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The Walker® SoundFX® Universal Muffler (18142) provides dependable performance with a design engineered to replicate factory-style sound control. Built from 100% aluminized steel, it offers enhanced corrosion resistance and durability compared to low-carbon steel alternatives. This universal-fit muffler is ideal for classic Dodge and Ford truck applications where adaptation or fabrication may be required. Internal louvered tubes and mechanically joined construction help maintain optimal noise reduction while ensuring long service life.
RESISTS CORROSION – Aluminized steel body with an internal drainage system helps prevent premature rusting.
BUILT TO LAST – Mechanically joined tubes and internal partitions handle temperature cycling while maintaining structural integrity; spun-locked heads increase durability.
FLEXIBLE SOLUTION – Universal muffler design allows for broad application coverage; may require welding or modification during installation.
FACTORY SOUND – Louvered tube construction delivers OE-style acoustic performance and reduced radiated noise.
LONGER SERVICE LIFE – Rigorously engineered for extended durability and reliable muffler function.
This is a universal muffler. Vehicles listed commonly use this style, but installation may require modification or welding.
| Make | Model | Years | Position | Drive | Qty | Engine |
|---|---|---|---|---|---|---|
| Dodge | D100 | 1975–1978 | Exhaust Muffler | — | 1 | 5.9L V8 360cid |
| Dodge | D100 | 1978 | Exhaust Muffler | — | 1 | 4.0L L6 243cid |
| Dodge | D100 | 1975–1978 | Exhaust Muffler | — | 1 | 5.2L V8 318cid |
| Dodge | D150 | 1978 | Exhaust Muffler | — | 1 | 4.0L L6 243cid |
| Dodge | D150 | 1977–1978 | Exhaust Muffler | — | 1 | 5.9L V8 360cid |
| Dodge | D150 | 1977–1978 | Exhaust Muffler | — | 1 | 5.2L V8 318cid |
| Dodge | D200 | 1975–1978 | Exhaust Muffler | — | 1 | 5.2L V8 318cid |
| Dodge | D200 | 1975–1978 | Exhaust Muffler | — | 1 | 5.9L V8 360cid |
| Dodge | D300 | 1975–1978 | Exhaust Muffler | — | 1 | 5.2L V8 318cid |
| Dodge | D300 | 1975–1978 | Exhaust Muffler | — | 1 | 5.9L V8 360cid |
| Dodge | W100 | 1976–1977 | Exhaust Muffler | — | 1 | 5.9L V8 360cid |
| Dodge | W100 | 1976–1977 | Exhaust Muffler | — | 1 | 5.2L V8 318cid |
| Dodge | W150 | 1977–1978 | Exhaust Muffler | — | 1 | 5.9L V8 360cid |
| Dodge | W150 | 1977–1978 | Exhaust Muffler | — | 1 | 5.2L V8 318cid |
| Dodge | W200 | 1976–1978 | Exhaust Muffler | — | 1 | 5.2L V8 318cid |
| Dodge | W200 | 1976–1978 | Exhaust Muffler | — | 1 | 5.9L V8 360cid |
| Ford | Bronco | 1983–1996 | Exhaust Muffler | — | 1 | 5.0L V8 302cid |
| Ford | Bronco | 1987–1992 | Exhaust Muffler | — | 1 | 4.9L L6 4917cc/300cid |
| Ford | F-150 | 1980–1986 | Exhaust Muffler | — | 1 | 5.8L V8 351cid |
| Ford | F-150 | 1984–1986 | Exhaust Muffler | — | 1 | 5.0L V8 302cid |
| Ford | F-250 | 1984–1986 | Exhaust Muffler | — | 1 | 5.0L V8 302cid |
| Ford | F-250 | 1980–1982 | Exhaust Muffler | — | 1 | 6.6L V8 400cid |
| Ford | F-250 | 1980–1985 | Exhaust Muffler | — | 1 | 5.8L V8 351cid |
| Ford | F-350 | 1981–1985 | Exhaust Muffler | RWD | 1 | 5.8L V8 351cid |
| Ford | F-350 | 1980 | Exhaust Muffler | — | 1 | 5.8L V8 351cid |
| Ford | F-350 | 1981–1985 | Exhaust Muffler | 4WD | 1 | 5.8L V8 351cid |
| Ford | F-350 | 1980 | Exhaust Muffler | — | 1 | 6.6L V8 400cid |
| Ford | F-350 | 1981–1982 | Exhaust Muffler | RWD | 1 | 6.6L V8 400cid |
Shape: Round
Finish: Aluminized
Outlet Location: Offset
Inlet Type: Pipe Connection
Outlet Type: Pipe Connection
Inlet Inside Diameter: 2.250 in
Body Height: 6.000 in
Body Length: 25.000 in
Body Width: 6.000 in
Hanger Included: No
Inlet Location: Offset
Inlet Quantity: 1
Body Material: Steel
Outlet Inside Diameter: 2.250 in
Outlet Quantity: 1
Reversible: No
Tunable: No
Fit: Universal
Grade Type: Premium
Overall Length: 31.000 in
Inlet Offset: 1.500 in
Part Description: SoundFX Universal Muffler
Universal design — modification or welding required for most applications.
Verify overall length and inlet location for compatibility.
Not reversible; ensure correct orientation before installation.
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.
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).
