Diesel Aftertreatment System for 2020 GMC Sierra 3500 HD
No.
Part # / Description / Price
Price
1
Nitrogen Oxide Catalytic Converter 1 
GM
GM Description: Silverado, Sierra 2500 HD. Diesel. Nox converter. Silverado, Sierra 3500 HD. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
Collision parts are designed to help promote proper and safe repair
MSRP $1,433.28
$971.34
MSRP $1,433.28
$971.34
2
Exhaust System Seal GM
GM Description: GM Genuine Parts Exhaust Seal Rings 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 $10.71
$7.94
MSRP $10.71
$7.94
3
Exhaust Front Bracket GM
GM Description: 6.6L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $9.52
$7.06
MSRP $9.52
$7.06
4
Exhaust System Hanger Insulator GM
GM Description: 2018-20, 3 hole. Single exhaust, front. 6.6L diesel, 3-hole. Dual exhaust, front. 2.7L, front. 4.3L, front. 3.6L 2017-21. front. 2.8 turbo diesel rear section. Helps secure and support your vehicle's exhaust pipe to the underside of the vehicle
Helps prevent excessive vibration and noise from entering the interior cabin
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $31.32
$22.91
MSRP $31.32
$22.91
5
Diesel Particulate Filter 1 GM
GM Description: Silverado, Sierra 2500 HD. Short box. Silverado, Sierra 3500 HD. 6.6L diesel, crew cab, 6.9 ft box.
$1,242.67
$1,242.67
5
Exhaust Particulate Filter with Exhaust Pipe 1 GM
GM Description: Silverado, Sierra 2500 HD. Long box. Silverado, Sierra 3500 HD. 6.6L diesel, crew cab, 8 ft box.
$1,061.73
$1,061.73
5
F Filter 1 GM
GM Description: Sierra, silverado. Regular cab. 6.6L diesel, double cab, 8 ft box. Code-aaf4.
$2,248.56
$2,248.56
5
$1,984.92
5
F Filter 1 GM
GM Description: Sierra, silverado. Double cab. Long wheel base. 6.6L diesel, crew cab, 6.6 ft box. Code-aaf5.
$1,938.12
$1,938.12
5
$2,225.30
5
$1,949.26
6
MSRP $12.97
$9.60
7
Muffler & Pipe Insulator GM
GM Notes: PARTS: Part included with muffler & pipe.
Description: 6.6L diesel, 3-hole, short.
MSRP $17.68
$12.94
MSRP $17.68
$12.94
8
Insulator-Exh Muff Hngr GM
GM Description: Helps secure and support your vehicle's exhaust pipe to the underside of the vehicle
Helps prevent excessive vibration and noise from entering the interior cabin
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Collision parts are designed to help promote proper and safe repair
MSRP $31.46
$23.02
MSRP $31.46
$23.02
1 This price excludes a refundable manufacturer's core charge. Add the part to your cart to see the core charge.
No.
Part # / Description / Price
Price
1
Emission Reduction Fluid Tank GM
GM Description: GM Genuine Parts Diesel Exhaust Fluid (DEF) Tanks 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 $868.57
$566.63
MSRP $868.57
$566.63
2
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
$5.51
MSRP $7.43
$5.51
3
MSRP $55.12
$32.92
4
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
$15.39
MSRP $25.24
$15.39
5
MSRP $215.58
$125.52
6
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
$19.01
MSRP $25.98
$19.01
7
MSRP $98.18
$69.48
8
Emission Reduction Fluid Injector GM
GM Description: 6.6L diesel, emission reduction system. Emissions reductant. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $246.48
$143.51
MSRP $246.48
$143.51
9
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
$2.84
MSRP $3.83
$2.84
10
MSRP $134.02
$79.04
11
Reductant Control Module GM
GM Description: 6.6L diesel, emission reduction system. Emission reduction level. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. 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 $199.28
$116.03
MSRP $199.28
$116.03
12
MSRP $112.74
$66.49
13
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
$70.05
MSRP $118.78
$70.05
13
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
$84.03
MSRP $142.48
$84.03
14
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
$16.21
MSRP $26.58
$16.21
No.
Part # / Description / Price
Price
2
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
$47.05
MSRP $78.78
$47.05
3
Exhaust Temperature Sensor GM
GM Description: Helps provide accurate temperature detection. Heat and vibration resistant for operating efficiently.
MSRP $77.28
$46.16
MSRP $77.28
$46.16
5
Exhaust Temperature Sensor GM
GM Description: 6.6L diesel, egr valve & related components, 2017-19, upper, front. Exhaust temp sensor. 6.6l. Position 1. Silverado, Sierra 2500 HD. 6.6L diesel, sensors, at muffler & pipe, posn 3. Silverado, Sierra 3500 HD. 6.6L diesel, sensors, at converter. Helps provide accurate temperature detection
Heat and vibration resistant for operating efficiently
MSRP $82.42
$48.61
MSRP $82.42
$48.61
6
Nitrogen Oxides Sensor GM
GM Description: 6.6L diesel, sensors. Detects the nitrogen oxide content of the exhaust to help optimize emissions
Manufactured to GM OE specification for fit, form, and function
MSRP $326.22
$189.13
MSRP $326.22
$189.13
7
Nitrogen Oxide Sensor GM
GM Description: Silverado, Sierra 2500 HD. Diesel. Rear. Silverado, Sierra 3500 HD. NOX Sensor.
MSRP $321.30
$186.27
MSRP $321.30
$186.27
8
Intake Air Pressure and Temperature Sensor GM
GM Description: GM Genuine Parts Air Charge Temperature Sensors Keepers 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 or validated by General Motors for GM vehicles.
MSRP $53.33
$30.26
MSRP $53.33
$30.26
Related Parts
Part # / Description / Price
Price
Injector GM
GM Description: Diesel fluid injector. Silverado, Sierra 2500 HD. Without chassis cab. Silverado, Sierra 3500 HD. Express 2500. 2.8l diesel. Indirect injector. Express 3500. 2.8l diesel. Savana 2500. 2.8l diesel. Savana 3500. 2.8l diesel.
MSRP $417.84
$242.24
MSRP $417.84
$242.24
Injector GM
GM Description: Diesel fluid injector. Silverado, Sierra 2500 HD. With chassis cab. Silverado, Sierra 3500 HD.
MSRP $452.70
$262.45
MSRP $452.70
$262.45
$1,597.46
F (S)Filter 1 GM
GM Description: Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. 6.6L diesel, regular cab.
$1,575.30
$1,575.30
F (S)Filter 1 GM
GM Description: Silverado, Sierra 2500 HD. Short box. Silverado, Sierra 3500 HD. 6.6L diesel, double cab, 6.9 ft box.
$1,596.28
$1,596.28
$1,629.69
Diesel Particulate Filter 1 GM
GM Description: Silverado, Sierra 3500 HD. Regular cab chassis. 170.8.
$1,672.17
$1,672.17
Diesel Particulate Filter 1 GM
GM Description: Silverado, Sierra 2500 HD. Long box. Silverado, Sierra 3500 HD. 6.6L diesel, double cab.
$1,394.33
$1,394.33
1 This price excludes a refundable manufacturer's core charge. Add the part to your cart to see the core charge.