6L9965 O-Ring for Caterpillar Equipment

6L9965 is a standard O-ring used as an axial or radial seal in Caterpillar engines and machines. The seal is made from silicone (VMQ) material and has a Shore A hardness of 70. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The O-ring is identified by the Caterpillar equipment part number 6L9965 and is also written as 6L-9965. The supplied part is a single standard sealing ring with no coating. The available product data lists the seal material as rubber and specifies silicone (VMQ) as the main material.

Fitment

The 6L9965 O-ring is used on Caterpillar engine and machine applications equipped with the following engine models:

• Caterpillar 3304
• Caterpillar 3306
• Caterpillar 3406
• Caterpillar 3406C
• Caterpillar 3406E
• Caterpillar 3408
• Caterpillar 3408C
• Caterpillar 3408E
• Caterpillar 3412D
• Caterpillar 3412E

Fitment is listed for Caterpillar engine-machine applications. The O-ring may be installed in an axial or radial sealing position, depending on the relevant assembly and service location.

Cross-reference numbers

• 6L9965
• 6L-9965

6L9965 and 6L-9965 are two written formats of the same part number. The first format omits the hyphen; the second format includes the hyphen.

Specifications