Walker Exhaust 21838 Exhaust Muffler

Buyer fitment guide only intended as reference. Please use catalogue search by vehicle to ensure proper fitment.

• AP Exhaust 3625
• AP Exhaust 4218
• Donaldson M085171
• Donaldson M085421
• Grand Rock M-127
• Thomas Built Buses 61240015

• An economical replacement for the original equipment part
• Designed to help ensure long service life
• Engineered to reduce in-cab and exterior engine noise
• Manufactured from aluminized steel for durability
• Offered in a variety of styles, sizes and materials for your installation needs
• Walker© offers hundreds of muffler designs and styles to fit virtually any hard-working on/off road commercial vehicle. Walker is a "one-stop" convenience, offering complete engine-to-tailpipe coverage of replacement emissions control systems and components for popular domestic, import and commercial vehicle applications.