Skip to product information
1 of 1

Namura Top End Repair Kit for Yamaha 99-06 DT125R DT125X .030 Over Bore 56.75mm

Namura Top End Repair Kit for Yamaha 99-06 DT125R DT125X .030 Over Bore 56.75mm

Regular price $142.89
Regular price Sale price $142.89
Sale Sold out
Shipping calculated at checkout.

FREE, Fast Shipping on all orders!

Top End Repair Kit for Yamaha

This top end repair kit includes all necessary components to rebuild the cylinder assembly for Yamaha DT125R and DT125X models from 1999 to 2006, with a .030 overbore size of 56.75mm.

Overview

This top end repair kit is designed to restore compression and performance in your Yamaha DT125R or DT125X engine. It contains a piston, rings, wrist pin, and gaskets for a complete top end overhaul. The .030 overbore piston (56.75mm) allows you to refresh a worn cylinder bore.

Built For Performance

  • Includes a precision-machined piston with a .030 overbore (56.75mm)
  • High-strength piston rings for improved seal and longevity
  • Heat-treated wrist pin and circlips included
  • Complete gasket set for a reliable rebuild
  • Designed for easy installation with standard tools

Fits These Machines

  • for Yamaha DT125R (1999-2006)
  • for Yamaha DT125X (1999-2006)

On-The-Job Use

  • Used for top end rebuilds on Yamaha DT125R and DT125X off-road motorcycles
  • Ideal for restoring lost power and compression in high-mileage engines
  • Commonly selected when boring the cylinder to .030 oversize

Specs At A Glance

Bore Size 56.75mm (.030 overbore)
Oversize .030
Kit Includes Piston, rings, wrist pin, circlips, gaskets

Good To Know

Q: Does this kit include a cylinder head gasket? A: Yes, the gasket set includes the base and head gaskets for a complete top end seal.

Q: Can I use this kit with a standard bore cylinder? A: No, this kit is for cylinders that have been bored to .030 oversize (56.75mm). Standard bore is 56.5mm.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.

Get it between -

View full details
Your cart
Product Product subtotal Quantity Price Product subtotal
Solid Spare Namura Top End Repair Kit for Yamaha 99-06 DT125R DT125X .030 Over Bore 56.75mm
Namura Top End Repair Kit for Yamaha 99-06 DT125R DT125X .030 Over Bore 56.75mm
Namura Top End Repair Kit for Yamaha 99-06 DT125R DT125X .030 Over Bore 56.75mm
$142.89/ea
$0.00
$142.89/ea $0.00