4P2 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 4P2 Gearbox Damper Drive Plate is from the R and D Loop element range. Common applications for the 4P2 drive plate include Ford marine engines such as the 2725.

The technical details:

- Spline: 26 teeth 20/40 DP (35.4mm diameter) for Borgwarner 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 IRM220A & Hurth HBW 250 and HSW gearboxes.

- Diameter of drive plate back plate which bolts to the engine flywheel: 362mm (14.25")

- 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, 6 x 9.5mm on 320.7mm PCD and 12 x 9.5mm on 343mm PCD (Ford)

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

Fitted with the robust type P loop element for 745 Nm 550 ft lb torque, the 4P2 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.