Eliminate excessive oil consumption and smoking exhaust with this OE-quality valve stem seal kit from Corteco.
For vehicles with CNSA or CNSB engine codes only
Eliminate excessive oil consumption and smoking exhaust with this OE-quality valve stem seal kit from Corteco.
For vehicles with CNSA or CNSB engine codes only
Stop leaks and restore engine power
Seals the valve stem in the cylinder head. 6mm
10X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
05-29-2026
Standard sized valve head diameter, factory triple groove keeper setup
Standard sized valve head diameter, factory triple groove keeper setup
High Flow Valve Set
2X Entries Into Our F80 M3 Sweepstakes
Resolve "diesel-like" rattling noises from the cylinder head and restore proper variable valve timing on your classic 1.8T 20V engine.