Isoflex Flexible Coupling IFC-4200-90-4"

4" Isoflex Flexible Gearbox Coupler for Yanmar Marine Transmissions.

Isoflex flexible couplings provide a sacrificial link that is designed to fail before gearbox damage occurs. Isoflex couplings assist engine mounts to do their job by allowing controlled engine movement to isolate vibration and helping to alleviate thrust-induced drive line misalignment.

Isoflex Features

• Quieter boating experience
• Isolate and minimize drive line misalignment propeller pulse and gear chatter
• An Isoflex coupling acts as a fuse or sacrificial link
• Isoflex engineering-grade polymer
• Internal hex-shaped fittings
• Protects the gearbox, reducing the chance of damage to the engine and transmission

Isoflex Specifications

• Cross reference: Drivesaver 424Y
• Flange Diameter: 3.937"
• Holes: 4
• Hole Diameter: 0.39"
• Bolt Circle: 3.07"
• Pilot Diameter: 1.96" F
• Isoflex Coupling Diameter: 4.92"
• Isoflex Coupling Thickness: 1"

Transmission Cross Reference

• Yanmar YSE8, YSME8, YSBE8, YSE12, YSME12, YSBE12, 20M, 20H, 20G, 20F, JH-2-TF, 1GM10, 2GM20F, 3GM30F, 3HM/3HM35F, 2YM, 3YM, JH3, JH4 4" flange, YSM, YSB, SB, 2QM15, 2QM2030M, 30H, 30F, 30G 4" flange