Walker 50070 Exhaust Muffler Assembly
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Walker
 Quiet-Flow SS

Walker 50070 Exhaust Muffler Assembly

Brand Walker 50070
Inlet Outside Diameter 2.5
Finish Aluminized
Body Diameter 9
Inlet Type Pipe connection
Outlet Type Tip
Body Height 7
Body Length 20
Muffler Material Stainless steel
Muffler Shape Oval
Overall Length 35
Body Material Stainless steel
Body Width 9
Grade Type Regular
Inlet 1 Outside Diameter 2.5
Inlet 1 Type Pipe connection
Inlet Configuration Offset
Inlet Quantity 1
Muffler Type Combination
Outlet 1 Outside Diameter 2.5
Outlet 1 Type Tip
Outlet Configuration Offset
Outlet Quantity 1
Shape Oval
Product line Quiet-Flow SS
Fits Hummer · 2 vehicles

OE-style replacement. Direct-fit muffler assembly for straightforward exhaust service.

Stainless-steel construction. Helps extend service life versus typical aluminized mufflers.

Quiet-Flow SS line. Walker’s stainless-steel muffler family for OE-style applications.

Cross-references AP Exhaust 40021 for the same application. See all 1.

$170.10Free 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 $170.10
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
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Overview

Walker Quiet-Flow SS muffler assembly 50070 is a direct-fit OE-style exhaust replacement for select Hummer H3 applications. It combines stainless-steel construction with an oval combination muffler design for a service-ready fit and longer life than typical aluminized mufflers.

Key Features

  • Stainless-steel body and muffler construction for improved corrosion resistance.
  • Direct-fit OE-style replacement for easier exhaust service.
  • Oval combination muffler design with offset inlet and offset outlet.
  • 2.5-inch inlet and 2.5-inch outlet pipe connections.
  • Aluminized finish with a regular-grade construction.

Detailed Description

Walker Quiet-Flow SS 50070 is built as an exhaust muffler assembly for drivers who need a replacement that matches the original system layout without changing the vehicle’s exhaust routing. The stainless-steel body and muffler material help extend service life compared with typical aluminized mufflers, while the oval shape and offset connections support a clean OE-style installation. This part cross-references AP Exhaust 40021 for the same application. Fits 2006-2007 Hummer H3, N/A.

What It Solves

  • Exhaust noise from a worn or damaged muffler.
  • Corrosion-related muffler deterioration.
  • Fitment issues from a non-OE-style replacement.
  • Exhaust system service needs on select Hummer H3 models.

Installation Notes

Fits 2006-2007 Hummer H3, N/A. Verify inlet and outlet sizing, overall length, and offset configuration before installation. If the existing system is welded, replace all required related parts during service to maintain proper alignment and sealing.

Quality Assurance

Walker Quiet-Flow SS is part of Walker’s stainless-steel muffler line, engineered as a direct-fit OE-style replacement for domestic and foreign vehicles.

Related reading

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersNotes
2007HummerH3Base3.7LL5Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006HummerH3—3.5LL5Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 40021