42+ 1974 GMC C15/C1500 Suburban Mufflers & Resonators Parts

Mufflers & Resonators (42 products)

Cometic Chevy Mark-IV GM Gen-V/VI Big Block V8 .030in MLS Exhaust Mani Gasket Set-2.015in Round Port

Cometic Gasket

Part # C5349-030

Fits All Trims

Cometic Chevy Mark-IV GM Gen-V/VI Big Block V8 .030in MLS Exhaust Mani Gasket Set-2.015in Round Port

$54.48

Cometic Chevy Mark-IV-GM Gen-V/VI Big Block V8 .030in MLS Exhaust Mani Gskt Set-2.130in Round Ports

Cometic Gasket

Part # C5996-030

Fits All Trims

Cometic Chevy Mark-IV-GM Gen-V/VI Big Block V8 .030in MLS Exhaust Mani Gskt Set-2.130in Round Ports

$54.48

Quiet-Flow Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2" Outlet (OD)

Walker Exhaust

Part # 21784

Fits All Trims

Quiet-Flow Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2" Outlet (OD)

$55.69

Cometic GM BBC 2.250in Round Port - 030in MLS Exhaust Gasket

Cometic Gasket

Part # C5251-030

Fits All Trims

Cometic GM BBC 2.250in Round Port - 030in MLS Exhaust Gasket

$54.48

Fel-Pro

Part # 9672

Fits All Trims

Fel-Pro Chevrolet Camaro 9672 Exhaust Pipe Flange Gasket

$8.67

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

Walker Exhaust

Part # 18293

Fits All Trims

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

$41.09

MAHLE Original Chevrolet 3A 59 Exhaust Pipe Flange Gasket

Victor Reinz

Part # F7135

Fits All Trims

MAHLE Original Chevrolet 3A 59 Exhaust Pipe Flange Gasket

$17.09

Cometic Chevy Mark-IV BB V8 .064in ArmorCore Exhaust Mani Gasket Set

Cometic Gasket

Part # C5429-064

Fits All Trims

Cometic Chevy Mark-IV BB V8 .064in ArmorCore Exhaust Mani Gasket Set

$30.81

Cometic Chevy Mark-IV BB V8 .064in ArmorCore Exhaust Mani Gskt Set-Brodix Big Duke/Head Hunter Heads

Cometic Gasket

Part # C5418-064

Fits All Trims

Cometic Chevy Mark-IV BB V8 .064in ArmorCore Exhaust Mani Gskt Set-Brodix Big Duke/Head Hunter Heads

$30.81

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

Cometic Gasket

Part # C5892-030

Fits All Trims

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

$51.05

Fel-Pro

Part # 9587

Fits All Trims

Fel-Pro Chevrolet C10 Exhaust Pipe Flange Gasket

$2.24

Cometic Chevy Gen-4 Big Block V8 .060in HTS Exhaust Manifold Gasket - 2.250in Round Port - 20 Pack

Cometic Gasket

Part # CP5251

Fits All Trims

Cometic Chevy Gen-4 Big Block V8 .060in HTS Exhaust Manifold Gasket - 2.250in Round Port - 20 Pack

$210.88

MAHLE Original Checker Marathon 69-65 Exhaust Pipe Packing Ring

Victor Reinz

Part # F7139

Fits All Trims

MAHLE Original Checker Marathon 69-65 Exhaust Pipe Packing Ring

$15.27

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

Cometic Gasket

Part # C5896HTS

Fits All Trims

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

$32.70

Cometic Gasket

Part # C5897HTS

Fits All Trims

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

$34.76

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .064in AM Exhaust Manifold Gasket Set

Cometic Gasket

Part # C5348

Fits All Trims

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .064in AM Exhaust Manifold Gasket Set

$46.58

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

Cometic Gasket

Part # C5896HTG

Fits All Trims

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

$38.12

MAHLE Original Buick Apollo 75-73 Intake To Exhaust Hot Spot

Victor Reinz

Part # B7354

Fits All Trims

MAHLE Original Buick Apollo 75-73 Intake To Exhaust Hot Spot

$15.73

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

Fits All Trims

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 Mark-IV GM Gen-V/VI Big Block V8 .051in MLS Exhaust Mani Gasket Set-2.265in Round Port

Cometic Gasket

Part # C5251-051

Fits All Trims

Cometic Chevy Mark-IV GM Gen-V/VI Big Block V8 .051in MLS Exhaust Mani Gasket Set-2.265in Round Port

$54.48

Frequently Asked Questions

Do these parts fit my 1974 GMC C15/C1500 Suburban?

This page groups parts listed for the 1974 GMC C15/C1500 Suburban. 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 1974 GMC C15/C1500 Suburban?

We offer a wide selection of mufflers & resonators parts for the 1974 GMC C15/C1500 Suburban. 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 1974 GMC C15/C1500 Suburban?

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

How fast do 1974 GMC C15/C1500 Suburban 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 1974 GMC C15/C1500 Suburban 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.

1974 GMC C15/C1500 Suburban(2,685 parts)

1974 GMC C15/C1500 Suburban(2,685 parts)

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Other GMC C15/C1500 Suburban Years

Mufflers & Resonators (42 products)

Cometic Chevy Mark-IV GM Gen-V/VI Big Block V8 .030in MLS Exhaust Mani Gasket Set-2.015in Round Port

Cometic Chevy Mark-IV-GM Gen-V/VI Big Block V8 .030in MLS Exhaust Mani Gskt Set-2.130in Round Ports

Quiet-Flow Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2" Outlet (OD)

Cometic GM BBC 2.250in Round Port - 030in MLS Exhaust Gasket

Fel-Pro Chevrolet Camaro 9672 Exhaust Pipe Flange Gasket

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

MAHLE Original Chevrolet 3A 59 Exhaust Pipe Flange Gasket

Cometic Chevy Mark-IV BB V8 .064in ArmorCore Exhaust Mani Gasket Set

Cometic Chevy Mark-IV BB V8 .064in ArmorCore Exhaust Mani Gskt Set-Brodix Big Duke/Head Hunter Heads

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

Fel-Pro Chevrolet C10 Exhaust Pipe Flange Gasket

Cometic Chevy Gen-4 Big Block V8 .060in HTS Exhaust Manifold Gasket - 2.250in Round Port - 20 Pack

MAHLE Original Checker Marathon 69-65 Exhaust Pipe Packing Ring

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 .060in HTS Exhaust Manifold Gasket Set

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .064in AM Exhaust Manifold Gasket Set

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

MAHLE Original Buick Apollo 75-73 Intake To Exhaust Hot Spot

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

Cometic Chevy Mark-IV GM Gen-V/VI Big Block V8 .051in MLS Exhaust Mani Gasket Set-2.265in Round Port

Frequently Asked Questions

Do these parts fit my 1974 GMC C15/C1500 Suburban?

What mufflers & resonators options are available for my 1974 GMC C15/C1500 Suburban?

What brands make parts for the 1974 GMC C15/C1500 Suburban?

How fast do 1974 GMC C15/C1500 Suburban parts ship?

What warranty do your 1974 GMC C15/C1500 Suburban parts come with?