--- product_id: 87156553 title: "Red Line 42904 V-Twin Primary Case Oil, For use with UTVs, ATVs and Sportbikes - 1 Quart (4 Pack)" brand: "red line" price: "26152 kr" currency: ISK in_stock: true reviews_count: 13 category: "Red Line" url: https://www.desertcart.is/products/87156553-red-line-42904-v-twin-primary-case-oil-for-use store_origin: IS region: Iceland --- # Friction-balanced formula Reduces wear & temperature For V-Twin engines Red Line 42904 V-Twin Primary Case Oil, For use with UTVs, ATVs and Sportbikes - 1 Quart (4 Pack) **Brand:** red line **Price:** 26152 kr **Availability:** βœ… In Stock ## Summary > 🏁 Rev Up Your Performance! ## Quick Answers - **What is this?** Red Line 42904 V-Twin Primary Case Oil, For use with UTVs, ATVs and Sportbikes - 1 Quart (4 Pack) by red line - **How much does it cost?** 26152 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/87156553-red-line-42904-v-twin-primary-case-oil-for-use) ## Best For - red line enthusiasts ## Why This Product - Trusted red line brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Pack of Power:** Comes in a convenient 4-pack, ensuring you’re always ready for your next adventure. - β€’ **Smooth Operator:** Friction-balanced to enhance clutch operation, reducing slip and maximizing power transfer. - β€’ **Temperature Tamer:** Designed to lower operating temperatures, prolonging engine life and performance. - β€’ **Unleash Your Ride:** Engineered for 1984-to-present V-Twin American motorcycles, ensuring peak performance. - β€’ **Versatile Compatibility:** Perfectly suited for ATVs, UTVs, and sportbikes, making it the go-to choice for all powersport enthusiasts. ## Overview Red Line 42904 V-Twin Primary Case Oil is a high-performance lubricant specifically designed for 1984-to-present V-Twin American motorcycle engines, including Evolution and Twin Cam models. This 1-quart oil improves clutch operation while reducing wear and temperature, making it ideal for use in the primary chaincase with wet-diaphragm spring clutches. Its friction-balanced formula ensures optimal power transfer, making it perfect for motorcycles, ATVs, and sportbikes. ## Description Buy Red Line 42904 V-Twin Primary Case Oil, For use with UTVs, ATVs and Sportbikes - 1 Quart (4 Pack): Engine Oil - desertcart.com βœ“ FREE DELIVERY possible on eligible purchases Review: Longevity - So far so good Review: TLC for your V-Twin - Best synthetic oil for your V-Twin if your engine is modified (big bore build, or camshaft, etc.). High performance engines put off more heat and this oil is hands down the best I've used thus far to aid with the high heat matter. I use this oil in the summer/high heat seasons and then use AMSOIL for winter storage/minimal riding, just the engine oil. I keep my primary and transmission filled with Red Line all year round. For context, I ride a 2020 Road Glide Limited and live in Northern Virgina by Shenandoah. ## Features - FRICTION BALANCED CASE OIL - Most synthetics are too slippery for clutch operation. Our V-Twin Primary Case Oil is a balanced oil limiting slip and performing a smoother operation - BOOSTS VEHICLE PERFORMANCE - Improves clutch operation while reducing wear and temperature, providing a longer clutch lifespan - PERFORM & PROTECT - This product is for use in the primary chaincase with wet-diaphragm spring clutches. Perfect for Motorcycles, ATVs, and Powersports - PRIMARY CASE OIL - For 1984-to-present V-Twin American motorcycle engines, including Evolution, Twin Cam, and aftermarket engines of similar design - WHY RED LINE - Established in 1979, Red Line Products perform & protect better than any on the market. No compromises ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Red Line | | Brand | Red Line | | Item Weight | 1.92 ounces | | Package Dimensions | 15.75 x 9.5 x 4 inches | | Item model number | 42904 | | Is Discontinued By Manufacturer | No | | Manufacturer Part Number | 42904 | | Viscosity | 5w-30 | ## Product Details - **Brand:** Red Line - **Liquid Volume:** 1 quarts - **Package Information:** Bottle - **UPC:** 613652254846 - **Vehicle Service Type:** ATV, Motorcycle, UTV ## Images ![Red Line 42904 V-Twin Primary Case Oil, For use with UTVs, ATVs and Sportbikes - 1 Quart (4 Pack) - Image 1](https://m.media-amazon.com/images/I/71pFEcmeYZL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Longevity *by P***. on October 6, 2026* So far so good ### ⭐⭐⭐⭐⭐ TLC for your V-Twin *by H***O on September 3, 2026* Best synthetic oil for your V-Twin if your engine is modified (big bore build, or camshaft, etc.). High performance engines put off more heat and this oil is hands down the best I've used thus far to aid with the high heat matter. I use this oil in the summer/high heat seasons and then use AMSOIL for winter storage/minimal riding, just the engine oil. I keep my primary and transmission filled with Red Line all year round. For context, I ride a 2020 Road Glide Limited and live in Northern Virgina by Shenandoah. ### ⭐⭐⭐⭐⭐ Quality *by B***H on September 26, 2026* excellent in all regards --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.is/products/87156553-red-line-42904-v-twin-primary-case-oil-for-use](https://www.desertcart.is/products/87156553-red-line-42904-v-twin-primary-case-oil-for-use) --- *Product available on Desertcart Iceland* *Store origin: IS* *Last updated: 2026-10-25*