the 3408 and 3412 engine families. It provides a reliable, direct-fit replacement for the original Caterpillar seal.

For the complete range of engine seals and gaskets, browse our dedicated category page.

What material is the 2300940 seal made from?

A: This seal is manufactured from high-grade elastomeric or composite material suited for the thermal and pressure demands of large Caterpillar diesel engines. The material resists oil, heat, and chemical exposure to ensure long service life.

Can this seal be installed without removing the engine?

A: Depending on the specific location of the seal within the engine, some seals can be replaced with the engine in the machine while others require engine removal. Refer to the Caterpillar service manual for the specific procedure for the 2300940 seal.

Does Propel Parts warrant this seal?

A: Yes. All products from Propel Parts include a 12-month warranty against manufacturing and material defects from the invoice date. Same-day shipping on weekday orders placed by 3pm ET.

Questions About this Part?
Have a question about fit, compatibility, shipping, warranty, or returns?

This 2300940 Seal Ring is compatible with the following models:
3408, 3408C, 3408E, 3412D, 3412E, C175 & more...

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.