Mercruiser gear set V6 or 470-485 outdrives

Mercruiser outdrive parts drawing *Videos *SEI sterndrive

Mercruiser gear set V6 or 470-485 outdrives

GM V6 4.3 / 3.7 liter 224 upper drive and
driven gear set

Drive shaft housing upper set for 3.7L / 4.3L V6 and 470/485 Mercruiser motors
Compatible with MC-1/R/MR and Alpha 1/Gen 2 sterndrive models from 1970 - 1997 with serial numbers 4208730 - 0K999999
GLM P/N 11230, OEM 43-75325A3, 43-75324A2
Tech support Exploded view drawings
1.84 / 1.81 ratio (17-19 tooth count)

11230 Gears Mercruiser 43-75325A3

11230 Gears Mercruiser 43-75325A3

P/N 11230 OEM 43-75325A3, 43-75324A2 $337.99

Customers who ordered P/N 11230 also purchased:

87500 Outdrive Gasket Kit 26-32511A1

Seal kit 87500 contains all oil seals, o-rings and gaskets for the upper unit. Replaces OEM 26-32511A1, Sierra 18-2648.

39622 Mounting 27-94996T2

Bell housing mounting kit 39622 is required when installing the stern drive back onto the bell housing. Never re-use the old one, and make sure to use a sealing compound on both sides for proper installation. Replaces OEM 27-94996A2, Sierra 18-2619.

21540 Tapered Bearing 31-35990A1

Bearing 21540 is installed behind the drive gear (vertical). Includes race. Compatible with all models from 1972 - 1983 and all 4 cylinder / V6 motors (1984 and up). Does not work with 1.47 ratio V8 drives from 1984 and up (use # 21560). Replaces OEM 31-35990A1, Sierra 18-1161.

23280

Shim kit 23280 is used for the double bearings. 6 units. Replaces OEM 15-35980A1, Sierra 18-2292.

23270 Spacers 15-36178A1

Shims 23270 used for the vertical driven gear bearing. 5 units. Replaces OEM 15-36178A1, Sierra 18-2293.

23260 Shim Kit Top Cover 15-45691A1

Spacer kit 23260 is used under the top cover. Replaces OEM 15-45691A1, Sierra 18-2283.