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WALKER - Exhaust Muffler - 18978

WALKER
WAL18978
In stock
Muffler
$86.99
Product Description The Walker SoundFX® 18978 Direct-Fit Exhaust Muffler is engineered with 100% aluminized steel for...
$86.99

WALKER - Exhaust Muffler - 18978

Product Description

The Walker SoundFX® 18978 Direct-Fit Exhaust Muffler is engineered with 100% aluminized steel for superior corrosion resistance and longer service life compared to standard low-carbon steel. Designed for Jeep Wrangler models, this premium muffler delivers quality factory-style sound, strong durability, and a reliable direct-fit installation.

Mechanical interior joints and spun-locked heads improve structural strength, while internal louvered tubes help reduce radiated noise for OE-style acoustics. With OE-style hangers, brackets, and routing, this muffler installs easily without the need for welding or custom fabrication.


Features

  • Corrosion-Resistant Aluminized Steel for longer service life

  • Mechanically Joined Tubes & Internal Partitions to resist distortion

  • OE-Style Fitment—direct bolt-on replacement for simple installation

  • Factory-Quality Sound thanks to louvered tube design

  • Durable Spun-Locked Heads stand up to backpressure and temperature cycling

  • Premium Grade Construction ensures long-term reliability


Exhaust Muffler Dimensions

Specification Value
Shape Oval
Finish Aluminized
Outlet Location Offset
Inlet Type 2 Bolt Welded Flange
Outlet Type Pipe Connection
Body Height 4.250 in
Body Length 18.000 in
Body Width 9.750 in
Hanger Included No
Inlet Location Center
Inlet Quantity 1
Body Material Steel
Outlet Inside Diameter 2.250 in
Outlet Quantity 1
Reversible No
Tunable No
Universal or Specific Fit Specific
Grade Type Premium
Overall Length 22.000 in

Vehicle Fitment

Make Model Year Range Position Drive Wheel Engine
Jeep Wrangler 2003–2006 Exhaust Muffler 2.4L L4 148cid
Jeep Wrangler 2000–2006 Exhaust Muffler 4.0L L6 242cid
Jeep Wrangler 2000–2002 Exhaust Muffler 2.5L L4 150cid

Installation & Notes

  • Direct-fit design — no welding or fabrication required

  • Designed specifically for Jeep Wrangler exhaust routing

  • Not reversible — install according to inlet/outlet orientation

  • Reuse or replace hangers as needed (hangers not included)

  • Ensure flange compatibility with your OE exhaust system

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Shipping

Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.

Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.

Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.

Returns

Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.

Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.

Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.

Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).

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