RETAINER 2J3785 - Caterpillar

Table 4
Brakes on the Left Side for D7H, D7R, and D7R Series II    
Description     Old Part Numbers     New Part Numbers    
Brake Group     8E-5274     227-4085    
Brake Housing Assembly     205-5311     227-2451    
Carrier     7T-9785     216-7431    
Motor Adapter Group     7T-3980     229-6422    Right Brake
The new D7R Series II brake group for the right side is interchangeable with the old brake group. The 8E-5273 Brake and Planetary Gp is not serviceable, but the new parts for the brake group are a direct replacement for the old parts for the brake group except for the sun gear. Refer to Service Magazine, SEPD0735, "A New Sun Gear Assembly and A New Carrier Are Now Used" for more information about reworking your former carrier. Refer to Table 5 for the correct parts for your machine.
Table 5
Brakes on the Right Side for D7H, D7R, and D7R Series II    
Description     Old Part Numbers     New Part Numbers    
Brake Group     8E-5273     244-6611    
Sun Gear Assembly     9W-3940     198-4410    
Planetary Carrier     9W-7839     209-7193    
Planetary Gears     9W-7481     175-2166    D8R Series II
Improvements have been made to the braking system on