95+ 1980 GMC K1500 Mufflers & Resonators Sierra Classic Parts

Sierra Classic · Mufflers & Resonators (95 products)

Exact-fit parts for the 1980 GMC K1500 Sierra Classic.

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .043in Copper Exhaust Manifold Gasket

Cometic Gasket

Part # C5897C

Confirmed Fit

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .043in Copper Exhaust Manifold Gasket

$53.34

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 Mark-IV/GM Gen-V/VI BB V8 .030in. MLS Exh Hdr Gasket w/ AFR BBC Magnum 24 Degree Heads

Cometic Gasket

Part # C15443-030

Confirmed Fit

Cometic Chevy Mark-IV/GM Gen-V/VI BB V8 .030in. MLS Exh Hdr Gasket w/ AFR BBC Magnum 24 Degree Heads

$27.79

Cometic Chevy Gen1 SB V8 .030in MLS Exhaust Mani Gskt Set-1.780in x 1.700in D Ports-Brodix 12B Head

Cometic Gasket

Part # C5927-030

Confirmed Fit

Cometic Chevy Gen1 SB V8 .030in MLS Exhaust Mani Gskt Set-1.780in x 1.700in D Ports-Brodix 12B Head

$53.34

Cometic Chevy Gen1 Small Block V8 .094in HTG Exhaust Mani Gasket Set-1.480in x 1.450in Square Ports

Cometic Gasket

Part # C15190HTG

Confirmed Fit

Cometic Chevy Gen1 Small Block V8 .094in HTG Exhaust Mani Gasket Set-1.480in x 1.450in Square Ports

$41.37

Cometic Chevy Gen1 Small Block V8 .064in AM Exhaust Manifold Gskt Set-1.480in x 1.450in Square Ports

Cometic Gasket

Part # C15190AM

Confirmed Fit

Cometic Chevy Gen1 Small Block V8 .064in AM Exhaust Manifold Gskt Set-1.480in x 1.450in Square Ports

$45.76

Magnaflow

Part # 93506

Confirmed Fit

MagnaFlow Conv Univ 2.5 FED

$177.00

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .094in HTG Exhaust Manifold Gasket Set

Cometic Gasket

Part # C5897HTG

Confirmed Fit

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .094in HTG Exhaust Manifold Gasket Set

$39.24

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .060in HTS Exhaust Manifold Gasket Set

Cometic Gasket

Part # C5896HTS

Confirmed Fit

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .060in HTS Exhaust Manifold Gasket Set

$32.70

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .092in MLS Exhaust Manifold Gasket Set

Cometic Gasket

Part # C5897-092

Confirmed Fit

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .092in MLS Exhaust Manifold Gasket Set

$87.22

Fel-Pro

Part # ES75102

Confirmed Fit

Fel-Pro Chevrolet K1500 ES 75102 Exhaust Flange Stud and Nut

$29.79

Cometic Chevy Gen1 Small Block V8 .064in ArmorCore Exhaust Manifold Gskt Set-Brodix Race-Rite Heads

Cometic Gasket

Part # C5417-064

Confirmed Fit

Cometic Chevy Gen1 Small Block V8 .064in ArmorCore Exhaust Manifold Gskt Set-Brodix Race-Rite Heads

$30.81

Cometic Chevy Gen1 Small Block V8 .043in Copper Exhaust Mani Gskt Set-1.480in x 1.450in Square Ports

Cometic Gasket

Part # C15190C

Confirmed Fit

Cometic Chevy Gen1 Small Block V8 .043in Copper Exhaust Mani Gskt Set-1.480in x 1.450in Square Ports

$53.34

Cometic Chevy Gen1 Small Block V8 .030in MLS Exhaust Mani Gasket Set

Cometic Gasket

Part # C5928-030

Confirmed Fit

Cometic Chevy Gen1 Small Block V8 .030in MLS Exhaust Mani Gasket Set

$53.34

MAHLE Original Ac Shelby Cobra 73-66 Exhaust Pipe Packing Ring

Victor Reinz

Part # F17250

Confirmed Fit

MAHLE Original Ac Shelby Cobra 73-66 Exhaust Pipe Packing Ring

$16.32

Magnaflow

Part # 94016

Confirmed Fit

MagnaFlow Conv Univ 2.5 W/Air FED

$137.00

SoundFX Universal Universal Exhaust Muffler 2" Inlet (OD) 2.5" Outlet (ID)

Walker Exhaust

Part # 18171

Fits with Conditions

SoundFX Universal Universal Exhaust Muffler 2" Inlet (OD) 2.5" Outlet (ID)

$41.55

Cometic Chevy Gen1 Small Block V8 .060in HTS Exhaust Manifold Gasket Set-1.55in x 1.55in Square Port

Cometic Gasket

Part # C15611-060

Confirmed Fit

Cometic Chevy Gen1 Small Block V8 .060in HTS Exhaust Manifold Gasket Set-1.55in x 1.55in Square Port

$36.26

Cometic GM BBC 1.850 inch X 1.900 inch Port .30 inch MLS Exhaust Gasket

Cometic Gasket

Part # C5897-030

Confirmed Fit

Cometic GM BBC 1.850 inch X 1.900 inch Port .30 inch MLS Exhaust Gasket

$54.48

Cometic Chevy Gen-I Small Block V8 .043in Copper Exhaust Manifold Gasket Set - 1.500in Round Port

Cometic Gasket

Part # C15305C

Confirmed Fit

Cometic Chevy Gen-I Small Block V8 .043in Copper Exhaust Manifold Gasket Set - 1.500in Round Port

$53.38

Frequently Asked Questions

Do these parts fit my 1980 GMC K1500 Sierra Classic?

This page groups parts listed for the 1980 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 1980 GMC K1500 Sierra Classic?

We offer a wide selection of mufflers & resonators parts for the 1980 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 1980 GMC K1500 Sierra Classic?

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

How fast do 1980 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 1980 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.

1980 GMC K1500(5,332 parts)

1980 GMC K1500(5,332 parts)

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Other GMC K1500 Years

Sierra Classic · Mufflers & Resonators (95 products)

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .043in Copper Exhaust Manifold Gasket

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

Cometic Chevy Mark-IV/GM Gen-V/VI BB V8 .030in. MLS Exh Hdr Gasket w/ AFR BBC Magnum 24 Degree Heads

Cometic Chevy Gen1 SB V8 .030in MLS Exhaust Mani Gskt Set-1.780in x 1.700in D Ports-Brodix 12B Head

Cometic Chevy Gen1 Small Block V8 .094in HTG Exhaust Mani Gasket Set-1.480in x 1.450in Square Ports

Cometic Chevy Gen1 Small Block V8 .064in AM Exhaust Manifold Gskt Set-1.480in x 1.450in Square Ports

MagnaFlow Conv Univ 2.5 FED

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .094in HTG Exhaust Manifold Gasket Set

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .060in HTS Exhaust Manifold Gasket Set

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .092in MLS Exhaust Manifold Gasket Set

Fel-Pro Chevrolet K1500 ES 75102 Exhaust Flange Stud and Nut

Cometic Chevy Gen1 Small Block V8 .064in ArmorCore Exhaust Manifold Gskt Set-Brodix Race-Rite Heads

Cometic Chevy Gen1 Small Block V8 .043in Copper Exhaust Mani Gskt Set-1.480in x 1.450in Square Ports

Cometic Chevy Gen1 Small Block V8 .030in MLS Exhaust Mani Gasket Set

MAHLE Original Ac Shelby Cobra 73-66 Exhaust Pipe Packing Ring

MagnaFlow Conv Univ 2.5 W/Air FED

SoundFX Universal Universal Exhaust Muffler 2" Inlet (OD) 2.5" Outlet (ID)

Cometic Chevy Gen1 Small Block V8 .060in HTS Exhaust Manifold Gasket Set-1.55in x 1.55in Square Port

Cometic GM BBC 1.850 inch X 1.900 inch Port .30 inch MLS Exhaust Gasket

Cometic Chevy Gen-I Small Block V8 .043in Copper Exhaust Manifold Gasket Set - 1.500in Round Port

Frequently Asked Questions

Do these parts fit my 1980 GMC K1500 Sierra Classic?

What mufflers & resonators options are available for my 1980 GMC K1500 Sierra Classic?

What brands make parts for the 1980 GMC K1500 Sierra Classic?

How fast do 1980 GMC K1500 Sierra Classic parts ship?

What warranty do your 1980 GMC K1500 Sierra Classic parts come with?