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New 2300940 Seal Replacement suitable for Caterpillar 3408, 3408C, 3408E, 3412D, 3412E, C175-
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Description for 2300940 Seal Ring
â–¶Specification for 2300940 Seal Ring
â–¶Exact Fit Guarantee for 2300940 Seal Ring
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Customer Reviews
Australian buyer, sales where professional and very responsive with secure parts identification.
Highly recommend.
Bedrock Exploration Pty Lt, Australia
Customer Follow-Up After Delivery:
Thank you Deb and your colleague Anthony A for your help in supplying a replacement part which arrived in good time and is running smoothly.
I shall continue to use your services and recommend you to other remote miners, as your services and delivery times are better than our home-based suppliers.
With thanks again.
Regards, Gerard
Customer service was excellent today! I have never had a company go behind the scenes to see what was happening with my payment error and resolve it so I could complete my order without having to do it all over again. Hats off to Propel Parts!
Great customer services, the best
Been buying from them for years and have almost never had an issue. The few times I had a question or something to handle, they have shown amazing customer service. Great product and a great company.
Good Customer Service. Fast Shipping. A+++
Will definitely use regularly!
Shipped the exact product we were looking for. Prompt Customer Service. Seamless cross-border shipping
Great customer service answered email question quickly.
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!!!
Customer service was great! There was a small problem with the part and they responded quickly and respectfully until was resolved! Highly recommended
Great service affordable parts
Product Questions
Frequently Asked Questions
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.
Compatible Models
This 2300940 Seal Ring is compatible with the following models:
3408, 3408C, 3408E, 3412D, 3412E, C175 & more...
Shipping | 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.
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