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Marine - Boating - Prop Guard™ - PROP GUARD™ MEASUREMENT
Prop Guard How It Works Measurements Installation Guide Official Product Test Results
Prop Guard™ Measurement

To obtain and select the Prop Guard™ for your boat you must measure the distance from your anti-cavitation plate to the center of your propeller shaft. Refer to Fig. A.

Prop Guard Sizes to HP

9XP Prop Guard™ (Safety White) fits 5hp to 9hp

9" Prop Guard™ (Safety Yellow) fits 9.9hp to 20hp
(except Big Foot & High Thrust, Require 11")

11" Prop Guard™ (Safety Orange) fits 25hp to 35hp
(except Big Foot & High Thrust, Require 13")

13" Prop Guard™ (Safety Blue) fits 40hp to 65hp
(except Big Foot & High Thrust, Require 14")

14" Prop Guard™ (Safety Red) fits 70hp to 100hp
(except Big Foot & High Thrust, Require 16")
16" Prop Guard™ (Safety White) fits 110hp to 350hp
(All Stern Drives & Volvo Dual)
Prop Guards will fit all Manufacturers Outboards and Stern Drives.
NOTE: All hp's with Big Foot & High Thrust applications require next size up.
All applications of the 13", 14", & 16" Prop Guards are Pontoon & Deck Boats, and any other application that the vessel does not exceed 25 mph. Until our New Design comes out.
Prop Guard Application Chart

Cavitation Plate to Prop Shaft

Prop Guard Model Size

Maximum Propeller Size

4.25" to 5.5" 9" Prop Guard™ 8.5" propeller
5.75" to 6.0" 11" Prop Guard™ 10.5" propeller
  13" Prop Guard™ 12.5" propeller
6.5" to 7.5" 14" Prop Guard™ 13.5" propeller
8.0" to 8.5" 16" Prop Guard™ 15.0" propeller

To obtain optimal performance out of your motor with the Prop Guard™ installed, you may need to change your propeller diameter:

The closer the prop blades are to the guard rings, will optimize your performance, handling and will not create a drag. Your motor will also have to be trimmed to a setting of optimal performance. Refer to Fig. B.

Be sure the Prop Guard™ you purchase is the correct size. Place it on your motor with Grip Clamps first and CHECK YOUR CLEARANCES BEFORE DRILLING HOLES AND MOUNTING.

Manufacturer will not warrant your Prop Guard™ should you drill into Prop Guard™ and find you have purchased the wrong size.

Above all, please take your time in measuring and selecting the proper size Prop Guard™.

Call us or bring your motor by for an inspection for proper size.

SCOTTIES CANVAS & MARINE OUTFITTERS
2211 N. TAMIAMI TRAIL
N. FORT MYERS, FL 33903
Phone: 239-995-7479
Fax: 239-995-1196
Toll Free: 800-780-8677
UK (0) 87 1666 0259
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