New and Rebuilt Stern Drives for Mercruiser Alpha I
New and remanufactured gearcases, upper drive shaft assemblies and complete outdrives come with a one year warranty. See below for savings when you order a complete stern drive, service tips and other info.
Click here if you're looking for 1992 and newer Gen 2 drives.
Use this chart if you're not sure which gear ratio you need.
Our prices include shipping in the continental US, so the price you see is what you pay.
| Mercruiser Alpha I Drives 1984-1990 | |||
|---|---|---|---|
 |
Upper Drive Shaft Housing Assembly | ||
| Please include gear ratio, year, HP, engine serial number & number of cylinders when ordering. | |||
| Description | Part Number | Price | |
| 1.5 Ratio | Remanufactured | MC-AU-150-R | $1,225 |
| New | MC-AU-150-N | $1,395 | |
| 1.65 Ratio | Remanufactured | MC-AU-165-R | $1,225 |
| New | MC-AU-165-N | $1,395 | |
| 1.84 Ratio | Remanufactured | MC-AU-184-R | $1,225 |
| New | MC-AU-184-N | $1,395 | |
| 1.98 Ratio | Remanufactured | MC-AU-198-R | $1,225 |
| New | MC-AU-198-N | $1,395 | |
 |
Mercruiser Alpha 1 Lower Units | ||
| Description | Part Number | Price | |
| Remanufactured | MC-AL-R | $1,325 | |
| New | MC-AL-N | $1,495 | |
 |
Complete Mercruiser Alpha 1 Outdrives | ||
| Complete drives are shipped in two pieces
without oil. Be sure to use the proper gear oil and filling procedure listed
in your manual. Save $160 (remanufactured) or $195 (new) when you order a complete drive! |
|||
| Description | Part Number | Price | |
| 1.50 Ratio | Remanufactured | MC-AC-150-R | $2,390 |
| New | MC-AC-150-N | $2,695 | |
| 1.65 Ratio | Remanufactured | MC-AC-165-R | $2,390 |
| New | MC-AC-165-N | $2,695 | |
| 1.84 Ratio | Remanufactured | MC-AC-184-R | $2,390 |
| New | MC-AC-184-N | $2,695 | |
| 1.98 Ratio | Remanufactured | MC-AC-198-R | $2,390 |
| New | MC-AC-198-N | $2,695 | |
| All Mercruiser lower units, upper assemblies and complete stern drives are shipped without oil! | |||
Service Tips
When replacing only half of your drive, upper or lower, it's important to service the other half to avoid damage to the replacement. The half that's not being replaced should be disassembled, cleaned, inspected and resealed before assembling the outdrive.
Core Value
There is no longer a core charge on the Mercruiser Alpha I uppers, lower units, or complete drivers, so there's no need to send your old one back for credit.
Complete Drive Savings
Complete drive savings only apply when a complete drive is ordered. If both lower and upper are ordered separately at different times, full individual prices apply, even if they're ordered within a short period of time.
New Units
New units listed here are either re-boxed Mercruiser, or assembled with all new parts.
All units are shipped without oil! Be sure to use the proper oil and filling technique listed in your owner's/service manual.