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MechMan Alternators BIG3

Premium Zero Gauge "Big 3" Cable Upgrade Kit

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List price $79.95

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MechMan Alternators BIG3

Premium Zero Gauge "Big 3" Cable Upgrade Kit


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MechMan Alternators Premium "Big 3" Cable Kit

Comes with everything you need to upgrade your Alternator Charge Cable, Alternator Ground Cable, and Chassis Ground Cable. This kit is a great performance upgrade for Stock Alternators, or High Output Alternators up to 250 Amps.

General Features:

  • Premium Zero Gauge "Big 3" Cable Upgrade Kit
  • Designed for Alternators up to 250 Amps1
  • Ultra Flexible soft Touch Jacket for Easy Routing
  • 4,700 Strand Count for Low Resistance and Excellent Flexibility
  • True 1/0 Gauge Diameter Cable Rated for 250 Amps
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
What's In The Box?
  • (1) 10 ft. Black 1/0 Gauge MechMan Power Cable
  • (1) 5 ft. Red 1/0 Gauge MechMan Ground Cable
  • (8) 1/0 Gauge Heavy duty Set-Screw Ring Terminals
  • (1) ANL Fuse Holder with 250 Amp Fuse
  • (8) Water Proof Heat Shrink Tubing
  • (12) Zip Ties
Notes: 1 For Alternators over 250 amps, two of these kits should be run in parallel.

Power / Ground Cable Specifications

Wire / Cable Type
Wires and cables are made for different uses. This use that the wire or cable is made for.

Please make sure that the wire you are purchasing matches the intended use.

Power / Ground Cable
This the how long the item is. When purchasing an item that requires a specific length (such as RCA interconnect cables or speaker wire), please make sure that the length of the item is long enough for your needs.
15 feet
Wire Gauge
The measurement of the diameter of wire. As the gauge number increases the size of the wire decreases. As the wire gauge number decreases, the diameter of the wire increases. For example, an 8 gauge wire is going to be larger than a 16 gauge wire.

When purchasing wire, make sure that you know what size, or gauge of wire is needed.

1/0 gauge
Primary Color
This is the main color of the item.
Complies to AWG Standards
Since 1857, The AWG (American Wire Gauge) system has been the standard for measuring the diameter of wire. AWG standard is the measure of bare wire to find true gauge. Companies that do not follow AWG Standards include the thickness of the wire jacket which means the actual wire is not "True to Gauge".
Wire Material
The material that the wire is made of. Copper & aluminum are the most commonly used materials. OFC - Oxygen Free Copper is the ideal choice for wire material. Copper is a superior electrical conductor, & does not expand or contract with heat. CCA - Copper-Clad Aluminum is a suitable choice for lower powered or budget applications. The power transfer is not on par with OFC, but this material offers significant savings.

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


Madison, WI

Great quality and simple to instal

May 26, 2015

This Big 3 kit is easy to install following the directions. The flexibility in the wires is a great bonus for routing in the engine compartment. It was paired up with a Mechman 240 amp alternator for use with a 12000 lb winch and off road light upgrades for a 2010 Ram

26 of 31 found this helpful

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burton, MI

Verified Purchase
rubber coating actually too thin!

October 23, 2015

Bought this and it works great, but the rubber coating is actually too thin, the coating comes off of the wire itself really easy and is a real pain but if you want some thick wire this is the big 3 kit for you, terminals are really convenient

5 of 6 found this helpful

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Accessory Tools and Products

Accessories added

Kicker Positive/Negative Battery Terminal Clamp

This battery terminal clamp has 3 outputs (One 1/0 or 4 AWG and two 4 or 8 AWG)

Your Price $19.95

Stinger HPM Series Battery Terminal

Battery terminal with 2 ouputs (0/1 or 4 AWG)

Your Price $26.99

Xscorpion CC-06

Heavy Duty Electrical Wire & Cable Cutters

Your Price $20.00


Hammer Style Large Cable Crimper for 0-8 Gauge Cables

Your Price $24.99

Belva BRT0516

0/1 Gauge Ring Terminals, 5/16" Opening with Nickel Plated Brass - 5 Pieces (3 Red & 2 Black)

Your Price $4.99

Stinger Pro Series 1/0 Gauge Ring Terminal (2-Pack)

Gold ring terminal with 1/0 gauge Input to 5/16" ring

Your Price $4.99

Stinger 1/0 Gauge Ring Terminal (Priced Individually)

Gold set screw ring terminal with 1/0 Gauge input to 5/16" ring. Includes red and black indicator bands.

Your Price $5.99

Stinger Gauge Reducer

1/0 AWG to 4 AWG Chrome gauge reducer for connecting 1/0 AWG cable to 4 AWG inputs.

Your Price $6.95

Scosche SL34-80

80 ft of 3/4" Split Loom Tubing

Your Price $23.95

Scosche SL1-50

50 ft of 1" Split Loom Tubing

Your Price $32.95

Browse 2 questions and 11 answers
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Why did you choose this?
Sonic Electronix Store
I recommend this for anyone needing to add a little more power to their factory system
Donvey B on Apr 23, 2017
Comes with everything
Eric M on Jan 29, 2017
Soon to have stereo
John A on Apr 20, 2017
Gift for husband
Felicia R on Dec 4, 2016
is this cca or ofc?
A shopper on Jan 4, 2015
Best Answer: This kit is not OFC, their catalog shows the wire stamped with "CCA", which they have removed from the newer wirre. It does not state anywhere the wire is OFC. I was extremely disappointed after purchasing this kit and finding out it's the cheaper CCA.
Reply · Report · Joe J on Jun 15, 2015
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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: MechMan Alternators BIG3