Replace your vehicle's side-mount battery post with a quality, solid brass post from StreetWires. The long-sized BASML adapter features a connection terminal for your vehicle's electrical components, as well as a ring terminal for your audio components. Overall length: 1.767". Warranty: lifetime.

StreetWires BASML Reviews

Average Customer Review:

3 reviews
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Written By jim, oak harbor ohio on Sunday, August 11, 2013

Crutchfield Customer Review (What's this?)

Never hooked up an side post battery before this did the trick

Pros: Long enough for large terminals

Cons: Had to cut the rubber to make the post fit

Street wires battery side terminal standoff

Written By Doug E., Ortonville, MI on Sunday, June 02, 2013

Crutchfield Customer Review (What's this?)

Performed as intended to hook up an 8 AWG monster power cable with ring terminal. Only two tools needed for installation. Glad I purchased the long thread as I would probably strip the shorter ones into the battery's lead post.

Pros: Easy install. Good price.

Cons: Wish it came with washers sized to cover a blue ring terminal.

Nice side terminal retrofit!

Written By Stonecold_HTM, Overland Park, KS on Friday, April 06, 2012

Crutchfield Customer Review (What's this?)

Nice side terminal retrofit. Simply remove the stock threaded side terminal and replace with this terminal. This allows you to use your existing connection, but adds another threaded terminal end for adding other electrical connections (e.g., audio power wring). I used a small flat head screw driver to push back the rubber surrounding the existing terminal and it pops outs pretty easy.

Pros: Easy way to extend a side post for making additional battery connections

Cons: none

Hands-on research

What's in the box?

  • 1 Long side-mount battery post adapter with 1 Nut and 1 Lock washer

Product Research


StreetWires BASML Side Mount (long) Batter Adaptor Dimensions:

  • Overall Length: 1.741"
  • Top Threaded Post (where the power ring attaches): The entire post is threaded.
    • Length: 0.625"
    • Diameter: 0.309"
  • Bottom Threaded Post (portion that attaches to the battery): The entire post is threaded.
    •  Length: 0.375"
    • Diameter: 0.368"

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.