Vance and Hines Sensor Plugs — Harley-Davidson

Vance & Hines oxygen sensor plugs seal off unused O2 sensor ports on Harley-Davidson exhaust systems. Kit includes two zinc-plated plugs with copper sealing washers to prevent exhaust leaks at vacant sensor locations.

Features

• Two zinc-plated 12mm x 1.25 threaded plugs
• Recessed Allen-head design
• Copper sealing washers included
• Prevents exhaust leaks at unused O2 ports

Specifications

• Brand: Vance and Hines
• Manufacturer Part #: 16935
• Quantity: 2 plugs with washers
• Thread Size: 12mm x 1.25
• Finish: Zinc-plated
• Weight: 0.07 lb
• Category: Exhaust Adapters

Fitment

Fits Harley-Davidson models with unused O2 sensor ports on the exhaust system.

Frequently Asked Questions

What size wrench do I need to install these?

The plugs use a recessed Allen-head design — you'll need a 5mm or 6mm Allen wrench depending on the specific port.

Will these seal properly without leaks?

Yes — the copper sealing washers are engineered to create a gas-tight seal when torqued to spec on the threaded ports.

How many plugs come in a kit?

Two plugs with copper washers — enough for one bike with two unused O2 sensor locations.

Do I need a gasket or sealant with these?

No additional sealant needed. The copper washers provide the seal; just torque firmly to spec.

California Proposition 65 Warning

Vance & Hines oxygen sensor plug kits cover those unused O2 sensor ports

Features

• Includes two zinc-plated, recessed Allen-head, 12mm x 1.25 threaded plugs with copper sealing washers

Specifications

• Brand: Vance and Hines
• Manufacturer Part #: 16935
• Category: Exhaust, Mufflers & Tips / Exhaust Adapters
• Weight: 0.07 lb
• Fitment: Harley-Davidson

WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov