HomeExhaust > MufflersWalker 18381 Exhaust Muffler
Part #: 18381

Walker 18381 Exhaust Muffler

SoundFX Direct Fit
55 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
SoundFX Direct Fit
Fitment: Chrysler, Dodge, and Jeep, B100, B200, B300, Cherokee, Grand Wagoneer, Imperial, Monaco, New Yorker, Newport, Town & Country, and Wagoneer
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker SoundFX Direct Fit Exhaust Muffler 18381

The Walker SoundFX Direct Fit Exhaust Muffler 18381 is designed specifically for select Chrysler, Dodge, and Jeep vehicles. This oval-shaped muffler offers a precise fit and reliable performance for models including the B100, B200, B300, Cherokee, Grand Wagoneer, Imperial, Monaco, Newport, New Yorker, Town & Country, and Wagoneer.

  • Specific fit for Chrysler, Dodge, and Jeep models
  • Oval body shape with aluminized steel construction
  • 2.5-inch inlet and outlet pipe connections
  • Offset inlet and center outlet configuration
  • Combination muffler type for balanced sound and performance
  • Overall length of 29 inches with a 9.75-inch body width

Product Line: Walker SoundFX Direct Fit

The SoundFX Direct Fit line by Walker focuses on providing exhaust mufflers engineered for direct replacement without modification. This product line emphasizes exact fitment and sound control tailored to specific vehicle applications. The 18381 muffler maintains these standards, ensuring compatibility and consistent exhaust flow for the designated Chrysler, Dodge, and Jeep models.

Detailed Product Description

The Walker 18381 exhaust muffler features a durable aluminized steel body designed to resist corrosion and extend service life. Its oval shape measures 9.75 inches in width, 4.25 inches in height, and 25 inches in body length, fitting precisely within the exhaust system layout of compatible vehicles. The muffler includes a single 2.5-inch inlet pipe connection with an offset configuration of 2.875 inches, and a single 2.5-inch outlet pipe connection centered for optimal exhaust flow. This combination muffler type balances noise reduction and exhaust efficiency without tunability or reversibility, making it a straightforward replacement part.

Applications and Problem Solving

  • Replacement for worn or damaged mufflers on Chrysler B100, B200, B300 series
  • Restores proper exhaust flow and reduces excessive noise in Jeep Cherokee and Grand Wagoneer
  • Addresses exhaust leaks and corrosion issues in Dodge Monaco and Imperial models
  • Maintains factory exhaust sound characteristics for Newport, New Yorker, and Town & Country vehicles
  • Ensures compliance with exhaust system specifications on Wagoneer models

Installation Notes and Tips

This muffler is designed for direct fit installation on specified Chrysler, Dodge, and Jeep models. It requires pipe connection at both inlet and outlet with no reversibility or tuning options. Proper alignment of the offset inlet and center outlet is essential to ensure a secure fit and prevent exhaust leaks. Professional installation is recommended to verify correct positioning and welding or clamping as needed.

Quality Assurance

Constructed from aluminized steel, the Walker SoundFX Direct Fit muffler 18381 offers corrosion resistance suitable for standard driving conditions. While specific warranty details are not provided, Walker products typically meet industry standards for durability and performance in exhaust components.

BrandWalker
Part Number18381
PositionSoundFX Direct Fit
Universal Or Specific FitSpecific
ShapeOval
Grade TypeRegular
Inlet Inside Diameter2.5
Body Width9.75
Inlet Quantity1
Outlet Inside Diameter2.5
Outlet Quantity1
ReversibleNo
TunableNo
Overall Length29
Body Height4.25
Body Length25
Body MaterialSteel
FinishAluminized
Inlet 1 Inside Diameter2.5
Inlet 1 TypePipe connection
Inlet ConfigurationOffset
Inlet Offset2.875
Inlet TypePipe connection
Muffler TypeCombination
Outlet 1 Inside Diameter2.5
Outlet 1 TypePipe connection
Outlet ConfigurationCenter
Outlet TypePipe connection

This part fits 55 vehicles. Search below:

YearMakeModelSubmodelBody TypeLitersCylindersPositionNotes
1991JeepGrand Wagoneer5.9LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1990JeepGrand Wagoneer5.9LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1989JeepGrand Wagoneer5.9LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1988JeepGrand Wagoneer5.9LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1987JeepGrand Wagoneer5.9LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1986JeepGrand Wagoneer5.9LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1985JeepGrand Wagoneer5.9LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1984JeepGrand Wagoneer5.9LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1983JeepCherokee5.9LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1982JeepCherokee5.9LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1982JeepWagoneer5.9LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1981JeepCherokee5.9LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1981JeepWagoneer5.9LV8N/AIf welded assembly, replace all required parts; SoundFX Direct Fit
1980JeepCherokee5.9LV8N/Awithout California Emission System; If welded assembly, replace all required parts; SoundFX Direct Fit
1980JeepWagoneer5.9LV8N/Awithout California Emission System; If welded assembly, replace all required parts; SoundFX Direct Fit
1978DodgeB1005.9LV8N/Awith Sound Control; SoundFX Direct Fit
1978DodgeB2007.2LV8N/ASoundFX Direct Fit
1978DodgeB2005.9LV8N/Awith Sound Control; SoundFX Direct Fit
1978DodgeB2006.6LV8N/ASoundFX Direct Fit
1978DodgeB3007.2LV8N/ASoundFX Direct Fit
1978DodgeB3005.9LV8N/ASoundFX Direct Fit
1978DodgeB3006.6LV8N/ASoundFX Direct Fit
1977DodgeB1005.9LV8N/Awith Sound Control; SoundFX Direct Fit
1977DodgeB2007.2LV8N/ASoundFX Direct Fit
1977DodgeB2005.9LV8N/Awith Sound Control; SoundFX Direct Fit
1977DodgeB2006.6LV8N/ASoundFX Direct Fit
1977DodgeB3007.2LV8N/ASoundFX Direct Fit
1977DodgeB3005.9LV8N/ASoundFX Direct Fit
1977DodgeB3006.6LV8N/ASoundFX Direct Fit
1976DodgeB2007.2LV8N/ASoundFX Direct Fit
1976DodgeB2006.6LV8N/ASoundFX Direct Fit
1976DodgeB3007.2LV8N/ASoundFX Direct Fit
1976DodgeB3006.6LV8N/ASoundFX Direct Fit
1974ChryslerImperial7.2LV8N/Awith Standard Duty Engine; SoundFX Direct Fit
1974ChryslerNew Yorker7.2LV8N/ASoundFX Direct Fit
1974ChryslerNewportCustom7.2LV8N/ASoundFX Direct Fit
1974ChryslerTown & CountryWagon7.2LV8N/ASoundFX Direct Fit
1974DodgeMonacoWagon7.2LV8N/ASoundFX Direct Fit
1973ChryslerImperial7.2LV8N/ASoundFX Direct Fit
1973ChryslerNew YorkerBrougham7.2LV8N/ASoundFX Direct Fit
1973ChryslerNewport7.2LV8N/ASoundFX Direct Fit
1973ChryslerTown & Country7.2LV8N/ASoundFX Direct Fit
1973DodgeMonacoU/K6.6LV8N/ASoundFX Direct Fit
1973DodgeMonaco7.2LV8N/Awith Single Exhaust; SoundFX Direct Fit
1972ChryslerImperial7.2LV8N/ASoundFX Direct Fit
1972ChryslerNew Yorker7.2LV8N/ASoundFX Direct Fit
1972ChryslerNewport7.2LV8N/ASoundFX Direct Fit
1972ChryslerTown & Country7.2LV8N/ASoundFX Direct Fit
1972DodgeMonacoU/K6.6LV8N/ASoundFX Direct Fit
1972DodgeMonaco7.2LV8N/Awith Single Exhaust; SoundFX Direct Fit
1971ChryslerImperial7.2LV8N/ASoundFX Direct Fit
1971ChryslerTown & Country7.2LV8N/ASoundFX Direct Fit
1971ChryslerTown & Country6.3LV8N/ASoundFX Direct Fit
1971DodgeMonacoU/K7.2LV8N/Awith Single Exhaust; SoundFX Direct Fit
1971DodgeMonacoU/K6.3LV8N/Awith Single Exhaust; SoundFX Direct Fit

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

This part directly replaces or is cross-referenced with the following part numbers:

700264

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