Skip to content
Free Shipping on orders over $69.99 to the continental 48 (Alaska & Hawaii orders, call 402-214-0706 to order).
All products have accurate in stock quantities listed, if it shows in stock it’s actually in stock!
Free Shipping on orders over $69.99 to the continental 48 (Alaska & Hawaii orders, call 402-214-0706 to order).
All products have accurate in stock quantities listed, if it shows in stock it’s actually in stock!
Wiseco

Wiseco Forged Series Rebuild Kit - PK1900 Yamaha YZ 450 / WR 450 2014-2018

MPN: PK1900 SKU: 0903-1144
Wiseco

Wiseco Forged Series Rebuild Kit - PK1900 Yamaha YZ 450 / WR 450 2014-2018

MPN: PK1900 SKU: 0903-1144
Availability:
Out of stock
Complete piston kit includes pistons, rings, wrist pins, circlips and top-end gasket kit for one complete engine Wiseco ring types are not interchangeable (i.e., CD is not interchangeable with LC) Wiseco pistons can be fitted only with Wiseco rings Cylinder sleeves must be purchased separately. Specs Piston Material 2618 Aluminum Alloy Product Name Rebuild Kit Type Top End Bore Size 97.00 mm Model Forged Series Piston Diameter 96.95 mm Stroke Length 60.80 mm Units Kit Displacement 449 cc Skirt Coating ArmorGlide® Compression Ratio 12.5:1 Riding Style Off-Road Engine Type 4-Stroke Part Notes Fits Nikasil bore cylinder. Kit Includes: • Piston Kit #40111M09700 • Ring Set #9700ZS • Wrist Pin #708-2050-16-93C • Wrist Pin Retainer Set #CW18 • Gasket Kit #W6691
Sold out
Original price $289.95 - Original price $289.95
Original price
$289.95
$289.95 - $289.95
Current price $289.95

Product Details

Features

  • Complete piston kit includes pistons, rings, wrist pins, circlips and top-end gasket kit for one complete engine
  • Wiseco ring types are not interchangeable (i.e., CD is not interchangeable with LC)
  • Wiseco pistons can be fitted only with Wiseco rings
  • Cylinder sleeves must be purchased separately.

Specs

Piston Material 2618 Aluminum Alloy
Product Name Rebuild Kit
Type Top End
Bore Size 97.00 mm
Model Forged Series
Piston Diameter 96.95 mm
Stroke Length 60.80 mm
Units Kit
Displacement 449 cc
Skirt Coating ArmorGlide®
Compression Ratio 12.5:1
Riding Style Off-Road
Engine Type 4-Stroke

Part Notes

  • Fits Nikasil bore cylinder.
  • Kit Includes:
  • • Piston Kit #40111M09700
  • • Ring Set #9700ZS
  • • Wrist Pin #708-2050-16-93C
  • • Wrist Pin Retainer Set #CW18
  • • Gasket Kit #W6691

Product Description

Features

  • Complete piston kit includes pistons, rings, wrist pins, circlips and top-end gasket kit for one complete engine
  • Wiseco ring types are not interchangeable (i.e., CD is not interchangeable with LC)
  • Wiseco pistons can be fitted only with Wiseco rings
  • Cylinder sleeves must be purchased separately.

Specs

Piston Material 2618 Aluminum Alloy
Product Name Rebuild Kit
Type Top End
Bore Size 97.00 mm
Model Forged Series
Piston Diameter 96.95 mm
Stroke Length 60.80 mm
Units Kit
Displacement 449 cc
Skirt Coating ArmorGlide®
Compression Ratio 12.5:1
Riding Style Off-Road
Engine Type 4-Stroke

Part Notes

  • Fits Nikasil bore cylinder.
  • Kit Includes:
  • • Piston Kit #40111M09700
  • • Ring Set #9700ZS
  • • Wrist Pin #708-2050-16-93C
  • • Wrist Pin Retainer Set #CW18
  • • Gasket Kit #W6691

Part Numbers
Store SKU MFR. Product # Availability
0903-1144 PK1900 Out of Stock
Fitment
This product is vehicle specific. Select your vehicle to confirm fitment.

This Product Fits

Fitment Disclosure

This quick reference fitment information is provided to direct you to our catalog information and the manufacturer's information. Consult manufacturer publication(s) and/or website(s) for specific fitment and application information and other important information. This fitment information is based upon the stock version of the motorcycle or unit referenced and any accessory added or other modification could invalidate the quick reference information provided.

Features

  • Complete piston kit includes pistons, rings, wrist pins, circlips and top-end gasket kit for one complete engine
  • Wiseco ring types are not interchangeable (i.e., CD is not interchangeable with LC)
  • Wiseco pistons can be fitted only with Wiseco rings
  • Cylinder sleeves must be purchased separately.

Specs

Piston Material 2618 Aluminum Alloy
Product Name Rebuild Kit
Type Top End
Bore Size 97.00 mm
Model Forged Series
Piston Diameter 96.95 mm
Stroke Length 60.80 mm
Units Kit
Displacement 449 cc
Skirt Coating ArmorGlide®
Compression Ratio 12.5:1
Riding Style Off-Road
Engine Type 4-Stroke

Part Notes

  • Fits Nikasil bore cylinder.
  • Kit Includes:
  • • Piston Kit #40111M09700
  • • Ring Set #9700ZS
  • • Wrist Pin #708-2050-16-93C
  • • Wrist Pin Retainer Set #CW18
  • • Gasket Kit #W6691