New and Rebuilt Sterndrives for Mercruiser Alpha I
New and rebuilt gearcases, upper drive shaft housings and complete outdrives come with a one year warranty. Core value is primarily based on the condition of your housings and shafts.
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.
Please scroll to the bottom of the page for more tips and useful info.
Our prices include shipping in the continental US, including the return of your core for credit.
| Mercruiser Alpha I Drives 1984-1990 | ||||
|---|---|---|---|---|
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Upper Drive Shaft Housing Assembly | |||
| Please include gear ratio, year, HP, engine serial number & number of cylinders when ordering. | ||||
| Description | Part Number | Price | Core | |
| 1.5 Ratio | Remanufactured | MC-AU-150-R | $1,085 + core | $125 |
| Reman w/New Housing | MC-AU-150-NHR | $1,215 + core | ||
| New | MC-AU-150-N | $1,315 + core | ||
| 1.65 Ratio | Remanufactured | MC-AU-165-R | $1,085 + core | |
| Reman w/New Housing | MC-AU-165-NHR | $1,215 + core | ||
| New | MC-AU-165-N | $1,315 + core | ||
| 1.84 Ratio | Remanufactured | MC-AU-184-R | $1,085 + core | |
| Reman w/New Housing | MC-AU-184-NHR | $1,215 + core | ||
| New | MC-AU-184-N | $1,315 + core | ||
| 1.98 Ratio | Remanufactured | MC-AU-198-R | $1,085 + core | |
| Reman w/New Housing | MC-AU-198-NHR | $1,215 + core | ||
| New | MC-AU-198-N | $1,315 + core | ||
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Mercruiser Alpha 1 Lower Units | |||
| Description | Part Number | Price | Core | |
| Remanufactured | MC-AL-R | $1,185 + core | $125 | |
| Reman w/New Housing | MC-AL-NHR | $1,315 + core | ||
| New | MC-AL-N | $1,465 + core | ||
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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 up to $140 when you order a complete drive! | ||||
| Description | Part Number | Price | Core | |
| 1.50 Ratio | Remanufactured | MC-AC-150-R | $2,220 + core | $250 |
| Reman w/New Housing | MC-AC-150-NHR | $2,480 + core | ||
| New | MC-AC-150-N | $2,640 + core | ||
| 1.65 Ratio | Remanufactured | MC-AC-165-R | $2,225 + core | |
| Reman w/New Housing | MC-AC-165-NHR | $2,475 + core | ||
| New | MC-AC-165-N | $2,640 + core | ||
| 1.84 Ratio | Remanufactured | MC-AC-184-R | $2,225 + core | |
| Reman w/New Housing | MC-AC-184-NHR | $2,475 + core | ||
| New | MC-AC-184-N | $2,640 + core | ||
| 1.98 Ratio | Remanufactured | MC-AC-198-R | $2,225 + core | |
| Reman w/New Housing | MC-AC-198-NHR | $2,475 + core | ||
| New | MC-AC-198-N | $2,640 + core | ||
| Drives are shipped without oil! In most cases, complete drives are shipped in two pieces. | ||||
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.
Core Value
Core value is primarily based on the condition of your housing and shafts. You'll receive a core-return label for sending your core back--do not return it without the proper label. Core credit is only given for the same part that is being ordered. Example: An MR drive has no core value towards the purchase of an Alpha I.
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.


