Description
If you’re running a 2000-2006 KTM 400 EXC, valve wear directly impacts combustion efficiency and engine longevity. The HOT CAMS Steel Exhaust Valve (8400038-1) is engineered as a direct OEM replacement that restores precise sealing and thermal durability—critical for maintaining consistent power delivery and reliability, whether you’re trail riding or pushing hard in competition. This forged-steel valve pairs advanced surface treatments with precise machining to outlast stock components and handle the demands of high-RPM operation.
- Forged one-piece construction
- Precision machined head
- Nitride coating applied
- Induction hardened stem
- Polished valve surface
- OEM keeper compatible
- Enhanced wear resistance
- Improved sealing geometry
- Direct bolt-on fit
- KTM 400 EXC specific









