3M3 Boat Engine Damper Drive Plate from R&D Marine

Fitted between the marine 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 3M3 Damper Drive Plate is from the R and D Loop element range and has a multi-hole back plate for different engine fixings.

The technical details:

- Spline: 26 teeth 20/40 DP (35.4mm diameter) for Borgwarner 70, 71, 72 & 73 gearboxes, PRM Inline gearboxes, Paragon P series, Technodrive TN90, 170, 260, 345, 485, 545 & 880 gearboxes, TMP 1200 & 1500, Twin Disc 501 & 502 gearboxes, some Volvo saildrives, ZF IRM 220A & Hurth HBW 250 and HSW gearboxes.

- Diameter of drive plate back plate which bolts to the engine flywheel: 336.5mm (13.24")

- Back plate fixing holes: Multi hole back plate offering 6 x 8.1mm on 200mm PCD, 6 x 8.1mm on 210mm PCD, 6 x 8.1mm on 263mm PCD, 6 x 8.1mm on 269.9mm PCD, 6 x 8.1mm on 276.3mm PCD, 6 x 8.1mm on 289mm PCD, 6 x 8.1mm on 295.3mm PCD, 6 x 8.8mm on 304.8mm PCD, 6 x 8.1mm on 314.4mm PCD and 6 x 9.5mm on 320.7mm.

- Maximum thickness of drive plate: 35mm (1.38")

Fitted with a type M loop element for 540 Nm 400 ft lb torque, the 3M3 drive plate can be mounted either round on the flywheel and rotated in either direction. This drive plate element will provide linear stiffness up to 3 degrees of deflection and is failsafe.

Drive plate 3M3 can replace Borgwarner drive plates 10-04-650-006 (10-04-650-406), 10-04-650-007 (10-04-650-407), AS5-K2C (AS5K2C) and AS7-K2C (AS7K2C).