Bel-Ray Synthetic Engine Oil Change Kit For 1984-Up Harley Davidson Big Twin and Sportster
Keep your V-Twin running strong between long hauls without paying for fluids you don’t actually need. This focused kit pairs premium full-synthetic engine oil with a matched filter and drain-plug o-ring — delivering the cold-start confidence, sustained protection, and extended drain intervals that serious riders expect from every service.
Key Features
- Single-box engine oil service — engine oil, filter, and drain-plug o-ring included in one purchase
- HiFlofiltro HF171 series oil filter included in black or chrome with a pre-welded hex nut for tool-assisted removal
- Exclusive Bel-Ray anti-wear chemistry reduces bearing and valve train wear and prevents piston and ring scuffing
- High-polarity synthetic base oils minimize friction for increased power delivery
- Low-volatility formulation resists viscosity breakdown and prevents sludge and deposit buildup for longer drain intervals
- Advanced multi-grade formula enables safe cold starts and maintains protection across a wide operating temperature range
- High flash point limits oil burn-off during sustained high-temperature operation, reducing consumption between services
Technical Specifications
- Engine Oil: Bel-Ray V-Twin Full-Synthetic 20W-50 — Synthetic Ester and PAO base
- Engine Oil Rating: API SN / JASO MA2
- Oil Filter: HiFlofiltro HF171 series — Black or Chrome
Kit Contents by Platform
| Kit | Engine Oil | O-Rings |
|---|---|---|
| Big Twin | ||
| Evolution / Twin Cam (1984-2017) | 4 Liters | 1 |
| Milwaukee-Eight (2017-Up) | 5 Liters | 1 |
| Sportster | ||
| XL Sportster (1986-2022) | 4 Liters | 1 |
Fitment Notes
- Kit contents are platform-specific; Big Twin, Milwaukee-Eight, and Sportster kits are not interchangeable
- This kit services the engine compartment only — transmission and primary chaincase fluids are not included and must be serviced separately
- Riders with a 2017 model year should confirm their engine generation (Twin Cam or Milwaukee-Eight) before selecting a kit, as both were produced that year
- Please review the Fitment tab for the complete year and model compatibility breakdown
