Walker 55586 Exhaust Resonator and Pipe Assembly
OE Quality 60-Day Returns
Walker

Walker 55586 Exhaust Resonator and Pipe Assembly

Brand Walker 55586
Body 1 Height 3.5
Body 1 Length 17
Body 1 Shape Round
Body 1 Width 3.5
Body Material Steel
Finish Aluminized
Inlet Outside Diameter 2.25
Inlet Type Pipe Connection
Muffler Body Length 17
Outlet Outside Diameter 2
Outlet Type Spout
Overall Length 59
Pipe Material Steel
Fits Buick, Chevrolet, Pontiac, and Saturn · 8 vehicles

OE-style sound. Precise tuning delivers the original system's tone and excellent flow characteristics.

Steel construction. Aluminized finish helps resist corrosion for longer service life.

Resonator and pipe assembly. Combines exhaust flow and sound control in one replacement part.

Cross-references Dorman - HELP 54223 for the same application. See all 1.

$74.16Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $74.16
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Exhaust Resonator and Pipe Assembly options

Walker 55586 Exhaust Resonator and Pipe Assembly

Walker 55586 is an exhaust resonator and pipe assembly built for OE-style fit, flow, and sound control. It uses aluminized steel construction with a 2.25-inch inlet outside diameter, 2-inch outlet outside diameter, and a 59-inch overall length for a direct replacement approach on select GM minivans.

Compatible with 2005-2006 Buick Terraza, 2005-2006 Chevrolet Uplander, 2005-2006 Pontiac Montana, and 2005-2006 Saturn Relay with Sport Package applications, this part number 55586 is designed to match original-system tuning and routing. This part cross-references Dorman - HELP 54223 for the same application.

Key Features

  • Exhaust resonator and pipe assembly for OE-style replacement
  • Aluminized steel body and pipe construction
  • Round resonator body with 17-inch body length
  • 2.25-inch inlet outside diameter and 2-inch outlet outside diameter
  • Single pipe connection inlet and spout-style outlet
  • Designed to maintain original exhaust flow characteristics and sound profile

Detailed Description

Walker 55586 is engineered for vehicles that need a resonator and pipe assembly matching the original exhaust layout. The steel body measures 3.5 inches in height and width, with a 17-inch muffler body length and 59-inch overall length, supporting a direct-fit replacement strategy for the exhaust system. For shoppers searching for a Walker 55586 exhaust resonator pipe for 2005-2006 Buick Terraza or Chevrolet Uplander with Sport Package, this part provides the dimensions and connection style needed for a proper service replacement.

Walker uses precise tuning methods to help the assembly deliver controlled exhaust flow and OE-style sound characteristics. The aluminized finish adds corrosion resistance for everyday road use, while the pipe connection inlet and spout outlet simplify alignment with the existing exhaust routing on select Buick, Chevrolet, Pontiac, and Saturn models.

Common Repair Uses

  • Restoring a damaged or rusted resonator and pipe section
  • Correcting exhaust noise caused by a failing resonator assembly
  • Replacing a welded exhaust section on select GM minivans
  • Addressing exhaust flow restriction from a deteriorated pipe assembly
  • Returning the exhaust note to an OE-style sound level

Installation Notes and Tips

Verify inlet and outlet diameters, overall length, and body dimensions before installation. This Walker 55586 assembly is listed for 2005-2006 Buick Terraza, Chevrolet Uplander, Pontiac Montana, and Saturn Relay with Sport Package; if the original system is welded, replace all required exhaust sections during service to ensure proper alignment and sealing. Confirm the vehicle’s exhaust routing and connection style before final fitment.

Quality Assurance

Walker designs this resonator and pipe assembly to fit, perform, and sound like the original system. The part is built around OE-style tuning and construction details to support consistent exhaust service on the listed applications.

Related reading

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelDrive TypeLitersCylindersWheel BasePositionNotes
2006BuickTerraza—FWD3.5LV6—N/Awith Sport Package; If welded assembly, replace all required parts
2006ChevroletUplander—FWD3.5LV6121.1"N/Awith Sport Package; If welded assembly, replace all required parts
2006PontiacMontana—FWD3.5LV6—N/Awith Sport Package; If welded assembly, replace all required parts
2006SaturnRelay—FWD3.5LV6—N/Awith Sport Package; If welded assembly, replace all required parts
2005BuickTerraza—FWD3.5LV6—N/Awith Sport Package; If welded assembly, replace all required parts
2005ChevroletUplander—FWD3.5LV6121.1"N/Awith Sport Package; If welded assembly, replace all required parts
2005PontiacMontanaSV6FWD3.5LV6—N/Awith Sport Package; If welded assembly, replace all required parts
2005SaturnRelay—FWD3.5LV6—N/Awith Sport Package; If welded assembly, replace all required parts
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - HELP — 54223