OMC electric shift sterndrive parts *1967 to 1977 repairs

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OMC Electric Shift Rebuilt Used Lower Units

Replacement OMC electric shift sterndrive - Lower unit

  • Complete re-manufactured / rebuilt replacement lower unit with 1 year warranty
  • Includes full tech support by phone with one of our OMC techs
  • Compatible with 1972 - 1977 electric shift models with 10 bolt swivel bearing retainer/housing
  • 1967 - 1971 models with 8 bolt swivel housings also available. Contact us for availability.
  • Assembled with used OEM parts with new seals and bearings
  • Includes used shift cable (new wire available upon request). Propeller not included. We stock a variety of used Electric Shift propellers.
  • *Core deposit is required. $360 deposit is refunded upon return of your old lower unit.

OMC sterndrive electric shift lower unit

OMC sterndrive electric shift lower unit

Stringer lower unit gearcase repair

Stringer lower unit gearcase repair

Basic repair cost $695 USD - includes re-sealing, clutch spring repair/replacement (if needed), re-painting of swivel and propeller retainer

Swivel housing bearing retainer 10 bolt 1972-1977 OEM 980014

Swivel housing bearing retainer 10 bolt 1972-1977 OEM 980014

Outdrive gear head assembly hub OEM 381849

Outdrive gear head assembly hub
OEM 381849

Complete Rebuilt Lower Unit Replacement

$1395.00 USD (Plus $360 core deposit) $1813.00 CDN

$1395.00 US

$1813.00 CDN

10 Bolt swivel housing repaired

10 Bolt swivel housing repaired

Our rebuilt OMC Stringer electric shift lower units are the '10 bolt' swivel housing models (shown in photo with yellow pointing to bolts to count). This model was made from about 1970-1977.

If you have a lower unit where the swivel housing is installed with '8 bolts' - please contact us by phone to order a rebuilt unit. Additional details on your outdrive will be required and discussed by phone to ensure we match the correct unit.

Propeller bearing retainer with 3 seals installed

Propeller bearing retainer with 3 seals installed

For our rebuilt lower units and units we receive for repair, we rebuild the hub assembly shown in photo, along with repairing the clutch spring and re-sealing the rest of the unit. This hub is rebuilt by cleaning up the hub assembly (sandblasting the entire hub, removing the old seals and offsetting 2 replacement seals followed by an application of zinc chromate).

10 Bolt swivel housing side view

10 Bolt swivel housing side view

The swivel housing is rebuilt on all repairs. It is fully sandblasted on the inside and outside, old seals removed with new seals installed with Loctite. The housing is then sprayed with zinc chromate and the shift wire re-installed.

OMC electric shift outdrive repair

OMC electric shift outdrive repair

Lower units (both repairs and rebuilt units) are fully pressure tested to ensure seals are holding adequate pressure.

Uline box 26 X 26 X 8 inches

Uline box 26 X 26 X 8 inches

Sending in your lower unit for
repair or core return


If you are sending back a core, simply use the box we send the new outdrive to you in which will have Styrofoam insulation inside which you can reuse as well.

The OMC electric shift lower unit will fit in a 26" x 26" x 8" or a larger box. These boxes can be purchased at most UPS stores and Home Depots. 

If purchasing a box, a double walled box is preferred due to it's strength, but a single walled box will work just fine with the Styrofoam packed inside the box.

Please do not use bubble wrap, popcorn foam packing material or towels/rags to use as internal packing material. These will not provide sufficient protection of the gear box during transport and will most likely result in the gear case being damaged when we receive it.

insulation board

insulation board

Purchase insulation Styrofoam - either the white board strips (in the photo the pack of foam is made by handy pack available at the Home Depot), or the hard pink insulation board also available at the Home Depot.

Line the bottom of your cardboard box with a piece - and then place your gear box in the box. Make sure all the oil is drained out of the outdrive.

Insulation board 1.5 X 14 X 48 inches

Insulation board 1.5 X 14 X 48 inches

Cut pieces of the insulation board to fit the perimeter of the box on all sides, and piece by piece start to build up towards the gear case. You're trying to building a foam barrier between the walls of the box and the gear case that will prevent the outdrive from moving around in the box. It will also prevent damage if the box is dropped during transit.

You can either eye ball the sizes needed as you go along, or use a measuring tape.

Handy Pack packing material in box

Handy Pack packing material in box

After you have sufficiently protected the outdrive with pieces of insulation board, include a note in the box with your contact info and notes.

This note should contain your name, phone number/email, return shipping address and if applicable - any technical notes for our tech. *These technical notes should describe what issue you were having. Examples would be 'loss of forward gear, water in gear case, clunking sound when changing gears/slips out of gear, etc.)

Note no oil in lower unit needs type C

Note no oil in lower unit needs type C

Note no oil in lower unit needs type C

When you receive your rebuilt unit from us, there will be no (type C) oil in the gear case.

Please be sure to use 'type C' oil/lube for the electric shift lower unit only. This type C oil is available through Sierra (part #18-9620-2).

When filling your upper gear case, use the standard 80/90 weight lower unit outboard oil.

Finial packing before shipping

Finial packing before shipping

When sending your lower unit in for core exchange or repair, make sure to drain all oil out of unit.