Crowley Marine: serving boaters for over 50 years Crowley Marine: serving boaters for over 50 years
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Mercruiser Alpha One Identification

added
updated
Manufacturer Mercury
Engine Type I/O
Repair Time Less than 30 mins
Repair Difficulty Easy
Engine HP Displacement Litre/CID Cylinders Gear Ratio Tooth Count Year
2.5 Litre 120 2.5/153 4 In-line 1.98 24-24 84-90
3 Litre 130 3.0/181 4 In-Line 1.98 20-24 84-90
165 165 3.7/224 4 In-Line 1.84 17-19 84-90
175 175 4.3/262 V-6 1.84 17-19 84-90
180,470,190 180 3.7/224 4 In-Line 1.84 17-19 84-90
200 200 5.0/305 V-8 1.65 24-24 84-90
205 205 4.3/262 V-6 1.84 17-19 84-90
230 230 5.0/305 V-8 1.50 20-22 84-90
260 260 5.7/350 V-8 1.50 20-22 84-90
350 Magnum 270 5.7/350 V-8 1.50 20-22 84-90

MRAC165N - Mercruiser Alpha One Complete Driveshaft Assembly
MRALN - Mercruiser Alpha One Lower Driveshaft Assembly
MRAU165N - Mercruiser Alpha One Upper Driveshaft Assembly

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.

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