Walker
Quiet-Flow SS

Walker 73040 Exhaust Muffler Assembly - Left

Brand Walker 73040
Position Left
Finish Natural
Body Diameter 11
Inlet Type 2 bolt welded flange
Outlet Type Tip
Body Height 5.5
Body Length 16
Muffler Material Stainless steel
Muffler Shape Oval
Overall Length 32.875
Body Material Stainless steel
Body Width 11
Grade Type Regular
Inlet 1 Type 2 bolt welded flange
Inlet Configuration Offset
Inlet Quantity 1
Muffler Type Reflection
Outlet 1 Type Tip
Outlet Configuration Offset
Outlet Quantity 1
Shape Oval
Product line Quiet-Flow SS
Fits Lexus · 4 vehicles

Stainless steel construction. Uses stainless steel body and muffler materials for improved corrosion resistance.

OE-style direct fit. Built as a direct-fit exhaust replacement with factory-style routing.

Quiet-Flow SS line. Walker’s stainless-steel product line focuses on longer service life.

Cross-references AP Exhaust 7289 for the same application. See all 1.

$137.28Free 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 $137.28
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Overview

Walker Quiet-Flow SS muffler assembly 73040 is a direct-fit exhaust replacement for select Lexus applications. It uses stainless steel construction and an OE-style layout to match the original exhaust path while supporting longer service life than typical aluminized mufflers.

Fits 2013-2016 Lexus ES350, left. The offset inlet and offset outlet with a tip-style outlet help maintain the factory routing and appearance on this application.

Key Features

  • Stainless steel body and muffler construction for corrosion resistance.
  • Oval reflection-style muffler design for a factory-style exhaust layout.
  • 2-bolt welded flange inlet for a secure exhaust connection.
  • Offset inlet and offset outlet configuration for direct-fit alignment.
  • Natural finish with a tip-style outlet.

Product Details

Walker Quiet-Flow SS 73040 is built as an OE-style muffler assembly for drivers who need a replacement that follows the original exhaust geometry. The stainless steel body and muffler materials are a key part of the Quiet-Flow SS line, which focuses on broad-market stainless construction for improved durability compared with standard aluminized designs. This part cross-references AP Exhaust 7289 for the same application.

Fits 2013-2016 Lexus ES350, left. For Lexus ES350 exhaust repair, this muffler assembly supports a clean replacement path when the original unit is worn, noisy, or corroded.

Common Repair Uses

  • Exhaust noise from a damaged or rusted muffler.
  • Corrosion at the muffler body or inlet connection.
  • Factory exhaust fitment loss after replacement work.
  • Outlet or flange damage affecting exhaust sealing.

Installation Notes

Verify inlet and outlet configuration, body dimensions, and left-side fitment before installation. This muffler assembly uses a 2-bolt welded flange inlet and offset routing, so matching the existing exhaust layout is important for proper alignment. Professional installation is recommended for exhaust sealing and hanger alignment.

Quality Assurance

Walker Quiet-Flow SS is positioned as a stainless-steel OE-style replacement line for domestic and foreign vehicles. Part number 73040 is built to provide a direct-fit solution with materials selected for longer life than typical aluminized mufflers.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2016LexusES3503.5LV6LeftPremium; Limited Lifetime Warranty; Quiet-Flow SS
2015LexusES3503.5LV6LeftPremium; Limited Lifetime Warranty; Quiet-Flow SS
2014LexusES3503.5LV6LeftPremium; Limited Lifetime Warranty; Quiet-Flow SS
2013LexusES3503.5LV6LeftPremium; Limited Lifetime Warranty; 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 — 7289