Walker
CalCat

Walker 83177 Catalytic Converter - Front

Brand Walker 83177
Position Front
Mounting Hardware Included Yes
Universal Or Specific Fit Specific
Grade Type Regular
Body Shape Round
Inlet Type 4 bolt welded flange
Outlet Type 3 bolt welded flange
Body Height 4.125
Body Length 4.75
Body Length 4.750
Body Width 4.125
Inlet Quantity 1
Body Material Stainless steel
Outlet Quantity 1
California Air Resources Board (CARB) Certified Yes
Substrate Material Ceramic
Overall Length 16.5
Overall Length 16.500
Air Tube No
Air Tube Count No
Converter Quantity 1
Inlet 1 Type 6 bolt welded flange
Inlet Type 6 bolt welded flange
Max Year Covered 2009
Min Year Covered 2008
Most Popular Make / Model Honda accord
Most Popular Year 2008
Outlet 1 Type 3 bolt welded flange
Outlet Type 3 bolt welded flange
Oxygen Sensor Location Pre and post catalyst
Product Grade Economy
Product line CalCat
Fits Acura and Honda · 3 vehicles

CARB certified. Built to meet California emissions standards with assured compliance.

Direct-fit design. Delivers a precise OE-style fit for easier installation.

Stainless steel body. Resists corrosion while the ceramic substrate supports efficient conversion.

$478.09Free 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 β€” free returns if it doesn't
Step 2 — Quantity
Order total $478.09
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

CARB-Compliant Direct-Fit Converter

Walker CalCat 83177 is a direct-fit catalytic converter built for specific front-position applications on the 2008-2009 Honda Accord and 2009 Acura TSX. It is CARB certified for use in California and other states that require CARB-compliant replacement converters, with an OE-style fit for the listed vehicles.

Key Features

  • Direct-fit catalytic converter for specific applications
  • CARB certified for regulated emissions markets
  • Stainless steel body with ceramic substrate
  • Round body design with OE-style flange connections
  • Pre- and post-catalyst oxygen sensor locations
  • Includes front gasket for listed fitments
  • Walker CalCat line focuses on CARB-compliant replacement converters

Product Details

Walker CalCat 83177 is designed for front exhaust placement on the 2008 Honda Accord, 2009 Honda Accord, and 2009 Acura TSX. The converter uses a 6-bolt welded flange inlet and a 3-bolt welded flange outlet, with a stainless steel body and ceramic substrate for a direct replacement layout. The overall length is 16.5 inches, and the round body measures 4.125 inches high by 4.125 inches wide with a 4.75-inch body length. This part number is built to meet CARB standards and is legal for sale and use in California and other states that require CARB-compliant replacement converters. Walker 83177 is a fitment-specific solution for drivers searching for a front catalytic converter for 2008-2009 Honda Accord or 2009 Acura TSX applications.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Uses

  • Replacing a failed front catalytic converter on a 2008 Honda Accord
  • Replacing a front catalytic converter on a 2009 Honda Accord
  • Replacing a front catalytic converter on a 2009 Acura TSX
  • Addressing emissions test failures related to catalyst efficiency
  • Restoring proper exhaust flow after converter damage or clogging

Installation Notes

Verify the engine family number and CARB Executive Order details before installation. This converter is a direct-fit design for the listed front-position applications and uses welded flange connections. Additional part 31556 is noted in the fitment data for installation completion. Confirm oxygen sensor placement, gasket condition, and flange alignment during exhaust service.

Quality Assurance

Walker CalCat converters are designed, tested, and validated to meet CARB standards for the listed applications. Part number 83177 is built for specific vehicle fitment and emissions compliance in regulated markets.

This part fits 3 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2009AcuraTSX2.4LL4FrontCARB Executive Order D-182-62; Engine Family Number (EFN) 9HNXV02.44B9; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional Part(s) Needed To Complete Installation: 31556; Includes Front Gasket; Direct Fit Type; CalCat
2009HondaAccord2.4LL4FrontCARB Executive Order D-182-62; Engine Family Number (EFN) 9HNXV02.4YB3; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional Part(s) Needed To Complete Installation: 31556; Includes Front Gasket; Direct Fit Type; CalCat
2008HondaAccord2.4LL4FrontCARB Executive Order D-182-62; Engine Family Number (EFN) 8HNXV02.4TKR; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional Part(s) Needed To Complete Installation: 31556; Includes Front Gasket; Direct Fit Type; CalCat