Customer Service (503) 832-7336
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Free standard shipping on orders over $149
We ship to the lower 48 United States. Orders over $149 ship free; a flat rate applies under $149. Estimated delivery dates are shown at checkout based on item availability and the shipping option you choose.
We text or call to confirm sizing & fitment before we ship.
Every Factory SuperBike order includes a free expert check from real riders. Before we ship helmets and gear, we text or call to confirm your size and fit; for parts, we verify fitment to your bike. This is why we don't have to guess and you don't have to gamble.
Helmet & gear orders: reply to our text to confirm and your order ships, typically same day. No reply within 48 hours and we'll call you. Questions now? Call or text (503) 832-7336.
Simplify your Harley-Davidson M8 maintenance with the Maxima V-Twin Synthetic Quick Change Kit 20W-50 with Black Filter (Part #90-129015PB), from Factory SuperBike. Designed for 2017-2025 Harley-Davidson Milwaukee-Eight models, this kit includes 5 quarts of full-synthetic 20W-50 engine oil, a premium black ProFilter with wrench-removal nut, and a drain plug O-ring for a complete engine oil change.
Engineered for 2017-2025 Harley-Davidson M8 Touring and Softail models, this kit ensures smooth operation and long-lasting engine protection. Made in the U.S.A. Explore more Maxima Racing Oils at Factory SuperBike.
Compatible with 2017-2025 Harley-Davidson Milwaukee-Eight (M8) models. Verify vehicle specs before purchase.
| Year | Model |
|---|---|
| 2017-2025 | Electra Glide Standard |
| 2017-2025 | Electra Glide Ultra Limited |
| 2017-2025 | Street Glide |
| 2017-2025 | Road Glide |
| 2017-2025 | Road King |
| 2017-2025 | Softail Deluxe |
| 2017-2025 | Softail Fat Boy |
| 2017-2025 | Softail Heritage Classic |
| 2017-2025 | Softail Low Rider |
| 2017-2025 | Softail Slim |
| 2017-2025 | Softail Street Bob |
| 2018-2025 | Softail Breakout |
| 2018-2025 | Softail Fat Bob |
| 2020-2025 | Softail Low Rider S |
| 2020-2025 | Softail Standard |
Note: Not for sale in California or New York (Prop 65). For complete oil change, consider kits with transmission and primary oils.
Keep your M8 running strong. Limited stock—text DEALS to 503-832-7473 to secure yours today!
© Factory SuperBike 2025
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