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Free shipping with delivery in 2-4 days See details



XS Power 250A XP FLEX Big 3 Upgrade Kit 1/0 AWG BIG3-RD

Save 20% Save 20%
Original price $87.44
Original price $87.44 - Original price $87.44
Original price $87.44
Current price $69.95
$69.95 - $69.95
Current price $69.95

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  • XS Power Quality - Trust in the quality and reliability of XS Power products for superior electrical performance.
  • Easy Installation - The kit includes all necessary components, making installation straightforward and hassle-free.
  • One-Step Upgrade - Streamline your vehicle's electrical enhancement with the one-step "Big 3" upgrade kit.
  • Comprehensive Components - This kit includes a 6FT 0AWG XP Flex Red Cable, two 4FT 0AWG XP Flex Black Cables, and essential accessories.
  • XS Power Big 3 Upgrade Kit - Maximize your vehicle's electrical potential with the 250A XP FLEX Big 3 Upgrade Kit (BIG3RD).

XS Power 250A XP FLEX Big 3 Upgrade Kit 1/0 AWG BIG3RD

This listing includes:

  • (1) 6FT 0AWG XP Flex Red Cable

  • (2) 4FT 0AWG XP Flex Black Cable

  • (8) XS Power Brand Heat Shrink

  • (8) 0AWG Crimp Terminals

  • (10) Wire Clamps

  • (10) Zip Ties

  • (10) Screws

XS Power's Big3RD kit includes heavy-duty 1/0-gauge 10% Oxygen Free Copper(OFC)/90% Copper Clad Aluminum(CCA) cables that replace your vehicle's battery ground-to-chassis wire, the chassis-to-engine block wire, and the alternator charge output wire. Another bonus is that the ring terminals are already crimped to the wires, so you won't have to replace the stock grounds unless you want to improve them or double up.


  • Optimal Power Distribution - Replace critical wires like battery ground-to-chassis, chassis-to-engine block, and alternator charge output for improved power distribution.

  • Pre-Crimped Ring Terminals - The ring terminals are pre-crimped to the wires, ensuring a secure and efficient installation process.

  • Oxygen-Free Copper - Benefit from the superior conductivity of 10% Oxygen Free Copper (OFC) and 90% Copper Clad Aluminum (CCA) cables.

Payment Information


We accept PayPal for all ebay orders. You can use your credit through PayPal as all major credit card are accepted by PayPal.

We accept PayPal for all international orders, your address must be verified with PayPal.

We are not responsible for any custom duties or brokerage fees that may apply for all international orders.

When you click on the Buy it Now button you are entering into a
contract whereby you agree to purchasing the item at the price listed.

If you want to ship your item to an alternate address please add
that address on your PayPal account and use the address as the default
or confirmed address to pay us through PayPal

With Free Same Business Day Shipping we work to get you your order Fast. 


All orders over $500 will require a signature for delivery.

All pre-selected shipping rates and methods are for customers with a
valid residential or commercial address within the Contiguous 48 United
States (PO Boxes address may require additional charges).

P.O. Boxes, APO/FPO addresses, Alaska, Hawaii, Puerto Rico, Guam,
U.S. Virgin Islands, Northern Mariana Islands, American Samoa, Canada,
and other countries may require additional shipping fees. Please contact
a member of our team for detailed shipping charges.

Shipping is available only to PayPal verified addresses. When making
payment please confirm your address has been verified with PayPal. Once
payment is made shipping address can not be changed/altered. Payments
made using an unverified PayPal address will be refunded and order will
be canceled.

We will not accept request to change shipping address once payment
has been made. Please confirm your shipping address is up-to-date and

Typical handling time for orders is 1-business day. We do our best
to ship every package with-in 1 business day of receiving a cleared
payment. In some circumstances additional time may be need, in which
case we will contact buyer.

Shipped orders that are returned by the shipping company due to an
insufficient address or an undeliverable address will be refunded less a
20% restocking fee.

If package is refused or marked undeliverable and returned
back to us by the carrier, you will need to pay the shipping cost in
full to have the package sent back to you or we can refund the money
minus the cost of shipping


If you have not received your package, but the tracking information shows that it was delivered,
please do the following within 36 hours of expected, stated delivery:


Verify the shipping address on the order is the address where you are looking for the package

Look for a notice of attempted delivery

Look around the delivery location for the package, or see if a neighbor has accepted the delivery

Be sure to double check your mailbox and other usual spots for package delivery


If you think that your package has been stolen, we will require a police report since this is now theft.
Once we have a police report on file for the stolen package, we will reship your order.

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