Sierra 18-6814 Trim Motor, Replaces OMC 984356, for OMC Cobra Sterndrive

The Sierra 18-6814 Trim Motor is a direct replacement trim motor engineered for OMC Cobra sterndrive systems. It restores power tilt and trim function when the original motor has failed, weakened, or stopped drawing current, letting the drive raise and lower normally again. The 18-6814 is built to meet or exceed the specification of the original equipment part it replaces, giving boat owners a reliable way to get their trim system back in service without sourcing a used or discontinued OEM unit.

This trim motor is a straightforward like-for-like swap for the OMC part it replaces, so installation follows the same mounting and wiring points as the original motor. It ships as a single, ready-to-install unit and is backed by Sierra's standard product warranty covering defects in workmanship and materials.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-6814
• Product Name: Trim Motor
• Weight: 6.09 pounds
• Quantity: 1 trim motor per package
• OEM Cross-Reference: 984356

Fitment

• OMC Cobra

Replaces (OEM)

• 984356

Frequently Asked Questions

What does the Sierra 18-6814 trim motor fit? The Sierra 18-6814 is designed to fit OMC Cobra sterndrive systems.

What OEM part number does the 18-6814 replace? It replaces OMC part number 984356.

Is the Sierra 18-6814 a genuine OMC part or an aftermarket replacement? The 18-6814 is a Sierra-branded aftermarket replacement, built to meet or exceed the quality of the original OMC 984356 trim motor it replaces.

How much does the 18-6814 trim motor weigh? The Sierra 18-6814 trim motor weighs 6.09 pounds.

How many trim motors come in the package? One Sierra 18-6814 trim motor is included per package.

Will the 18-6814 work as a direct swap for my failed OMC Cobra trim motor? Yes, the Sierra 18-6814 is intended as a direct replacement for the OMC 984356 trim motor used on OMC Cobra sterndrives.

Does the Sierra 18-6814 come with a warranty? Yes, the 18-6814 is covered by Sierra's standard warranty against defects in workmanship and materials.

Is the 18-6814 trim motor only for OMC Cobra drives? Based on its listed fitment, the Sierra 18-6814 is specified for OMC Cobra sterndrive systems.

What symptoms indicate I need a replacement trim motor like the 18-6814? A trim motor that fails to run, runs weak, or no longer tilts or trims the OMC Cobra drive typically needs replacement with a motor such as the Sierra 18-6814.

Does Sierra make the 18-6814 to OEM specifications? Yes, Sierra manufactures the 18-6814 to meet or exceed the specification of the original OMC 984356 trim motor.