Serpent 904221 Viper 990E Tensioner Plate Race Day Stability  [SER904221]

Keep belt tension steady with the Serpent 904221 on your Viper 990E

Racers seeking dependable lap to lap performance can fit the Serpent 904221 Belt Tensioner Plate to their Viper 990E. The part helps preserve correct belt tension during hard acceleration and braking, reducing the chance of belt slip and uneven wear. It is designed to be a durable addition for regular competitive use.

Practical advantages for racers

Consistent belt tension reduces drivetrain variability and the need for frequent belt adjustments between heats. That stability supports better handling consistency and preserves drivetrain components, so you can focus on setup and race strategy rather than emergency fixes.

Simple upgrade with clear benefits

Once installed, the tensioner plate helps keep power delivery predictable and lowers the risk of mid-session belt issues. It is a compact, effective part for those who prize reliability and lower maintenance during events.