Emission Components for 2025 GMC Sierra 3500 HD
No.
Part # / Description / Price
Price
1
MSRP $1,445.68
$775.25
2
2020-2025 GM - Diesel Exhaust Fluid (DEF) Tank Front Bracket 
GM
GM Description: 6.6L diesel, emission reduction system. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $7.43
$5.58
MSRP $7.43
$5.58
3
MSRP $55.12
$30.52
4
2020-2025 GM - Diesel Exhaust Fluid (DEF) Tank Strap GM
GM Description: 6.6L diesel, emission reduction system. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $25.24
$14.48
MSRP $25.24
$14.48
5
MSRP $215.58
$115.60
6
2020-2024 GM - Emission Reduction Fluid Tank Shield GM
GM Notes: PARTS: Part included with tank shield.
Description: 6.6L diesel, emission reduction system. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $25.98
$17.89
MSRP $25.98
$17.89
7
2020-2025 GM - Heat Shield GM
GM Description: 6.6L diesel, emission reduction system.
MSRP $98.18
$65.24
MSRP $98.18
$65.24
8
2020-2024 GM - Reductant Fluid Injector GM
GM Description: Manufactured to GM OE specification for fit, form, and function
MSRP $113.68
$62.04
MSRP $113.68
$62.04
9
2020-2024 GM - Exhaust System Front Gasket GM
GM Notes: PARTS: Part included with injector.
Description: 6.6L diesel, emission reduction system. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $3.83
$2.99
MSRP $3.83
$2.99
10
2024-2025 GM - Fluid Pipe GM
GM Description: 6.6L diesel, emission reduction system.
MSRP $144.50
$78.86
MSRP $144.50
$78.86
11
2021-2024 GM - Reductant Control Module GM
GM Description: Emission reduction level. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. 6.6L diesel, emission reduction system. Suburban. 3.0l diesel. Tahoe. 3.0l diesel. Escalade. 3.0l diesel. Yukon. 3.0l diesel. 3.0L diesel emission reduction system.
12
Harness GM
GM Description: 6.6L diesel, emission reduction system, 2nd design. 6.6L diesel, emission reduction system, all.
MSRP $203.96
$109.37
MSRP $203.96
$109.37
13
2020-2024 GM - Emission Reduction Fluid Tank Filler Pipe GM
GM Description: 6.6L diesel, emission reduction system, regular cab. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $130.36
$71.14
MSRP $130.36
$71.14
13
2020-2024 GM - Emission Reduction Fluid Tank Filler Pipe GM
GM Description: 6.6L diesel, emission reduction system, crew cab, 6.9 ft box. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $118.78
$64.82
MSRP $118.78
$64.82
13
2020-2024 GM - Emission Reduction Fluid Tank Filler Pipe GM
GM Description: 6.6L diesel, emission reduction system, crew cab, 8 ft box. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $142.48
$77.76
MSRP $142.48
$77.76
13
2020-2024 GM - Emission Reduction Fluid Tank Filler Pipe GM
GM Description: 6.6L diesel, emission reduction system, double cab. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $114.44
$62.46
MSRP $114.44
$62.46
14
2020-2024 GM - Diesel Emissions Fluid (DEF) Tank Filler Cap GM
GM Description: 6.6L diesel, emission reduction system. Emission reduction system, 3.0L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $26.58
$15.25
MSRP $26.58
$15.25
No.
Part # / Description / Price
Price
1
2024 GM - Exhaust Temp Sensor GM
GM Description: Exhaust. Silverado, Sierra 2500 HD. At catalytic converter. Front. Silverado, Sierra 3500 HD. 6.6L diesel, at manifold. 6.6L diesel, sensors, at converter.
MSRP $78.10
$49.32
MSRP $78.10
$49.32
2
2017-2024 GM - Exhaust Temperature Sensor GM
GM Description: 6.6L diesel, egr valve & related components, 2017-19, upper, rear. Exhaust temp sensor. 6.6l. Position 2. 6.6L diesel, sensors, at exh pipe. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Helps provide accurate temperature detection
Heat and vibration resistant for operating efficiently
MSRP $78.78
$43.62
MSRP $78.78
$43.62
3
2017-2023 GM - Exhaust Temperature Sensor GM
GM Description: 6.6L diesel, egr valve & related components, 2017-19, lower. Exhaust temp sensor. 6.6l. Position 5. 6.6L diesel, sensors, at muffler & pipe, posn 1, 2. Silverado, Sierra 2500 HD. Position 3. Silverado, Sierra 3500 HD. Helps provide accurate temperature detection
Heat and vibration resistant for operating efficiently
MSRP $77.28
$42.79
MSRP $77.28
$42.79
5
6
2024 GM - Upper Nox Sensor GM
GM Description: Silverado, Sierra 2500 HD. Diesel. Front. Silverado, Sierra 3500 HD.
MSRP $209.24
$112.20
MSRP $209.24
$112.20
7
2024 GM - Lower Nox Sensor GM
GM Description: Silverado, Sierra 2500 HD. Diesel. Rear. Silverado, Sierra 3500 HD.
MSRP $249.18
$133.62
MSRP $249.18
$133.62
8
MSRP $53.33
$29.53
No.
Part # / Description / Price
Price
8
2017-2024 GM - Egr Pipe GM
GM Description: Silverado, Sierra 2500 HD. To egr valve. Silverado, Sierra 3500 HD. 6.6L diesel, egr valve & related components, 2017-19. Sierra, silverado. 6.6l. Lower.
MSRP $166.98
$89.54
MSRP $166.98
$89.54
Related Parts
Part # / Description / Price
Price
2014-2025 GM - Vapor Canister Vent Valve GM
GM Description: Controls vapor flow from canister to engine
2011-2024 GM - Vapor Canister Vent Solenoid GM
GM Description: Without diesel. Location-Vapor Canister. Silverado, Sierra 3500 HD. Extended crew cab. Regular cab chassis. 137.0. , 3/4 ton. Controls fresh air flow to the canister
Sends fuel vapors to the engine for re-burn
Helps control fuel tank pressure
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $37.13
$21.29
MSRP $37.13
$21.29
2020-2024 GM - Evaporative Emission Canister GM
GM Description: Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. 6.6L gas. Helps reduce harmful pollutants from entering the atmosphere
Captures fuel vapors to be re-burned in the engine
Manufactured to GM OE specification for fit, form, and function
MSRP $311.22
$166.89
MSRP $311.22
$166.89
Auxiliary Vapor Canister GM
GM Description: This GM Genuine part is designed, engineered and tested to rigorous standards, and are backed by General Motors
MSRP $213.28
$114.37
MSRP $213.28
$114.37
Vent Control Solenoid GM
GM Description: Silverado, Sierra 2500 HD. Double cab. Crew cab. Long box. Silverado, Sierra 3500 HD.
MSRP $175.46
$94.09
MSRP $175.46
$94.09