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Home 2026 GMC Sierra 3500 HD SLE 6.6L V8 - Diesel Radiator & Components

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2026 GMC Sierra 3500 HD

SLE 6.6L V8 - Diesel

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Radiator & Components for 2026 GMC Sierra 3500 HD

Diagram 1 1. Radiator Coolant Hose Diagram 2 2. Engine Coolant Reservoir Cap Diagram 3 3. Engine Coolant Reservoir Cap Diagram 4 4. Engine Coolant Reservoir Cap Diagram 5 5. Engine Coolant Reservoir Cap Diagram 6 6. Radiator Coolant Hose Diagram 7 7. Engine Coolant Reservoir Cap Diagram 8 8. Engine Coolant Reservoir Cap Diagram 9 9. Engine Coolant Reservoir Cap Diagram 10 10. Engine Coolant Reservoir Cap Diagram 11 11. Engine Coolant Reservoir Cap Diagram 12 12. Engine Coolant Reservoir Cap Diagram 13 13. Engine Coolant Reservoir Cap Diagram 14 14. Engine Coolant Reservoir Cap Diagram 15 15. Engine Coolant Reservoir Cap Diagram 16 16. Engine Coolant Reservoir Cap Diagram 17 17. Engine Coolant Reservoir Cap 18. Engine Coolant Thermostat Gasket

Related Parts

Part # / Description / Price
Price
12680544 - Cooling System: Engine Coolant Thermostat Gasket for GM Image
Engine Coolant Thermostat O-Ring
12680544
GM GM
Description: 6.6L diesel, 185 deg therm. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. 6.6L diesel, 180 deg therm. Seals your vehicle's thermostat housing Helps prevent coolant from leaking from the engine This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $14.00
$8.05
MSRP $14.00
$8.05
13545896 - Cooling System: Radiator Cap for GM Image
20 P.S.I. Radiator Surge Tank Cap
13545896
GM GM
MSRP $20.14
$11.58
MSRP $20.14
$11.58
84098260 - Cooling System: Radiator for GM Image
Engine Auxiliary Radiator
84098260
GM GM
Description: 6.6L diesel, fuel cooling. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Lightweight; the radiators have a positive heat transfer to weight ratio Corrosion-resistant aluminum designed core helps optimize the radiators long lasting service life This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $316.67
$209.00
MSRP $316.67
$209.00
86591535 - Cooling System: Engine Auxiliary Water Pump for GM Image
Auxiliary Pump
86591535
GM GM
Description: 6.6L diesel, fuel cooling.
MSRP $231.34
$145.08
MSRP $231.34
$145.08
85119158 - Cooling System: Radiator Coolant Hose for GM Image
Outlet Hose
85119158
GM GM
Positions: Right
Description: 6.6L diesel, fuel cooling. Silverado, Sierra 2500 HD. Outlet. Silverado, Sierra 3500 HD. Auxiliary Radiator. Emission Reduction Fluid Injector Cooling.
MSRP $197.46
$130.32
MSRP $197.46
$130.32
85699488 - Cooling System: Radiator Coolant Hose for GM Image
Inlet Hose
85699488
GM GM
Positions: Left
Description: Silverado, Sierra 2500 HD. Inlet. Silverado, Sierra 3500 HD. Auxiliary Radiator. Emission Reduction Fluid Injector Cooling. 6.6L diesel, fuel cooling, to 09/19/2024.
MSRP $133.53
$88.12
MSRP $133.53
$88.12
85122989 - Cooling System: Radiator Coolant Hose for GM Image
Radiator Inlet Hose
85122989
GM GM
Positions: Upper
Description: Manufactured to GM OE specification for fit, form, and function
MSRP $37.85
$25.21
MSRP $37.85
$25.21
85610318 - Cooling System: Radiator for GM Image
Engine Radiator
85610318
GM GM
Description: Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Primary. 6.6L diesel, engine cooling.
MSRP $879.94
$580.77
MSRP $879.94
$580.77