Mercruiser Sterndrive Parts
Mercruiser Parts Mercruiser Help Mercruiser Manuals Mercruiser Tools Mercruiser Sterndrives Mercruiser Board Contact


Upper Gear Kits

For a complete listing of all Upper Gears and Upper Gear Kits, click HERE.
For a complete listing of all Lower Gears and Lower Gear Kits, click HERE.

    Insist on ONLY Original Factory Parts
Number of teeth may differ
Alpha One Upper Gears
Model Alpha One (1983-1990) Serial Numbers 6216687-0D469858
These sets are "gears only".
They only include the lower bearing.
Part Number Description Teeth Price Click to Buy
43-55778A3 Gear Kit 1.98:1 Ratio 20-24 $ 256.25
43-45814A5 Gear Kit 1.65:1 Ratio 24-24 $ 290.00
43-75325A3 Gear Kit 1.84:1 Ratio 17-19 $ 285.00
43-18411A2 Gear Kit 1.50:1 Ratio 20-22 $ 399.00
43-66773A3 Gear Kit 1.32:1 Ratio 16-20 $ 545.00
43-18411A4 Gear Kit Comp with bearings and shims
replaces 1.50:1 Heavy Duty Kit
20-22 $ 587.00




The Kits below are COMPLETE Upper Gear Kits.
They include all upper bearings, shims, seals, orings
pinion nut and gaskets.

Part Number    Description    Ratio         Year        Cost Click to Buy Now
43-803115T 1 16-20 teeth 1.32 Ratio (1983-1990) $667.00
43-803116T 1 20-22 teeth 1.50 Ratio (1983-1990) $536.00
43-803112T 1 24-24 teeth 1.65 Ratio (1983-1990) $467.00
43-803114T 1 17-19 teeth 1.84 Ratio (1983-1990) $463.00
43-803101T 1 20-24 teeth 1.98 Ratio (1983-1990) $458.00


Lower Gear Housing Gear Kits and Sets

    Insist on ONLY Original Factory Parts
Gear Sets do not always include seals, gaskets, shims or bearings.
They often only include the pinion and forward gears.

Gear Kits include seals, gaskets, shims, bearings, pinion nut and
possibly other items such as a clutch, spool, tab washer.
They usually include all three lower gears.

For a complete listing of all Lower Gears and Lower Gear Kits, click HERE.

43-803079T1 Gear Kit Fits R drive $785.00
Click here to view part on Mercury Marine's website
The R drive has a pre-load pin on the driveshaft


43-803091T1 Gear Kit Fits Std Rot (RH) MR & Alpha One $755.00
Click here to view part on Mercury Marine's website
The MR & Alpha One drives have no pre-load pin on the driveshaft


43-803093T1 Gear Kit Fits Counter Rot (LH) MR & Alpha One $948.00
Click here to view part on Mercury Marine's website


43-803069T1 Gear Kit Fits Std Rot (RH) $1162.00
Alpha Gen II (except 2.40 ratio)
(s/n 0D469859-0F679999)
Click here to view part on Mercury Marine's website
43-803070T1 Gear Kit Fits Std. Rot. (RH) $1274.00
Alpha Gen II (2.40 ratio)
(s/n 0D469859-0F6799999)
Click here to view part on Mercury Marine's website


43-803076T1 Gear Kit Fits Counter Rot. (LH) $997.00
Alpha Generation II (C/R)(s/n 0D469859-0F679999)
Click here to view part on Mercury Marine's website


43-803071T1 Gear Kit Fits Std Rot (RH) $812.00
Alpha Generation II (except 2.40 ratio)
(s/n 0F680000-0K999999)
Click here to view part on Mercury Marine's website
43-803072T1 Gear Kit Fits Std Rot (RH) $1322.00
Alpha Generation II (2.40 ratio)
(s/n 0F680000-0K999999)
Click here to view part on Mercury Marine's website


43-803077T1 Gear Kit Fits Counter Rotatio (LH) $1058.00
Alpha Generation II (C/R)(except 2.00 ratio)
(s/n 0F680000 and above)
Click here to view part on Mercury Marine's website


43-803073T1 Gear Kit Fits Std Rot (RH) $779.00
Alpha Generation II (ecept 2.0 & 2.4 ratio)
(s/n 0L100010 and up)
Click here to view part on Mercury Marine's website
43-803074T1 Gear Kit Fits Std Rot (RH) $785.00
Alpha Generation II (2.0 & 2.4 ratio)
(s/n 0L100010 and up)
Click here to view part on Mercury Marine's website


43-96084A4 Gear Set (includes pinion bearing & reverse gear) $499.90
Fits MC-I, R Drive (17-28 teeth)(pre-load pin on driveshaft)
Click here to view part on Mercury Marine's website


43-96084A7 Gear Set (Includes pinion and fwd gear only) $389.00
Fits MC-I, R Drive (17-28 teeth)(pre-load pin on driveshaft)
If you also need a reverse gear, order kit 43-96084A4 above
Click here to view part on Mercury Marine's website


43-878087A4 Gear Set Fits MR/ Alpha One & Gen II $628.00
13-21 Teeth (no pre-load pin on driveshaft)
Includes all three gears, bearings and shims
Click here to view part on Mercury Marine's website


43-878087A2 Gear Set 13-21 Teeth Std Rotation $424.00
Fits Alpha Gen II (exce
Click here to view part on Mercury Marine's website


43-878617A2 Gear Set 14-28 Teeth Std Rotation $445.00
Fits Alpha Gen II (2.00 & 2.40 ratio)
(s/n 0F80000 and above)
Click here to view part on Mercury Marine's website


43-13730A1 Gear Set 14-28 Teeth Std Rotation $1230.00
Fits Alpha Gen II (2.40 ratio)
(s/n 0D469859-0K999999)
Click here to view part on Mercury Marine's website


43-13730A2 High Altitude Gear Kit $1230.00
Converts lower gearcase with 13/24 gears (1.62:1 ratio) to 14/28 gears (2.0:1 ratio)
This allows for a higher overall drive ratio.
Fits Alpha Gen II (s/n 0F680000 and above) with 13/24 gears
Click here to view part on Mercury Marine's website


43-828071A1 Gear Kit 13-21 Teeth Counter Rotation (LH) $778.00
Fits MR, Alpha One & Gen II (C/R)
(s/n 0F679999 and below)
Click here to view part on Mercury Marine's website


43-828289A1 Gear Set 13-21 Teeth Counter Rotation (LH) $445.00
Fits Alpha Gen II (C/R)(except 2.00 ratio)
(s/n 0F680000 and above)
Click here to view part on Mercury Marine's website


43-855651A1 Gear Kit 14-28 Teeth Counter Rotation (LH) $320.00
Fits Alpha Gen II (2.00 ratio)
(s/n 0L100040 and above)
Click here to view part on Mercury Marine's website


43-92320T Reverse Gear 28 Teeth Fits R drive $258.00
Click here to view part on Mercury Marine's website


43-828073A1 Reverse Gear 21 Teeth Fits Alpha Gen II $112.00
Click here to view part on Mercury Marine's website


43-824109A1 MR and Alpha One Reverse Gear $335.00
Click here to view part on Mercury Marine's website


Upper Gear Sets for Bravo Drives (Earlier Models)

These Bravo Upper Gear Sets include all three upper gears, all bearings, all seals,
all o-rings, keepers, clutch, shift cam assembly, shift shaft, upper spiral shaft,
set screws, pinion nut,check ball and spring, thrust washers and shims.

For a complete listing of all Upper Gears and Upper Gear Kits, click HERE.
For a complete listing of all Lower Gears and Lower Gear Kits, click HERE.

43-803108T 1 27-29 teeth Fits Bravo One 1.36, Bravo II and III 1.81
(s/n 0B664190-0F345867)(1988-1995) $1176.10

43-803107T 1 27-23 teeth Fits Bravo One 1.50, Bravo II 2.00 and Bravo III 1.50, 1.65 and 2.00
(s/n 0B664190-0F345867)(1988-1995) $1176.05

43-803109T 1 23-30 teeth Fits Bravo One 1.65, Bravo II and Bravo III 2.20
(s/n 0B664190-0F345867)(1988-1995) $1176.10

Upper Gear Sets for Bravo Drives (Newer Models)

These Bravo Upper Gear Sets include all three upper gears, all bearings, all seals,
all o-rings, keepers, set screws, pinion nut, check ball and spring, thrust washers and shims.
Note: These kits do NOT include clutch, shaft or shift yoke.

For a complete listing of all Upper Gears and Upper Gear Kits, click HERE.
For a complete listing of all Lower Gears and Lower Gear Kits, click HERE.

43-803111T 1 27-29 teeth $1078.80
Fits Bravo One 1.36 Ratio (s/n 0F345868-0K103438)(1995-1997)
Fits Bravo Two 1.50 and Bravo Three 1.36 (s/n 0F345868-0K262209)(1995-1997)
Fits Bravo Two and Bravo Three 1.81 (s/n 0F345868-0L999999)(1995-1999)

43-803110T 1 27-32 teeth $1078.80
Fits Bravo One 1.50, Bravo Two and Bravo Three 1.65 and 2.00 (s/n 0F345868-0L999999)(1995-1999)

43-803113T 1 23-30 teeth $1078.80
Fits Bravo One 1.65, Bravo Two 2.20 and Bravo Three 2.20 and 2.43 (s/n 0F345868-0L999999)(1995-1999)



Mercruiser Sterndrive Parts.
Pre-Alpha, R, MR and MC1 Parts
Alpha One Parts
Seal Kits
Alpha One Gimbal (Transom) Parts and Kits
Alpha Gen II Parts
Alpha Gen II Gimbal (Transom) Parts and Kits
Bravo One Parts
Bravo Two Parts
Bravo Three Parts
Bravo Gimbal (Transom) Parts and Kits
TR and TRS Parts
Transom Seal Kits
Gimbal Bearings
Shift Cable Kits
Gear Kits
Shift Interuptor Switch Kits
Anodes and Zinc Kits
Water Pump Kits
Power Trim Pump Kits and Trim System Parts
Decal Sets
Sterndrive Special Tools
Mercruiser shop Manuals
Propellers
Remote Controls
Gauges
Trim Sender Switches
Trim Cylinder Assemblies
Mercruiser Engine Parts
Filters and Filter Kits
Tuneup Kits
Carburetor Rebuild Kits
Carburetors
Raw Water Pump Kits
Circulation Water Pumps
Spark Plugs
Spark Plug Wire Kits
Gasket Sets
Exhaust Manifolds
Exhaust Elbows
Exhaust Riser Kits
Exhaust Water Shutter Kits
Ignition Modules and Ignition Coils
Cooling System Parts
Starter Motors
Solenoids
Alternators and Charging Systems
Belts and Belt-Pulley Kits
Drive Couplers
Fuel Pumps (Mechanical and Electric)
Wire Harnesses
Gauges and Instruments
Partial Engine Assemblies
Grease, Lubricants and Adhesives

©2004 Sterndrives.Com •EmailAbout UsHome Mercruiser HelpShop ManualsMessage BoardContact

Note: We are NOT Mercury Marine or Mercruiser.