Exterior Components› Body Panels and Components

Engineered Marine Products

COMMUTATOR HEAD

$52.83

SKU: E051 392-01617

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Engineered Marine Products 392-01617 is a commutator head designed for marine applications. This part is also known by Sierra X-Ref 18-6254 and replaces Mercury part number 2940.

It is compatible with MerCruiser MC-1, MC II/TR/TRS, R/MR/, Alpha One, Alpha One-SS, and SSM drives. The commutator head measures 4 inches in length, 1.625 inches in width, and 4 inches in height.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandEngineered Marine Products
Part NumberE051 392-01617

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy