3F3759 O-Ring for Caterpillar Equipment

3F3759 is an O-ring made of NBR nitrile material for Caterpillar equipment. It is used on Caterpillar track-type tractors and wheeled tractor-scrapers in the models listed below. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified by the SKU 3F3759 and the equipment manufacturer part-number format 3F-3759. The listed dimensions describe the O-ring itself; the separate length, width, depth, and weight values are provided as product dimensions and weight.

Fitment

• Equipment brand: Caterpillar
• Equipment type: Track-type tractor
• Models: 127, 128, 25, 29
• Equipment type: Wheeled tractor-scraper
• Model: 619

The fitment information applies to the Caterpillar machine models specified above. The available data does not identify a particular installation position or assembly location on these machines.

Cross-reference numbers

Specifications

The O-ring has a nitrile construction and no coating. Its specified inner diameter is 2.63 inches, and its cross-section diameter is 0.13 inches. These values are the available dimensional specifications for the sealing ring. The listed product measurements are 7.5 cm in length, 7.5 cm in width, and 0.3 cm in depth, with a stated weight of 0.1 lb.

For identification and parts-list matching, use both number formats: 3F3759 and 3F-3759. The applicable equipment brand is Caterpillar, and the documented fitment is limited to track-type tractor models 127, 128, 25, and 29, plus wheeled tractor-scraper model 619.