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Motor Mounts - Rear Offshore Mounts

Xtreme Billet Aluminum Big Block Chevrolet Rear Side By Side Mount
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Xtreme Billet Aluminum Big Block Chevrolet Rear Side By Side Mount


Xtreme Billet Aluminum Engine Mounts - Big Block Chevrolet Rear Side By Side Mount (Twin Engine)

In the world of professional offshore powerboat racing the top teams are always looking for ways to save weight without sacrificing performance and durability. Hardin Marine knows there is no better way to test a product than to expose it to the abuses and demands of full blown racing. After hours of competition these Xtreme aluminum engine mounts have passed the test with flying colors. CNC machined from 6061-T6 billet aluminum and black hard coat anodized to prevent corrosion, these mounts are half the weight of conventional steel mounts. Complete with stainless steel fasteners each mounting hole has a stainless steel bushing to ensure a secure fit and prevent premature wear. Available in 3 configurations, the front shipping mounts are commonly used in catamaran hulls, while the staggered or side by side mounts are perfect for vee bottom installations. A convenient option on the rear engine mounts is an upper plate extension to mount the engines starter relay, wiring harness plug and MSD box or coil.

MOUNT-ENGINE Mercruiser 844346T
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MOUNT-ENGINE Mercruiser 844346T


MOUNT-ENGINE Mercruiser 844346T

Rear Engine Mount
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Rear Engine Mount


Additional Details:

  • Fits: MCM flywheel housing with Alpha and Bravo drives



  • 21040


  • 9-58000

Mercruiser Stern Drive

  • 33149
  • 865329A02
  • 8M0103028
  • 99297A1
  • 99297A2