Walker 18251 Exhaust Muffler
OE Quality 60-Day Returns
Walker
 SoundFX Direct Fit

Walker 18251 Exhaust Muffler

Brand Walker 18251
Universal Or Specific Fit Specific
Shape Round
Grade Type Regular
Inlet Inside Diameter 2
Body Width 7
Inlet Quantity 1
Outlet Inside Diameter 2
Outlet Quantity 1
Reversible No
Tunable No
Overall Length 24
Body Height 7
Body Length 21
Body Material Steel
Finish Aluminized
Inlet 1 Inside Diameter 2
Inlet 1 Type Pipe connection
Inlet Configuration Offset
Inlet Offset 1.75
Inlet Type Pipe connection
Muffler Type Combination
Outlet 1 Inside Diameter 2
Outlet 1 Type Pipe connection
Outlet Configuration Offset
Outlet Type Pipe connection
Product line SoundFX Direct Fit
Fits Toyota · 26 vehicles

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

100% aluminized steel. Helps resist corrosion for longer service life.

Mechanical interior joints. Spun-locked heads add durability and a solid build.

Cross-references AP Exhaust 700152, BRExhaust 288-023 and Four Seasons 44065 for the same application. See all 5.

$68.17Free shipping
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Order total $68.17
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Free returns within 60 days if it doesn't fit when fitment is verified.
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Walker SoundFX Direct Fit Muffler

Walker SoundFX Direct Fit muffler Part Number 18251 is a specific-fit exhaust muffler built for select Toyota applications from 1988-1995. It uses 100% aluminized steel for improved service life over low-carbon steel and is shaped for a direct-fit replacement on compatible Toyota 4Runner and Toyota Pickup models.

Walker SoundFX Direct Fit focuses on a clean OE-style appearance and controlled exhaust tone. For shoppers searching for a Toyota 4Runner muffler replacement or a Toyota Pickup exhaust muffler, Part Number 18251 provides a direct-fit solution with the correct inlet and outlet configuration for the listed vehicles.

Key Features

  • Specific-fit exhaust muffler for select Toyota 4Runner and Toyota Pickup models
  • Round combination muffler design
  • 2-inch inlet and 2-inch outlet with pipe connection ends
  • Offset inlet and offset outlet configuration
  • Aluminized steel body and finish for added corrosion resistance
  • Mechanical interior joints and spun-locked heads for durability
  • Overall length: 24 inches; body length: 21 inches; body width and height: 7 inches

Product Details

Walker SoundFX Direct Fit is a regular-grade exhaust muffler engineered around the listed fitment and dimensions. The aluminized steel construction helps resist rust better than low-carbon steel, while the internal joint design and spun-locked heads support long-term structural integrity. Part Number 18251 is a practical choice for drivers replacing a worn muffler on a 1988-1995 Toyota 4Runner or 1989-1995 Toyota Pickup with the specified exhaust configuration.

This part cross-references Walker Exhaust 43317 for the same application.

Vehicle Fitment

  • Fits 1994-1995 Toyota 4Runner, N/A; without California Emission System; requires 35489; if welded assembly, replace all required parts; optional parts for split system; requires two insulators 2 - do not reuse OE insulators; SoundFX Direct Fit
  • Fits 1993-1995 Toyota Pickup, N/A; without California Emission System; requires 35489; if welded assembly, replace all required parts; optional parts for split system; requires two insulators 2 - do not reuse OE insulators; SoundFX Direct Fit
  • Fits 1993-1995 Toyota Pickup, N/A; without California Emission System; except Flareside; requires 35489; if welded assembly, replace all required parts; requires two insulators 2 - do not reuse OE insulators; SoundFX Direct Fit
  • Fits 1992-1993 Toyota 4Runner, N/A; requires 35489; if welded assembly, replace all required parts; optional parts for split system; requires two insulators 2 - do not reuse OE insulators; SoundFX Direct Fit
  • Fits 1989-1992 Toyota Pickup, N/A; requires 35489; if welded assembly, replace all required parts; optional parts for split system; requires two insulators 2 - do not reuse OE insulators; SoundFX Direct Fit
  • Fits 1989-1992 Toyota Pickup, N/A; long bed; except Flareside; requires 35489; if welded assembly, replace all required parts; requires two insulators 2 - do not reuse OE insulators; SoundFX Direct Fit
  • Fits 1988-1991 Toyota 4Runner, N/A; requires 35489; if welded assembly, replace all required parts; requires two insulators 2 - do not reuse OE insulators; SoundFX Direct Fit

Installation Notes

Verify the vehicle’s emission configuration before ordering, since listed applications exclude California Emission System models. Confirm the required 35489 component and review whether the exhaust is a welded assembly or split system before installation. The fitment notes also specify two insulators and advise against reusing OE insulators.

Check inlet and outlet alignment, offset dimensions, and overall length against the existing exhaust layout on the Toyota 4Runner or Toyota Pickup. Because this muffler is not reversible or tunable, installation should follow the listed orientation and vehicle-specific configuration.

Quality Assurance

Walker SoundFX Direct Fit uses aluminized steel construction, mechanical interior joints, and spun-locked heads to support durability in exhaust service. The product line is built for direct-fit replacement applications with OE-style fitment and controlled acoustics.

Related reading

This part fits 26 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody TypeDrive TypeLitersCylindersWheel BasePositionNotes
1995Toyota4Runner———3.0LV6—N/Awithout California Emission System; Requires 35489; If welded assembly, replace all required parts; Optional Parts for Split System; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1995ToyotaPickup—Extended Cab Pickup4WD3.0LV6121.9"N/Awithout California Emission System; Requires 35489; If welded assembly, replace all required parts; Optional Parts for Split System; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1995ToyotaPickup——4WD3.0LV6102.9"N/Awithout California Emission System; Except Flareside; Requires 35489; If welded assembly, replace all required parts; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1994Toyota4Runner———3.0LV6—N/Awithout California Emission System; Requires 35489; If welded assembly, replace all required parts; Optional Parts for Split System; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1994ToyotaPickup—Extended Cab Pickup4WD3.0LV6121.5"N/Awithout California Emission System; Requires 35489; If welded assembly, replace all required parts; Optional Parts for Split System; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1994ToyotaPickup——4WD3.0LV6102.9"N/Awithout California Emission System; Except Flareside; Requires 35489; If welded assembly, replace all required parts; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1993Toyota4Runner———3.0LV6—N/ARequires 35489; If welded assembly, replace all required parts; Optional Parts for Split System; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1993ToyotaPickup—Extended Cab Pickup4WD3.0LV6121.5"N/Awithout California Emission System; Requires 35489; If welded assembly, replace all required parts; Optional Parts for Split System; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1993ToyotaPickup——4WD3.0LV6102.9"N/Awithout California Emission System; Except Flareside; Requires 35489; If welded assembly, replace all required parts; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1992Toyota4Runner———3.0LV6—N/ARequires 35489; If welded assembly, replace all required parts; Optional Parts for Split System; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1992ToyotaPickup—Extended Cab Pickup4WD3.0LV6121.5"N/ARequires 35489; If welded assembly, replace all required parts; Optional Parts for Split System; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1992ToyotaPickup——4WD3.0LV6102.9"N/ALong Bed; Except Flareside; Requires 35489; If welded assembly, replace all required parts; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1992ToyotaPickup——4WD3.0LV6112.2"N/ALong Bed; Except Flareside; Requires 35489; If welded assembly, replace all required parts; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1991Toyota4Runner———3.0LV6—N/ARequires 35489; If welded assembly, replace all required parts; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1991ToyotaPickup—Extended Cab Pickup4WD3.0LV6121.5"N/ARequires 35489; If welded assembly, replace all required parts; Optional Parts for Split System; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1991ToyotaPickup——4WD3.0LV6102.9"N/ALong Bed; Except Flareside; Requires 35489; If welded assembly, replace all required parts; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1991ToyotaPickup——4WD3.0LV6112.2"N/ALong Bed; Except Flareside; Requires 35489; If welded assembly, replace all required parts; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1990Toyota4Runner———3.0LV6—N/ARequires 35489; If welded assembly, replace all required parts; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1990ToyotaPickup—Extended Cab Pickup4WD3.0LV6121.5"N/ARequires 35489; If welded assembly, replace all required parts; Optional Parts for Split System; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1990ToyotaPickup——4WD3.0LV6102.9"N/ALong Bed; Except Flareside; Requires 35489; If welded assembly, replace all required parts; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1990ToyotaPickup——4WD3.0LV6112.2"N/ALong Bed; Except Flareside; Requires 35489; If welded assembly, replace all required parts; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1989Toyota4Runner———3.0LV6—N/ARequires 35489; If welded assembly, replace all required parts; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1989ToyotaPickup—Extended Cab Pickup4WD3.0LV6121.5"N/ARequires 35489; If welded assembly, replace all required parts; Optional Parts for Split System; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1989ToyotaPickup——4WD3.0LV6102.9"N/ALong Bed; Except Flareside; Requires 35489; If welded assembly, replace all required parts; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1989ToyotaPickup——4WD3.0LV6112.2"N/ALong Bed; Except Flareside; Requires 35489; If welded assembly, replace all required parts; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
1988Toyota4RunnerSR5——3.0LV6—N/ARequires 35489; If welded assembly, replace all required parts; Requires Two Insulators 2 - do not reuse OE Insulators; SoundFX Direct Fit
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 700152BRExhaust — 288-023Four Seasons — 44065Standard Ignition — 2021Walker Exhaust — 43317