Mercury Marine Bravo Three XR Pro Finished Rear Propeller 15 x 21" Right-Hand 3-Blade - 842940L70 | CLEARANCE
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The Mercury Marine Bravo Three XR Pro Finished Rear Propeller 15 x 21" Right-Hand 3-Blade - 842940L70 is a genuine Mercury stainless steel, high-polish rear propeller for Bravo Three, Bravo Three X and Bravo Three XR drives. It is one of the best upgrades for big Bravo Three boats with big power because its enhanced blade cup delivers quicker planing, improved fuel economy and better midrange throttle response.
This robust set of counter-rotating, stainless steel propellers was designed for use on big boats with big power. A large diameter four-blade front propeller coupled with a smaller diameter, three-blade rear propeller provides unmatched acceleration, tracking and handling. Enormous cup built into the trailing edges of both front and rear props results in tremendous planing performance and enhanced fuel economy. The enhanced cup is especially useful for high torque diesel applications.
An upgrade from the standard Bravo Three propellers to the Pro Finished Bravo Three XR props will result in a one inch pitch decrease to match the same RPM. The decrease in pitch may result in a 3-5 mph increase at cruise with a 1-2 mph increase in top-end speed.
Features:
- Front and rear propellers are sold separately. You will need to purchase both if you want a set.
- Zero balanced by Mercury Racing.
- Enhanced blade cup for improved planing and fuel economy.
- Recommended for 260-350 HP diesel and 260-525 HP gasoline engines.
- Fit for use on the standard Bravo Three, Bravo Three X and Bravo Three XR drives.
- Three-blade rear propeller, high polish finish.
- Exceptional handling and maneuverability.
- Delivers a quicker planing time.
- Increased performance and throttle response in the midrange.
- Hardware sold separately (not included with propellers).
Fitment:
Mercury MerCruiser:
- All Bravo Three engine applications (standard Bravo Three, Bravo Three X and Bravo Three XR drives)
- Bravo Three uses a 4-blade front and 3-blade rear propeller; this listing is the 3-blade rear propeller only
- If the boat is propped correctly with the original Bravo Three propellers, drop down 1" in pitch to maintain engine RPM
Required Hardware (sold separately):
- Forward Thrust Washer #805101T
- Aft Thrust Washer #805100
- Forward Prop Nut #859131
- Aft Prop Nut #862907
- Bravo Three Inner Prop Nut Wrench #805457T1
Specifications:
- Brand: Mercury Marine
- Manufacturer: Mercury Marine
- Part Number: 842940L70 (48-842940L70)
- Model: Bravo Three XR Pro Finished
- Position: Rear propeller
- Blades: 3
- Size: 15" diameter x 21" pitch
- Rotation: Right-hand (clockwise)
- Material: Stainless steel, high polish finish
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