Wiseco Performance
Complete Bottom End Rebuild Kit

Part Number: WPC128B
Fits: 1992-01 Kawasaki KX250

• Wiseco now provides an all in one kit for your bottom end
• Made with the toughest materials for increased performance and life span
• Includes the Crankshaft Assembly, Main Bearings and Bottom End Gasket Kit

Wiseco Crankshafts are 4340 steel, core hardened and tempered to reduce stress and optimize tensile strength. The crankshafts are made with a nitriding process for hardening rather than induction heat treated. This eliminates any softening between the journals and any post running deformation. Our crankshafts also feature straight oil holes for the best oiling to the rod journals to insure you get the best crank for your money. Each K1 crankshaft is magnetic particle inspected and held to a maximum tolerance of .0002” journal dimension. Counterweights are placed for optimal load reduction and ease of balancing making less work for you or your builder.

Includes:

• B1022 - Top End Bearing 18 x 22 x 23.5mm
• B1050 - Crank Pin Bearing 24 x 32 x 19.8mm KU
• B5011 - Main Bearing 28 x 68 x 18mm
• Crankshaft
• W5805 - CRANK PIN - HOLLOW - 24MM X 59MM
• W5979 - Thrust Washers (2) 24mm ID x 1.5mm
• WB1091 - Bottom End Gskt Kit Kaw KX250 '92-01
• WPR133 - Rod Kit - Kaw. KX250 '78-07

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