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Electrical / Battery cable replacement
« Last post by Rough75C20 on April 10, 2026, 08:01:42 am »Hello,
Simple question just to double check. I want to replace the positive battery cable on my truck. The new cable doesn’t have the splice with the smaller cable that splits off to go to the back of the alternator. Can I just run a separate wire from the positive terminal to the back of the alternator instead of splicing it like the original cable with the red plastic box? Any idea what gauge this smaller wire needs to be? Should I add a fuse? The splice in the red box currently doesn’t have a fuse. The new setup would be just a large positive cable to the starter and a smaller wire going to the alternator directly from the positive terminal.
Thank you
Sent from my iPhone using Tapatalk
Simple question just to double check. I want to replace the positive battery cable on my truck. The new cable doesn’t have the splice with the smaller cable that splits off to go to the back of the alternator. Can I just run a separate wire from the positive terminal to the back of the alternator instead of splicing it like the original cable with the red plastic box? Any idea what gauge this smaller wire needs to be? Should I add a fuse? The splice in the red box currently doesn’t have a fuse. The new setup would be just a large positive cable to the starter and a smaller wire going to the alternator directly from the positive terminal.
Thank you
Sent from my iPhone using Tapatalk

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