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Battery Side Bolt Extender - Brass - Short

Battery Side Bolt Extender - Brass - Short

Item # DW05416
Our Price: $24.77
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Deka Bolt Extenders Accessories and Parts - DW05416
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Deka Accessories and Parts - DW05416

  • Battery Boxes
  • Bolt Extenders
  • Deka

  • Attaches to side of battery of allow for the hookup of accessories (12 volt leads, brake controllers)
  • 1-3/4" long
  • 3/8" diameter post
  • Brass construction

00543/05416 Deka Wire Batteries and Accessories Short Side Brass Bolt Extender

California residents: click here

Video of Battery Side Bolt Extender - Brass - Short

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Deka Battery Side Bolt Extender Installation - 2015 Chevrolet Express Van

Hi there Express fan owners, today in our 2015 Chevrolet Express, we're going to be showing you how to properly add powered accessories to your side post battery using Deka's side posts battery extender. T.he problem we have with our factory bolts is that there's no room to add any ring terminals or additional wiring to it.If you try to, you can potentially damage the threads on your battery.If we go over here to our positive post, we've already got our extender in place, and you can see here, we've got plenty of room to add wires to power, any of our accessories.And we have no fear of damaging our battery.The post is made of brass. So it's going to be an excellent conductor.The bolt length itself is one and three-quarter inches, and this is important if your batteries in a tray, that's got a pretty tight fit. You don't want your battery positive, sticking out to work in ground on anything on the body.Let's go ahead and install it now, and we'll show you how to do that.We'll begin by removing our battery positive post.If you are worried that you may touch your wrench on anything grounded, you can take your negative terminal off first as this is recommended to keep you from accidentally shorting anything out.Once you've got it loose, we can just take it off here, and that will pull it back.Our bolt we'll then remove from the rubber covering, maybe helpful to use a pick or a flat-bladed screwdriver to assist you in getting out of there.Regardless of which vehicle you have, all your side posts are basically the same. They all use a very similar sized bolt and similarly shaped a rubber housing that keeps the bolt in place.And on your express van here, your side post, isn't going to be different than anything else.Your battery post is going to be inside of your rubber housing here, we'll just need to pop that out of there.So you can use a pick or a flat blade screwdriver to work your way behind the covering, and pop the bolt out.We'll now take our new one from Deka, slide it all the way in, and then we can reinstall it onto our battery.When tightening it down you want to make sure you don't over-tighten it as the lead material inside is a softer metal, so it is possible to over-tighten it.We'll tighten it down using a five, eight inch wrench or socket.The stud coming off of our post is one and three quarter inch length, which gives you plenty of length to add accessories and be able to fully tighten the nut on it.And the diameter of our stud is three eighth of an inch.So you want to make sure you purchase appropriately sized ring terminals to get all of your accessories mounted.If you need some ring terminals. So you can pick those up here at

Any accessories can be attached to that new positive power.We're going to be using ours for our brake controller that we're setting up on our express van.So we can just slide those on there, and this is going to give us power, not only to our brake controller, other one's going to give us power to the charge line back at the back of the vehicle, cause we also edit a fully functional seven way connector.Once you've got your ring terminals pushed on any accessories, you're going to be installing, just install the nut that comes with it and tighten it down.I highly recommend that you use the five eights wrench you we're using before to hold the stud, so you don't over-tighten it on the battery and then tighten it down with a second wrench.That is a nine sixteen size for the nut.And that completes our look at Deka Side Post Battery Extender on our 2015 Chevrolet Express Van.

Customer Satisfaction Score:

Customer Reviews

Battery Side Bolt Extender - Brass - Short - DW05416

Average Customer Rating:  4.6 out of 5 stars   (39 Customer Reviews)


Works as described.


I built my recovery trailer built, than ks


This item was easy to install and use. My main complaint here was the use of a cad plated steel nut. Long term, I will want to replace the steel nut with an appropriate brass nut (3/8-24) if I can find it. Second choice would be a stainless steel nut. The cad steel nut will be likely to corrode relatively quickly.


Awesome selection, great prices, knowledgeable sales people and quality products. After viewing the many different options and narrowing down to a few selections I liked, my AWESOME sales person Kat really helped me decide on the proper trailer braking module and towing hitch I needed for my situation. I simply wanted the best highest quality product on the market for my set-up period, That's what I got without compromise! EVERY part of this process was very easy and couldn't be happier! is "good as it gets" in my book. I'm a tuff critic when it comes to quality parts and knowledgeable service and EXCEEDED my expectations! I recommend everyone I hear inquiring or talking about trailers to My son purchased a new trailer just after I received my parts from and was so impressed with my experience he called and received the same professional knowledgeable service and parts as I did. I know with confidence I have the BEST trailer components on the market when I'm pulling my double axle enclosed motorcycle trailer to the races.
Thank you Kat and !


This fit my battery perfectly and was easy to install. The only problem I had was this was recommended with the Universal Installation Kit for Trailer Brake Controller and the post is to big for the supplied ring terminal. If you buy this with that kit you're going to have to buy some additional larger ring terminals.


The lug terminal for the 10ga wire would not fit the item, It also had a steel nut that will rust in less than a year on the battery. I did not use it and will not bother returning it as it will cost me to return it. I got a gold plated one that the 10ga lug fit and from auto zone, It cost about the same as yours.

Also I ordered two and only received one in the mail, I guess I will be charged twice for postage.

Thanks for the follow up Mike. I have requested that customer service contact you regarding the shipping issue.
-- Etrailer Expert Rachael H - 08/18/2017


Purchased the items listed after watching the video. Everything fit and worked perfect. The video was extremely helpful. Have bought other items from E-trailer for other vehicles and as with this order items were delivered timely.

Highly recommend E-trailer. Saves a lot of time running around trying to find everything needed for a hitch and brake controller install.


Does the job for GM trucks with dual batteries and a big cable running between them. I wanted to add a battery maintainer that came with ring crimp connectors. This did the job. The ring connectors never fit properly UNDER the cables and I was worried that that arrangement was preventing a good connections of the cable to the battery.


I purchased everything required to wire a 7 pin trailer connector for a 2011 Chevy Express van.

The best thing I can say is the video series specific to the vehicle was amazing.

Quality of the parts was very good.

All of the parts arrived in good codition, with fast shipping to Vancouver Island, Canada.

Would definitely order more from this company.

Well done.


These side battery terminals have performed very well. They are great for connecting the accessories to the battery.


Nice product.Required for Winch power connection. Good for any additional power or ground wire connections when using side terminal batteries.


the batt post extenors will work great in my dodge ram for the extra running lites-elec fan and future items i will install on my pickup great price from etrailer and great shipping


These are a must to connect 2 wires to a side mount battery. They will also help if you need to jump off your truck. GM should have made these part of the original battery.


Product worked great as described. I used it in my 2003 Grand Prix since I needed a place to hook my Amp power wire.


It fit the battery and cable well. The Van is now starting fine.


solid bolt


Delivered on time. Exactly what I was expecting. Good quality. Holding up very well. If I ever need another one, will not hesitate to order again.


Product good quality. Took longer to recieve than expected using basic mail option. Would have been cheaper and quicker to get item from local [retailer].


This is a handy way of making an electrical connection to your battery!


Got to have this to connect all the new wires to the side post battery.


does the job


This product is amazing after owing it for a year haven’t had and troubles, easy to install definitely recommend it


Great service and product




eactly what i needed at a good price , delivered quickly. what more could you ask for?

Show More Reviews

See what our Experts say about this Deka Accessories and Parts

  • How Would Winch Circuit Breaker Attach to Side Post Battery
    With side post batteries you can use extender adapters like the # DW05416 to allow you to easily connect accessories to a battery like the winch circuit breaker you referenced.
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  • Recommended Battery Terminal Extender For 2014 Chevrolet Suburban
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    The diameter of the stud on the Battery Side Bolt Extender # DW05416 that you mentioned is 3/8 of an inch. For a ring terminal designed to fit that you would want the part # DW05705-1. I would also recommend you go with a 20 amp breaker like part # 9506P if you plan to tow a trailer with up to 4 brake assemblies. Otherwise the warranty of the controller would be voided.
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  • Brake Controller And Wiring Recommendation For 2012 Dodge Grand Caravan
    Without Factory Trailer Connector means the vehicle has no 7-way connector at the rear for hookng up a trailer. You may have a 4-way trailer connector on your 2012 Dodge Grand Caravan. If you have a 4-way connector on the backof your Grand Caravan, then you would need the Universal Installation Kit for Trailer Brake Controller, part # ETBC7. This will give you both a 4-way and a 7-way connector at the back of your vehicle. There is some additional wiring that has to be done. I have attached...
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  • Parts Needed to Add 7 Way and Brake Controller to 1998 Chevrolet Truck
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