GAUGE GP-COOLANT TEMPERATURE 1555232 - Caterpillar

Articulated Truck:
735 (S/N: WWC1-UP)
735B (S/N: L4D1-UP)
735C (S/N: LFJ1-UP)
740 (S/N: WWD1-UP)
740B (S/N: L4E1-UP; GLH1-UP)
740B EJECTOR (S/N: L4F1-UP)
Landfill Compactor:
826C (S/N: 87X1-UP)
826H (S/N: ZXT1-UP)
826K (S/N: SET1-UP)
Soil Compactor:
825C (S/N: 86X1-UP)
825H (S/N: ZHC1-UP)
825K (S/N: SEE1-UP)
Excavator:
374D (S/N: PJA1-UP; PAP1-UP; PAS1-UP; PAX1-UP)
Load Haul Dump:
R3000H (S/N: RCM1-UP)
Mobile Hydraulic Power Unit:
374D MHPU (S/N: JNZ1-UP)
Off-Highway Truck/Tractor:
770 (S/N: JND1-UP; M7W1-UP; BZZ1-UP)
770G (S/N: TWA1-UP; RMD1-UP; ECM1-UP)
773F (S/N: EED1-UP; EXD1-UP)
Quarry Truck:
773G (S/N: MWH1-UP; T5S1-UP)
775E (S/N: DTE1-UP)
775F (S/N: EYG1-UP; DLS1-UP)
775G (S/N: RFM1-UP; T5W1-UP)
Pipelayer:
PL83 (S/N: KSD1-UP)
PL87 (S/N: KKJ1-UP)
Track-Type Tractor:
D10N (S/N: 2YD1-UP; 3SK1-UP)
D10R (S/N: 3KR1-UP)
D10T (S/N: RAB1-UP; RJG1-UP)
D8R (S/N: 7XM1-UP)
Underground Articulated Truck:
AD30 (S/N: DXR1-UP)
AD55 (S/N: DNW1-UP)
AD55B (S/N: JNW1-UP)
AD60 (S/N: KNW1-UP)
Wheel Dozer:
824C (S/N: 85X1-UP)
824K (S/N: RWB1-UP)
844H (S/N: BTW1-UP)
844K (S/N: KLS1-UP)
Wheel Loader:
980G (S/N: 2KR1-UP)
980H (S/N: KZL1-UP)
986H (S/N: L8S1-UP; 9861-UP)
990H (S/N: BWX1-UP)
990K (S/N: DJK1-UP)
Wheel Tractor-Scraper:
621B (S/N: 2GB1-UP; 45P1-UP)
621E (S/N: 6AB1-UP)
621F (S/N: 4SK1-UP)
621G (S/N: DXB1-UP; KLK1-UP; NEL1-UP; KJW1-UP)
623B (S/N: 46P1-UP)
623E (S/N: 6CB1-UP; 6YF1-UP)
623F (S/N: 6BK1-UP; 5EW1-UP)
627E (S/N: 7CG1-UP)
627F (S/N: 1DL1-UP)
631D (S/N: 24W1-UP)
633D (S/N: 25W1-UP)
637D (S/N: 26W1-UP; 27W1-UP; 71W1-UP)
641B (S/N: 65K1-UP)
650B (S/N: 58K1-UP)
651B (S/N: 67K1-UP)
657 (S/N: 53K1-UP)
657B (S/N: 53K1-UP; 68K1-UP; 47M1-UP)
657E (S/N: 6PR1-UP; 7KR1-UP; 86Z1-UP; 87Z1-UP)
657G (S/N: W1B1-UP; W1C1-UP; W1E1-UP; W1F1-UP; GER1-UP)
660B (S/N: 58K1-UP)
666B (S/N: 66K1-UP)
A new piston body is available for certain C15 and C27 applications. The additional piston is comprised of a microalloy that incorporates a lower land support. The cylinder pack part numbers will not change. However, the pistons that are used within the packs can have a different appearance.
Illustration 1 g03322581
New piston
Illustration 2 g03322578
Current pistonThe new piston in Illustration 1 is a direct replacement for the current piston in Illustration 2. The new pistons have the same weight and balance as the current pistons, and meet the same emissions standards. Cylinder packs that utilize current and new pistons can be used together in the same engine. Each cylinder pack with multiple designed pistons uses the same rings, rods, and pins as the previous piston. Refer to the following tables for the piston part numbers and the corresponding retainer clip for each cylinder pack.The new pistons are adaptable back to the first production of the engines in the above listed machines.
Table 1
Piston and Retainer Part Numbers for 10R-6007 Cylinder Pack Gp    
C15 Tier III Machine 18:1 compression ratio (c/r)    
Piston Part