Pin 9W7991 for Caterpillar Equipment

9W7991 is a straight pin used in tracked bulldozer applications manufactured by Caterpillar. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The pin is identified by the designations 9W7991 and 9W-7991. The supplied application data associates this part with Caterpillar tracked bulldozers in the 57H, 8, 8A, 8SU, 8U, D8N, and D8R series. The equipment brand referenced here is Caterpillar; the replacement part itself is manufactured by CTP.

Fitment

The part is listed for the following Caterpillar tracked bulldozer applications:

• Tracked bulldozers
• 57H series
• 8 series
• 8A series
• 8SU series
• 8U series
• D8N series
• D8R series

These model designations are reproduced from the available application information for part number 9W-7991. Equipment configuration and the position of the pin should be checked against the machine parts documentation before installation.

Cross-reference numbers

• 9W7991
• 9W-7991

9W7991 is the SKU designation for this listing, while 9W-7991 is the hyphenated part-number format shown in the application data. Both designations refer to the same pin identification used for the listed Caterpillar equipment applications.

Specifications

The component specification identifies a steel, unplated, straight pin with a 2.99-inch finger diameter and a 9.33-inch length. A puller hole is provided as the removal aid, and no inner groove is specified for this part. The available dimensional data also records a weight of 18.6 lb and additional measurements of 23.17 cm, 8.25 cm, and 76.2 cm.