102+ 2021 Chevrolet Tahoe Engine & Drivetrain High Country Parts

High Country · Engine & Drivetrain (93 products)

Exact-fit parts for the 2021 Chevrolet Tahoe High Country.

BD Diesel

Part # 1057932

Confirmed Fit

BD Diesel Throttle Sensitivity Booster - Dodge / Ford / Jeep

$281.55

Granatelli 06-08 Chevrolet Corvette 8Cyl 6.0L MPG Plus Ignition Wires

Granatelli Motor Sports

Part # 38-1811MPG

Confirmed Fit

Granatelli 06-08 Chevrolet Corvette 8Cyl 6.0L MPG Plus Ignition Wires

$202.14

Granatelli 13-20 GM LT1/LT4/LT5 Drive-By-Wire 103mm Throttle Body - Natural

Granatelli Motor Sports

Part # GMTBLT4

Confirmed Fit

Granatelli 13-20 GM LT1/LT4/LT5 Drive-By-Wire 103mm Throttle Body - Natural

$633.41

aFe Pro Series GMCH 9.5 Rear Diff Cover Raw w/ Machined Fins 19-20 GM Silverado/Sierra 1500

aFe

Part # 46-71140A

Confirmed Fit

aFe Pro Series GMCH 9.5 Rear Diff Cover Raw w/ Machined Fins 19-20 GM Silverado/Sierra 1500

$330.18

Granatelli 96-22 GM LS Tall Valve Cover w/Angled Coil Mounts - Black Wrinkle (Pair)

Granatelli Motor Sports

Part # 640362

Confirmed Fit

Granatelli 96-22 GM LS Tall Valve Cover w/Angled Coil Mounts - Black Wrinkle (Pair)

$229.43

Granatelli 96-22 GM LS Tall Valve Cover w/Integral Angled Coil Mounts - Red Wrinkle (Pair)

Granatelli Motor Sports

Part # 640363

Confirmed Fit

Granatelli 96-22 GM LS Tall Valve Cover w/Integral Angled Coil Mounts - Red Wrinkle (Pair)

$229.43

Mishimoto

Part # MMIG-LS3V-07

Confirmed Fit

Mishimoto 2007+ GM Gen V LS3 Style Engine Ignition Coil

$62.41

Sealed Power

Part # E-1023K

Fits with Conditions

Engine Piston Ring Set

$113.98

aFe 20-25 GM Trucks Engine Oil Pan - Raw w/ Machined Fins

aFe

Part # 46-71440A

Confirmed Fit

aFe 20-25 GM Trucks Engine Oil Pan - Raw w/ Machined Fins

$463.81

Granatelli 14-23 GM LT Malevolent Coil Packs - Blue (Set of 8)

Granatelli Motor Sports

Part # 28-0514-CPBM

Confirmed Fit

Granatelli 14-23 GM LT Malevolent Coil Packs - Blue (Set of 8)

$738.15

Granatelli 14-23 GM LT1 6.2L Hi-Perf Coil-Near-Plug Ignition Wire Connector Kit w/Red Jacket

Granatelli Motor Sports

Part # 28-1545HTR

Confirmed Fit

Granatelli 14-23 GM LT1 6.2L Hi-Perf Coil-Near-Plug Ignition Wire Connector Kit w/Red Jacket

$246.14

Granatelli 14-23 GM LT Malevolent Coil Packs - Black (Single)

Granatelli Motor Sports

Part # 28-0514-1M

Confirmed Fit

Granatelli 14-23 GM LT Malevolent Coil Packs - Black (Single)

$112.07

MAHLE Original 14-17 GM 6.2L VIN J&7 Cylinder Head Gasket

Victor Reinz

Part # 55332

Confirmed Fit

MAHLE Original 14-17 GM 6.2L VIN J&7 Cylinder Head Gasket

$71.51

Royal Purple

Part # 61320

Confirmed Fit

Royal Purple Max ATF Automatic Transmission Fluid - 6 Gallon Bag-In-Box

$279.99

aFe Scorcher HD Power Package 20-21 GM Duramax L6-3.0L (td) LM2

aFe

Part # 77-44014

Confirmed Fit

aFe Scorcher HD Power Package 20-21 GM Duramax L6-3.0L (td) LM2

$485.89

aFe 19-25 GM Trucks Front Diff Cover - Raw w/ Machined Fins

aFe

Part # 46-71430A

Confirmed Fit

aFe 19-25 GM Trucks Front Diff Cover - Raw w/ Machined Fins

$304.56

Granatelli 14-23 GM LT Malevolent Coil Packs - Red (Single)

Granatelli Motor Sports

Part # 28-0514-1RM

Confirmed Fit

Granatelli 14-23 GM LT Malevolent Coil Packs - Red (Single)

$112.07

J&L 19-26 Chevrolet Silverado/GMC Sierra 1500 5.3L V8 Driver Side Oil Separator 3.0 - Clear Anod

J&L

Part # 3086D-C

Confirmed Fit

J&L 19-26 Chevrolet Silverado/GMC Sierra 1500 5.3L V8 Driver Side Oil Separator 3.0 - Clear Anod

$177.38

Dayco

Part # 4PK888EE

Fits with Conditions

POLY RIB BELT, DAYCO

$19.93

Granatelli 13-20 GM LT1/LT4/LT5 Drive-By-Wire 112mm Throttle Body - Black

Granatelli Motor Sports

Part # GMTBLT112B

Confirmed Fit

Granatelli 13-20 GM LT1/LT4/LT5 Drive-By-Wire 112mm Throttle Body - Black

$862.84

Frequently Asked Questions

Do these parts fit my 2021 Chevrolet Tahoe High Country?

This page groups parts listed for the 2021 Chevrolet Tahoe High Country. 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 2021 Chevrolet Tahoe High Country?

We offer a wide selection of engine & drivetrain parts for the 2021 Chevrolet Tahoe High Country. 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 2021 Chevrolet Tahoe High Country?

We carry parts from trusted brands including Granatelli Motor Sports, aFe, Fel-Pro, Royal Purple, and J&L, plus many more. Filter by brand to find your preferred manufacturer.

How fast do 2021 Chevrolet Tahoe High Country 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 2021 Chevrolet Tahoe High Country 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.

2021 Chevrolet Tahoe(1,268 parts)

2021 Chevrolet Tahoe(1,268 parts)

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Other Chevrolet Tahoe Years

High Country · Engine & Drivetrain (93 products)

BD Diesel Throttle Sensitivity Booster - Dodge / Ford / Jeep

Granatelli 06-08 Chevrolet Corvette 8Cyl 6.0L MPG Plus Ignition Wires

Granatelli 13-20 GM LT1/LT4/LT5 Drive-By-Wire 103mm Throttle Body - Natural

aFe Pro Series GMCH 9.5 Rear Diff Cover Raw w/ Machined Fins 19-20 GM Silverado/Sierra 1500

Granatelli 96-22 GM LS Tall Valve Cover w/Angled Coil Mounts - Black Wrinkle (Pair)

Granatelli 96-22 GM LS Tall Valve Cover w/Integral Angled Coil Mounts - Red Wrinkle (Pair)

Mishimoto 2007+ GM Gen V LS3 Style Engine Ignition Coil

Engine Piston Ring Set

aFe 20-25 GM Trucks Engine Oil Pan - Raw w/ Machined Fins

Granatelli 14-23 GM LT Malevolent Coil Packs - Blue (Set of 8)

Granatelli 14-23 GM LT1 6.2L Hi-Perf Coil-Near-Plug Ignition Wire Connector Kit w/Red Jacket

Granatelli 14-23 GM LT Malevolent Coil Packs - Black (Single)

MAHLE Original 14-17 GM 6.2L VIN J&7 Cylinder Head Gasket

Royal Purple Max ATF Automatic Transmission Fluid - 6 Gallon Bag-In-Box

aFe Scorcher HD Power Package 20-21 GM Duramax L6-3.0L (td) LM2

aFe 19-25 GM Trucks Front Diff Cover - Raw w/ Machined Fins

Granatelli 14-23 GM LT Malevolent Coil Packs - Red (Single)

J&L 19-26 Chevrolet Silverado/GMC Sierra 1500 5.3L V8 Driver Side Oil Separator 3.0 - Clear Anod

POLY RIB BELT, DAYCO

Granatelli 13-20 GM LT1/LT4/LT5 Drive-By-Wire 112mm Throttle Body - Black

Frequently Asked Questions

Do these parts fit my 2021 Chevrolet Tahoe High Country?

What engine & drivetrain options are available for my 2021 Chevrolet Tahoe High Country?

What brands make parts for the 2021 Chevrolet Tahoe High Country?

How fast do 2021 Chevrolet Tahoe High Country parts ship?

What warranty do your 2021 Chevrolet Tahoe High Country parts come with?