Walker
CalCat

Walker 83285 Catalytic Converter - Rear

Brand Walker 83285
Position Rear
Mounting Hardware Included No
Universal Or Specific Fit Specific
Grade Type Regular
Body Shape Round
Inlet Type 3 bolt welded flange
Outlet Type 2 bolt welded flange
Body Height 4
Body Height 4.000
Body Length 8
Body Length 8.000
Body Width 4
Body Width 4.000
Inlet Quantity 2
Body Material Stainless steel
Outlet Quantity 1
California Air Resources Board (CARB) Certified Yes
Substrate Material Ceramic
Overall Length 42
Overall Length 42.000
Air Tube No
Air Tube Count No
Converter Quantity 1
Inlet 1 Type 3 bolt welded flange
Inlet 2 Type 3 bolt welded flange
Inlet Quantity 2
Inlet Type 3 bolt welded flange
Max Year Covered 2006
Min Year Covered 2005
Most Popular Make / Model Nissan maxima
Most Popular Year 2005
Product line CalCat
Fits Nissan · 2 vehicles

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

CARB certified. Meets California emissions standards for assured compliance.

Stainless steel body. Ceramic substrate and welded flanges for durable construction.

$583.13Free 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.

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Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $583.13
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Walker CalCat Direct-Fit Catalytic Converter

Walker CalCat Part Number 83285 is a direct-fit catalytic converter built for CARB-compliant replacement on select Nissan Maxima rear applications. It is engineered for a precise OE-style fit and uses a stainless steel body with a ceramic substrate for the specified emissions application.

Designed for 2005-2006 Nissan Maxima rear fitment, this Walker CalCat catalytic converter is a specific-fit replacement for vehicles requiring CARB Executive Order D-182-62 compliance. The Walker CalCat line focuses on direct-fit emissions components for OBDII and non-OBD vehicles, with application-specific construction that follows the original exhaust layout.

Key Features

  • Part Number: 83285
  • Walker CalCat direct-fit catalytic converter
  • CARB certified for California and other CARB-compliant states
  • Specific fit for rear installation
  • Stainless steel body with ceramic substrate
  • 3-bolt welded flange inlet and 2-bolt welded flange outlet
  • 2.5-inch outlet outside diameter
  • Oxygen sensor location: pre-catalyst
  • OE-style fit for emissions replacement work

Fitment Details

  • Fits 2006 Nissan Maxima, rear. CARB Executive Order D-182-62; Engine Family Number (EFN) 6NSXV03.5G7B; legal for sale and use in California and other states requiring CARB-compliant replacement converters; additional part(s) needed to complete installation - 31540 and 2 of 31334; direct fit type; CalCat.
  • Fits 2005 Nissan Maxima, rear. CARB Executive Order D-182-62; Engine Family Number (EFN) 5NSXV03.5G7B; legal for sale and use in California and other states requiring CARB-compliant replacement converters; additional part(s) needed to complete installation - 31540 and 2 of 31334; direct fit type; CalCat.

What It Helps Address

  • Failed emissions inspection related to a worn catalytic converter
  • Check engine light concerns tied to catalyst efficiency codes
  • Exhaust leakage at the converter flange connection
  • Restricted exhaust flow from a deteriorated converter core
  • CARB compliance requirements for regulated replacement applications

Installation Notes

Verify rear-position fitment, engine family number, and CARB Executive Order requirements before installation. This application uses a 3-bolt welded flange inlet and 2-bolt welded flange outlet, and the product listing notes additional parts needed to complete installation: 31540 and 2 of 31334. Confirm exhaust alignment and sensor placement before final tightening.

Quality Assurance

Walker CalCat converters are designed, tested, and validated to meet CARB standards for the listed application. Part Number 83285 is built as a direct-fit emissions replacement for the specified Nissan Maxima rear fitment.

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelTransmissionLitersCylindersPositionNotes
2006NissanMaximaAutomatic3.5LV6RearCARB Executive Order D-182-62; Engine Family Number (EFN) 6NSXV03.5G7B; 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 - 31540 and 2 of 31334; Direct Fit Type; CalCat
2005NissanMaximaAutomatic3.5LV6RearCARB Executive Order D-182-62; Engine Family Number (EFN) 5NSXV03.5G7B; 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 - 31540 and 2 of 31334; Direct Fit Type; CalCat