All Wiseco 4-stroke top end kits include 1 piston, 1 ring set, 1 wristpin, 2 circlips and gaskets unless otherwise noted
Wiseco top end kits are sold by application and bore size. To ensure you receive the correct kit for your application, you must know the standard bore size to make sure you are ordering either the standard or correct amount of oversize that you need. If you have any questions, please email us.
3720XP - 3.720 XP RING SET 4795M09450 - Suz DRZ/Z400 00-9/Kaw KLX/KFX400 03-6 CW20 - ROUND WIRE PIN LOCKS 20MM (PAIR) S549 - PIN-20MM X 2.002"-UNCHROMED W6103 - GASKET KIT-SUZ/KAW 400 '00-08 95MM
Product Note:
Specification
Details
Bore
94.5 mm
Country of Origin
USA
Number of Pistons Included
1 Piston
Size Over Standard
Stock
Vehicle Fitment
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
Wiseco always makes a great quality product. Ive used them many times over the years an never had failures. Failures mostly happen due to lack of preventive mat. Nothing last forever!
Thanks
By James B. on
Verified Purchaser
Worked great.
Wiseco Piston
By Terry C. on
Verified Purchaser
Excellent part.
Awesome parts!
By Michael C. on
Verified Purchaser
I ordered this piston kit and an Athena Cylinder as well. All parts were correct, well priced, and arrived in good shape ready to go on.
Great product
By Jacob L. on
Verified Purchaser
5 stars
Wiseco Piston Kit
By Jacob L. on
Verified Purchaser
5 stars
Perfect fit
By Nathaniel P. on
Verified Purchaser
Perfect fit, correct size rings came with it, and gaskets were a perfect fit, and the wrist pin was pristine.
Great product
By Debbie A R. on
Verified Purchaser
Great product! Great price! Thank you!
Got it for the Polaris 250 I had bored .50 over
By Anthony L. on
Verified Purchaser
I never write reviews but then again I've never been this satisfied with service. I ordered it Thursday got it Saturday kids were riding Sunday! Honestly super impressed by how fast it got here, it was in great shape and fit like a glove.
Love the part
By Robert O. on
Verified Purchaser
Awesome, thanks.
Wiseco Piston Kit
By Tracy M. on
Verified Purchaser
Part was exactly what we ordered.
She’s a ripper!
By Zach T. on
Verified Purchaser
I’ve put about 30 hours of hard riding on this and it’s been holding up well! I highly recommend it. Just be sure to fully warm up your engine before doing anything hard on the engine.
Great quality and value
By bob h. on
Verified Purchaser
Very impressed with the design of the pistons, added oil ports in the ring grooves, the machining is high quality, the detailed packaging show how much pride they take in their work.
Wiseco Piston
By Robert S. on
Verified Purchaser
5 Stars
Awesome piston and preforms perfectly.
By Billy K. on
Verified Purchaser
Very high quality piston just like you would expect from Wiseco. Shipped quickly and very well packaged. Yamaha Bigbear 350 is running better than it ever has after a top end rebuild and a carb kit. Honed out the OEM cylinder and ring gap was .018 with the rings sent. Specs said 16-20 so right in the middle. Very clear instructions on checking gap and positioning ring gaps on piston. 93 Octane and thing is way snappier on tip-in than it ever has been. Totally satisfied with Wiesco on this one.
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Verified Purchaser
