American made Oxygen Sensors for late model Harley-Davidsons. Precision made for outstanding performance and manufactured to meet and exceed OEM specifications. Direct replacement for 12mm 2010-2016/2017* stock applications using p/n 27729-10.*
• Direct fit, no modifications needed
• Extra high temperature dual shield end
• Improved engine performance
• Meets OEM specifications
*Fitment change: Harley began using front O2 sensors with longer wire leads in later 2017 models. These models used a sensor with a lead wire of 48" instead of the shorter leads found on most 2010-2016 and early 2017 FL models. If you have a 2017 FL model please
measure your front sensor lead wire before ordering. Sensors with a 48" lead wire must use the 2018 O2 Sensor found here:
2018 O2 Sensor Front 32700046
The change applies to late 2017 FL touring Front sensors only
Replaces Harley Davidson® OE # 27729-10
*Please verify correct fitment as referenced in your factory service manual.
Returns or exchanges are not accepted on electrical or sensor items.
Not for use or sale in California
Pictured product appearance is subject to change.
As a manufacturer and supplier we are unable to provide any repair or diagnostic advice. We make no claims nor guarantees that products will fix or solve any preexisting conditions with your motorcycle. Please consult a factory service manual or qualified motorcycle technician.
Replaces Harley OE p/n 27729-10.
| Harley P/N |
Model |
Year |
Position |
O2 Sensor Type |
| 27729-10 |
FLH, FLT Touring |
2010-2016
2017 (early)* |
Front |
4 Wire, 12mm, short lead |
*2017 FL late model year change: If you have a 2017 FL model please measure your front sensor lead wire before ordering. Some late model sensors utilized a longer 48" lead wire and must use the 2018 O2 Sensor found here: 2018 O2 Sensor Front 32700046