Restore top-end performance with the Vertex Pistons VTK23630A-3 Top End Piston Kit, designed for select KTM 250 two-stroke models. The exact-fit piston is engineered to match the cylinder bore for strong compression, improved power delivery and reliable engine performance while helping reduce blow-by and oil consumption. This complete kit includes the piston, piston rings, wrist pin and circlips required for installation.
The piston skirt features a high-tech molybdenum disulfide (MoS2) coating that supports faster break-in and helps extend piston service life. Vertex Pistons also applies a T-5 heat-treating, hardening and tempering cycle to improve durability under demanding powersports riding conditions. The result is a performance-focused replacement piston kit suitable for maintenance, rebuilding and top-end service.
This Vertex Pistons kit fits select 2015 KTM 250 SX and 250 SX-F models, as well as 2023 KTM 250 SX and 250 XC models. It also fits 2024 KTM 250 SX, 250 XC and 250 XC-W models, along with 2025 KTM 250 SX, 250 XC and 250 XC-W models. Verify the exact year, model and cylinder specifications before ordering to ensure proper fitment. This product is intended for powersports applications and may not be emissions-approved for use on public roads or in regulated applications.
Features: