3440-050P 4/0 GA Crimpable Positive Left Add On Connector (50 PCS) - Safe professional method of installing additional connectors directly to the battery, such as heavy duty accessories like winches, hydraulic pumps and plug in booster cables. For light and medium duty accessory connectors.
Warning: This product may expose you to chemicals including lead which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov