Crowley Marine: serving boaters for over 50 years Crowley Marine: serving boaters for over 50 years
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Serial Range Mariner Outboard 25C (THRU PROP. EXHAUST) Propeller Guide

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Black Diamond [QS] Prop - 3 Blade 9.9x10RH Aluminum

General purpose 3‑blade aluminum propeller. Inexpensive and easy to repair. Recommended for speeds less than 50 MPH and applications less than 250 HP.

Manufacturer Series Rotation Pitch Width Blades Material Note Price
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Black Diamond [QS] - 3 Blade 9.9x10RH Aluminum
QA3808R

Ships Immediately
RH 10 9.9" 3 Aluminum $112.69 $134.16
You save $21.47.

Black Diamond [QS] Prop - 3 Blade 9.9x11RH Aluminum

General purpose 3‑blade aluminum propeller. Inexpensive and easy to repair. Recommended for speeds less than 50 MPH and applications less than 250 HP.

Manufacturer Series Rotation Pitch Width Blades Material Note Price
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Black Diamond [QS] - 3 Blade 9.9x11RH Aluminum
QA3810R

Leaves in 3-5 days
RH 11 9.9" 3 Aluminum $112.69 $134.16
You save $21.47.

Black Max Prop - 3 Blade 9.88x9RH Mercalloy Aluminum

Good overall performance and value. The Black Max aluminum propellers are standard equipment on most boats with Mercury/Mariner/MerCruiser power. Recommended for use on boats with up to 250 Hp and with a top speed of less than 50MPH.

Manufacturer Series Rotation Pitch Width Blades Material Note Price
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Black Max - 3 Blade 9.88x9RH Mercalloy Aluminum
8M0057165

Leaves in 3-5 days
RH 9 9.88" 3 Mercalloy Aluminum $168.8 $200.95
You save $32.15.

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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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