Vance and Hines 12mm Oxygen Sensor Plugs - Harley-Davidson
About Vance and Hines
Vance & Hines has been building motorcycle exhaust since 1979 and has run factory-backed drag and King of the Baggers programs that feed straight back into its street products. Systems like the Torquer and the 2-into-1 designs are engineered around real dyno work, not just sound — which is why they show up on so many tuned Milwaukee-Eight and Twin Cam builds.
These Vance and Hines oxygen sensor plugs are designed to seal off any unused O2 sensor ports on your Harley-Davidson exhaust system. When you remove a sensor or switch to a different exhaust configuration, these plugs ensure a leak-free seal.
Why riders pick this
- Seals unused 12mm O2 sensor ports on Harley exhausts
- Zinc-plated finish for durability
- Recessed Allen-head design for a clean look
- Copper sealing washers ensure a leak-free fit
- Easy installation for a professional finish
When upgrading your Harley-Davidson exhaust or changing O2 sensor configurations, you often end up with open sensor ports. These zinc-plated Vance and Hines 12mm sensor plugs provide a clean, secure solution to seal those vacant locations. Each kit includes two plugs with copper sealing washers, engineered to prevent exhaust leaks and maintain system integrity.
Secure Your Exhaust System
- Two zinc-plated plugs with a 12mm x 1.25 thread pitch
- Recessed Allen-head design for a clean look
- Includes copper sealing washers for a gas-tight seal
- Prevents exhaust leaks at unused O2 sensor ports
Maintain Peak Performance and a Clean Look
Open O2 sensor ports can lead to exhaust leaks, affecting performance and creating an unsightly appearance. These Vance and Hines plugs are a simple, effective way to address this. They're a smart addition for any rider making exhaust modifications, ensuring your system remains sealed and performing as intended. Confirm your port size to ensure a perfect fit.
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
Common questions
What is the thread size of these sensor plugs?
These Vance and Hines sensor plugs feature a 12mm x 1.25 thread pitch, designed for specific Harley-Davidson O2 sensor ports. Please verify your exhaust port size before ordering.
Do these plugs come with everything needed for installation?
Yes, each kit includes two zinc-plated sensor plugs along with two copper sealing washers, which are crucial for creating a secure, leak-free seal.
Will these plugs prevent exhaust leaks?
Absolutely. The included copper sealing washers are designed to compress and form a tight seal against the exhaust pipe when the plugs are properly torqued, effectively preventing leaks from unused O2 sensor ports.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Vance and Hines |
| TYPE | Exhaust Adapters |
| SKU | T14-612258 |
| WEIGHT | 0.07 lb |