Radiator & Components for 2020 GMC Sierra 3500 HD
1. Radiator Upper Bracket 
2. Auxiliary Radiator 3. Block Heater 
4. Lower Baffle Bolt 
5. Lower Baffle Bolt 
6. Auxiliary Pump 
7. Reservoir Cap 
8. Cap 
9. Reservoir Cap 
10. Cap 
11. Reservoir Cap 
12. Reservoir Cap 
13. Cap 
14. Reservoir Cap 
15. Reservoir Cap 
16. Reservoir Cap 
17. Reservoir Cap 
18. Reservoir Cap 
19. Reservoir Cap 
20. Reservoir Cap 
21. Reservoir Cap 
22. Cap 
23. Shutter Bolt 
24. Shutter Bolt 
25. Reservoir Cap 
26. Reservoir Cap 
27. Lower Shutter Bolt 
28. Reservoir Cap 
29. Reservoir Cap 
30. Reservoir Cap 
31. Reservoir Cap 
32. Reservoir Cap 
33. Reservoir Cap 
34. Reservoir Cap 
35. Reservoir Cap 
36. Reservoir Cap 37. Lower Baffle Bolt No.
Part # / Description / Price
Price
2
Passenger Side Radiator Upper Bracket 
GM
GM Positions: Right
Description: 6.6L gas. 6.6L diesel, engine cooling. Helps align and secure your vehicle's radiator mount
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
Collision parts are designed to help promote proper and safe repair
MSRP $20.58
$15.37
MSRP $20.58
$15.37
2
Driver Side Radiator Upper Bracket GM
GM Positions: Left
Description: 6.6L gas. 6.6L diesel, engine cooling. Helps align and secure your vehicle's radiator mount
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
Collision parts are designed to help promote proper and safe repair
MSRP $20.58
$15.37
MSRP $20.58
$15.37
2
Driver Side Radiator Lower Bracket GM
GM Positions: Left
Description: Helps align and secure your vehicle's radiator mount
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
Collision parts are designed to help promote proper and safe repair
MSRP $228.25
$159.43
MSRP $228.25
$159.43
2
Passenger Side Radiator Lower Bracket GM
GM Positions: Right
Description: Helps align and secure your vehicle's radiator mount
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
Collision parts are designed to help promote proper and safe repair
MSRP $228.25
$159.43
MSRP $228.25
$159.43
3
Radiator Upper Insulator GM
GM Positions: Left
Description: 6.6L gas. 6.6L diesel, engine cooling, upper. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $9.01
$6.98
MSRP $9.01
$6.98
4
Radiator Lower Mount GM
GM Positions: Left
Notes: PARTS: Part included with radiator.
Description: 6.6L diesel, 2017-19. 6.6L diesel, engine cooling, center. 6.6L turbo diesel. 6.6L diesel 2015-16. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $9.01
$6.98
MSRP $9.01
$6.98
5
Radiator Insulator GM
GM Positions: Left
Notes: PARTS: Part included with radiator.
Description: 6.6L diesel, engine cooling, lower.
MSRP $16.56
$12.82
MSRP $16.56
$12.82
6
Radiator Drain Petcock GM
GM Notes: PARTS: Part included with radiator.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $24.48
$18.21
MSRP $24.48
$18.21
9
Radiator Inlet Hose Clamp GM
GM Description: 6.6L diesel, engine cooling, rear. Easy to install or remove
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $34.42
$24.98
MSRP $34.42
$24.98
11
Radiator Hose Clamp GM
GM Notes: PARTS: Part included with lower hose.
Description: 2.8L. Easy to install or remove
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $8.70
$6.73
MSRP $8.70
$6.73
11
Multi-Purpose Clamp GM
GM Positions: Lower
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $6.64
$4.87
MSRP $6.64
$4.87
13
Engine Coolant Reservoir GM
GM Description: GM Original Equipment Engine Coolant Reservoirs are designed, engineered, and tested to rigorous standards, and are backed by General Motors.
Reservoirs typically hold excess or an expansion of coolant and help maintain optimal operating temperatures in yo ...
MSRP $101.95
$72.15
MSRP $101.95
$72.15
14
Radiator Surge Tank Cap GM
GM Description: GM Genuine Parts Radiator Surge Tank Caps are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles.
MSRP $20.14
$12.48
MSRP $20.14
$12.48
15
MSRP $24.80
$18.44
16
Multi-Purpose Clamp GM
GM Description: These are Sold Individually. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $62.60
$40.35
MSRP $62.60
$40.35
17
Multi-Purpose Clamp GM
GM Description: 6.6L diesel, engine cooling, large. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $7.14
$5.25
MSRP $7.14
$5.25
18
Engine Coolant Air Bleed Pipe GM
GM Description: 6.6L diesel, engine cooling. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $26.42
$18.67
MSRP $26.42
$18.67
20
Radiator Surge Tank Outlet Hose GM
GM Description: GM Genuine Parts Engine Coolant Hoses are designed, engineered, and tested to rigorous standards, and are backed by General Motors.
GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles.
MSRP $149.95
$105.22
MSRP $149.95
$105.22
22
MSRP $29.30
$21.79