- Formulated for heavily loaded transmissions and gear boxes
- For Big Twin transmissions and final drives
- Recommended for 4, 5 & 6 speed Big Twin transmissions
- Extreme pressure additives reduce wear
- Distinctive red color for leak detection
- Quiets gear whine and improves shifting, reduces transmission clunk
Subcategories
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Engine Oil
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Primary Oil
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Transmission Oil
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Oil Filters
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Brake Pads
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Brake Fluid
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Additives
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Fork & Shocks Oil
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Spark Plugs
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Polish & Detailing
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Chemical Products
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Air Filters
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Fuel Filters
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Brake cleaner &...
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Accesories
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Maintenance Kits
Everything you need to service your Harley-Davidson on your own. In this category, you’ll find complete DIY maintenance kits, including engine oil, transmission oil, primary oil, and high-quality oil filters, designed specifically for Harley-Davidson models. Whether you're doing a routine oil change or preparing for a long ride, these kits ensure your bike stays in peak condition without visiting the shop.
Active filters
Formulated for Harley-Davidson Sportster® transmissions and primary gearboxes. Prevents clutch slipping and chatter, reduces wear, and improves shifting.
Fuel system cleaner for motorcycles. Fully compatible with all gasoline grades. 80 ml treats 5–10 L. Add to the fuel tank each time you refuel to normalize consumption, reduce emissions and remove deposits.
Removes fuel-system deposits, reduces fuel consumption, protects against corrosion and prevents carburetor icing. Improves engine reliability and performance.
Distinctive black ceramic body with red logo; 95% alumina insulator resists heat shock. Multi-rib design prevents flashover. Nickel-plated housing and copper core electrode for corrosion resistance and reliable conductivity.
Replacement cap and plug for Tuff Jug container. Pre-drilled with 3/4" NPT thread and plug. Remove the plug to install a flexible fast-flow spout (sold separately). Not legal for sale or use in California.