Crowley Marine: serving boaters for over 50 years Crowley Marine: serving boaters for over 50 years
Parts in stock Most parts in stock Same day fulfillment
$3.95 shipping on all orders*
Low Price Guarantee
9.6 Pilot logo
0My cart

Mercruiser Alpha One Upper Driveshaft Assembly

$1,490.00
Save $49.00 (3%)
Ships Immediately
  • This is a Crowley Marine brand product
  • Flat rate shipping, no hidden fees
  • 30 day return policy

Product Description

New upper drive for Mercruiser Alpha One Gen I from 1969 to 1990. Includes a one year warranty. Fits Alpha I drives with serial numbers 0D494569 and below.

Note: Older "R" style 4 & 6 cylinder units require that you reuse your input shaft.

Read more about our new and remanufactured sterndrives.

Gear Ratio Chart:
  • 1.98 - 120 (I4), 130 (I4)
  • 1.84 - 165 (I4), 175 (V6), 180 (I4), 205 (V8)
  • 1.65 - 200 (V8)
  • 1.50 - 230 (V8), 260 (V8), 270 (V8)

4 Product Variations available

1969-1990 Alpha One Upper Driveshaft Assembly -- 1.65 Gear Ratio - New MRAU165N

  • Gear Ratio: 1.65
$1,490.00
You save $49.00. (3%)
5+ IN STOCK Ships Immediately
$1,490.00
You save $49.00. (3%)

1969-1990 Alpha One Upper Driveshaft Assembly -- 1.50 Gear Ratio - New MRAU150N

  • Gear Ratio: 1.50
$1,490.00
You save $49.00. (3%)
5+ IN STOCK Ships Immediately
$1,490.00
You save $49.00. (3%)

1969-1990 Alpha One Upper Driveshaft Assembly -- 1.84 Gear Ratio - New MRAU184N

  • Gear Ratio: 1.84
$1,490.00
You save $49.00. (3%)
5+ IN STOCK Ships Immediately
$1,490.00
You save $49.00. (3%)

1969-1990 Alpha One Upper Driveshaft Assembly -- 1.98 Gear Ratio - New MRAU198N

  • Gear Ratio: 1.98
$1,490.00
You save $49.00. (3%)
5+ IN STOCK Ships Immediately
$1,490.00
You save $49.00. (3%)

Product Questions

There are no questions for this product. Ask a new question and receive an answer, directly from our support staff.

Flat $3.95 Shipping on ALL parts orders

We offer shipping flat $3.95 shipping on ALL parts orders. (Complete Engines, Lower Units and Sterndrives excluded). In addition orders over $89 have reduced cost express shipping available in checkout.

shipping map shipping map legend

You can get a rough idea of standard transit times from the map above.