Walker Heavy Duty Truck Muffler, Class 7/8, 9 in OD, 19 in Body Length, 5 in Inlet, Aluminized Steel, Arc Weld
#WAK22771
Product Overview
Heavy duty truck muffler featuring a 19 in body length and 9 in outside diameter. Constructed from aluminized steel with a round body shape, center inlet and outlet positions, and 5 in inlet side diameter. Designed for class 7 and 8 vehicles, this muffler offers a straight-through performance design that reduces backpressure and highway drone while maintaining excellent acoustics. Durable arc weld mounting ensures long service life.
Features & Benefits
- Reduces highway drone
- Up to a 30% reduction in backpressure (Based on cold-flow bench test of competitive mufflers)
- Specifically engineered for class 7 and 8 vehicles
- Straight-through performance design
- Premium construction for a long service life - constructed with aluminized heavy-gauge steel, internally welded baffles and bridge-constructed inlets/outlets to improve vibration resistance and durability
- Backed by the best guarantee in the industry - premium performance mufflers are backed by a 4-year / 500,000-mile / 800,000 km warranty plus an exclusive 90-Day safe and sound guarantee
- Reduce backpressure without sacrificing acoustics - combines a straight-through design with OCF roving to produce a performance muffler that improves exhaust flow and delivers unparalleled performance and reduced backpressure, without sacrificing acoustics
- Manufactured from aluminized steel for durability
- Designed to help ensure long service life
- Engineered to reduce in-cab and exterior engine noise
- Offered in a variety of styles, sizes and materials for your installation needs
- An economical replacement for the original equipment part
Specifications
| Body Length | 19 in |
| Finish | Aluminized |
| Height | 9 in |
| Inlet Diameter | 5 in |
| Inlet Position | Center |
| Length | 19 in |
| Material | Steel |
| Outlet Diameter | 9 in |
| Quantity | 1 |
| Type | Heavy Duty |
| VMRS Code | 043-003-001 |
| Width | 9 in |
| Body Shape | Round |
| Inlet Side Diameter | 5 in |
| Mounting Type | Arc Weld |
| Outlet Position | Center |
| Outside Diameter | 9 in |
| Manufacturer Part Number | 22771 |
| Product Category | Truck Muffler |
Interchanges & Equivalent parts:
| W22771 |
| 3895 |
| M-595 |
| SM5590 |




















