HomeExhaust > Catalytic ConverterWalker 83177 Catalytic Converter - Front
Part #: 83177

Walker 83177 Catalytic Converter - Front

CalCat, Front
3 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$478.09Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
CalCat, Front
Fitment: Acura and Honda, Accord and TSX
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

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.

BrandWalker
Part Number83177
PositionCalCat, Front
Mounting Hardware IncludedYes
Universal Or Specific FitSpecific
Grade TypeRegular
Body ShapeRound
Inlet Type4 bolt welded flange
Outlet Type3 bolt welded flange
Body Height4.125
Body Length4.75
Body Length4.750
Body Width4.125
Inlet Quantity1
Body MaterialStainless steel
Outlet Quantity1
California Air Resources Board (CARB) CertifiedYes
Substrate MaterialCeramic
Overall Length16.5
Overall Length16.500
Air TubeNo
Air Tube CountNo
Converter Quantity1
Inlet 1 Type6 bolt welded flange
Inlet Type6 bolt welded flange
Max Year Covered2009
Min Year Covered2008
Most Popular Make / ModelHonda accord
Most Popular Year2008
Outlet 1 Type3 bolt welded flange
Outlet Type3 bolt welded flange
Oxygen Sensor LocationPre and post catalyst
Product GradeEconomy

This part fits 3 vehicles. Search below:

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

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.