6V6921 Seal O-Ring for Caterpillar Equipment

6V6921 is an O-ring seal intended for Caterpillar equipment. It is a circular sealing component identified by the equipment manufacturer part number 6V6921 and the hyphenated designation 6V-6921. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The seal is made from VMQ silicone and is specified by its cross-section dimensions and inner diameter. The supplied dimensional data identifies a cross-section width of 0.07 inches, a cross-section height of 0.07 inches, and an inner diameter of 0.66 inches. These dimensions describe the sealing ring itself and are the primary parameters for checking installation compatibility.

The part belongs to the O-Ring Seals category. It is supplied as an individual O-ring seal; no additional components, hardware, or installation tools are specified in the available product data. The listed part weight is 0.1 lb, while the listed package or overall dimensions are 2.2 cm in length, 2.2 cm in width, and 0.1 cm in depth.

Cross-reference numbers

• 6V6921
• 6V-6921

Specifications

When identifying the seal, compare the complete part number, material, cross-section size, and inner diameter with the requirements of the Caterpillar equipment assembly. The available data confirms compatibility with Caterpillar equipment at the brand level, but does not specify individual machine models or series. No model-specific fitment list is included.