WALKER 16681

WALKER part number 16681 is a catalytic converter in the Exhaust & Emission system. This catalog matches it to 100 year-and-engine configurations from 2012 to 2026.

Verified fitment includes 2026 Chevrolet Silverado 2500 6.6L V8 ; 2026 Chevrolet Silverado 2500 6.6L V8 DIESEL Turbocharged ; 2026 Chevrolet Silverado 3500 6.6L V8 ; 2026 Chevrolet Silverado 3500 6.6L V8 DIESEL Turbocharged ; 2026 Ford F-250 Super Duty 6.7L V8 DIESEL Turbocharged , plus 95 other configurations. See every vehicle this part fits.

Manufacturer specifications
E.P.A. Compliant
Requires Replacement of 55660 Resonatorwith Federal or California Emissions System
Application data published for:
🇺🇸 US 🇨🇦 CA

Frequently Asked Questions

What is WALKER 16681?

WALKER part number 16681 is a catalytic converter with published application data for 100 vehicle configurations from 2012 to 2026. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.

Which vehicles does WALKER 16681 fit?

This catalog matches 16681 to 100 year-and-engine configurations from 2012 to 2026. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.

Is WALKER 16681 OEM or aftermarket?

What matters is the published application data for this part number, not the label on the box. WALKER 16681 is listed with its manufacturer part number so you can compare it to an OEM number or another brand that covers the same fitment.

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