Walker 18426 Exhaust Muffler

Brand	Walker 18426
Universal Or Specific Fit	Specific
Shape	Oval
Grade Type	Regular
Inlet Inside Diameter	2.5
Body Width	8.813
Inlet Quantity	1
Outlet Inside Diameter	2.125
Outlet Quantity	1
Reversible	No
Tunable	No
Overall Length	17.5
Body Height	4.25
Body Length	13
Body Material	Steel
Finish	Aluminized
Inlet 1 Inside Diameter	2.5
Inlet 1 Type	Pipe connection
Inlet Configuration	Center
Inlet Type	Pipe connection
Muffler Type	Combination
Outlet 1 Inside Diameter	2.125
Outlet 1 Type	Pipe connection
Outlet Configuration	Offset
Outlet Type	Pipe connection
Product line	SoundFX Direct Fit
Fits	Jeep · 40 vehicles

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

Aluminized steel. Helps extend service life versus low-carbon steel.

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

Cross-references AMS Automotive 6487 and Anchor 3102 for the same application. See all 2.

$102.05Free shipping

In stock · usually ships same day before 1pm CST

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Walker SoundFX Direct Fit Muffler for Jeep CJ

Walker SoundFX Direct Fit muffler Part Number 18426 is a specific-fit exhaust muffler for select Jeep CJ applications. It combines an oval steel body with an aluminized finish to support longer service life than low-carbon steel, while maintaining a clean appearance and controlled exhaust tone.

Key Features

Specific-fit exhaust muffler for select Jeep CJ5 and CJ7 models
Oval muffler body with center inlet and offset outlet configuration
2.5-inch inlet inside diameter and 2.125-inch outlet inside diameter
100% aluminized steel construction for improved corrosion resistance
Mechanical interior joints and spun-locked heads for added durability
Regular grade replacement muffler for direct-fit service

Product Details

The Walker SoundFX Direct Fit line focuses on replacement mufflers that match vehicle-specific exhaust layouts while delivering a controlled sound profile. Part Number 18426 uses a combination muffler design with an 8.813-inch body width, 4.25-inch body height, 13-inch body length, and 17.5-inch overall length. The steel body and aluminized finish help support long-term use in demanding exhaust environments, and the center-inlet, offset-outlet layout matches the listed Jeep CJ fitments. This part cross-references Monroe Shocks & Struts (e.g., 172286) for the same application.

Fitment

Fits 1982-1983 Jeep CJ5, N/A, with GM Engine; If welded assembly, replace all required parts; SoundFX Direct Fit
Fits 1982-1983 Jeep CJ7, N/A, with GM Engine; If welded assembly, replace all required parts; SoundFX Direct Fit
Fits 1981-1982 Jeep CJ5, N/A, without California Emission System; If welded assembly, replace all required parts; SoundFX Direct Fit
Fits 1981-1982 Jeep CJ7, N/A, without California Emission System; If welded assembly, replace all required parts; SoundFX Direct Fit
Fits 1976-1981 Jeep CJ5, N/A, If welded assembly, replace all required parts; SoundFX Direct Fit
Fits 1976-1981 Jeep CJ7, N/A, If welded assembly, replace all required parts; SoundFX Direct Fit
Fits 1978 Jeep CJ5, N/A, SoundFX Direct Fit
Fits 1976 Jeep CJ5, N/A, SoundFX Direct Fit
Fits 1978 Jeep CJ7, N/A, SoundFX Direct Fit
Fits 1976 Jeep CJ7, N/A, SoundFX Direct Fit
Fits 1977 Jeep CJ5, N/A, with California Emission System; SoundFX Direct Fit
Fits 1977 Jeep CJ7, N/A, with California Emission System; SoundFX Direct Fit

Common Replacement Uses

Replacing a rusted or perforated muffler on a Jeep CJ5 or Jeep CJ7
Restoring exhaust flow after a damaged or noisy factory muffler
Addressing exhaust drone, rattling, or excessive exhaust noise
Servicing a vehicle with a center-inlet, offset-outlet muffler layout
Updating a worn aluminized-steel exhaust component on a classic Jeep CJ

Installation Notes

Verify inlet and outlet diameters, body dimensions, and the center-inlet/offset-outlet configuration before installation. For welded exhaust assemblies, replace all required related parts as noted in the fitment data. Confirm the vehicle’s emission configuration and engine application for the listed Jeep CJ5 and Jeep CJ7 model years before ordering. Part Number 18426 is a direct-fit muffler for the specified applications and should be matched to the existing exhaust routing.

Quality Assurance

Walker SoundFX Direct Fit mufflers are built with aluminized steel, mechanical interior joints, and spun-locked heads to support durability in exhaust service. Part Number 18426 is engineered for the listed Jeep CJ applications and follows the SoundFX Direct Fit product line’s vehicle-specific replacement approach.

This part fits 40 vehicles

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

Year	Make	Model	Liters	Cylinders	Position	Notes
1983	Jeep	CJ5	2.5L	L4	N/A	with GM Engine; If welded assembly, replace all required parts; SoundFX Direct Fit
1983	Jeep	CJ7	2.5L	L4	N/A	with GM Engine; If welded assembly, replace all required parts; SoundFX Direct Fit
1982	Jeep	CJ5	2.5L	L4	N/A	with GM Engine; If welded assembly, replace all required parts; SoundFX Direct Fit
1982	Jeep	CJ5	4.2L	L6	N/A	without California Emission System; If welded assembly, replace all required parts; SoundFX Direct Fit
1982	Jeep	CJ7	4.2L	L6	N/A	without California Emission System; If welded assembly, replace all required parts; SoundFX Direct Fit
1982	Jeep	CJ7	2.5L	L4	N/A	with GM Engine; If welded assembly, replace all required parts; SoundFX Direct Fit
1981	Jeep	CJ5	4.2L	L6	N/A	without California Emission System; If welded assembly, replace all required parts; SoundFX Direct Fit
1981	Jeep	CJ5	5.0L	V8	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1981	Jeep	CJ5	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1981	Jeep	CJ7	4.2L	L6	N/A	without California Emission System; If welded assembly, replace all required parts; SoundFX Direct Fit
1981	Jeep	CJ7	5.0L	V8	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1981	Jeep	CJ7	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1980	Jeep	CJ5	4.2L	L6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1980	Jeep	CJ5	5.0L	V8	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1980	Jeep	CJ5	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1980	Jeep	CJ7	4.2L	L6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1980	Jeep	CJ7	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1980	Jeep	CJ7	5.0L	V8	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1979	Jeep	CJ5	4.2L	L6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1979	Jeep	CJ5	5.0L	V8	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1979	Jeep	CJ7	4.2L	L6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1979	Jeep	CJ7	5.0L	V8	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1978	Jeep	CJ5	3.8L	L6	N/A	SoundFX Direct Fit
1978	Jeep	CJ5	4.2L	L6	N/A	SoundFX Direct Fit
1978	Jeep	CJ5	5.0L	V8	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1978	Jeep	CJ7	3.8L	L6	N/A	SoundFX Direct Fit
1978	Jeep	CJ7	4.2L	L6	N/A	SoundFX Direct Fit
1978	Jeep	CJ7	5.0L	V8	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1977	Jeep	CJ5	5.0L	V8	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1977	Jeep	CJ5	3.8L	L6	N/A	with California Emission System; SoundFX Direct Fit
1977	Jeep	CJ5	4.2L	L6	N/A	with California Emission System; SoundFX Direct Fit
1977	Jeep	CJ7	4.2L	L6	N/A	with California Emission System; SoundFX Direct Fit
1977	Jeep	CJ7	5.0L	V8	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1977	Jeep	CJ7	3.8L	L6	N/A	with California Emission System; SoundFX Direct Fit
1976	Jeep	CJ5	3.8L	L6	N/A	SoundFX Direct Fit
1976	Jeep	CJ5	4.2L	L6	N/A	SoundFX Direct Fit
1976	Jeep	CJ5	5.0L	V8	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1976	Jeep	CJ7	3.8L	L6	N/A	SoundFX Direct Fit
1976	Jeep	CJ7	4.2L	L6	N/A	SoundFX Direct Fit
1976	Jeep	CJ7	5.0L	V8	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
No rows match your filter.

Directly replaces or cross-references 2 part numbers

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

AMS Automotive — 6487Anchor — 3102