CONDENSER GP-REFRIGERANT 1039527 - Caterpillar

Truck Engines:
3176B (S/N: 3NL; 7LG; 9CK; 9WK)
3176C (S/N: 2AW)
C-10 (S/N: 2PN; 3CS; 8YS; BEW)
C-12 (S/N: 1YN; 2KS; 9NS; BFH)
Description of Change: A new valve bridge assembly is being produced for engines that are equipped with compression brakes. The new valve bridge assembly has an improved design. The former valve bridge assembly has a screw and a jam nut assembly. The screw and jam nut assembly is holding the actuation pin for the compression brake in the bridge. The new valve bridge assembly has eliminated the screw and the jam nut. The actuation pin is now an integral part of the bridge.
Illustration 1 g00749467
(A) Former 144-2919 Valve Bridge Assembly (B) New 176-4172 Valve Bridge Assembly Adaptable To: The new 176-4172 Valve Bridge Assembly (B) is a direct replacement for the former 144-2919 Valve Bridge Assembly (A). The valve lash setting for the new valve bridge assembly is the same setting as the former valve bridge assembly.The improved valve bridge assembly became effective in production on the truck engines with the following serial numbers:
3176C (S/N: 2AW11134-UP)
C-10 (S/N: 3CS17813-UP) (S/N: 8YS7579-UP)
C-12 (S/N: 2KS58289-UP) (S/N: 9NS20096-UP)The new 176-4172 can be used to replace the former 144-2919 Valve Bridge Assembly in the following truck engines:
3176B (S/N: 3NL1-UP; 7LG1-UP; 9CK1-UP; 9WK1-UP)
3176C (S/N: 2AW1-11183)
C-10 (S/N: 2PN1-UP; 3CS1-17812; 8YS1-7578) (S/N: BEW1-UP)
C-12 (S/N: 1YN1-UP; 2KS1-58288; 9NS1-20095; BFH1-UP)