Diameter x Pitch
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.