






🏍️ Keep your V-Twin clutch tight and your ride unstoppable!
Red Line V-Twin Primary Case Oil is a full-synthetic, friction-balanced lubricant designed specifically for 1984 and newer American V-Twin motorcycle engines. It improves clutch performance by reducing slip, operates reliably across a wide temperature range, and is ideal for both stock and modified engines. Backed by decades of racing expertise, this 1-quart oil ensures superior protection and power delivery for your primary chaincase and wet-diaphragm spring clutch.






| Manufacturer | Red Line |
| Brand | Red Line |
| Model | 42904 |
| Product Dimensions | 9.91 x 12.45 x 22.86 cm; 18 g |
| Item model number | 42904 |
| Exterior | Painted |
| Manufacturer part number | 42904 |
| OEM Part Number | 42904 |
| Special Features | 1 Quart |
| Item Weight | 18 g |
| Viscosity | 75W/80W/75W80 sae_grade |
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