6D7788 Joint for Caterpillar Equipment

6D7788 is a joint used in Caterpillar wheeled tractor-scrapers. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified by the SKU 6D7788 and is listed for use on the Caterpillar machine models and series specified below. The component is described as a sleeve-type joint without an external sleeve.

Fitment

The 6D7788 joint is used on Caterpillar wheeled tractor-scraper equipment, including the following models:

• 631C wheeled tractor-scraper
• 631D wheeled tractor-scraper
• 631E wheeled tractor-scraper
• 633C wheeled tractor-scraper
• 633D wheeled tractor-scraper
• 637 wheeled tractor-scraper
• 637D wheeled tractor-scraper
• 637E wheeled tractor-scraper
• 639D wheeled tractor-scraper

Fitment should be checked against the equipment model and the part number designation before installation, because the listed application is limited to the Caterpillar models shown above.

Cross-reference numbers

• 6D-7788
• 6D7788

6D7788 and 6D-7788 are the two number formats associated with this joint. The unhyphenated form is used as the product SKU, while the hyphenated form appears as the equipment part-number designation.

Specifications

The dimensional data for this part consists of a 0.5-inch inner diameter, a 2.5-inch control line outer diameter, a 7 cm length, a 6 cm width, and a 7.2 cm depth. The specified mounting configuration is a sleeve without an external sleeve, and the listed part weight is 1 lb.