4 Circuit
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All New 4 Circuit Solution Sealed (4CS-S) Kits and Components


NOTE: We have reworked all the 4 Circuit Solution Sealed models with all new modular fuseholders that hold extra fuses, and a neater, more compact design. At the same time we’ve increased battery lead length to easier fit all bike models. The 4CS Kits on this page are generically designed for all bikes, however, please note that we have bike specific kits for some popular bikes, see here. My apologizes for any errors on this page, or incorrect pictures. We have just introduced the 1, 2 and 4 Circuit Solutions, and discontinued the 3CS.

- These CS Kits are all part of a modular system that uses the same connectors and parts.

- We make various compatible extensions, leads, and splitters further down this page

4 Circuit Solution Sealed

This Kit is for medium power needs up to 35A total current on the Kit. (40 cm Kit shown, a longer kit is available)

This Kit has two main fuseholders. The black is for the switched circuits which also each have a separate fuseholder, the main white fuseholder is for the unswitched circuit. You can charge the battery through the unswitched circuit which is always hot. The switched circuits are switched by the relay to be on only when the bike is on.

This Kit uses Sumitomo MT sealed .090” connectors that are easy to work with if crimping or soldering. See here for a crimper for these that will do a professional job on these. The Hozan P-706 is my recommended crimper for sealed types.

Three switched outputs are provided, controlled by a 20A relay and a main fuseholder of 20A max. Switched outputs are max 12A each. These switched outputs are great for most of your accessories, cellphone, GPS etc, even heated clothing can be powered.

One unswitched output is provided direct from battery using its own fuseholder, with max capacity of 15A. The bike battery can be charged with this circuit. This higher power circuit can also power an air compressor or power heated clothing. Or you can use this circuit for a GPS which will stay on and powered when you shut off the bike.

Battery leads are 16 inches long (40cm) on the shortest version, longer kits will be available. The relay is a very compact 20A unit with extra protection shrunk over it. Mating connectors and fuses are included. Also, an extra terminal and seal is included, as well as cable ties. Extra connectors and parts are available on the Accessories Page. Two Positaps are included for the relay switching wire and ground.

Leads, extensions, and splitters to plug into the 3CS Sealed are now available on the Accessories Page.

Kit with Battery Connections (also available to hookup to our Powerlink battery leads)

4CS Sealed $59.95

Connection Option


4CS Sealed - LONG $64.95

Connection Option


Regular kit is 16 inches (40 cm), LONG version is 48 inches(122 cm)


NEW! - 4CS Sealed all Posi-Lock outputs

Simple no tools install.


4CS Sealed Posi-Lock $69.95

Connection Option


4CS Sealed Posi-Lock LONG $74.95

Connection Option


You get a choice of Battery Connection as shown in the Kits above, or a Powerlink Connection with a 2P QLW sealed male connector to plug into the Powerlink Battery Leads, as shown below.

Kit with Powerlink Kit Connector (battery leads sold separately here, available in different lengths)


Powerlink Option Kits
Battery Leads sold separately in different configurations and lengths, see Powerlink Page.


CanBUS Protective Diode Option: A protective diode can be ordered inline on the ignition switched lead, preventing reverse current flow back to the bike. This is highly recommended for CANBus bikes.

Protective  Diode in Switching Wire Option $5.95

Extra Connectors for CS Kits:

Male connectors are included with each CS kit to install on your accessory’s wires, order more below to have spares, make up your own extensions and splitters, etc.

2 Position .090 Waterproof MT Connector.

Fits wires from .5mm - 1.25mm (22 - 16 AWG).

Small size tough plastic housing with inner seal. Seals on each wire.

Click below to buy:

2P090WP-MT Connector Set  $3.95 ea



Male Half $2.49 ea


Female Half $1.95 ea


Crimper for sealed connector terminals:

The Hozan P-706 does a pro job on these types, go here to buy. This is a great tool for a home shop, most connectors on modern bikes are this type.

You don’t need a crimper to install these. You can pinch and solder if you know how to solder. I have a page about crimping and soldering here.


CS Sealed  Leads and Extensions

Various pre-finished leads of the highest quality are available for running your circuit wires from the CS Kit under the seat to up front to power a socket, SAE, aux lights, or other devices. Leads are available for a variety of power socket connections to plug in directly. Extensions can be used where you install the male connectors that come with the CS Kit on the wires of your device (like an automotive socket with pigtails), everything then plugs together. Wires, connectors, and sheathing are high temp, highest quality, Japan made by Eastern Beaver.


CS Extensions

- pre-made solutions to connect from the CS Kits to your accessory.

- male connector on one end and a female on the other end, male plugs into a CS Kit output connector - then you can use one of the included (comes with every CS Kit) male connectors on your accessory wires to complete the circuit - give you a modular way to connect your circuits


CS Kit Extensions 90 cm (36”) $12.95


CS Kit Extensions 120 cm (48”) $14.95


CS Kit Extensions 160 cm (64”) $16.95


CS Kit Leads - these leads have specific terminating connectors for different accessories

CS Kit Leads with SAE Plug

3cs leads - sae

2 Prong SAE Plug for battery chargers, etc., WITH 16 AWG wire. (NOW WITH SAE CAP)

CS Kit Leads Sealed (SAE) 15 cm (6”) $10.95


CS Kit Leads Sealed (SAE) 30 cm (12”) $11.95


CS Kit Leads Sealed (SAE) 60 cm (24”) $12.95


CS Kit Leads Sealed (SAE) 90 cm (36”) $14.95


CS Kit Leads Sealed (SAE) 120 cm (48”) $16.95


CS Kit Leads Sealed (SAE) 160 cm (64”) $18.95


CS Kit Leads with T-Connector

3cs leads - powerlet

2 Prong T-Connector for Powerlet and Hella type Socket - with 18 AWG wire

CS Kit Leads Sealed (TCON) 15 cm (6”) $10.95


CS Kit Leads Sealed (TCON) 30 cm (12”) $11.95


CS Kit Leads Sealed (TCON) 60 cm (24”) $12.95


CS Kit Leads Sealed (TCON) 90 cm (36”) $14.95


CS Kit Leads Sealed (TCON) 120 cm (48”) $16.95


CS Kit Leads Sealed (TCON) 160 cm (64”) $18.95


CS Kit Leads with 1/4” Pushons

3cs leads - pushons

2 1/4” Sheathed Push-on Receptacles for Automotive Sockets etc. - with 18 AWG wire

CS Kit Leads Sealed (.250”) 15 cm (6”) $10.95


CS Kit Leads Sealed (.250”) 30 cm (12”) $11.95


CS Kit Leads Sealed (.250”) 60 cm (24”) $12.95


CS Kit Leads Sealed (.250”) 90 cm (36”) $14.95


CS Kit Leads Sealed (.250”) 120 cm (48”) $16.95


CS Kit Leads Sealed (.250”) 160 cm (64”) $18.95



2P SAE Now with Cap


2P T Connector for Sockets

250 pushons

2 Sheathed Plated 1/4” Pushons

CS Splitters - NOTE: all CS Splitters are now a more compact 15 cm (6 in)

These splitters are designed to allow you to power even more accessories from your CS Kit.

All splitters are 15 cm(6”) long.

They are made of high quality Yazaki wire of 0.75 sqmm (18 AWG), with high temp flexible sheathing.

You can order any of the combinations below and more. Pick the connectors you need for your accessories.

The Splitters below are examples of possible choices, and plug into the CS Kit Outputs, or the CS Kit Extensions above.        

Two CS Kit outputs - use to split one CS Kit output to two.

One T-Connector for Powerlet type sockets, and one set of insulated push on 1/4” females - use to connect one CS Kit output to two different sockets.

Two sets of 1824 Posi-Locks for the ultimate in easy installations. Also use when you have devices with pigtail wires.

Another output option (not shown) is a high quality SAE connector with cap.


CS Kit Sealed Splitter $19.95

Option 1
Option 2

Lead Install Page


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