67+ 1981 GMC K1500 Mufflers & Resonators Sierra Classic Parts - Page 2

Sierra Classic · Mufflers & Resonators (67 products)

Exact-fit parts for the 1981 GMC K1500 Sierra Classic.

Fel-Pro

Part # 9587

Confirmed Fit

Fel-Pro Chevrolet C10 Exhaust Pipe Flange Gasket

$2.24

Cometic Chevy Gen1 Small Block V8 .060in HTS Exhaust Mani Gasket Set-1.550in x 1.450in Square Ports

Cometic Gasket

Part # C15189HTS

Confirmed Fit

Cometic Chevy Gen1 Small Block V8 .060in HTS Exhaust Mani Gasket Set-1.550in x 1.450in Square Ports

$33.09

MAHLE Original Buick Century 80-77 Exhaust Gas Recirculation Valve Gasket

Victor Reinz

Part # G26748

Confirmed Fit

MAHLE Original Buick Century 80-77 Exhaust Gas Recirculation Valve Gasket

$15.67

Cometic Chevrolet Gen-1 Small Block V8 .064in ArmorCore Exhaust Manifold Gasket Set

Cometic Gasket

Part # C5539-064

Confirmed Fit

Cometic Chevrolet Gen-1 Small Block V8 .064in ArmorCore Exhaust Manifold Gasket Set

$36.20

Cometic Chevy Gen1 Small Block V8 .030in MLS Exhaust Mani Gskt Set-1.450in x 1.600in Rectangle Port

Cometic Gasket

Part # C5894-030

Confirmed Fit

Cometic Chevy Gen1 Small Block V8 .030in MLS Exhaust Mani Gskt Set-1.450in x 1.600in Rectangle Port

$52.20

Fel-Pro

Part # 60985

Confirmed Fit

Fel-Pro Chevrolet Camaro Exhaust Pipe Flange Gasket

$2.97

Cometic Chevy Gen1 Small Block V8 .060in HTS Exhaust Mani Gskt Set-1.710in x 1.550in Brodix D Ports

Cometic Gasket

Part # C15199

Confirmed Fit

Cometic Chevy Gen1 Small Block V8 .060in HTS Exhaust Mani Gskt Set-1.710in x 1.550in Brodix D Ports

$35.92

Cometic Chevy Gen-1 Small Block V8 .043in Copper Exhaust Manifold Gasket Set - 1.625in Round Ports

Cometic Gasket

Part # C5893C

Confirmed Fit

Cometic Chevy Gen-1 Small Block V8 .043in Copper Exhaust Manifold Gasket Set - 1.625in Round Ports

$53.34

Cometic GM Gen1 Small Block V8 .064in AM Exhaust Manifold Gasket Set-Brodix 12B Raised D Port Heads

Cometic Gasket

Part # C15603-064

Confirmed Fit

Cometic GM Gen1 Small Block V8 .064in AM Exhaust Manifold Gasket Set-Brodix 12B Raised D Port Heads

$41.48

Quiet-Flow SS Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)

Walker Exhaust

Part # 21910

Fits with Conditions

Quiet-Flow SS Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)

$77.11

Cometic Chevy Gen1 Small Block V8 .043in Copper Exhaust Mani Gskt Set-1.550in x 1.450in Square Ports

Cometic Gasket

Part # C15189C

Confirmed Fit

Cometic Chevy Gen1 Small Block V8 .043in Copper Exhaust Mani Gskt Set-1.550in x 1.450in Square Ports

$53.34

Cometic Chevy Gen1 SB V8 .064in AM Exhaust Mani Gasket Set-1.700in x 1.700in D Ports

Cometic Gasket

Part # C5424

Confirmed Fit

Cometic Chevy Gen1 SB V8 .064in AM Exhaust Mani Gasket Set-1.700in x 1.700in D Ports

$30.81

Cometic Chevy Gen1 Small Block V8 .060in HTS Exhaust Mani Gskt Set-1.450in x 1.480in Rectangle Port

Cometic Gasket

Part # C5892HTS

Confirmed Fit

Cometic Chevy Gen1 Small Block V8 .060in HTS Exhaust Mani Gskt Set-1.450in x 1.480in Rectangle Port

$36.28

Magnaflow

Part # 3391432

Confirmed Fit

MagnaFlow Conv DF 1994 GMA G3500 V6 4.3L

$1158.00

SoundFX Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)

Walker Exhaust

Part # 18274

Fits with Conditions

SoundFX Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)

$46.53

Cometic Chevy Gen1 SB V8 .064in ArmorCore Exhaust Mani Gasket Set-1.500in Round Port-23 Deg Head

Cometic Gasket

Part # C5549-064

Confirmed Fit

Cometic Chevy Gen1 SB V8 .064in ArmorCore Exhaust Mani Gasket Set-1.500in Round Port-23 Deg Head

$32.31

AP Exhaust

Part # 700051

Fits with Conditions

Direct Fit Muffler - MSL Maximum

$45.76

Cometic Chevrolet Gen-1 Small Block V8 .094in HTG Exhaust Manifold Gasket Set - 1.625in Round Ports

Cometic Gasket

Part # C5893HTG

Confirmed Fit

Cometic Chevrolet Gen-1 Small Block V8 .094in HTG Exhaust Manifold Gasket Set - 1.625in Round Ports

$40.69

Cometic GM Gen 1 Small Block 1.450 in x 1.480 in Port Exhaust Manifold Set

Cometic Gasket

Part # C5892-030

Confirmed Fit

Cometic GM Gen 1 Small Block 1.450 in x 1.480 in Port Exhaust Manifold Set

$51.05

Cometic Chevy Gen-I SB V8 .030in MLS Exhaust Mani Gasket Set-Brodix 13 Deg Head

Cometic Gasket

Part # C5039-030

Confirmed Fit

Cometic Chevy Gen-I SB V8 .030in MLS Exhaust Mani Gasket Set-Brodix 13 Deg Head

$47.90

Frequently Asked Questions

Do these parts fit my 1981 GMC K1500 Sierra Classic?

This page groups parts listed for the 1981 GMC K1500 Sierra Classic. 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 mufflers & resonators options are available for my 1981 GMC K1500 Sierra Classic?

We offer a wide selection of mufflers & resonators parts for the 1981 GMC K1500 Sierra Classic. 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 1981 GMC K1500 Sierra Classic?

We carry parts from trusted brands including Cometic Gasket, Fel-Pro, Magnaflow, Victor Reinz, and Walker Exhaust, plus many more. Filter by brand to find your preferred manufacturer.

How fast do 1981 GMC K1500 Sierra Classic 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 1981 GMC K1500 Sierra Classic 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.

1981 GMC K1500(3,993 parts)

1981 GMC K1500(3,993 parts)

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Other GMC K1500 Years

Sierra Classic · Mufflers & Resonators (67 products)

Fel-Pro Chevrolet C10 Exhaust Pipe Flange Gasket

Cometic Chevy Gen1 Small Block V8 .060in HTS Exhaust Mani Gasket Set-1.550in x 1.450in Square Ports

MAHLE Original Buick Century 80-77 Exhaust Gas Recirculation Valve Gasket

Cometic Chevrolet Gen-1 Small Block V8 .064in ArmorCore Exhaust Manifold Gasket Set

Cometic Chevy Gen1 Small Block V8 .030in MLS Exhaust Mani Gskt Set-1.450in x 1.600in Rectangle Port

Fel-Pro Chevrolet Camaro Exhaust Pipe Flange Gasket

Cometic Chevy Gen1 Small Block V8 .060in HTS Exhaust Mani Gskt Set-1.710in x 1.550in Brodix D Ports

Cometic Chevy Gen-1 Small Block V8 .043in Copper Exhaust Manifold Gasket Set - 1.625in Round Ports

Cometic GM Gen1 Small Block V8 .064in AM Exhaust Manifold Gasket Set-Brodix 12B Raised D Port Heads

Quiet-Flow SS Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)

Cometic Chevy Gen1 Small Block V8 .043in Copper Exhaust Mani Gskt Set-1.550in x 1.450in Square Ports

Cometic Chevy Gen1 SB V8 .064in AM Exhaust Mani Gasket Set-1.700in x 1.700in D Ports

Cometic Chevy Gen1 Small Block V8 .060in HTS Exhaust Mani Gskt Set-1.450in x 1.480in Rectangle Port

MagnaFlow Conv DF 1994 GMA G3500 V6 4.3L

SoundFX Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)

Cometic Chevy Gen1 SB V8 .064in ArmorCore Exhaust Mani Gasket Set-1.500in Round Port-23 Deg Head

Direct Fit Muffler - MSL Maximum

Cometic Chevrolet Gen-1 Small Block V8 .094in HTG Exhaust Manifold Gasket Set - 1.625in Round Ports

Cometic GM Gen 1 Small Block 1.450 in x 1.480 in Port Exhaust Manifold Set

Cometic Chevy Gen-I SB V8 .030in MLS Exhaust Mani Gasket Set-Brodix 13 Deg Head

Frequently Asked Questions

Do these parts fit my 1981 GMC K1500 Sierra Classic?

What mufflers & resonators options are available for my 1981 GMC K1500 Sierra Classic?

What brands make parts for the 1981 GMC K1500 Sierra Classic?

How fast do 1981 GMC K1500 Sierra Classic parts ship?

What warranty do your 1981 GMC K1500 Sierra Classic parts come with?