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Alpha 4

Mercury Alpha 4 - 4 blade prop made from patented Mercalloy aluminum. Choose your pitch. Mercury is discontinuing the production of this propeller. We have limited stock. For a replacement to the Alpha 4 see the SpitFire X7 propeller. Spitfire comes in RH only (standard rotation)
Stock status: Sorry not in stock, cannot order at this time
Manufacturer part number: 834850A45 to 834855A45
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Diameter x Pitch

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$230.24
$207.57
Product Shipping specifications = pounds and inches

Recommended for Inline 4, V-6, or V-8 gas sterndrives

Fits: Alpha drives, Bravo drives and Outboards 135 hp and above

The Alpha 4 is being discontinued. Mercury recommends the 4‑blade SpitFire propeller as the aluminum option for 90 CT ‑ 150 outboards and Sterndrive applications. When
transitioning to a SpitFire, increase 1" of pitch from the Alpha 4.

The Spitfire comes in RH (right hand, standard) rotation only. 

 

 

 

Recommended for Inline 4, V-6, or V-8 gas sterndrives

Fits: Alpha drives, Bravo drives and Outboards 135 hp and above

The Alpha 4 is being discontinued. Mercury recommends the 4‑blade SpitFire propeller as the aluminum option for 90 CT ‑ 150 outboards and Sterndrive applications. When
transitioning to a SpitFire, increase 1" of pitch from the Alpha 4.

The Spitfire comes in RH (right hand, standard) rotation only. 

 

 

 

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