MasterCraft PiggyBack Rear Factory Ballast Upgrade

MasterCraft PiggyBack Rear Factory Ballast Upgrade

MasterCraft PiggyBack Rear Factory Ballast Upgrade



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Expand the capacity of your MasterCraft's factory ballast system for a better wakeboard or wakesurf wake.

The Rear PiggyBack Ballast System Kit is designed to make use of the existing pumps, hoses and switches in your Mastercraft, to expand the capacity of your factory rear ballast tanks. This kit includes everything needed for the installation, including a ballast bag of your choice (Fly High, Straight Line, or Eight.3) and the necessary quick connect fittings.

NOTE: Any 2007 MasterCraft will require the installation of a new Jabsco AI Timer Module due to the inability for the timers to be increased above 6 minutes. All 2008-2011 MasterCraft boats will require timer reprogramming to increase the fill and drain times and can be increased to a maximum of 20 minutes, Download Instructions.

One simple and completely reversible change is required to install the PiggyBack system, and the entire process takes less than 30 minutes.

For specific questions on fitment, and for possible compatibility with other models, please contact us.

Step 1: Loosen the hose clamps on the vent hose located on top of the hard tank and remove the hose. Try to unthread the barb vent fitting in the top of the hard tank. If this is removable use the 1” NPT fitting in it’s place.

NOTE: If the fitting is not removable use a short section of the black MasterCraft OEM hose and the gray 1” thread x 1” quick connect fitting between the hose extension and the tank barb.

Step 2: Connect the quick connect elbow fitting that is closest to the black 1 PSI check valve onto the ballast tank fitting seen above. Slide the red collar down to secure the connection.

Step 3: Loosen the clamp securing the hose to the thru-hull in the side of the boat and remove the hose.

Step 4: Using the pre fabricated kit place the hose that is not labeled onto the vent thru-hull fitting in the side of the boat. Secure with a hose clamp.

Step 5: Thread the male quick connect fittings into your MasterCraft Ballast bag.

Step 6: Connect the straight hose fitting, labeled Fill/Drain, onto the bottom bag fitting. Slide the red collar down to secure the connection.

Step 7: Connect the elbow hose fitting, labeled Vent/Overflow, onto the top bag fitting. Slide the red collar down to secure the connection.

Step 8: Locate the unlabeled, unterminated bare hose end and slide that onto the vent thru-hull fitting located on the side of the boat. Secure with a hose clamp.

This Piggyback system is designed to work with MasterCraft boats that have factory rear ballast tanks that are installed below the floor of the boat and use 1" hose connected to Jabsco Ballast Puppy pumps for filling and draining.

Confirmed models include the following boats:
- 2006-2011 MasterCraft X-2
- 2006-2011 MasterCraft X-10
- 2009-2011 MasterCraft X-14V
- 2006-2011 MasterCraft X-15
- 2010-2011 MasterCraft X-25
- 2006-2010 MasterCraft X-30
- 2008-2011 MasterCraft X-35
- 2006-2011 MasterCraft X-45
- 2009-2011 MasterCraft X-55
- 2006-2011 MasterCraft X-80
- 2012 NOT COMPATIBLE (Ballast Software Upgrade Available Early 2013)
- 2013 MasterCraft X-2
- 2013 MasterCraft X-10
- 2013 MasterCraft X-14V
- 2013 MasterCraft X-15
- 2013 MasterCraft X-25
- 2013 MasterCraft X-30
- 2013 MasterCraft X-35
- 2013 MasterCraft X-45
- 2013 MasterCraft X-55

ATTENTION: This factory ballast upgrade kit is sold individually. We sell systems individually so that customers can upgrade just one side of the boat for surfing if they would like. You will need to purchase two systems if you want additional ballast on both sides of the boat for wakeboarding or surfing regular and goofy. Contact us if you have any questions or need help determining the correct upgrade for your application.
Warranty 1 Year
Manufacturer WakeMAKERS - view brand page
Manufacturer Part # 42301
Item # 42301


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  • 7/16/2015


    Very easy to install. Saved the install money I would have payed the dealer and added extra bags to the bow and side. Love not having to move around the portable pumps. Sit back and relax.

    Ken marzec

  • 6/22/2015

    Huge change to the wake on X30

    I installed on port side of 2013 X30. Big change to the wake. Platform hits the water now when surfing so need to get about 150 pounds in the bow which makes the wake even better. Use a person or more water ballast up front. It took me only 30 minutes to set up once I understood the parts - it would be helpful if they included a diagram. A call to wakemakers resolved everything quickly but a diagram would be nice to have a greater sense of comfort on the install. I had to add a splice piece of hose since couldn't get the fitting out of the hard tank. No big deal - but it meant I needed another hose clamp two (3 total - used 2 existing when removed the vent line to insert the sack). I read this somewhere but forgot - when you adjust the timers (which on mine can EASILY be done on the computer screen) set them for about triple the fill and drain times. When you start the fill, start a stop watch on your phone - when the water starts dumping out the vent on the side of the boat, read the stopwatch time and then reset the timer to that time frame. I'm not sure the 750 pound sac would fit in this locker - the 600 seems "right".

    Ron DeVries

  • 1/11/2015

    easy install!

    Easy to install. Simple instructions. Took 30 minutes tops!! Needs longer drain tubes though.

    Shelly Morden

  • 9/2/2014

    fat sack

    I have 2006 X-45. I installed a fat sac on each side. I had to pick up longer drain tubes to accommodate for the extra length to reach the sac. Install took about an hour and is simple. It fills perfectly but fills slowly as it runs off the boat pump. The 750 lb sac fits perfect.


  • 8/4/2014

    Absolute Must Have

    We have a 2010 Mastercraft X-25 with the factory ballast and while it was enjoyable, it just seemed like something was missing while surfing. Added the Piggy Back system in both rear lockers with the Fly High 400 pound bags.

    Installation took about 45 minutes for both sides. Like some others, I also used a few more extra feet of hose, so you might consider some extra just to have 'in case'.

    Once filled, our swim platform is now 4 inches under water, whereas before it was out of the water. The wake is night and day difference for both surfing and wakeboarding !!! WakeMakers nailed this.


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