17” Pitch Mercury Outboard Boat Propellers 70 HP Thru 1983 Includes Model 700

Mercury 70 HP Thru 1983 Outboard Propellers
You Are Viewing 17” Pitch Props For:

Manufacturer: Mercury

Horsepower: 70 HP

Years: Thru 1983

Model: Includes Model 700 Outboard

Specs: Thru Hub Exhaust & 13 Tooth Spline

Propeller Pitch: 17”

2-Piece Props Aluminum vs. Stainless Steel 3 vs. 4 Blades Diameter
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Aluminum Propellers
Aluminum propellers are relatively inexpensive, easy to repair, and under normal conditions can last for many years.
Aluminum 3 Blade Propellers:
 
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3 vs. 4 Blade Props

3-Blades

3-blade props are great on most boats as they offer good all around performance, better efficiency, and can achieve higher speeds. Switching from 4 to 3-blades generally requires a 1" pitch increase.

4-Blades

4-blade props work well with bass, pontoon & high performance boats as they provide better acceleration, keep a boat on plane with fewer RPM's, and produce less vibration at high speeds. Switching from 3 to 4-blades generally requires a 1" pitch decrease.
Prop Diameter

Diameter is the width of the circle that the prop would make when rotating.


Prop diameter does not affect the fit of the prop on a boat.


The diameter of your prop can vary by up to 1/2" with no discernable change in performance.


Caution: Before increasing the diameter of your prop, make sure there will be enough clearance between the blades and cavitation plate or anode on your engine.

Prop fit on the boat is not affected by diameter.
Aluminum vs. Stainless Steel Props

Aluminum

Aluminum props are a great choice for small and medium sized boats. They are inexpensive and under normal conditions can last for many years. When running your boat in an area where striking the bottom is likely, aluminum blades can flex, helping prevent damage to your engine.

Stainless Steel

Stainless steel props are ideal for large or heavy boats and boats running in saltwater. Although more expensive than aluminum, stainless steel props are more durable and will last longer. When running your boat at speeds over 50 mph, stainless props will perform better than aluminum.

2-Piece Props

2-Piece propellers consist of the outer prop housing and a removable center hub.


The removable hub easily slips into the outer piece, allowing you to have multiple props for different applications at a lower price. When the prop blades become worn or damaged they can be replaced while keeping the same hub piece.


2-piece propellers perform the same as the 1-piece/fixed hub versions.


Prices listed include both the housing and appropriate hub.
Both parts are added to your cart making it easy to find your complete propeller.

The Hub and Housing make a complete prop.
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Prop Installation Notes
Flo-Torq Reflex Hub Kit and required hardware included with propeller.
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Propeller Help Guide
P is for Propeller Propeller Basics
How To Choose A Prop
Diameter Pitch
Cupping Rake
Ventilation Cavitation

We tell you everything you need to know about props from cupping to ventilation.

Learn About Prop Characteristics Prop Characteristics
3 Blades VS. 4 Splines
Aluminum vs. Stainless Steel
Performance Exhaust
Left-Handed Props FAQ

If you want to modify your boat's performance, consider the above before making your selection.

Learn About Engine RPM Determining RPM's
Effect of pitch on RPM
Test for Maximum RPM



For safety and efficient performance, it is critical that your engine operates within the RPM range recommended by the manufacturer.