Free Shipping Over $250, No Code Needed!

Notice: Product Images may differ from the actual product. Image may be a representation of this item.

Kawasaki KX250F Complete Engine Rebuild Kit – 77mm

Your Price: $835.79

SKU: PWR144-101

In Stock

Wiseco, Garage Buddy Complete Engine Rebuild Kit, 77.00 mm Bore, 13.5:1 CR

Wiseco’s Garage Buddy Complete Engine Rebuild Kits helps save time and money, whether you are working on a dirt bike, UTV or ATV. Available for a wide variety of popular powersports applications, the Complete Engine Rebuild Kits help make powersports engine maintenance hassle-free. The kit includes – A complete crankshaft assembly and OEM-quality main bearings, all necessary gaskets, seals, and O-rings, Wiseco forged piston kit(s) including necessary piston components, Small-end bearing (for two-stroke motorcycle applications), and an hour meter and assembly lube. Covered under 90-day/10-hour warranty against manufacturer defects, the Complete Engine Rebuild Kits give you everything you need for a quick and efficient rebuild.

  • Precision-machined rotating and reciprocating rebuild kit – includes all top and bottom-end components for a complete engine rebuild!
  • Free Wiseco hour meter and bracket included to track maintenance intervals
  • Complete crankshaft with precision machined crank webs for ultimate strength and durability and copper-plated, heat-treated, shot-peened connecting to remove residual stress and smooth surface blends
  • Quality forged piston kit includes rings, wrist pin, and circlips
  • Also includes complete top and bottom end gasket kits
  • Covered under 90-day/10-hour limited warranty

GTIN: 00193564023063

Product Series

Garage Buddy Engine Rebuild Kits

Included Components

Crankshaft Assy, Piston #4904M07700, Top End Gasket #W6255, Bottom End Gasket #WB1003, Main Bearing #B5041, Cam Chain #CC007, Hour Meter w/ Mount #W8063/W8062, Maxima Assembly Lube

Bore Diameter

77.00 MM

Piston Diameter


Compression Ratio Actual


Piston Material


Piston Oversize


Instructions: Enter a value in the un-shaded boxes below as they pertain to your engine.
Note: For pistons BELOW the block @ TDC – value in box must be a POSITIVE number (.000)
Note: For pistons ABOVE the block @ TDC – value in box must be a NEGATIVE number (-.000)
Note: For a DISH piston – value in box must be a POSITIVE number (0.0)
Note: For a DOME piston – value in box must be a NEGATIVE number (-0.0)
Note: Manipulate the DOME/DISH & PISTON to DECK volumes to get the ratio you want.
Enter the number of cylinders of your engine
Finished bore of your engine
Stroke of your engines crankshaft
Rod Length
Ctr. to Ctr. length of your connecting rods
Gasket Bore
Head Gasket bore diameter
Comp. Gasket
Compressed Head Gasket thickness
Block Deck Height
Center of main bearing bore to top of block
Top Ring Down
Top of 1st ring to top of pistons(FLAT)
Chamber Volume
Cylinder Head chamber volume in CC’s
Dome/Dish Volume
DOME (-) or DISH (+) vol. (theoretical) in CC’s
Piston to Deck
Top of BLOCK to top of piston (FLAT) @ TDC
Click “Calculate” for dimension results.
Total Volume
Cylinder Volume
Total cylinder volume in CC’s =
Clearance Volume
All effective vol. above block deck @ TDC in CC’s =
Gasket Volume
Volume of your head gasket in CC’s =
Top Ring Volume
Total volume above the top ring @ TDC in CC’s =
Deck Volume
Volume of area above the pistons @ TDC in CC’s =
Piston Top Land
Piston top land diameter for volume calculations =
1/2 Stroke
1/2 stroke of your engine’s crankshaft in inches =
Compression Ht.
Ctr. of piston pin to top of piston (FLAT) in inches =
Cubic Inches
Cubic inch displacement of your engine =
For the given dimensions, your compression ratio