Product DescriptionSILVERLINE STEEL BACK MAIN BEARINGS
\nManufactured in Mexico by Silverline -an Original Equipment Supplier. Top engine builders will tell you that all aluminum center main bearings can cause increased bearing wear or premature failure and will eventually pound-out the center main web of the engine case due to the bearing's softer construction. The cure...new Silverline Engine bearings - with Steel Backing and an Aluminum Face. OEM Quality Main Bearings with STEEL Backing. Available in sizes to fit most case and crank combinations.
\n\nLINE BORED CASE / STANDARD CRANKS ,W/1.00MM O/S THRUST
111 198 471OSMX 98-1710-S -Main Brg. Set, .50mm/STD/1.00mm, 1200-1600cc