61+ 1984 GMC Jimmy Mufflers & Resonators Sierra Classic Parts

Sierra Classic · Mufflers & Resonators (61 products)

Exact-fit parts for the 1984 GMC Jimmy Sierra Classic.

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 # 94016

Confirmed Fit

MagnaFlow Conv Univ 2.5 W/Air FED

$137.00

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

Fel-Pro

Part # 60083

Confirmed Fit

Fel-Pro Ford F-250 Super Duty Exhaust Pipe Flange Gasket

$2.00

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 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

Cometic Chevy Gen1 Small Block V8 .064in ArmorCore Exhaust Manifold Gasket Set-Brodix GB 2000 Heads

Cometic Gasket

Part # C5422-064

Confirmed Fit

Cometic Chevy Gen1 Small Block V8 .064in ArmorCore Exhaust Manifold Gasket Set-Brodix GB 2000 Heads

$30.81

Cometic Chevy Gen1 SB V8 .064in AM Exhaust Mani Gskt Set-1.615in x 1.500in D Ports-Brodix WP262 Head

Cometic Gasket

Part # C5315

Confirmed Fit

Cometic Chevy Gen1 SB V8 .064in AM Exhaust Mani Gskt Set-1.615in x 1.500in D Ports-Brodix WP262 Head

$45.34

Cometic Chevy Gen1 Small Block V8 .064in AM Exhaust Gskt Set-1.500in x 1.470in Ports-18 Degree Head

Cometic Gasket

Part # C5314-064

Confirmed Fit

Cometic Chevy Gen1 Small Block V8 .064in AM Exhaust Gskt Set-1.500in x 1.470in Ports-18 Degree Head

$45.34

Cometic Chevrolet Gen-1 Small Block V8 .064in ArmorCore Exhaust Manifold Gasket Set - 23 Degree Head

Cometic Gasket

Part # C5548-064

Confirmed Fit

Cometic Chevrolet Gen-1 Small Block V8 .064in ArmorCore Exhaust Manifold Gasket Set - 23 Degree Head

$32.31

Cometic Chevy Gen1 SB V8 .064in ArmorCore Exhaust Mani Gasket Set-1.810in Round Port

Cometic Gasket

Part # C5126-064

Confirmed Fit

Cometic Chevy Gen1 SB V8 .064in ArmorCore Exhaust Mani Gasket Set-1.810in Round Port

$45.34

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

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

Frequently Asked Questions

Do these parts fit my 1984 GMC Jimmy Sierra Classic?

This page groups parts listed for the 1984 GMC Jimmy 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 1984 GMC Jimmy Sierra Classic?

We offer a wide selection of mufflers & resonators parts for the 1984 GMC Jimmy 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 1984 GMC Jimmy Sierra Classic?

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

How fast do 1984 GMC Jimmy 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 1984 GMC Jimmy 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.

1984 GMC Jimmy(3,758 parts)

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Other GMC Jimmy Years

1984 GMC Jimmy(3,758 parts)

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Other GMC Jimmy Years

Sierra Classic · Mufflers & Resonators (61 products)

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 W/Air FED

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

Fel-Pro Ford F-250 Super Duty Exhaust Pipe Flange Gasket

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

Cometic Chevy Gen1 Small Block V8 .064in ArmorCore Exhaust Manifold Gasket Set-Brodix GB 2000 Heads

Cometic Chevy Gen1 SB V8 .064in AM Exhaust Mani Gskt Set-1.615in x 1.500in D Ports-Brodix WP262 Head

Cometic Chevy Gen1 Small Block V8 .064in AM Exhaust Gskt Set-1.500in x 1.470in Ports-18 Degree Head

Cometic Chevrolet Gen-1 Small Block V8 .064in ArmorCore Exhaust Manifold Gasket Set - 23 Degree Head

Cometic Chevy Gen1 SB V8 .064in ArmorCore Exhaust Mani Gasket Set-1.810in Round Port

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

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

Frequently Asked Questions

Do these parts fit my 1984 GMC Jimmy Sierra Classic?

What mufflers & resonators options are available for my 1984 GMC Jimmy Sierra Classic?

What brands make parts for the 1984 GMC Jimmy Sierra Classic?

How fast do 1984 GMC Jimmy Sierra Classic parts ship?

What warranty do your 1984 GMC Jimmy Sierra Classic parts come with?