Thermostats
OEM GM Thermostats
OEM GM Thermostats are essential to keeping your vehicle running at its best. At GMPartsClub, we provide a complete selection of Genuine GM and OEM-quality parts that match the fit, form, and performance of the originals. Whether you're maintaining a Chevrolet, GMC, Buick, or Cadillac, you’ll find exactly what you need. Our parts are backed by factory standards and fast nationwide shipping to get your vehicle back on the road quickly and reliably. Avoid risky aftermarket options—choose OEM parts from GMPartsClub to preserve performance, safety, and value. Browse our inventory of oem gm thermostats and order with confidence today.
Multi-Purpose Stud
GM
11611144
6.6L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$5.56
MSRP $8.12
Save $2.56
31.5% Off 
Engine Coolant Water Outlet
GM
97371077
All models. 6.6l. Thick base helps prevent leaks by minimizing warpage
Leak-resistant Neoprene O-ring seal
Helps your cooling system...
$324.66
MSRP $584.98
Save $260.32
44.5% Off 
Engine Coolant Outlet O-Ring
GM
25189205
1.8L. Sonic. Cruze, Cruze Limited. 2009-11. Aveo, Aveo5. G3. Helps prevent leakage from the engine coolant outlet
This GM Genuine Part...
$10.52
MSRP $17.54
Save $7.02
40% Off 
Engine Coolant Water Inlet Seal
GM
90537471
Helps repair leaking cooling system
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by...
$16.83
MSRP $28.42
Save $11.59
40.8% Off 
Engine Coolant Water Outlet
GM
12556594
All models. 5.0l, 5.7l. Express, savana. 5.0l, 5.7l. 1/2, 3/4 & 1 ton, 1996 new style, 5.0, 5.7L. Thick base helps prevent leaks by...
$26.76
MSRP $45.16
Save $18.40
40.7% Off 
Engine Coolant Water Outlet
GM
12557563
All models. 4.3l. Silverado, sierra. 4.3l. Thick base helps prevent leaks by minimizing warpage
Leak-resistant Neoprene O-ring seal...
$71.39
MSRP $125.24
Save $53.85
43% Off 
Engine Coolant Water Outlet
GM
12556593
6 cylinder, with high output. Astro, Safari. Cpi, mpi. 4.3L. All models. Express, savana. 2003-14. This GM Genuine Part is designed,...
$14.53
MSRP $24.52
Save $9.99
40.7% Off 
Engine Coolant Water Outlet
GM
10147884
All models. 5.0l, 5.7l. Exc.Armored Body Equipment. Thick base helps prevent leaks by minimizing warpage
Leak-resistant Neoprene O-ring...
$53.76
MSRP $93.50
Save $39.74
42.5% Off 
Engine Control Module Wiring Harness Bracket
GM
13276981
1.8L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$4.51
MSRP $6.60
Save $2.09
31.7% Off 
Engine Coolant Seal
GM
12561155
O-Ring. 4.2L. 2.8 & 2.9L. 5.3L. 6.0L. 3.7L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed...
$22.30
MSRP $37.64
Save $15.34
40.8% Off 
M6x1x60 Multi-Purpose Bolt
GM
11519973
3.6L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$3.91
MSRP $5.72
Save $1.81
31.6% Off 
Water Outlet Gasket
GM
10105135
O-Ring. 6 cylinder, without high output. May be made from fiber or a rubberized composite material
This GM Genuine Part is designed,...
$3.83
MSRP $6.38
Save $2.55
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