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Custom 4 Speed Electric Start Oil Tank with Battery Box - Black Custom 4 Speed Electric Start Oil Tank with Battery Box - Black

Made in USA

Retail Price: $119.99
Our Price: $179.99
Center Fill - Premium Oil Tank - Dish Center Fill Center Fill - Premium Oil Tank - Dish Center Fill

Made in USA

Our Price: $139.99
oil-tank-side-fill-harley-sportster-custom-Hex Side Fill - Premium Oil Tank - Hex Flat Side

Made in USA

Our Price: $119.99
S&S Cycle Oil Filter Black - Fits 86 & up Sportster and 84 - 99 Big Twin S&S Cycle Oil Filter Black - Fits 86 & up Sportster and 84 - 99 Big Twin

Our Price: $11.99

(1)
S&S Cycle Oil Filter Chrome - Fits 86 & up Sportster and 84 - 99 Big Twin S&S Cycle Oil Filter Chrome - Fits 86 & up Sportster and 84 - 99 Big Twin

Our Price: $14.99

(1)
Bison Motorsports - Rocker Box Oil Gauge Fitting Bison Motorsports - Rocker Box Oil Gauge Fitting

Made in USA

Our Price: $39.95
1" Mini Oil Pressure Gauge 1" Mini Oil Pressure Gauge

Our Price: $39.99
DIY Pill Style Oil Tank Kit DIY Oil Tank Kit - Dome/Pill

Made in USA

Our Price: $69.95
Sale Price: $59.95
Buy Now and Save: $10.00

(2)
Bison Motorsports Oil Bag - Half Round Flat Side Oil Tank Bison Motorsports Oil Bag - Half Round Flat Side Oil Tank

Made in USA

Retail Price: $149.99
Our Price: $119.99
Buy Now and Save: $30.00

(11)
Premium Oil Tank - Keg - Side Fill Premium Oil Tank - Keg - Side Fill

Made in USA

Our Price: $169.99

(2)
oil-tank-pill-side-fill-harley-sportster Premium Oil Tank - Pill Dome - Side Fill

Made in USA

Our Price: $139.99

(2)
oil-tank-side-fill-harley-sportster-custom Side Fill - Premium Oil Tank - Round Flat Side

Made in USA

Our Price: $139.99

(8)
oil-tank-flat-center-fill-harley-custom-sportster Center Fill- Premium Oil Tank - Round Flat Side

Made in USA

Our Price: $139.99

(2)
DIY Oil Tank Kit for Flat Side Tanks DIY Oil Tank Kit

Made in USA

Our Price: $69.95
Sale Price: $59.95
Buy Now and Save: $10.00

(4)
Oil Pre-Filter with built-in Magnet Oil Pre-Filter with built-in Magnet

Our Price: $39.95

(2)
Oil Temperature Dipstick - 5-3/16" Oil Temperature Dipstick - 5-3/16"

Our Price: $26.99
   
 
We carry a wide selection of custom oil tanks for Harley Sportsters. Bison Motorsports also stocks a selection of oil tank accessories, such as brass barb hose fittings, oil line, and oil filters. We make it easy to add a custom oil bag to your motorcycle. Our selection of tanks come in raw metal, making it easy to paint or chrome.