This is a pair (x2) of Factory Big Dog Motorcycles Oxygen Sensors for Fuel Injected EFI Big Dog models. Fitment is as follows:

Bulldog: 2007
Bulldog Bagger: 2009-11
K-9: 2008-11
Mastiff: 2008-11
Pitbull: 2008-11
Wolf: 2009-11

Big Dog Motorcycles was established in 1994 and we are excited to be a solid company in the industry today with almost 35,000 of our bikes still traveling the roads all over the world. We have continued to improve part reliability and part support for past models by replacing obsolete part tooling and implementing updated electrical systems and components for support on older Big Dog Motorcycles in the field. We are the only genuine OEM manufacturer of Big Dog Motorcycles bikes and Big Dog Motorcycles parts. We are currently manufacturing new Big Dogs and new Big Dog Parts.

Call us for Genuine Factory OEM Big Dog Motorcycles parts at 3162608039

WARRANTY INFORMATION; All Big Dog Motorcycles parts & accessories come with a 6-month limited warranty. All warranty return shipping/expenses must be paid by the buyer (we will NOT issue call tags regardless of the item size or weight for shipping costs). All items carry a "Limited Warranty" meaning; we will exchange the part for the identical part or provide credit to an equal or greater value item that we offer for sale. Warranty returns will NOT be paid via “refund’. Big Dog Motorcycles warranty covers the value of your parts ONLY. We will NOT pay you or the shop labor time for removal & reinstall of your warranty part(s). All warranty return parts are approved or denied at the sole discretion of Big Dog Motorcycles prior to issuing replacement parts or replacement credit. Please allow 3-5 business days for your warranty return processing.