






🏍️ Ride smoother, last longer—unlock your V-Twin’s true potential!
Red Line 42904 V-Twin Primary Oil is a friction-balanced synthetic oil designed specifically for 1984-to-present V-Twin American motorcycle engines. It enhances clutch operation by reducing slip, wear, and temperature, thereby extending clutch life. Ideal for primary chaincases with wet-diaphragm spring clutches, this premium oil boosts overall vehicle performance and reliability.






| Viscosity | 75W/80W/75W80 sae_grade |
| Brand | Red Line |
| Vehicle Service Type | Car |
| Flash Point | 232 Degrees Celsius |
| UPC | 083522429047 |
| Automotive Fit Type | Universal Fit |
| Global Trade Identification Number | 00083522429047 |
| Manufacturer | Red Line |
| Size | 1 Quart |
| Model | 42904 |
| Item Weight | 0.634 ounces |
| Product Dimensions | 3.9 x 4.9 x 9 inches |
| Item model number | 42904 |
| Is Discontinued By Manufacturer | No |
| Exterior | Painted |
| Manufacturer Part Number | 42904 |
| OEM Part Number | 42904 |
Trustpilot
2 weeks ago
2 weeks ago