4000 1/4 ES 4000 1/8 4000 3/4 ES 4000 3/8 4000 3/8 ES 4000 8MDC 12 4000 8MDC 21 4000 8MDC 36 4000 HOUR KIT - 10-15 HP 4000 HOUR KIT - 5-7.5 HP