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Wiseco Pistons PK1778 Top End Piston Kit for Yamaha Kodiak/Big Bear 400 83.5mm

(1993-1999 Yamaha YFM400F Kodiak 4x4; 2000-2004 Yamaha YFM400 Big Bear 2x4; 2000-2006 Yamaha YFM400 Big Bear 4x4; 2007-2012 Yamaha YFM400 Big Bear IRS 4x4)

Manufacturer

Picture for manufacturer Wiseco Pistons

Part Number

PK1778
12 reviews
Sale Price

$252.99

1 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Wiseco PK1778 is a complete top end rebuild kit designed specifically for Yamaha Kodiak and Big Bear 400 ATV engines requiring an 83.5mm overbore. This comprehensive kit contains everything needed to restore your engine's compression and performance.

Complete Kit Includes:

  • High-performance forged piston (part number 4676M) for superior strength and heat resistance
  • Piston rings precision-matched to the bore diameter
  • Wrist pin and circlips for secure piston-to-rod connection
  • Complete top end gasket set for proper sealing

Wiseco forged pistons are manufactured using advanced metallurgy and machining processes to deliver exceptional durability under high-stress conditions. The 83.5mm bore size provides a performance upgrade over stock displacement while maintaining reliable operation. This kit simplifies the rebuild process by including all critical components in one package, ensuring proper fitment and compatibility.

Specifications:

  • Bore Size: 83.5mm
  • Piston Material: Forged aluminum alloy
  • Application: Yamaha Kodiak 400 and Big Bear 400

Products specifications

Fits

1993-1999 Yamaha YFM400F Kodiak 4x4; 2000-2004 Yamaha YFM400 Big Bear 2x4; 2000-2006 Yamaha YFM400 Big Bear 4x4; 2007-2012 Yamaha YFM400 Big Bear IRS 4x4

Great price, easy to work with!

fast, good price

quick

alway easy

good so far :o/

best Price mean money time

Good price w/shipping, and the Amazon login makes it a breeze.

Got what I ordered in good condition and in a reasonable amount of time, looks like a good product, I guess time will tell

great experience but the paypal icon is inactive

Low Prices...... Fast Shipping.... Great Transaction... Thanks so much!!!

GREAT DEAL

It was cool

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