Engine Components
Engine Wiring Harness
GM
23221521
3.6L, gas. 3.6L, without pzev. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General...
$1,120.87
MSRP $1,335.96
Save $215.09
16.1% Off 
Engine Connecting Rod
GM
12647161
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$76.57
MSRP $80.03
Save $3.46
4.3% Off 
Engine Wiring Harness
GM
84414382
6.0L, 2wd. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$600.12
MSRP $627.44
Save $27.32
4.4% Off 
Engine Wiring Harness
GM
84798834
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$586.60
MSRP $613.29
Save $26.69
4.4% Off 
Engine Coolant Thermostat
GM
12680456
Silverado, sierra. 6.6l. 185 degrees. 6.6L diesel, 185 deg. Silverado, Sierra 2500 HD. 185 degrees. Silverado, Sierra 3500 HD. 185...
$14.03
MSRP $16.72
Save $2.69
16.1% Off 
Engine Coolant Thermostat
GM
12680457
6.6L diesel, 180 deg. Silverado, Sierra 2500 HD. 180 degrees. Silverado, Sierra 3500 HD. 180 degrees. Silverado, sierra. 6.6l. 180...
$14.36
MSRP $17.12
Save $2.76
16.1% Off 
Engine Auxiliary Radiator
GM
84098260
6.6L diesel, fuel cooling. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Lightweight; the radiators have a positive heat...
$318.82
Engine Wiring Harness
GM
84458889
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$594.82
MSRP $621.76
Save $26.94
4.3% Off Engine Wiring Harness
GM
84557941
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$888.58
MSRP $928.82
Save $40.24
4.3% Off 
Engine Valve Cover
GM
12554257
Silverado, sierra. Left. 4.3L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General...
$96.49
MSRP $100.88
Save $4.39
4.4% Off Engine Wiring Harness
GM
95398798
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$550.15
MSRP $575.19
Save $25.04
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