Bel-Ray Synthetic Engine Oil Change Kit Fits Harley-Davidson Big Twin and Sportster 1984-Up
Full-synthetic engine-side service, pre-bundled per platform. One box carries the right engine fill for Sportster, Big Twin, or Milwaukee-Eight, paired with a fresh filter. Drop the sump, spin on a new filter, and refill with V-twin-spec synthetic oil that holds its viscosity through long runs and high case temperatures.
Key Features
- Engine-only oil-change kit sized per platform variation, intentionally omitting transmission and primary lubricants so riders can service the engine on its own interval
- Bel-Ray V-Twin Synthetic Engine Oil 20W-50 – a full-synthetic blend built on a polyalphaolefin (PAO) and synthetic ester base, rated API SN and JASO MA2 for V-twin wet-clutch compatibility
- HiFloFiltro HF171 racing-style oil filter included in Black (HF171BRC) or Chrome (HF171CRC) finish, both with a pre-welded 17 mm hex nut for easier removal
- Engine drain-plug O-ring included for a sealed refit
- Companion product to the matching 3-hole complete kit family for riders who service the transmission and primary on separate intervals
Technical Specifications
- Engine Oil: Bel-Ray V-Twin Synthetic Engine Oil 20W-50 (PAO + synthetic ester base, full-synthetic)
- Engine Oil Rating: API SN, JASO MA2
- Engine Oil Quantity: 4 liters (Sportster, Big Twin Evo/TC) or 5 liters (Milwaukee-Eight)
- Oil Filter: HiFloFiltro HF171 series racing-style with pre-welded hex nut – Black (HF171BRC) or Chrome (HF171CRC)
- OEM Filter Cross-Reference: 62700296, 63731-99, 63731-99A, 63798-99
- Drain-Plug O-Rings: 1 (engine only)
Fitment Notes
- Sportster XL variant: services the engine sump on every 1986-2022 air-cooled Sportster XL (XL883, XL883L, XL883N, XL883R, XL1200 series, XR1200)
- Big Twin Evolution and Twin Cam variant: services the engine sump on 1984-1999 Evolution and 1999-2017 Twin Cam chassis (Touring, Softail, Dyna, FXR)
- Milwaukee-Eight variant: services the engine sump on 2017-Up M8 Touring and 2018-Up M8 Softail at 107, 114, and 117 cubic inches
- This kit does not service the transmission or primary; pair with the matching 3-hole complete kit or service those compartments separately
- Review the Fitment tab for the complete year and model breakdown
- Not affiliated with or endorsed by Harley-Davidson.
