On The Fly Jack Plates offers both a Manual Jack Plate Size Guide and an Electric Jack Plate Size Guide to help you choose the right jack plate for your engine.

The two main factors in determining the correct size are:

1. Motor Mounting Bracket Width – Measure your engine’s motor mounting bracket at its widest points. If the width exceeds 10 3/4 inches, you will need one of our Large Units.
2. Engine Weight – Our Standard Units support up to 150 lbs, while our Large Units can handle up to 230 lbs.

Refer to the size guide provided under each product listing to ensure the best fit for your setup.

With the right tools, installing an On The Fly Jack Plate is simple. Each jack plate comes with a step-by-step installation guide, and you can also follow along with our installation video here: Watch the Install Video. We also recommend checking out our Troubleshooting Guide for additional installation tips.

This will depend on your current engine and which jack plate you purchase: 

• Standard Units all come pre-drilled with Mounting Holes (horizontally) - 8" apart; Mounting Holes (Vertically) - 8 1/4" apart
• Large Units all come pre-drilled with the Standard BIA Bolt Pattern

You can find recommended maintenance and tips here.