Vance JPL4300 3'' Setback Adjustable Outboard Boat Jack Plate


Usually Ships in 24 Hours
$319.98 - $504.98
(20 reviews)
Current Stock:
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  • Single Adjusting Jack Plate
  • Made of high strength polished Aircraft Quality Aluminum
  • Bronze and Brass hardware eliminate binding
  • Adjusts easily by turning one steel bolt
  • Offers 4 inches of adjustable Vertical movement
  • 3 inches of setback
  • Weighs 23 lbs
  • 225 Maximum Horsepower
  • 1 Year Unconditional Warranty against manufacturer defects

Jack Plates are the perfect solution for long shaft engines with a short shaft transom! The engine side holes of the Jack Plate is drilled 1.500 inches higher than the transom side. Combined with the 4 inches of adjustable vertical lift you can obtain 5.500 inches at a maximum height to raise your long shaft engine and make it workable on a short shaft transom boat!

Here are the pre-drilled hole dimensions listed below in inches:

  • Pre-drilled holes for 1/2'' stainless hardware
  • 12 7/8'' across the top two holes from center to center
  • 9 7/8'' across the bottom two holes from center to center
  • 8'' of vertical distance between the top holes and bottom mounting holes

If your holes do not match this configuration, you can drill into the aluminum plate. However, by modifying the unit returns will not be accepted.

We manufacture all of our Jack Plates on our own equipment at our facility in Taft, TN!

If you have any questions please feel free to email or call us, we want to help you. If we are not here or the line is busy, leave a message with your contact information and we will get back with you as soon as possible!

Not sure what size Bolt Kit you need to mount your Vance jack plate to your boat transom? Click here to use our jack plate bolt kit calculator.

Not sure what the Vance Performance Plate is? Click here for lots of info regarding the Vance Performance Plate.

Not sure what the Vance Transom Plate Inside Braces are? Click here for more info.

Not sure which Vance Coating option to choose? Click here for more info.
40 - 225 HP Engines.


  • 4
    JPL 4300

    Posted by Patrick Hooks on 18th Oct 2021

    Good Product

  • 5
    JPL4300 3'' Setback

    Posted by David A on 18th Oct 2021

    My needs were VERY specific due to the custom nature of my boat. I have HIGHLY modified a very old 15' Monark bass boat into a lake rocket on lakes that only allow 10 HP max The 3" setback was perfect in addition to the 5" added by the Panther Model 55 power trim/tilt. This Jack plate is VERY well engineered and as a person that has engineered thousands of things, that's quite the compliment! I was unable to use the default mounting holes but I knew that when I purchased it, not their fault. That is purely due to the extreme custom nature of my build. I highly recommend their products!! Their support staff is top rate and will answer any and all questions you have and they are polite, which is rare in this world! I recommend them to every fishermen and boater I know who wants to get the most out of their setup!

  • 5
    Perfect fit for my 17.5 Aquasport

    Posted by Brian OConnor on 10th Jun 2021

    Perfect 3" set back didnt throw off sent of gravity raised motor to exactly what I needed easy install everything went perfect Thanks Vance

  • 5

    Posted by Unknown on 7th Jun 2021

    It is a great product and is built very tough, and made very well. It is easy to adjust, and is what I needed to raise my motor just a little without a inch of setback. Shipping was very fast and customer service is great. I will definitely order from Vance if I need anything else.

  • 4
    Overall good quality

    Posted by John Kendall on 12th May 2021

    Had to trim the transom cap on each each side of the boat so the jackplate would sit flush against the transom. The bolts going through the jackplate itself needed another washer on the inside to prevent the ends of the bolts from digging into the transom , other then that. Nice quality material and very solid will use Vance manufacturing again for other items thanks

  • 4
    jpl 4300

    Posted by Charles Brown on 11th Apr 2021

    Worked well for my boat

  • 5
    3” jack plate

    Posted by Julian Holliday on 7th Mar 2021

    Very well made product at a good price. Shipping was very quick. Had the item in 2 days.

  • 5

    Posted by WILMER SANCHEZ on 12th Dec 2020

  • 5
    5 stars

    Posted by Unknown on 15th Nov 2020

    A very high quality product, with attention to detail