Washer

The Washer BER309 from BERT TRANSMISSIONS is a precision component engineered for high-performance automatic transmission assembly and maintenance. This compact washer serves as a critical spacer and load-distribution element in modern transmission builds, particularly in street and racing applications where gear ratios and shift quality demand exacting tolerances. Whether you're rebuilding a Bert transmission for street duty or track competition, this washer ensures proper gear engagement and reduces wear on internal components under sustained load.

Engineered to OEM specifications, the BER309 washer is a thin-profile component measuring 2.95 inches in diameter with a 0.45-inch height, allowing it to fit precisely in tight transmission cavities where spacing is critical. At just 0.01 pounds, it maintains minimal weight while delivering reliable load bearing between planetary gearsets, reaction drums, and clutch packs. The design prevents axial play that can degrade synchronization and cause premature friction-material degradation—a common failure point in aggressive driving conditions where transmission fluid temperatures spike and mechanical tolerance stacking becomes problematic.

Transmission rebuilders and performance mechanics rely on Bert OEM components like this washer to maintain factory shift quality while supporting engine torque increases common in naturally aspirated and turbocharged engine swaps. This part is essential for anyone performing a complete Bert transmission overhaul, ensuring all internal clearances remain within specification during assembly. Keep this washer on hand as a wear item or spare component when servicing your transmission; its small size and weight make it easy to stock multiple units for workshop inventory.