Model # TPI # Description 0022-..0/1/9 TPI 521 Brake, multi-plate, wet running 0022-320/620 TPI 821 Brake, multi-plate, wet running 0023-brake TPI 961 Brake, spring-applied, multi-plate, wet running 0123-brake TPI 961 Brake, spring-applied, multi-plate, wet running 0128-…-..-…000 TPI 1140 Brake, spring-applied, multi-plate, wet running 0225 TPI 1111 Brake, spring-applied, multi-plate, wet running