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Description
xPart Overview
The Front & Rear Oxygen Sensor Set (P/N 2780910 & 2772910) is a precision O2 sensor pair designed for the 2014-2017 Harley-Davidson Ultra Limited touring platform (and related Twin Cam 103 / 110 touring models). These wideband-style O2 sensors monitor the air-fuel ratio in the exhaust stream, feeding data back to the ECM to optimize fuel trim, throttle response, and emissions output.
Replacing a sluggish or failed O2 sensor restores smooth idle, cleaner combustion, and consistent fuel economy on heavy-touring bagger builds. Both upstream and downstream positions are included so a complete service can be done in one go. Add to Quote at KOEEP and our team will confirm fitment and ship globally.
Vehicle Compatibility
| Make | Model | Year | Trim/Notes |
|---|---|---|---|
| Harley-Davidson | Ultra Limited (FLHTK) | 2014-2017 | Twin Cam 103 / 110 touring |
| Harley-Davidson | Electra Glide Ultra Classic (FLHTCU) | 2014-2017 | Twin Cam 103 |
| Harley-Davidson | Road Glide Ultra (FLTRU) | 2014-2017 | Twin Cam 103 touring |
| Harley-Davidson | Street Glide (FLHX) | 2014-2017 | Twin Cam 103 (verify connector) |
Key Specifications
| Reference P/N (Front) | 2780910 |
| Reference P/N (Rear) | 2772910 |
| Sensor Type | Heated oxygen sensor (HO2S), 4-wire |
| Position | Front (upstream) + Rear (downstream) — pair |
| Application | V-Twin touring, exhaust air-fuel monitoring |
| Condition | Brand New Aftermarket |
| Warranty | 1 Year |
Why Choose This Part?
- Direct-Fit Pair: Includes both front and rear O2 sensors in one kit — complete the job without sourcing two separate SKUs.
- Stable Air-Fuel Signal: Restores accurate O2 feedback to the ECM, smoothing idle and improving throttle response on V-Twin touring engines.
- Heat-Resistant Construction: 4-wire heated sensor design with shielded harness and high-temp leads suited to bagger exhaust heat.
- 1-Year Warranty: Covered against defects for a full year.
- Free Worldwide Shipping: Delivered to your door at no extra cost.
How to Order
Click Add to Quote above or email us at support@koeep.com with the part numbers 2780910 / 2772910 and your motorcycle's year / model. We'll get back with availability and pricing within 24 hours.
Ready to order this O2 sensor pair?
Click Add to Quote or email support@koeep.com with the SKU and your Harley model/year.
Request a Quote →Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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