what size fuse should i get?

[jsluss17 10+ year member]

doing the big 3 with 4 gauge wire and a 105 amp alternator. what size fuse should i get to fuse it?

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[audiobaun 5,000+ posts]

100-150 should get it done:santa:

 

[krazykreat]

you are best!

 

[Mitch86 5,000+ posts]

Your fuse depends on how many amps your wire is rated for. Shoot for right around or a little under the rating of the wire.

 

[Kangaroux 5,000+ posts]

If it's 4g OFC get 150A.