1B8709 Woodruff Key for Caterpillar Equipment

The 1B8709 Woodruff Key is a segmented shaft key used in Caterpillar equipment, including articulated dump trucks, Challenger machines, earthmoving compactors, and Caterpillar engines installed in machinery. The part is identified by SKU 1B8709 and Caterpillar number 1B-8709. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The key is installed in a machined shaft keyway to transmit rotation between the shaft and the mounted component. The listed application data covers several Caterpillar machine series and engine-related equipment configurations.

Fitment

• Caterpillar articulated dump trucks
• Caterpillar Challenger equipment
• Caterpillar earthmoving compactors
• Caterpillar engines installed in machinery

Compatible Caterpillar models

• Caterpillar D250E
• Caterpillar D250E II
• Caterpillar D300E
• Caterpillar D300E II
• Caterpillar 65C
• Caterpillar 65D
• Caterpillar 816F
• Caterpillar 815B
• Caterpillar 815F
• Caterpillar 3204

Fitment should be checked against the machine model and the keyway dimensions before installation, since the listed equipment includes different machine types and applications. The model list above reflects the equipment applications provided for this part number.

Cross-reference numbers

• 1B8709
• 1B-8709

Specifications

The dimensional data supplied for the part includes a 3/16-inch thickness and a 7/8-inch diameter. The packaging or supply configuration is a single Woodruff key; no additional hardware or installation components are specified.