94+ 2023 GMC Sierra 3500 HD Engine & Drivetrain SLT Parts - Page 3

SLT · Engine & Drivetrain (93 products)

Exact-fit parts for the 2023 GMC Sierra 3500 HD SLT.

Dayco

Part # 4PK888EE

Fits with Conditions

POLY RIB BELT, DAYCO

$19.93

Rhino-Rack

Part # T-FK1

Confirmed Fit

Rhino-Rack RLT600 Track Fitting Kit for Thule

$43.51

BD Diesel

Part # 1057932

Confirmed Fit

BD Diesel Throttle Sensitivity Booster - Dodge / Ford / Jeep

$281.55

aFe GM Diesel Trucks 20-25 V8-6.6L L5P POWER Street Series Transmission Pan Raw w/ Machined Fins

aFe

Part # 46-71380A

Confirmed Fit

aFe GM Diesel Trucks 20-25 V8-6.6L L5P POWER Street Series Transmission Pan Raw w/ Machined Fins

$463.81

aFe 2020 Chevrolet Silverado 2500 HD Rear Differential Cover Black ; Pro Series w/ Machined Fins

aFe

Part # 46-71260B

Confirmed Fit

aFe 2020 Chevrolet Silverado 2500 HD Rear Differential Cover Black ; Pro Series w/ Machined Fins

$394.21

Standard Motor Products

Part # S-1414

Fits with Conditions

CANISTER PURGE VALVE CONNECTOR

$33.51

Dorman

Part # 264-882

Fits with Conditions

Engine Oil Pan

$122.48

Banks Power

Part # 19288

Confirmed Fit

Banks Power 19+ Ram / Ram-Air Differential Cover Kit Black Ops, w/Hardware

$491.98

J&L 20-26 Chevy Silverado/GMC Sierra 2500/3500 6.6L Drivers Side Oil Separator 3.0 - Clear Anodi

J&L

Part # 3089D-C

Confirmed Fit

J&L 20-26 Chevy Silverado/GMC Sierra 2500/3500 6.6L Drivers Side Oil Separator 3.0 - Clear Anodi

$177.38

Wehrli

Part # WCF100459-GRY

Confirmed Fit

Wehrli 20-24 GM 2500/3500 HD Lower Splash Shield Kit - WCFab Grey

$331.78

aFe 14-24 GM Cars/Trucks/SUV SCORCHER High-Performance Ignition Coil - Set of 8

aFe

Part # 77-92003-MD

Confirmed Fit

aFe 14-24 GM Cars/Trucks/SUV SCORCHER High-Performance Ignition Coil - Set of 8

$606.35

Westin

Part # 27-2255

Confirmed Fit

Westin 2019 Chevrolet Silverado/Sierra 1500 Double/CC Non LD Running Board Mount Kit - Black

$148.80

Royal Purple

Part # 26512

Confirmed Fit

Royal Purple Synchromax Synthetic Manual Transmission Fluid (Canada) - 1 Quart

$107.94

Wehrli

Part # WCF100134-GW

Confirmed Fit

Wehrli 20-24 L5P Duramax WCFAB X PPE High Capacity Aluminum Oil Pan - Gloss White

$553.79

aFe Scorcher Blue Power Module 17-18 GM Diesel Trucks V8-6.6L (td) 5LP

aFe

Part # 77-84010

Confirmed Fit

aFe Scorcher Blue Power Module 17-18 GM Diesel Trucks V8-6.6L (td) 5LP

$607.74

ICON

Part # 89141532B

Confirmed Fit

ICON Alloys Lug Nut Kit Black - 14x1.5 - 32 Lug Nuts w/ Key

$77.34

Dayco

Part # 5060785

Fits with Conditions

POLY RIB BELT, DAYCO

$26.96

aFe Power Front/Rear Diff Cover Kit w/ Oil 20-25 GM Diesel Trucks V8 (AAM 9.25-12 & AAM 11.5-12-14)

aFe

Part # 46-7708AB

Confirmed Fit

aFe Power Front/Rear Diff Cover Kit w/ Oil 20-25 GM Diesel Trucks V8 (AAM 9.25-12 & AAM 11.5-12-14)

$982.75

Camburg

Part # CAM-010096

Confirmed Fit

Camburg UCA Uniball Bolt & Spacer Kit (001.097.194)

$191.80

Royal Purple

Part # 26320

Confirmed Fit

Royal Purple Max ATF Automatic Transmission Fluid (Canada) - 1 Quart

$90.18

Frequently Asked Questions

Do these parts fit my 2023 GMC Sierra 3500 HD SLT?

This page groups parts listed for the 2023 GMC Sierra 3500 HD SLT. Some products fit every trim, while others depend on submodel, engine, drivetrain, or brake package. Use your trim in My Garage or the product page fitment check to confirm exact fit.

What engine & drivetrain options are available for my 2023 GMC Sierra 3500 HD SLT?

We offer a wide selection of engine & drivetrain parts for the 2023 GMC Sierra 3500 HD SLT. This page narrows the catalog to the year, make, and model; use your trim on product pages to confirm exact fit when a part only fits certain submodels.

What brands make parts for the 2023 GMC Sierra 3500 HD SLT?

We carry parts from trusted brands including Wehrli, aFe, FTI Performance, Dayco, and Royal Purple, plus many more. Filter by brand to find your preferred manufacturer.

How fast do 2023 GMC Sierra 3500 HD SLT parts ship?

Most in-stock items ship within 1-2 business days. Shipping rates are calculated at checkout based on your location.

What warranty do your 2023 GMC Sierra 3500 HD SLT parts come with?

Warranty coverage varies by manufacturer but typically ranges from 1 year to lifetime. Each product page includes specific warranty information from the manufacturer.

2023 GMC Sierra 3500 HD(1,911 parts)

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Other GMC Sierra 3500 HD Years

2023 GMC Sierra 3500 HD(1,911 parts)

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Other GMC Sierra 3500 HD Years

SLT · Engine & Drivetrain (93 products)

POLY RIB BELT, DAYCO

Rhino-Rack RLT600 Track Fitting Kit for Thule

BD Diesel Throttle Sensitivity Booster - Dodge / Ford / Jeep

aFe GM Diesel Trucks 20-25 V8-6.6L L5P POWER Street Series Transmission Pan Raw w/ Machined Fins

aFe 2020 Chevrolet Silverado 2500 HD Rear Differential Cover Black ; Pro Series w/ Machined Fins

CANISTER PURGE VALVE CONNECTOR

Engine Oil Pan

Banks Power 19+ Ram / Ram-Air Differential Cover Kit Black Ops, w/Hardware

J&L 20-26 Chevy Silverado/GMC Sierra 2500/3500 6.6L Drivers Side Oil Separator 3.0 - Clear Anodi

Wehrli 20-24 GM 2500/3500 HD Lower Splash Shield Kit - WCFab Grey

aFe 14-24 GM Cars/Trucks/SUV SCORCHER High-Performance Ignition Coil - Set of 8

Westin 2019 Chevrolet Silverado/Sierra 1500 Double/CC Non LD Running Board Mount Kit - Black

Royal Purple Synchromax Synthetic Manual Transmission Fluid (Canada) - 1 Quart

Wehrli 20-24 L5P Duramax WCFAB X PPE High Capacity Aluminum Oil Pan - Gloss White

aFe Scorcher Blue Power Module 17-18 GM Diesel Trucks V8-6.6L (td) 5LP

ICON Alloys Lug Nut Kit Black - 14x1.5 - 32 Lug Nuts w/ Key

POLY RIB BELT, DAYCO

aFe Power Front/Rear Diff Cover Kit w/ Oil 20-25 GM Diesel Trucks V8 (AAM 9.25-12 & AAM 11.5-12-14)

Camburg UCA Uniball Bolt & Spacer Kit (001.097.194)

Royal Purple Max ATF Automatic Transmission Fluid (Canada) - 1 Quart

Frequently Asked Questions

Do these parts fit my 2023 GMC Sierra 3500 HD SLT?

What engine & drivetrain options are available for my 2023 GMC Sierra 3500 HD SLT?

What brands make parts for the 2023 GMC Sierra 3500 HD SLT?

How fast do 2023 GMC Sierra 3500 HD SLT parts ship?

What warranty do your 2023 GMC Sierra 3500 HD SLT parts come with?