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· Registered
2004 Impala LS 3.8L (~130k miles)
349 Posts
An OEM wire is going to fit better and is capable of handling the necessary amount of current. A 3rd party cable can be an acceptable battery cable. You need to ensure the cable can handle the necessary amperage and is of sufficient length for your Impala.

Were you having issues before you replaced the starter and alternator? Or the issues only showed up after their replacement?
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