KTM 125 SX [2023-2025] - Complete Top End Kit - Cast Pistons

VERTEX Top End Kit with cast pistons for the KTM 125 SX

The complete VERTEX Top End Kit supports the engine overhaul of the KTM 125 SX with coordinated components for the upper engine area. It combines the cast piston with piston rings, wrist pins, locking clips and a top-end seal kit. For this 2T application, the piston pin needle bearing is also part of the kit.

Function and scope of delivery

With the complete scope, the relevant components of the upper engine area can be put together in one step. This makes it easier to plan the overhaul and reduces the need to select individual components separately.

• Cast aluminum piston
• Piston rings
• Piston pin
• safety clips
• Top end gasket kit
• Needle bearing for 2T application

Technical data

• Material: aluminum
• Piston Type: Cast
• Piston compression: standard
• Diameter Ø: 53.98 mm
• Letter oversize: EF
• Oversize: +0.045
• Bore diameter: 54.00 mm
• Rings Quantity: 2
• Stroke: 2T

Vehicle assignment

The VERTEX complete top end kit - cast piston is assigned to the KTM 125 SX from the years 2023-2025.

Factual note

Selection should be based on the specified piston diameter of 53.98mm, oversize +0.045 and bore diameter of 54.00mm.