Walker 18354 Exhaust Muffler

Brand	Walker 18354
Outlet Outside Diameter	3
Universal Or Specific Fit	Specific
Shape	Oval
Grade Type	Regular
Inlet Inside Diameter	3
Body Width	9
Inlet Quantity	1
Outlet Quantity	1
Reversible	No
Tunable	No
Overall Length	25
Body Height	7
Body Length	18
Body Material	Steel
Finish	Aluminized
Inlet 1 Inside Diameter	3
Inlet 1 Type	Pipe connection
Inlet Configuration	Offset
Inlet Offset	1.75
Inlet Type	Pipe connection
Muffler Type	Combination
Outlet 1 Outside Diameter	3
Outlet 1 Type	Pipe connection
Outlet Configuration	Offset
Outlet Type	Pipe connection
Product line	SoundFX Direct Fit
Fits	Chevrolet and GMC · 48 vehicles

Direct-fit design. Installs as a specific-fit exhaust muffler with no guesswork.

Aluminized steel. Helps resist corrosion for longer service life than low-carbon steel.

Mechanical interior joints. Spun-locked heads add durability and a quality appearance.

Cross-references TYC 700222 for the same application. See all 1.

$85.53Free shipping

In stock · usually ships same day before 1pm CST

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Walker SoundFX Direct Fit Muffler for GM Trucks

Walker SoundFX Direct Fit muffler Part Number 18354 is a specific-fit exhaust muffler for select 1990-1995 Chevrolet C3500, Chevrolet K3500, GMC C3500, and GMC K3500 applications. It uses a 3-inch inlet and 3-inch outlet with an offset pipe connection layout for direct replacement service on listed vehicles.

Key Features

Specific-fit exhaust muffler for listed Chevrolet and GMC heavy-duty truck applications
3-inch inlet and 3-inch outlet with offset inlet and outlet configuration
Oval muffler body with 25-inch overall length
Aluminized steel construction for improved service life versus low-carbon steel
Mechanical interior joints and spun-locked heads for added durability
Regular-grade, combination muffler design
Walker SoundFX Direct Fit line for OE-style replacement fitment

Product Details

Walker 18354 is built as a direct-fit exhaust muffler for 1990-1995 Chevrolet C3500 and K3500, plus 1990-1995 GMC C3500 and K3500 models below 15,000 lb GVW with catalytic converter applications. The oval steel body measures 18 inches long, 9 inches wide, and 7 inches high, with an aluminized finish for corrosion resistance. This muffler uses a 1.75-inch inlet offset and 3-inch pipe connections at both inlet and outlet, making it a practical replacement for service on GM truck exhaust systems. This part cross-references TYC 700222 for the same application.

Common Uses

Replacing a worn or rusted muffler on a 1990-1995 Chevrolet C3500
Replacing a damaged muffler on a 1990-1995 Chevrolet K3500
Replacing a factory-style muffler on a 1990-1995 GMC C3500
Replacing a factory-style muffler on a 1990-1995 GMC K3500
Restoring exhaust flow and sound control on listed GM heavy-duty trucks

Installation Notes

Verify vehicle fitment by year, make, model, GVW rating, and catalytic converter configuration before installation. This muffler is specific fit and uses pipe connection ends with an offset layout, so alignment with the existing exhaust system should be checked before welding or final assembly. If the vehicle has a welded exhaust assembly, replace all required related parts during service to maintain proper fit.

Quality Assurance

Walker SoundFX Direct Fit mufflers use 100% aluminized steel, mechanical interior joints, and spun-locked heads to support long-term durability and consistent fit on listed applications. Walker 18354 is part of the SoundFX Direct Fit line, which focuses on direct replacement exhaust service for compatible GM truck platforms.

This part fits 48 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Body Type	Liters	Cylinders	Wheel Base	Position	Notes
1995	Chevrolet	C3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1995	Chevrolet	C3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1995	Chevrolet	K3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1995	Chevrolet	K3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1995	GMC	C3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1995	GMC	C3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1995	GMC	K3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1995	GMC	K3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1994	Chevrolet	C3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1994	Chevrolet	C3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1994	Chevrolet	K3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1994	Chevrolet	K3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1994	GMC	C3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1994	GMC	C3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1994	GMC	K3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1994	GMC	K3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1993	Chevrolet	C3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1993	Chevrolet	C3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1993	Chevrolet	K3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1993	Chevrolet	K3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1993	GMC	C3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1993	GMC	C3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1993	GMC	K3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1993	GMC	K3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1992	Chevrolet	C3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1992	Chevrolet	C3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1992	Chevrolet	K3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1992	Chevrolet	K3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1992	GMC	C3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1992	GMC	C3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1992	GMC	K3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1992	GMC	K3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1991	Chevrolet	C3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1991	Chevrolet	C3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1991	Chevrolet	K3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1991	Chevrolet	K3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1991	GMC	C3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1991	GMC	C3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1991	GMC	K3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1991	GMC	K3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1990	Chevrolet	C3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1990	Chevrolet	C3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1990	Chevrolet	K3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1990	Chevrolet	K3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1990	GMC	C3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1990	GMC	C3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1990	GMC	K3500	Cab & Chassis	5.7L	V8	159.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
1990	GMC	K3500	Cab & Chassis	5.7L	V8	135.5"	N/A	Below 15000 (lb) GVW; with Catalytic Converter; If welded assembly, replace all required parts; SoundFX Direct Fit
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Directly replaces or cross-references 1 part number

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

TYC — 700222