PISTON-CLUTCH 7G3708 - Caterpillar

Engine:
3508 (S/N: 95Y1-UP; 96Y1-UP; 97Y1-UP; 23Z1-UP; 68Z1-UP; 70Z1-UP)
3508B (S/N: S2A1-UP; CBB1-UP; S2B1-UP; S2D1-UP; S2E1-UP; S2F1-UP; 2BM1-UP; 3DM1-UP; 7SM1-UP; 6PN1-UP; 1TW1-UP; 2HW1-UP; 3DW1-UP; BPX1-UP)
3508C (S/N: TTA1-UP; TTB1-UP; LLC1-UP; LLE1-UP)
3512 (S/N: 49Y1-UP; 50Y1-UP; 51Y1-UP; 24Z1-UP; 65Z1-UP; 67Z1-UP)
3512B (S/N: 2AF1-UP; FFG1-UP; S2G1-UP; S2H1-UP; S2J1-UP; S2K1-UP; S2L1-UP; S2M1-UP; 7HM1-UP; 8EM1-UP; 8RM1-UP; BRN1-UP; S2N1-UP; 4TN1-UP; 1PW1-UP; 2GW1-UP; 4AW1-UP; 2EZ1-UP)
3512C (S/N: LLA1-UP; R1A1-UP; TTC1-UP; LLF1-UP; TTF1-UP; MRG1-UP; TTG1-UP; MKH1-UP; SLM1-UP; E3W1-UP)
3516 (S/N: 27Z1-UP; 29Z1-UP; 71Z1-UP; 73Z1-UP)
3516B (S/N: B5G1-UP; CAN1-UP; CBN1-UP; 6HN1-UP; 7RN1-UP; 8KN1-UP; 9AN1-UP; S2P1-UP; S2R1-UP; S2S1-UP; S2T1-UP; S2W1-UP; 1NW1-UP; 2FW1-UP; 2JW1-UP; 3CW1-UP; 4BW1-UP; S2Y1-UP; S2Z1-UP)
3516C (S/N: TTD1-UP; PAG1-UP; TTH1-UP; TTJ1-UP; KEN1-UP; JTS1-UP; PES1-UP)
Generator Set:
3508 (S/N: 5PW1-UP; CNF1-UP)
3508B (S/N: 5KW1-UP; CNB1-UP; BGX1-UP; ZAD1-UP)
3512 (S/N: ZAF1-UP; 6WW1-UP; CMJ1-UP; PTG1-UP; PTH1-UP)
3512B (S/N: ZAJ1-UP; ZAH1-UP; PTM1-UP; 6GW1-UP; CMC1-UP; BLF1-UP; BRK1-UP; FDE1-UP; PTF1-UP)
3512C (S/N: RMS1-UP; SBG1-UP)
3516 (S/N: GZR1-UP; GZX1-UP; RKT1-UP; ZAL1-UP; 25Z1-UP; 8TW1-UP; CMD1-UP; PTD1-UP)
3516B (S/N: PBR1-UP; GAR1-UP; GZS1-UP; GZT1-UP; GZY1-UP; LEK1-UP; ZAR1-UP; ZAP1-UP; 8NW1-UP; FDN1-UP; BMB1-UP; BPJ1-UP; FDX1-UP; YAP1-UP)
3516C (S/N: SBJ1-UP; SBK1-UP)
Pumper:
SPF343 (S/N: 6RZ1-UP)
SPF343C (S/N: RTX1-UP)
Power Module:
PM3508 (S/N: BLM1-UP)
PM3512 (S/N: BRF1-UP; BNR1-UP)
PM3516 (S/N: BPD1-UP)
Description of Change: More durable valve components are used on 3500 Engines. Refer to Table 1. A yellow stripe of paint on the outside diameter of the outer valve spring and the inner valve spring can be used to identify the new valve springs. The new outer valve spring is wound in the opposite direction of the former outer valve spring. The new inner valve spring is wound in the opposite direction of the former inner valve spring.When the new valve components are used, all of the former part numbers for that cylinder head must be replaced with the new part numbers. The former part numbers can not be mixed with the new part numbers.Adaptable To:
Table 1
New Part Numbers and Former Part Numbers    
Qty     New Part Number     Part Name     Former Part Number    
4     316-5976     Outer Spring     281-6157    
4     316-5977     Inner Spring     194-4902    
2     316-5978     Rotocoil As (Inlet)     197-7062    
2     316-5979     Rotocoil As (Exhaust)     197-7063    
2     316-5980     Valve Stem Seal     197-7006