Home / Engine and Pump Base Plate for 3 to 5 HP Engine - P2 Engine and Pump Base Plate for 3 to 5 HP Engine - P2 By Sunny Mountain Prospectors $39.95 Used as a base mounting plate for engines 3 to 5 hp. This heavy duty base plate has rubber shocks for mounting base plate with mounting bracket for engines and compressors. Title Default Title Default Title Add to cart Share this