45+ 1990 GMC R3500 Mufflers & Resonators SLE Parts - Page 2

SLE · Mufflers & Resonators (45 products)

Exact-fit parts for the 1990 GMC R3500 SLE.

Cometic Chevrolet Big Block V8 .060in. HTS Exh Mani Gasket Set - 2.090in. x 2.090in. Square Ports

Cometic Gasket

Part # C15325HTS

Confirmed Fit

Cometic Chevrolet Big Block V8 .060in. HTS Exh Mani Gasket Set - 2.090in. x 2.090in. Square Ports

$35.97

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

Cometic Gasket

Part # C5897-060

Confirmed Fit

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

$85.52

Magnaflow

Part # 93476

Confirmed Fit

MagnaFlow Conv DF Gm

$296.00

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

Cometic Gasket

Part # C5897HTS

Confirmed Fit

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 .094in HTG Exhaust Manifold Gasket Set

Cometic Gasket

Part # C5896HTG

Confirmed Fit

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

$38.12

Cometic Chevy Mark-IV GM Gen-V/VI BB V8 .064in ArmorCore Exhaust Mani Gasket Set-2.015in Round Port

Cometic Gasket

Part # C5349-064

Confirmed Fit

Cometic Chevy Mark-IV GM Gen-V/VI BB V8 .064in ArmorCore Exhaust Mani Gasket Set-2.015in Round Port

$46.58

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

Fel-Pro

Part # 60584

Confirmed Fit

Fel-Pro Chevrolet K1500 Exhaust Pipe Flange Gasket

$10.96

Fel-Pro

Part # ES75103

Confirmed Fit

Fel-Pro Chevrolet K1500 ES 75103 Exhaust Flange Stud and Nut

$29.98

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

Cometic Gasket

Part # CP5251

Confirmed Fit

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

$210.88

Magnaflow

Part # 95509

Confirmed Fit

MagnaFlow Conv Univ 3inch FED

$285.00

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

Cometic Gasket

Part # C5418-064

Confirmed Fit

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

$30.81

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

Cometic Gasket

Part # C5429-064

Confirmed Fit

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

$30.81

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .030in MLS Exhaust Manifold Gasket Set

Cometic Gasket

Part # C5350-030

Confirmed Fit

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .030in MLS Exhaust Manifold Gasket Set

$54.48

Fel-Pro

Part # 60556

Confirmed Fit

Fel-Pro Chevrolet C10 60556 Exhaust Pipe Flange Gasket

$14.26

Cometic Gasket

Part # C5896-030

Confirmed Fit

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .030in MLS Exhaust Manifold Gasket Set

$54.48

Magnaflow

Part # 3391477

Confirmed Fit

MagnaFlow Conv Direct Fit 90-95 Chevrolet C2500 4.3L/5.7L/7.4L

$995.00

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

Cometic Gasket

Part # C5350-064

Confirmed Fit

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

$46.58

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

Cometic Gasket

Part # C5251-030

Confirmed Fit

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

$54.48

MAHLE Original American Motors Concord 82-80 Exhaust Gas Recirculation Valve Gasket

Victor Reinz

Part # G17797

Confirmed Fit

MAHLE Original American Motors Concord 82-80 Exhaust Gas Recirculation Valve Gasket

$15.94

Frequently Asked Questions

Do these parts fit my 1990 GMC R3500 SLE?

This page groups parts listed for the 1990 GMC R3500 SLE. 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 1990 GMC R3500 SLE?

We offer a wide selection of mufflers & resonators parts for the 1990 GMC R3500 SLE. 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 1990 GMC R3500 SLE?

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

How fast do 1990 GMC R3500 SLE 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 1990 GMC R3500 SLE 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.

1990 GMC R3500(3,815 parts)

1990 GMC R3500(3,815 parts)

Shop by Problem

Other GMC R3500 Years

SLE · Mufflers & Resonators (45 products)

Cometic Chevrolet Big Block V8 .060in. HTS Exh Mani Gasket Set - 2.090in. x 2.090in. Square Ports

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

MagnaFlow Conv DF Gm

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 .094in HTG Exhaust Manifold Gasket Set

Cometic Chevy Mark-IV GM Gen-V/VI BB V8 .064in ArmorCore Exhaust Mani Gasket Set-2.015in Round Port

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

Fel-Pro Chevrolet K1500 Exhaust Pipe Flange Gasket

Fel-Pro Chevrolet K1500 ES 75103 Exhaust Flange Stud and Nut

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

MagnaFlow Conv Univ 3inch FED

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

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

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .030in MLS Exhaust Manifold Gasket Set

Fel-Pro Chevrolet C10 60556 Exhaust Pipe Flange Gasket

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .030in MLS Exhaust Manifold Gasket Set

MagnaFlow Conv Direct Fit 90-95 Chevrolet C2500 4.3L/5.7L/7.4L

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

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

MAHLE Original American Motors Concord 82-80 Exhaust Gas Recirculation Valve Gasket

Frequently Asked Questions

Do these parts fit my 1990 GMC R3500 SLE?

What mufflers & resonators options are available for my 1990 GMC R3500 SLE?

What brands make parts for the 1990 GMC R3500 SLE?

How fast do 1990 GMC R3500 SLE parts ship?

What warranty do your 1990 GMC R3500 SLE parts come with?