Radiator & Components for 2012 GMC Sierra 2500 HD
No.
Part # / Description / Price
Price
1
Radiator 
GM
GM Description: Upgrade your Silverado or Sierra's cooling system with the Genuine GM OEM Radiator (MPN: 23172440), engineered specifically for 6.6L engines to deliver superior heat dissipation and engine protection. This authentic General Motors radiator features a light ...
MSRP $688.41
$450.22
MSRP $688.41
$450.22
2
Radiator Lower Mount GM
GM Notes: PARTS: Part included with radiator.
Description: Upgrade your 6.6L diesel engine's cooling system with the Genuine GM OEM Radiator Lower Mount (MPN: 19130029), engineered to provide secure support and optimal performance for 2015-2019 Duramax diesel trucks. This critical engine cooling component is manuf ...
MSRP $9.01
$6.45
MSRP $9.01
$6.45
3
Radiator Inlet Hose GM
GM Positions: Upper
Description: The Genuine GM OEM Radiator Inlet Hose (MPN: 22884211) is engineered to deliver coolant from your engine to the radiator with precision-fit reliability. This authentic General Motors part is specifically designed for 6.6L diesel engines in Silverado and Si ...
MSRP $84.67
$56.30
MSRP $84.67
$56.30
4
Multi-Purpose Clamp GM
GM Notes: PARTS: Part included with upper hose.
Description: The GM Multi-Purpose Clamp (MPN: 11562100) is a genuine OEM component engineered for 6.6L diesel engines across select GM vehicles. This essential fastening solution provides secure hose and component retention, delivering the reliability and durability yo ...
MSRP $16.20
$11.59
MSRP $16.20
$11.59
6
Radiator Outlet Hose GM
GM Positions: Lower
Description: # Product Description
This genuine GM OEM radiator outlet hose (MPN: 19258629) is engineered to maintain proper coolant flow from your engine's radiator to the engine block on Chevrolet Silverado and GMC Sierra trucks equipped with 6.6L diesel engines. As ...
MSRP $319.76
$210.08
MSRP $319.76
$210.08
7
Engine Coolant Reservoir Hose Clamp GM
GM Notes: PARTS: Part included with lower hose.
Description: Genuine GM OEM Engine Coolant Reservoir Hose Clamp (MPN: 11570388) secures coolant lines on select GM vehicles including 6.6L Duramax diesel, 6.0L, 4.3L, and eAssist-equipped models. This 35mm hose clamp maintains proper coolant flow and prevents leaks in ...
MSRP $9.11
$6.19
MSRP $9.11
$6.19
7
Multi-Purpose Clamp GM
GM Notes: PARTS: Part included with lower hose.
Description: The GM OEM Multi-Purpose Clamp (MPN: 11570383) is a genuine General Motors component engineered to secure hoses, lines, and connections throughout your vehicle's engine bay and fluid systems. This authentic GM clamp prevents leaks and system failures by ma ...
MSRP $45.52
$31.11
MSRP $45.52
$31.11
8
Radiator Surge Tank GM
GM Description: The GM OEM Radiator Surge Tank (MPN: 22866587) is the factory-engineered coolant reservoir designed specifically for Chevrolet Silverado and GMC Sierra pickup trucks equipped with the 6.6L Duramax diesel engine. This genuine General Motors part maintains o ...
MSRP $74.55
$50.94
MSRP $74.55
$50.94
9
20 P.S.I. Radiator Cap GM
GM Description: Genuine GM OEM 20 P.S.I. Radiator Cap (MPN: 13502509) is engineered to seal and pressurize your vehicle's cooling system, maintaining optimal operating temperatures and preventing coolant loss. This factory original radiator cap replacement is designed for ...
MSRP $22.67
$13.51
MSRP $22.67
$13.51
11
Multi-Purpose Clamp GM
GM Notes: PARTS: Part included with inlet hose.
Description: The GM OEM Multi-Purpose Clamp (MPN: 11570381) is a genuine General Motors component engineered for heavy-duty diesel engine applications, specifically designed for 6.0L and 6.6L diesel engines in 2015-2016 model year vehicles. This 22mm clamp secures crit ...
MSRP $11.02
$6.57
MSRP $11.02
$6.57
12
Engine Coolant Thermostat Housing GM
GM Description: The Genuine GM OEM Engine Coolant Thermostat Housing (MPN: 12642720) is an essential cooling system component designed to seal and regulate coolant flow in your diesel truck. This original equipment manufacturer part is engineered for Chevrolet Silverado a ...
MSRP $214.62
$117.50
MSRP $214.62
$117.50
12
Engine Coolant Outlet Pipe GM
GM Positions: Upper
Description: Genuine GM OEM Engine Coolant Outlet Pipe (MPN: 12645998) for 6.6L diesel engines is an authentic replacement part that regulates coolant flow and houses the thermostat assembly. This original equipment component connects your radiator hose directly to the ...
MSRP $152.87
$84.68
MSRP $152.87
$84.68
13
Engine Coolant Thermostat Housing Gasket GM
GM Description: The GM OEM Engine Coolant Thermostat Housing Gasket (MPN: 97223686) is a genuine lower housing seal engineered for 6.6L engines, preventing coolant leaks at the critical junction between your thermostat housing and engine block. This authentic General Moto ...
MSRP $10.44
$6.22
MSRP $10.44
$6.22
14
Thermostat Bypass Pipe GM
GM Description: 6.6L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
15
Thermostat Bypass Pipe Seal GM
GM Description: # Product Description Output
Upgrade your 6.6L diesel engine's cooling system with the Genuine GM OEM Thermostat Bypass Pipe Seal (MPN: 94011602), engineered to connect the bypass pipe to the lower thermostat housing. This authentic General Motors part en ...
MSRP $4.88
$2.91
MSRP $4.88
$2.91
16
Thermostat Bypass Pipe Seal GM
GM Description: The GM OEM Thermostat Bypass Pipe Seal (MPN: 94011603) is a genuine General Motors lower seal component engineered for 6.6L diesel engines to maintain proper coolant circulation between the bypass pipe and water pump. This original equipment part ensures r ...
MSRP $4.48
$2.67
MSRP $4.48
$2.67
17
Acdelco™ Thermostat GM
GM Description: 180 Degrees F. Silverado, sierra. 6.6l. 180 degrees. All models. 6.6l. Rear. Express, savana. 6.6l diesel. 180 degree. Incl.Gasket. Optional.
17
Acdelco™ Thermostat GM
GM Description: Incl.Gasket. Silverado, sierra. 6.6l. 185 degrees. All models. 6.6l. Front. Express, savana. 6.6l diesel. 185 degree. Optional. 185 Degrees F.
17
Engine Coolant Thermostat GM
GM Description: Upgrade your 6.6L diesel engine's cooling system with the Genuine GM OEM Engine Coolant Thermostat (MPN: 97241129), engineered for optimal thermal management in Silverado, Sierra, Express, and Savana trucks. This 185-degree thermostat precisely regulates c ...
MSRP $71.82
$40.90
MSRP $71.82
$40.90
17
Engine Coolant Thermostat GM
GM Description: The GM OEM Engine Coolant Thermostat (MPN: 97241130) is a genuine factory replacement part engineered to regulate coolant circulation through your vehicle's cooling system, ensuring your engine maintains optimal operating temperature. This 180-degree therm ...
MSRP $62.76
$35.74
MSRP $62.76
$35.74
18
Engine Coolant Thermostat O-Ring GM
GM Notes: PARTS: Part included with thermostat.
Description: The GM OEM Engine Coolant Thermostat O-Ring (MPN: 12680544) is an essential sealing component engineered to prevent coolant leaks from your engine's thermostat housing. This genuine General Motors replacement part is specifically designed for 6.6L diesel e ...
MSRP $14.00
$8.34
MSRP $14.00
$8.34
19
Engine Coolant Temperature Sensor GM
GM Description: The Genuine GM Engine Coolant Temperature Sensor (MPN: 12608814) is an OEM replacement part designed to monitor engine coolant temperature and alert drivers to overheating conditions, ensuring optimal engine performance on select GM vehicles. This authenti ...
MSRP $59.02
$33.61
MSRP $59.02
$33.61