Description
The Power Products M5510 is a Type 1 heavy-duty truck muffler with 5″ end inlet, 5″ end outlet, 10″ diameter body, and 44-1/2″ body length (≈51″ overall). It serves as a direct replacement for many universal vertical-stack mufflers used across Class 7/8 tractors and vocational trucks, with no-baffle variant M5510-NB available for lower backpressure builds.
Specifications
| Manufacturer | Power Products |
|---|---|
| Part Number | M5510 |
| Part Type | Muffler — Type 1, End Inlet / End Outlet |
| Inlet Diameter | 5 in |
| Outlet Diameter | 5 in |
| Body Diameter | 10 in |
| Body Length | 44-1/2 in |
| Overall Length | ≈51 in |
| Configuration | Centered inlet / outlet, baffled |
| No-Baffle Variant | Power Products M5510-NB |
Cross References
This muffler replaces or is equivalent to the following part numbers:
- Nelson: 86130M, 86531M, 86672M, 86682M, 86682M10, NLM5510
- Donaldson: M100465, M100463, M10065, M10682, M5010, M5510
- Walker: 22851, 22920, 22963
- Grand Rock: M5510, M5510-NB
- Stemco / Crown: 1901103, 1901107, 1901245, 1909872
- Also known as: 00465, 100465, 11167, 11169, 11222, 11224, 1865, 31165, 44116X3, 48M5510, 562.U6510, 5510, M-465, M465, M5510P, BR5112, RK10020, TX3699, 2ME49301P4
Applications
Universal heavy-duty vertical-stack muffler. Common applications include:
- Freightliner, Kenworth, Peterbilt, International, Mack, and Volvo on-highway tractors with 5″ exhaust
- Vocational trucks (dump, mixer, refuse) using vertical-stack exhaust
- Aftermarket exhaust upgrades from 4″ or 5″ stack systems
Verify your inlet/outlet diameters, body length, and clamp style before ordering. Many vertical-stack systems use 5″ tubing — measure to confirm.









