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Blackjack 42 Cooling System Parts

Product ID ose-83391-bj42-cooling
Price: $23.99
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Upgraded your ProBoat BlackJack 42 to Dual Cooling.  

Includes all the necessary parts to convert the ProBoat Black Jack 42 into a dual cooling system. The ProBoat stock tubing is 6mm x 3mm, we include a larger 8mm x 4mm silicone tubing in the color of your choice.

Includes:
(1) 7' (2000mm) Piece of colored 8mm diameter tubing, pn# mo-color-tub.
(2) Large bore water outlets in BLACK anodized color, pn# ose-80905.
(2) Bulkhead water fittings for the transom in BLACK anodized color, pn# ose-80898.
(6) 4" Black zip-ties

No instructions, please see the pictures on this page for information.

Note: Boat not included!

5 Product Reviews - Average rating 5 / 5 (Show All)
Upgrade cooling parts and trim tabs
Lpk - 14th April 2025
Ordered the 8mm dual cooling kit for my Blackjack 42i t is a great kit especially if you like to tinker with your toys. Keeps the temps down and opens the ability to try new things and stay cool. A must have.
The trim tabs work great. If you have a 42 yread more
Upgrade cooling parts and trim tabs
Lpk - 14th April 2025
Ordered the 8mm dual cooling kit for my Blackjack 42i t is a great kit especially if you like to tinker with your toys. Keeps the temps down and opens the ability to try new things and stay cool. A must have.
The trim tabs work great. If you have a 42 yread more
Great products and fast shipping
Todds - 16th April 2024
Ordered the complete upgraded cooling kit
For my bj42 worked perfect
And
Def
Runs cooler also previously
Pitched prop amd thing runs like a gorilla on roids
Great cooling system
The krush - 06th February 2022
I have to say the 8mm cooling lines are great with the outlets and it give my proboat blackjack 42 a great look and a nice flow through the system my esc and motor stays cool on blasting runs.

**** Response from Offshore Electrics Inc. ****
Thanks forread more
Outstanding upgrade
Prop walk - 22nd July 2021
This is a great upgrade, comes with everything needed to two separate cooling lines one for the motor, and one for the ESC. The lines are thicker then stock so there’s a lot more water flow. I’m not sure what the exact temperature was before, but I read more
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