Regitar USA Ignition Module f/Mercruiser Engines: 350MAG MPI, 4.3L, 5.0L, 5.7L Engines (1981-97) w/THUNDERBOLT Electronic Ignition Brand_MotorGuide S A-RB bearings are put

S A-RB bearings are put through the same process as Shimano’s A-RB bearings but feature shields on both sides of the bearings

prevents backflow from pump into bilge

Length (Inches): 5"

Durable Zytel housing is UV resistant and is sure to withstand the elements for many seasons

Regitar USA Ignition Module f/Mercruiser Engines: 350MAG MPI, 4.3L, 5.0L, 5.7L Engines (1981-97) w/THUNDERBOLT Electronic Ignition Brand_MotorGuide S A-RB bearings are putIgnition Module for Mercruiser Engines: 350MAG MPI, 4. 3L, 5. 0L, 5. 7L Engines (1981 97) with THUNDERBOLT Electronic Ignition Ignition Module for Mercruiser Engines: 350MAG MPI, 4. 3L, 5. 0L, 5. 7L Engines (1981 97) with THUNDERBOLT Electronic Ignition. Engine Brand: Mercury Mercruiser Fitment: 350MAG MPI, 4. 3L, 5. 0L, 5. 7L engines (1981 97) with THUNDERBOLT electronic ignition Brochure (pdf)