Our office will be closed 9/7/2026 in observance of Labor Day. Orders placed during this time will be processed when our office opens 9/8/2026.
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This high quality aftermarket replacement part is guaranteed to meet OEM specifications and is shipped with a 12-month warranty.
Also available in genuine.
THERMOSTAT - 4B 3.9 / 6B 5.9 / ISB 6.7 / QSB
Genuine Cummins Part
$110.93
WATER PUMP KIT - B SERIES / ISB SERIES (W/ MOUNTING GASKET)
$116.52
SEAL, VALVE STEM (CUMMINS)
$1.84
AIR INTAKE GASKET
$5.21
RECTANGULAR RING SEAL
$10.72
THERMOSTAT HOUSING GASKET
$31.58
