Walker 56166 Exhaust Resonator and Pipe Assembly
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Walker

Walker 56166 Exhaust Resonator and Pipe Assembly

Brand Walker 56166
Body 1 Height 4
Body 1 Length 24.25
Body 1 Shape Round
Body 1 Width 4
Body Material Steel
Finish Aluminized
Inlet Inside Diameter 2.375
Inlet Type Pipe Connection
Muffler Body Length 24.25
Outlet Type 2 Bolt Welded Flange
Overall Length 70
Pipe Material Steel
Fits Toyota · 7 vehicles

OE-style sound. Precise tuning helps deliver smooth flow characteristics.

Steel construction. Aluminized finish helps resist corrosion and wear.

Pipe connection inlet. 2-bolt welded flange outlet for a secure exhaust fit.

Cross-references AP Exhaust 68460, BRExhaust 290-015 and 68490 for the same application. See all 3.

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Walker 56166 Exhaust Resonator and Pipe Assembly

Walker 56166 is an aluminized steel exhaust resonator and pipe assembly built for the 2004-2010 Toyota Sienna. It uses a 2.375-inch inlet with a pipe connection and a 2-bolt welded flange outlet to match the original exhaust layout and maintain OE-style sound and flow.

Key Features

  • Fits 2004-2010 Toyota Sienna, N/A
  • Walker part number 56166
  • Aluminized steel body and pipe construction
  • Round resonator body with 24.25-inch body length
  • 70-inch overall length for direct exhaust routing
  • 2.375-inch inlet inside diameter
  • 2-bolt welded flange outlet for secure connection
  • Engineered to match original-system sound and flow characteristics

Detailed Description

This Walker 56166 exhaust resonator and pipe assembly is built for Toyota Sienna models from 2004 through 2010 and is shaped to follow the factory exhaust path. Walker uses precise tuning methods to help the assembly deliver OE-style sound while supporting smooth exhaust flow. The aluminized steel construction helps provide durability in a standard replacement format, and the round resonator body measures 24.25 inches long with a 70-inch overall length.

This part cross-references AP Exhaust 68460 and BRExhaust 290-015 for the same application. If you are replacing a welded exhaust assembly on a Toyota Sienna, Walker 56166 provides the correct fitment profile for the listed years and configuration.

Common Replacement Reasons

  • Exhaust resonance or drone from a worn resonator
  • Rust or corrosion in the pipe or body
  • Damaged flange or pipe connection at the exhaust joint
  • Factory exhaust noise that no longer matches original tone
  • Need for a direct replacement on a 2004-2010 Toyota Sienna

Installation Notes and Tips

Verify inlet diameter, outlet flange style, and overall length against the existing exhaust before installation. This assembly uses a pipe connection inlet and a 2-bolt welded flange outlet, so the vehicle’s exhaust layout should be inspected for matching connection points. For welded assemblies, replace all required parts as noted in the fitment information. Confirm clearance around the exhaust path on the Toyota Sienna before final tightening.

Quality Assurance

Walker designs this resonator and pipe assembly to fit, perform, and sound like the original system. The part number 56166 is built around OE-style tuning and factory-style dimensions for the listed Toyota Sienna applications.

Related reading

This part fits 7 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypeLitersCylindersPositionNotes
2010ToyotaSiennaFWD3.5LV6N/AIf welded assembly, replace all required parts
2009ToyotaSiennaFWD3.5LV6N/AIf welded assembly, replace all required parts
2008ToyotaSiennaFWD3.5LV6N/AIf welded assembly, replace all required parts
2007ToyotaSiennaFWD3.5LV6N/AIf welded assembly, replace all required parts
2006ToyotaSiennaFWD3.3LV6N/AIf welded assembly, replace all required parts
2005ToyotaSiennaFWD3.3LV6N/AIf welded assembly, replace all required parts
2004ToyotaSiennaFWD3.3LV6N/AIf welded assembly, replace all required parts
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 68460BRExhaust — 290-01568490