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1662903 O-Ring Seal for Caterpillar

Aftermarket O-Ring Seal 1662903 for Caterpillar 3406E and C15. The minimum order quantity starts from 500 pieces. Request a quotation today.

Applications: Caterpillar 3406E and C15
Categories: Caterpillar , O-ring
Caterpillar 3406ECaterpillar C15

Key Features – Caterpillar 1662903:

  • Provides sealing for static circular grooves in engine assemblies
  • Helps prevent fluid or gas escape from critical sealing points
  • New aftermarket replacement available for bulk orders
Quality Guarantee Icon Quality products direct from Taiwan. Read our shipping information

MJ GASKET

Product information

Manufacturer MJ GASKET
Brand Caterpillar
Part number 1662903
Type O-Ring Seal
Position Fuel injector sleeve
Material Rubber
MOQ / Lead Time 500 to 1,000 pieces (varies by item); exact MOQ and lead time are confirmed with your quotation
Engine family
Caterpillar 3406E Caterpillar C15

All original equipment part numbers and brand names are used for cross-reference identification purposes only. MJ Gasket is an independent manufacturer.

Compatibility

Compatibility: engines fitted by 1662903

Engine family Variants covered
Caterpillar 3406E / C15 3406E, C15

Fits additional Caterpillar engines; send your engine serial number or machine model to confirm.

Request a quotation

Application

Application

This O-ring seals the fuel injector sleeve in the cylinder head on the Caterpillar 3406E and C15, keeping coolant and fuel apart around the injector bore. It is replaced whenever the injector sleeves are serviced, and a failed sleeve seal is one of the classic causes of coolant contamination on these engines. Truck workshops and engine rebuilders order them in sets to cover all six cylinders.

Certification

FAQ

Shipping & Delivery

  1. All parts are shipped out from Taiwan, you can arrange the pick-up or a shipping fee will be quoted using UPS/FedEx/DHL or TNT.
  2. Buyer is responsible for import duty and taxes.

Payments Methods

  1. Credit Card: there will be a 3% transaction fee if the order is under USD 3,000.
  2. Paypal: there will be a 10 % PayPal fee for each transaction.
  3. Wire Transfer Bank: the details will be provided after the order is placed.

Product FAQ: 1662903 O-Ring Seal

1. Will the 1662903 fit my engine?

The 1662903 is listed for the following engines: Caterpillar 3406E, Caterpillar C15. It is fitted at the following position: fuel injector sleeve. Send us your engine serial number or machine model and we will cross-check it against the application list before shipment.

2. Where is the 1662903 installed?

The 1662903 is fitted at the following position: fuel injector sleeve. If you are not sure it is the part you need, send us your engine serial number or machine model and we will confirm it before quoting.

3. What material is the 1662903 made of?

The 1662903 is supplied in rubber. The material specification follows our own drawing and production process for this item, which is how we reproduce the part to the original fit.

4. What is the minimum order quantity?

The minimum order quantity for the 1662903 o-ring seal is 500 to 1,000 pieces and varies by item. The exact minimum order quantity and lead time are confirmed with your quotation.

5. Can MJ Gasket supply other Caterpillar o-ring seals that are not listed on this site?

Yes. We produce gaskets and seals by duplication from your sample or drawing for volume orders, including Caterpillar parts that are not published here. Send us the part number, a sample, or a drawing, together with the quantity you require, and our sales team will respond with a quotation.

MJ GASKET - Professional Aftermarket Gasket Manufacturer

Founded in Taiwan, MJ GASKET is a professional aftermarket gasket manufacturer and sealing solution provider, serving global customers across industrial, marine, pickup truck diesel, and hydraulic applications.

With years of industry expertise and a strong focus on quality, MJ GASKET is committed to delivering dependable aftermarket sealing solutions that meet the needs of professional distributors, engine builders, and industrial partners worldwide.

Explore our full range of gasket products and feel free to Contact Us for support or cooperation opportunities.

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