Kyosho 74035-07 Precision Back Plate Set for KE21V Engines  [KY-74035-07]

Back plate service overview for KE21V engines

This back plate set is a scale replacement component engineered for the KE21V engine family. It fits the rear of the crankcase to reestablish the interface where wear or damage has compromised sealing or alignment.

The primary role of the back plate is to seal and locate the crankcase rear while providing the mounting surface for adjacent parts. A worn back plate can lead to oil seepage, loss of crankcase pressure, or misalignment of the crankshaft and bearings. Installing a correct-fit replacement restores the intended geometry without changing timing or internal clearances.

Installers familiar with glow-engine rebuilds will find the procedure straightforward: remove the exhaust and cooling head as needed, drain fluids, and unbolt the rear cover following the engine maker's disassembly sequence. Clean mating faces of gasket residue before fitting the new plate and torque fasteners to the values recommended in the service instructions. After assembly, confirm bearing seating and correct shaft endplay.

Use this component as a maintenance or rebuild item rather than a performance modification; it returns original fitment and supports predictable engine operation during normal service intervals. Keep sealing faces clean and inspect the plate during routine maintenance to extend the life of the engine assembly.

A reliable replacement for KE21V engine rebuilds, the 74035-07 back plate helps reestablish sealing and alignment to maintain consistent engine behaviour in model applications.