Walker 18160 Exhaust Muffler

Walker SoundFX Universal Muffler for GM Vans

Walker SoundFX Universal Muffler Part Number 18160 is a universal-fit exhaust muffler built for 3-inch pipe connections and a 26.5-inch overall length. It is a practical choice for drivers servicing 1987-1989 Chevrolet G20, Chevrolet G30, GMC G2500, and GMC G3500 applications that call for a 3-inch inlet and outlet layout.

The SoundFX Universal line focuses on a balanced exhaust note and durable construction. This Walker SoundFX Universal muffler uses aluminized steel for improved service life versus low-carbon steel, along with mechanical interior joints and spun-locked heads for added structural durability.

• Universal fit muffler for custom or replacement exhaust work
• Oval body shape with a 9.75-inch body width and 4.25-inch body height
• 3-inch offset inlet and 3-inch center outlet
• Aluminized steel finish for corrosion resistance
• Combination muffler design for broad application use
• Walker Part Number 18160 for catalog and fitment reference

Product Details

Walker 18160 is an exhaust muffler with a steel body, aluminized finish, 20-inch body length, and pipe connection inlet and outlet ends. The offset inlet and center outlet layout supports exhaust routing where a universal muffler must be adapted to the vehicle’s existing system. This part cross-references CSF 3769 and TYC 3770 for the same application. It is a direct fitment match for 1987-1989 Chevrolet G20, 1987-1989 Chevrolet G30, 1987-1989 GMC G2500, and 1987-1989 GMC G3500 configurations listed with dual catalytic converters or a 3-inch muffler inlet.

Common Exhaust Issues It Can Address

• Damaged or rusted muffler housing
• Exhaust noise from a failing internal muffler core
• Restricted exhaust flow caused by corrosion or deterioration
• Need for a replacement muffler with 3-inch inlet and outlet sizing
• Fitment needs on Chevrolet G20, Chevrolet G30, GMC G2500, and GMC G3500 exhaust systems

Installation Notes

Compatible With 1987-1989 Chevrolet G20, N/A; 1987-1989 Chevrolet G30, N/A; 1987-1989 GMC G2500, N/A; and 1987-1989 GMC G3500, N/A as listed in the fitment data. Review the vehicle’s exhaust routing, inlet offset, and outlet center configuration before installation. Modifications and/or additional parts may be required for installation, especially on vehicles with dual catalytic converters or heavy-duty emissions equipment. Verify pipe diameter and available space against the muffler’s overall dimensions before welding or clamping.

Quality Assurance

Walker SoundFX Universal mufflers are built with aluminized steel, mechanical interior joints, and spun-locked heads to support durability in exhaust service. The SoundFX Universal product line is positioned for dependable replacement use with a focus on appearance and acoustics.