Athena S410195006016 Cylinder base gasket FR/RR .020" – HD Evo BT 84-99

Athena S410195006016 Cylinder Base Gasket FR/RR .020 – HD Evo BT 84-99: Reliable Seal for Smooth Rides

Keep your Harley-Davidson Evo Big Twin running strong with the Athena S410195006016 Cylinder base gasket FR/RR .020. This gasket ensures a perfect seal between the cylinder and crankcase, preventing leaks and maintaining optimal compression. Designed specifically for HD Evo BT models from 1984 to 1999, it offers a precise fit that helps your engine perform consistently without costly downtime.

Features and Benefits of Athena S410195006016 Cylinder Base Gasket FR/RR .020 – HD Evo BT 84-99

• Exact Thickness: .020 inch thickness for ideal sealing and proper cylinder alignment.
• Durable Material: Crafted from advanced composite materials to resist heat and pressure.
• Perfect Compatibility: Tailored for Harley-Davidson Evolution Big Twin engines (1984-1999).
• Leak Prevention: Creates a tight seal to stop oil and gas leaks, protecting your engine.
• Easy Installation: Fits precisely, reducing installation time and hassle.

Choosing Athena means trusting a brand known for precision-engineered motorcycle parts. This gasket delivers long-lasting durability and consistent engine performance, all at an affordable price that keeps your bike running without breaking the bank. Whether you're rebuilding or maintaining your Evo, this gasket is a smart investment for smooth, reliable rides every time.

3-1/2" bore. Front/rear. 0.5mm (.020") reinforced fiber. Type 'A'. Standard thickness. This gasket is made of MotorGasket M0109, a material developed and produced by Athena. MotorGasket M0109 is a high-quality asbestos-free gasket material, consisting of a blend of mineral fibers, aramid fibers, and NBR rubber. It exhibits excellent sealing capabilities with gases and fluids, along with adaptability features, making it suitable for use under moderate pressures. OEM replacement reference 16774-86A. Note: Type 'A' and 'B' Evolution base gaskets explained. There are 2 types of cylinder base gaskets for Evolution models available. For convenience sake we call them 'type A' (early style) and 'type B' (late style). - Type A' gasket: Was introduced on the 1984 Evolution Big Twin models, and can be used on all of the 84-99 1340cc Evo models and will follow the contours of the cylinder base perfectly. They will fit 86-22 Evo XL, but stick out at the cylinder base. This can be a problem with silicone beaded base gaskets. - Type B' gasket: Was introduced on Evolution XL Sportster models in 1986, and will fit all Evo XL models, but also all 84-99 Evo 1340cc models although the Big Twin cylinder base is a bit larger than the gasket. The 'type B' is the only gasket type that 'The Factory' supplied from 1986 onwards for both Evo Big Twin and Evo XL Sportster models. Both type 'A' and type 'B' have identical inner bore diameter, oil hole and stud hole locations. Gaskets for front & rear cylinder are identical. Only difference between the 'A' & 'B' gaskets is the outside perimeter.