Search Bar

Search by Part Number, Part Name, or Vehicle

My Garage
My Account
Cart

OE Parts
Body & Mirrors
Chassis & Brakes
Engine & Drivetrain
Electrical & Lighting

Help Center

< Back ×

Hello
Login or Register

Quick Links
Live Chat
Track Order
RMA
Help Center
Contact Us

Shop OE Parts
Shop By Category
Body & Mirrors
Chassis & Brakes
Engine & Drivetrain
Electrical & Lighting

Home>Sierra 2500 HD>2021>Engine & Drivetrain>Exhaust Manifolds, Pipes, Mufflers & Components>Exhaust Heat Shield

2021 GMC Sierra 2500 HD Exhaust Heat Shield

My Vehicle Change Vehicle

2021 GMC Sierra 2500 HD

Change Vehicle

Vehicle Options

We need more information about your vehicle to make a correct determination of fitment

< Back to View All

Exhaust Manifolds, Pipes & Mufflers

Department
- OE
Prices
- $29.99 and under
- $30 to $49.99
- $50 to $99.99
- $100 and over

25 Products found

Sort by:

Recommended

Filter Results

Sort

View by

View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 12690817
$50.06 MSRP: ~~$75.52~~
You Save: $25.46 (34%)
Product Specifications
Notes: 6.6 Liter Gas; Silverado, Sierra 2500 Hd; Gas; Right
Location: Passenger Side
Other Names: Heat Shield
Item Dimensions: 19.9 x 9.2 x 3.5 inches
Fitment Type: Direct Replacement
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 84948480
$63.80 MSRP: ~~$96.25~~
You Save: $32.45 (34%)
Product Specifications
Notes: 6.6 Liter Diesel, Emission Reduction System
Other Names: Heat Shield
Fitment Type: Direct Replacement
Replaces: 84350219
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 12680294
$39.10 MSRP: ~~$58.98~~
You Save: $19.88 (34%)
Product Specifications
Notes: Silverado, Sierra 2500 Hd; Diesel; Right; Rear; 6.6 Liter Diesel, Passenger Side, Rear
Other Names: Heat Shield
Item Dimensions: 11.5 x 5.8 x 4.6 inches
Item Weight: 1.90 Pounds
Fitment Type: Direct Replacement
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 12680293
$45.69 MSRP: ~~$68.92~~
You Save: $23.23 (34%)
Product Specifications
Other Names: Heat Shield
Item Dimensions: 18.0 x 4.8 x 4.5 inches
Item Weight: 2.10 Pounds
Replaced by: 12692265
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 12680298
$25.90 MSRP: ~~$39.07~~
You Save: $13.17 (34%)
Product Specifications
Notes: 6.6 Liter Diesel, Turbo Exhaust Inlet, Inlet Pipe
Location: Driver Side
Other Names: Heat Shield
Item Dimensions: 18.0 x 5.5 x 3.5 inches
Item Weight: 2.00 Pounds
Fitment Type: Direct Replacement
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 12692265
$45.69 MSRP: ~~$68.92~~
You Save: $23.23 (34%)
Product Specifications
Notes: Silverado, Sierra 2500 Hd; Diesel; Left; 6.6 Liter Diesel, Driver Side
Other Names: Heat Shield
Fitment Type: Direct Replacement
Replaces: 12680293
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 12705658
$35.31 MSRP: ~~$56.07~~
You Save: $20.76 (38%)
Product Specifications
Notes: 6.6 Liter Diesel, Turbo Assembly
Location: Passenger Side
Other Names: Heat Shield
Fitment Type: Direct Replacement
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 84525244
$17.80 MSRP: ~~$26.82~~
You Save: $9.02 (34%)
Product Specifications
Notes: 6.6 Liter Gas, Front, #2
Other Names: Heat Shield
Item Dimensions: 20.3 x 13.1 x 4.6 inches
Fitment Type: Direct Replacement
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 84625004
$37.80 MSRP: ~~$57.03~~
You Save: $19.23 (34%)
Product Specifications
Notes: 6.6 Liter Gas, Rear, #1, 8 Ft Box; 6.6 Liter Diesel, Rear, #1, 8 Ft Box
Other Names: Heat Shield
Fitment Type: Direct Replacement
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 84523941
$6.57 MSRP: ~~$9.90~~
You Save: $3.33 (34%)
Product Specifications
Other Names: Heat Shield
Item Dimensions: 42.2 x 14.4 x 2.4 inches
Fitment Type: Direct Replacement
Replaced by: 84630084
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 12645915
$5.30 MSRP: ~~$8.41~~
You Save: $3.11 (37%)
Product Specifications
Notes: 6.6 Liter Diesel, Turbo Exhaust Inlet, Adapter
Other Names: Heat Shield
Item Dimensions: 10.2 x 7.3 x 1.4 inches
Item Weight: 0.80 Pounds
Fitment Type: Direct Replacement
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 84523939
$13.18 MSRP: ~~$20.71~~
You Save: $7.53 (37%)
Product Specifications
Notes: 6.6 Liter Gas, Front, #1; 6.6 Liter Diesel, Front, #2
Other Names: Heat Shield
Item Dimensions: 44.3 x 10.2 x 3.6 inches
Fitment Type: Direct Replacement
Replaced by: 84630082
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 12680295
$10.84 MSRP: ~~$16.33~~
You Save: $5.49 (34%)
Product Specifications
Notes: Silverado, Sierra 2500 Hd; Diesel; Right; Front; 6.6 Liter Diesel, Passenger Side, Front
Other Names: Heat Shield
Item Dimensions: 9.9 x 6.3 x 3.2 inches
Item Weight: 1.80 Pounds
Fitment Type: Direct Replacement
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 12680278
$10.71 MSRP: ~~$16.13~~
You Save: $5.42 (34%)
Product Specifications
Notes: 6.6 Liter Diesel, Turbo Exhaust Outlet
Other Names: Heat Shield
Item Dimensions: 9.1 x 9.0 x 1.9 inches
Item Weight: 1.90 Pounds
Fitment Type: Direct Replacement
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 12680299
$18.62 MSRP: ~~$28.06~~
You Save: $9.44 (34%)
Product Specifications
Notes: 6.6 Liter Diesel, Turbo Exhaust Inlet, Inlet Pipe
Location: Passenger Side
Other Names: Heat Shield
Item Dimensions: 11.3 x 4.0 x 3.3 inches
Item Weight: 1.70 Pounds
Fitment Type: Direct Replacement
Replaced by: 12705657
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 12705659
$30.29 MSRP: ~~$48.11~~
You Save: $17.82 (38%)
Product Specifications
Notes: 6.6 Liter Diesel, Turbo Assembly
Location: Driver Side
Other Names: Heat Shield
Fitment Type: Direct Replacement
Replaces: 12680344
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 84630083
$6.21 MSRP: ~~$9.36~~
You Save: $3.15 (34%)
Product Specifications
Notes: 6.6 Liter Gas, Center, Regular Cab; 6.6 Liter Diesel, Center, Regular Cab
Other Names: Heat Shield
Fitment Type: Direct Replacement
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | Base, Pro, SLE | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 84619049
$21.98 MSRP: ~~$33.17~~
You Save: $11.19 (34%)
Product Specifications
Notes: 6.6 Liter Gas, Rear, #2; 6.6 Liter Diesel, Rear, #2; 5th Wheel Package
Other Names: Heat Shield
Fitment Type: Direct Replacement
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 12677415
$17.10 MSRP: ~~$25.77~~
You Save: $8.67 (34%)
Product Specifications
Notes: 6.6 Liter Gas; Silverado, Sierra 2500 Hd; Gas; Left
Location: Driver Side
Other Names: Heat Shield
Fitment Type: Direct Replacement
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 23445324
$23.38 MSRP: ~~$36.78~~
You Save: $13.40 (37%)
Product Specifications
Notes: 6.6 Liter Gas, Rear, #1, 6.9 Ft Box; 6.6 Liter Diesel, Rear, #1, 6.9 Ft Box
Other Names: Heat Shield
Item Dimensions: 19.3 x 15.1 x 2.0 inches
Item Weight: 3.20 Pounds
Fitment Type: Direct Replacement
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Converter Shield
PartNumber: 84683020
$12.30 MSRP: ~~$18.53~~
You Save: $6.23 (34%)
Product Specifications
Notes: 6.6 Liter Gas
Location: Passenger Side
Other Names: Converter Shield
Fitment Type: Direct Replacement
Replaces: 84180518
Part Description: 2021 GMC Sierra 2500 HD Converter Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Converter Shield
PartNumber: 84683021
$10.34 MSRP: ~~$15.58~~
You Save: $5.24 (34%)
Product Specifications
Notes: 6.6 Liter Gas
Location: Driver Side
Other Names: Converter Shield
Replaces: 84180517
Part Description: 2021 GMC Sierra 2500 HD Converter Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 84630085
$9.93 MSRP: ~~$14.96~~
You Save: $5.03 (34%)
Product Specifications
Notes: 6.6 Liter Gas, Center, Double Cab; 6.6 Liter Diesel, Center, Double Cab
Other Names: Heat Shield
Fitment Type: Direct Replacement
Replaces: 84523942
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | Base, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 84180519
$6.21 MSRP: ~~$9.36~~
You Save: $3.15 (34%)
Product Specifications
Notes: 6.6 Liter Diesel, Front, #1
Other Names: Heat Shield
Fitment Type: Direct Replacement
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Heat Shield
PartNumber: 84237222
$6.05 MSRP: ~~$9.12~~
You Save: $3.07 (34%)
Product Specifications
Notes: 6.6 Liter Gas, Front, #3
Other Names: Heat Shield
Fitment Type: Direct Replacement
Part Description: 2021 GMC Sierra 2500 HD Heat Shield
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS

Information

About Us
Help Center
VIN Lookup
Warranty

Customer Service

My Account
Track Order
Shipping Policy
Return Policy

Contact Us

Email Us
Live Chat
1-888-220-8330

© 2006-2025, AutoPartsPrime.com by AutoPartsPrime.com, Inc.

Terms of Use | Privacy Policy | Site Map