Skip to content

Walker 16685 Catalytic Converter - Left

Original price $310.93 - Original price $310.93
Original price
$310.93 Includes shipping
$310.93 - $310.93
Current price $310.93 Includes shipping

Seller: PartCatalog (98.8% positive, 47359 ratings)

Brand: Walker

Availability:
5+ in stock, ready to be shipped

Condition: New

Always Free Shipping

Most orders ship out the same business day if ordered before 1pm CST. Return within 30 days for a full refund.

Free Shipping

And 30 day returns

Call or Text

+1 (281) 761-6097

Ships from the USA

Multiple locations nationwide

Fix Now, Pay Later

Options available at checkout

Walker 16685 Catalytic Converter - Left

Designed to comply with EPA standards while delivering premium performance with assured compliance, Walker® Ultra® Direct-Fit Catalytic Converters provide premium performance and are available for import and domestic OBDII (1996 and newer) vehicles.

Vehicle Compatibility Chart

✅ Compatible with 8 vehicles
Year Make Model Liters Cylinders Position Notes
2011 Cadillac CTS 3.6L V6 Left Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31534 and 31379; Ultra Direct Fit Type
2011 Cadillac STS 3.6L V6 Left Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31534 and 31379; Ultra Direct Fit Type
2010 Cadillac CTS 3.6L V6 Left Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31534 and 31379; Ultra Direct Fit Type
2010 Cadillac STS 3.6L V6 Left Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31534 and 31379; Ultra Direct Fit Type
2009 Cadillac CTS 3.6L V6 Left Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31534 and 31379; Ultra Direct Fit Type
2009 Cadillac STS 3.6L V6 Left Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31534 and 31379; Ultra Direct Fit Type
2008 Cadillac CTS 3.6L V6 Left Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31534 and 31379; Ultra Direct Fit Type
2008 Cadillac STS 3.6L V6 Left Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31534 and 31379; Ultra Direct Fit Type

Part Attributes

  • No
  • No
  • 4
  • 4.000
  • 6.25
  • 6.250
  • Stainless Steel
  • Stainless Steel
  • Round
  • Round
  • 4
  • 4.000
  • No
  • Front
  • Direct Fit
  • Regular
  • 2 Bolt Welded Flange
  • 2 Bolt Welded Flange
  • 1
  • 2.000
  • Outside Diameter
  • 1
  • 2 Bolt Welded Flange
  • 2011
  • 2008
  • Cadillac CTS
  • 2008
  • No
  • 2.24
  • 2 Bolt Welded Flange
  • 2 Bolt Welded Flange
  • 1
  • 2.240
  • Outside Diameter
  • 2.24
  • 1
  • 2 Bolt Welded Flange
  • 18
  • 19.250
  • Pre Catalyst
  • Economy
  • Ceramic
  • 170337
  • Specific

Part Interchanges

079-5222, 49170, 50471, 642095, 644041