Cycle Pro Oxygen Sensor

Cycle Pro Oxygen Sensors: Precision-Fit Replacements for Your Harley

When your motorcycle's fuel injection system is hunting for the right air-fuel mixture, the oxygen sensor is the unsung hero keeping everything in balance. Cycle Pro has built a reputation as a premier manufacturer and supplier of aftermarket replacement parts, with a primary focus on Harley-Davidson, Classic British, and ATV applications — and their oxygen sensor lineup is a direct reflection of that specialized expertise.

Built to OEM Standards, Priced for the Aftermarket

Cycle Pro oxygen sensors are precision-made to meet and exceed OEM specifications, meaning you get factory-level accuracy without paying dealer prices. Each sensor is engineered for a direct-fit installation — no modifications, no adapter hassles, no custom wiring. The sensors directly replace factory Harley-Davidson part numbers, making them a straightforward swap for riders who want reliability without the guesswork.

The Cycle Pro O2 sensor range includes both 18mm narrow band sensors (such as part numbers 14272 and 14273, replacing OEM 27719-07 and 27703-08 respectively) and 12mm narrow band sensors (such as part number 14279, replacing OEM 32700006). This dual-size offering ensures coverage across a broad sweep of Harley-Davidson model families and model years.

Wide Harley-Davidson Model Coverage

Cycle Pro's oxygen sensors are engineered to serve a wide range of EFI-equipped Harley-Davidson platforms, including:

• Touring models — Electra Glide Classic, Electra Glide Ultra Classic, Electra Glide Standard, Tri Glide Ultra Classic, and CVO/SE variants
• Dyna models — Fat Bob (FXDF), Street Bob (FXDB), Low Rider (FXDL), Wide Glide (FXDWG), Switchback (FLD), and Dyna Super Glide Custom
• Softail models — Heritage Softail Classic and related platforms
• Sportster models — including the Nightster XL 1200N and other EFI-equipped variants
• V-Rod models — Night Rod Special (VRSCDX) and related V-Rod platforms

Extra High-Temperature Construction

One standout design detail on Cycle Pro O2 sensors is the extra high-temperature dual shield end. Oxygen sensors live in one of the harshest spots on a motorcycle — threaded directly into the exhaust pipe — where heat cycles are extreme and vibration is constant. The dual-shield construction is designed to withstand these conditions and maintain signal accuracy over the long haul, helping your engine management system dial in fuel trims correctly and keep your bike running cleanly.

Why Cycle Pro for Your O2 Sensor Replacement?

Founded in 2003, Cycle Pro LLC has grown into a well-regarded wholesale manufacturer and distributor of powersports replacement parts, serving distributors, importers, and exporters in the United States and internationally. Their engineering focus on Harley-Davidson-specific applications means their oxygen sensors aren't generic universal-fit parts — they're purpose-built replacements developed with the fitment precision and durability that Harley riders expect. Whether you're wrenching in your garage or running a shop, Cycle Pro O2 sensors deliver a dependable, cost-effective path back to proper closed-loop fuel management.