WALKER - Exhaust Muffler - 21565

Product Description

The Walker® Quiet-Flow® SS 21565 Exhaust Muffler is engineered with 100% stainless-steel construction for exceptional corrosion resistance and long service life. Designed as a direct-fit, bolt-on replacement, this muffler features OE-style hangers, brackets, and pipe routings that simplify installation with no welding required. Internal partitions and mechanically joined tubes help the unit withstand temperature fluctuations, minimizing distortion and extending durability.

With louvered tubes and domed heads, the Quiet-Flow SS muffler produces premium factory-style sound quality while reducing radiated noise. Acoustic and flow testing ensure dependable OE-style performance you can count on. Backed by Walker’s limited lifetime warranty and 90-Day Safe & Sound® Guarantee, this muffler delivers superior longevity and reliability for your vehicle.

Features

• 100% Stainless-Steel Construction for maximum corrosion resistance

• Direct-Fit Bolt-On Design – OE-style hangers and routing for easy installation

• Durable Build – Mechanically joined tubes minimize distortion

• Premium Sound Control – OE-style louvered tubes reduce noise

• Design Validated – Flow and acoustic testing ensure OE-quality performance

• Lifetime Warranty + 90-Day Guarantee for confidence and reliability

Exhaust Muffler Dimensions

Vehicle Fitment

Ford

• Explorer — 2006–2010 — Rear — 4.6L V8 281cid

• Explorer Sport Trac — 2007–2010 — Rear — 4.6L V8 281cid

Mercury

• Mountaineer — 2006–2010 — 4.6L V8 281cid

Installation & Notes

• Direct-fit muffler designed to bolt on without welding.

• Not reversible — must be installed in correct orientation.

• Verify inlet diameter and offset to ensure correct alignment with existing piping.

• Exhaust hangers not included; reuse OE hangers where applicable.

• Designed for vehicles equipped with the 4.6L V8 only.