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Why red line - established in 1979, Red Line Products perform & protect better than any on the market. Fit type: Vehicle Specific. Improves performance - transmission fluid that dramatically reduces temperature, providing thicker oil films between gear teeth and resists throw-off.

Primary case oil - for 1984-to-present V-Twin American motorcycle engines, Twin Cam, including Evolution, and aftermarket engines of similar design. Friction balanced case oil - most synthetics are too slippery for clutch operation.




1. Red Line
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Red Line RED42804 V-Twin Transmission Oil, 1 Pack, 1 Quart
#adRed Line #ad - No compromises. Quiet smooth shifting - v-Twin Transmission oil dampens transmission noise, reducing the notorious shifting clunk found in these gearboxes.Why red line - established in 1979, Red Line Products perform & protect better than any on the market. Fit type: Vehicle Specific. Improves performance - transmission fluid that dramatically reduces temperature, providing thicker oil films between gear teeth and resists throw-off.
More information #ad
Cutting edge technology - Shockproof technology designed to make a big impact against big impacts. Specifically engineered - Gear oils designed for the latest high-revving four-stroke motocross bikes & ATVs sportbikes.Brand | Red Line #ad |
Manufacturer | Red Line #ad |
Height | 10 Inches |
Length | 16 Inches |
Weight | 1.7 Pounds |
Width | 12 Inches |
Part Number | 42804 |
Model | (42804) |
Warranty | Warranty, Parts:Parts |
More information #ad
2. Red Line
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Engine Oil 1 Quart Bottle, Red Line 42904 V-Twin Primary Case Oil
#adRed Line #ad - Our v-twin primary case Oil is a balanced oil limiting slip and performing a smoother operation. Why red line - established in 1979, Red Line Products perform & protect better than any on the market.Primary case oil - for 1984-to-present V-Twin American motorcycle engines, Twin Cam, including Evolution, and aftermarket engines of similar design. Friction balanced case oil - most synthetics are too slippery for clutch operation.
More information #ad
Perform & protect - this product is for use in the primary chaincase with wet-diaphragm spring clutches. Boosts vehicle performance - Improves clutch operation while reducing wear and temperature, providing a longer clutch lifespan. No compromises. Perfect for motorcycles, ATVs, and Powersports.Brand | Red Line #ad |
Manufacturer | Red Line #ad |
Height | 10 Inches |
Length | 16 Inches |
Weight | 1.7 Pounds |
Width | 12 Inches |
Part Number | 42904 |
Model | 42904 |
Warranty | Limited Manufacturer |
More information #ad
3. Red Line
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Red Line Oil Big Twin 20W50 PowerPack
#adRed Line #ad - 1 quart of v-twin Transmission Oil with ShockProof. Sticker kit & Red Line Oil embroidered hat. Versatile funnel. 1 quart of primary chain Case Oil & 1 bottle of Fuel Injection Cleaner. 5 quarts of 20W50 Motorcycle Oil.More information #ad
Brand | Red Line #ad |
Manufacturer | Red Line Oil #ad |
Height | 9.5 Inches |
Length | 16.5 Inches |
Weight | 15.6 Pounds |
Width | 8.5 Inches |
Part Number | 90226 |
Model | 90226 |
More information #ad
4. Red Line
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1 Quart 32 Ounces, Red Line 42504 20W-50 Motorcycle Oil
#adRed Line #ad - Superior film strength through The Use Of Ester Base Stocks For Protection And Ring Seal. Extended drain Intervals Over Other Brands. Fit type: Vehicle Specific. Runs Smooth.More information #ad
Brand | Red Line #ad |
Manufacturer | Red Line #ad |
Height | 9 Inches |
Length | 4.5 Inches |
Weight | 2 Pounds |
Width | 3.5 Inches |
Part Number | 42504 |
Model | RED42504 |
Warranty | N |
More information #ad
5. Red Line
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Chrome Filter, Red Line 90226 Big Twin 20w50 Power Pack Oil Package with K&N High Performance Oil Filter Complete Kit
#adRed Line #ad - Sticker kit & Red Line Oil embroidered hat. 1 quart of v-twin Transmission Oil with ShockProof. 5 quarts of 20W50 Motorcycle Oil. Versatile funnel. 1 quart of primary chain Case Oil & 1 bottle of Fuel Injection Cleaner.More information #ad
Brand | Red Line #ad |
Manufacturer | Red Line #ad |
Height | 8.43 Inches |
Length | 16.6 Inches |
Weight | 16.1 Pounds |
Width | 9.45 Inches |
Part Number | 90226 |
More information #ad
6. Red Line
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Red Line 42824 V-Twin Transmission Oil, 12/1 Quart
#adRed Line #ad - Package weight: 26. 8 lb. Country of Origin: United States. Package Quantity: 1. Product type: Auto Accessory.More information #ad
Brand | Red Line #ad |
Manufacturer | Red Line #ad |
Height | 9.4 Inches |
Length | 16.7 Inches |
Weight | 24 Pounds |
Width | 12.3 Inches |
Part Number | 42824 |
Model | 42804 CASE/12 |
More information #ad