R&D Drive Plate For PRM 601 & 1000 (18 Teeth Spline / 352.5mm OD)

Part No: RND-21R5

21R5 R & D Marine Damper Drive Plate

Fitted between the engine and the gearbox input shaft, a damper drive plate is designed to transmit the engine power to the gearbox, whilst reducing transmitted gear noise and providing a cushioned drive when selecting gear. All R and D Damper Drive plates include a 'failsafe' design.

Also called the Driven Plate, Damper Plate or Clutch Plate, the 21R5 Damper Drive Plate is from the R and D hammer head element range. Common applications for the 21R5 drive plate includes engines fitted with the PRM 601 or PRM 1000 gearboxes, SAE 11½.

R&D drive plate technical details:

- Spline: 18 teeth 12/24 DP spline (40.5mm diameter) for PRM 601 and PRM 1000 gearboxes

- Diameter of back plate which bolts to the engine flywheel: 352.5mm (13.875") SAE 11.5

- Back plate fixing holes: 8 x 10.6mm on 333.4mm SAE11-1/2

- Drive plate maximum thickness: 38.1mm (1.50")

Fitted with the multi-directional 'L' Hammer Head element for 745 Nm 550 ft lb torque, providing a smaller element diameter which is more torsionally flexible than the loop type elements and provides three stage stiffness with up to 9 degrees of deflection. These damper drive plates are also fail safe.

If you are unsure or need any assistance choosing your drive plate please contact our customer support department who will help you find the right parts for your application.