Propeller Line Guard

(3 customer reviews)


Protects your outboard motor, propeller and skeg.

Don’t pay for unnecessary repairs to your outboard motor, propeller or skeg.

Let’s face it, our lakes and oceans can get shallow really fast. Not to mention the always-annoying debris. A small investment can save you money, time, and frustration. Spend more time on the water and less in dry dock.

Protect your Investment!!!

Don’t be surprised if your fellow boater drops by and asks a bunch of questions. I recommend you grab 2 beverages and tell them all about it. Who knows, this could be the start of a great friendship.

SKU: N/A Category:


Other Features and Benefits include:

  • Designed for the ‘Serious Boater’.
    -Keeps fishing lines and downrigger wires away from the propeller.
  • Saves on operating costs.
    -Increases efficiency by keeping more “solid water” around the propeller.
  • Provides better steering while running at slow speeds. Acts as a rudder when in reverse.
  • Tighter turning radius and less sideslip.
  • The patented design includes “pressure release ports”, designed to enhance the guard’s performance.
  • Helps protect the motor by deflecting debris in the water.
  • Helps to protect the propeller from damage.
  • Helps to protect the skeg from damage.
  • All required mounting hardware is included.
    -Stainless steel screws, washers and nylon locking nuts, & instructions.
  • Easy to install.
  • Not intended for human protection.

For additional protection see our Propeller Safety Guard


  • Heavy-duty stainless steel 10 & 11 gauge.
  • Width 4″
  • Stainless band is electropolished


Check with your insurance company, an Adventure Marine Propeller Line Guard may qualify for an insurance premium reduction!


To choose the correct model, you MUST measure from under the anti-cavitation plate to the bottom of the skeg, as shown by ‘Dimension A’ below.


Example: If this distance A measures 12″ exactly, the guard diameter that you should buy is 12″ guard diameter, model 91112-4, as shown in the table below. If you measure over 12″, 12-1/4″ then round up to the next size. In this case a 13″ guard, model 91213-4 

How to choose a model, by measurement:

Model Guard Diameter Propeller Diameter
90709-4 09″ 7″ to 8″
90910-4 10″ 8″ to 9″
91011-4 11″ 9″ to 10″
91112-4 12″ 10″ to 11″
91213-4 13″ 11″ to 12″
91314-4 14″ 12″ to 13″
91415-4 15″ 13″ to 14″
91516-4 16″ 14″ to 15″
91617-4 17″ 15″ to 16″

Recommended maximums for outboard motors:

Model Recommended Max. HP Max. MPH Max. K/Hr
90709-4 8 30 48
90910-4 to 91415-4 120 40 64
91516-4 & 91617-4 200 30 48


Customer Photos:

Additional information

Weight N/A
Dimensions N/A
Guard Diameter

17", 16", 15", 14", 13", 12", 11", 10", 9"

3 reviews for Propeller Line Guard

  1. Darrin (verified owner)

    Very well built, fit and finish is excellent its a top notch product. Customer service was very good and got back to me very quickly to answer questions about the prop guard. I would recommend this product and company.

  2. Dean Evans

    I bought a prop line protector guard from you in November 2018 and I like to say it was well worth the money.
    Last Sunday I was on the fraser river and I hit a log that was under the water and it worked great no damage to my prop and no damage to the guard.You have a great product has already paid for itself and I would recommend your prop guard to anyone who does not have one. it was no problem putting it on. would have had to replace the prop if the guard was not on the motor. anyone that does not have one on their boat should get one it is well worth the money. FIVE STARS FOR SURE

    • greg (verified owner)

      Hi Dean, thank you very much for this great review! We are of course very happy it saved you from a costly boat repair. Not to mention the possibility of losing your primary drive in a moving river.

  3. Chris Klohn (verified owner)

    We just purchased Adventure Marine’s prop line guard for a 2019 Yamaha 9.9 High Thrust Trolling motor for a custom Wooldridge Alaskan XL we are having built right now.

    I spent a great deal of time researching prop guards and Adventure Marine came out on top compared to the other brands such as Mac’s. Their design is extremely well thought out compared to others where you need to drill through the zinc anode when mounting.

    Their heavy duty stainless steel construction, mounting location and supports were all superior to other products on the market.

    In addition to their product, the customer service was second to none. Greg Epp called and emailed us to ensure the size was correct. I put him in touch with Wooldridge and he went over the required measurements with the sales representative, Danny Cook.

    The care to ensure that we had the right size picked out and to review the mounting instructions with the builder was unexpected. Greg went out of his way to help us out and it was greatly appreciated. Looking forward to many days on the water with their excellent product.

    Best Regards,

    Chris Klohn

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