| Manufacturer | Fastronix Solutions |
|---|---|
| Brand | Fastronix Solutions |
| Item Weight | 1.15 pounds |
| Package Dimensions | 8.07 x 6.57 x 1.1 inches |
| Item model number | 940-400 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 940-400 |
| Voltage | 12 Volts |
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- EXCEPTIONAL PROTECTION: Including malfunctions and failures, plus drops or spills for eligible portable items.
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Add to your order
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Coverage for accidental damage including drops, spills, and broken parts, as well as breakdowns (plans vary) -
24/7 support when you need it. -
Quick, easy, and frustration-free claims.
Add to your order
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Coverage for accidental damage including drops, spills, and broken parts, as well as breakdowns (plans vary) -
24/7 support when you need it. -
Quick, easy, and frustration-free claims.
Fastronix Military Spec Battery Terminal Top Post Kit
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Purchase options and add-ons
| Brand | Fastronix Solutions |
| Recommended Uses For Product | Replacement Battery Terminals for Multiple Wires |
| Unit Count | 1.0 Count |
| Voltage | 12 Volts |
| Reusability | Rechargeable |
About this item
- USA Made Battery Terminals and Covers!
- (1) Positive and (1) Negative Lead Alloy Battery Terminals for Increased Strength and Reduced Corrosion
- (4) 3/4"x 1-1/2" adhesive lined heatshrink (4) 2 gauge 3/8" copper lugs
- (1) Red and (1) Black Military Spec Battery Terminal Covers
- All in One Kit for Multiple Battery Installations (Battery Cable Not Included)
Additional Details
Fastronix Solutions products customers bought together

4 stars and above
From the brand
Setting the Standard in Wiring
Fastronix separates itself by delivering products that not only exude professionalism but consistently exceed performance expectations.
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Start with a Strong Connection
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We Have You Covered
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Spread the Power Around
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Protect Your Important Devices
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Switching Gears
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Secure and Protect Your Wiring
Product description
Standard Features
Cast Lead Terminals
- Lead construction allows terminals to effectively grab battery terminals
- Standard size fasteners (1/2" top / 9/16" bottom)
Installation Instructions:
- Slide terminals over battery lugs
- Slowly tighten short bolt until the terminal won't rotate.
Durable Adhesive Lined Heat Shrink
- Fully seal your battery terminal connectors
Installation Instructions:
- Slide heat shrink over crimped or soldered terminal.
- Using heat gun on high temperature setting, evenly warm the heat shrink until it fully seals the connection.
- Allow heat shrink to cool to room temperature.
Quality Copper Lugs
- Designed for 2 gauge wire
- 3/8" hole allows for installation on the long bolt of the terminal
Installation Instructions:
- Strip approximately 1/2" of insulation from the battery cable.
- Insert the battery cable into the terminal and crimp using a crimping tool.
Durable Terminal Covers
- Prevents corrosion and incidental shorting.
- Gives professional look to your installation.
Installation Instructions:
- Slide cover over wires to be installed
- Install wires onto the long bolt of the terminal.
- Slide covers over the terminals.
Fastronix Quality Copper Battery Terminal Lugs 4 Pack (3/8" 4 Gauge)
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Fastronix 90 Degree Tinned Copper Lugs 3/8" 2 Gauge 2 Pack
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Fastronix 90 Degree Tinned Copper Lugs 3/8" 4 Gauge 2 Pack…
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Fastronix 45 Degree Tinned Copper Lugs 3/8" 2 Gauge 2 Pack
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Fastronix 45 Degree Tinned Copper Lugs 3/8" 4 Gauge 2 Pack
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| Customer Reviews |
4.6 out of 5 stars 212
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4.6 out of 5 stars 128
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4.6 out of 5 stars 128
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4.8 out of 5 stars 44
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4.8 out of 5 stars 44
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| Price | — no data | $9.99$9.99 | $9.99$9.99 | $9.99$9.99 | $9.99$9.99 |
| Compatible with Fastronix Military Battery Terminals | ✓ | ✓ | ✓ | ✓ | ✓ |
| 2 Gauge Cable | no data | ✓ | no data | ✓ | no data |
| 4 Gauge Cable | ✓ | no data | ✓ | no data | ✓ |
Fastronix Military Spec Battery Terminal Top Post Kit
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Fastronix Top Post Military Spec Battery Terminal and Cover Kit
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Fastronix Military Spec Battery Connectors- Positive Terminal
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Fastronix Military Spec Battery Connectors- Negative Terminal
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Add to Cart
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| Customer Reviews |
4.7 out of 5 stars 1,241
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4.8 out of 5 stars 893
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4.4 out of 5 stars 109
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4.4 out of 5 stars 109
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| Price | $33.99$33.99 | $25.99$25.99 | $11.99$11.99 | $11.99$11.99 |
| Terminal Covers | ✓ | ✓ | no data | no data |
| Positive Battery Terminal | ✓ | ✓ | ✓ | no data |
| Negative Battery Terminal | ✓ | ✓ | no data | ✓ |
| 3/8" 2 Gauge Copper Lugs | ✓ | no data | no data | no data |
| Adhesive Lined Heat Shrink | ✓ | no data | no data | no data |
Product information
Technical Details
Additional Information
| ASIN | B00X36RILW |
|---|---|
| Customer Reviews |
4.7 out of 5 stars |
| Best Sellers Rank |
|
| Date First Available | May 4, 2015 |
Warranty & Support
Feedback
Products related to this item
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find these battery terminals to be well-built and heavy-duty, featuring military-style cable ends and solid connections. They are easy to install, with one customer noting they work particularly well for winch and light installations, and customers appreciate their clean, professional appearance. Customers consider them the best replacement terminals available, offering good value for money.
AI Generated from the text of customer reviews
Customers praise the quality of the battery terminal kit, describing it as a well-built product with high-quality terminals.
"Great product. I have a 2015 Ford F350, the battery post on the truck broke, Ford doesn't make new ones, ordered two sets of these. They work great." Read more
"Great quality! I think it would work better if it came with #0 ends, who used #4-6 for battery terminals?" Read more
"Good quality. I wish the plastic terminal protectors were a little more tight. But I'll take too big vs. too small." Read more
"This is the real deal. Clean install, safe, well made. I was so impressed I purchased another. You will love this kit." Read more
Customers find that the battery terminal kit works well, with one mentioning it performs perfectly as a replacement part and another noting it functions effectively for winch wiring.
"Product is fantastic. Works great. Just wish it came with more than the given terminals...." Read more
"work great, my old posts kept corroding and after installing these; no corrosion at all and very heavy duty." Read more
"Worked great. Replaced a 34 year old CUCV battery connection that was beyond corroded. Looks great now too." Read more
"used this to replace the old stock ones on my 01 tacoma, works great and has not loosened up at all" Read more
Customers appreciate the heavy-duty construction of these battery terminals, noting they are made with military-style cable ends and are suitable for heavy-duty use.
"Well made,heavy duty, well thought out product. No instructions but found one you tube video ( that’s why I bought it)...." Read more
"Bought these for my off-road Jeep and they work perfect. Heavy duty and allows for addition of winch cables. Came with everything I needed...." Read more
"These are awesome connectors. They are robust, solid, and form a very tight connection to the battery...." Read more
"...connections, the heat shrink and the heavy-duty rubber covers, this is sturdy, well-made hardware that seems like it'll last longer than my truck will" Read more
Customers find the battery terminal top kit easy to install, with one customer specifically mentioning how convenient it is to hook up winches and lights to the battery.
"Love the kit. Well made product, easy to install, and pretty much plug and play...." Read more
"Easy to install. Very clean looking and heavy duty. Fixed my issue with the Jeep not starting from corroded terminals...." Read more
"...Otherwise, great looking product and easy install. Highly recommended this upgrade for your corroded wiring terminals." Read more
"Love this top post kit. Makes everything look good and secure. Super easy to install." Read more
Customers appreciate the battery connectors, describing them as solid terminal connectors with high-quality cable connections.
"These terminals are great! I didn't use the supplied lugs because I had to run significantly larger cables for my dodge...." Read more
"A bit expensive, but a nice solid connection." Read more
"...The terminals had a great, snug file on the battery posts. The covers were also a great fit...." Read more
"These are the best battery terminal connectors I could find and they're well worth it. Easy to assemble and good quality." Read more
Customers appreciate the appearance of the battery terminal kit, noting its professional and well-designed terminals that create an ultra clean-looking installation.
"Looks great. Went on my CJ5 because i needed better mounting options for the positive and negative cables for the winch and for another fuse box...." Read more
"...I have a wj jeep 2002 grand cherokee These worked awesome and look great. Will definetly buy for my boat and 70 Camaro. So much better" Read more
"I really like this style of top battery posts...." Read more
"works and looks great" Read more
Customers are satisfied with the terminal size, finding them to be the best replacements available, with one customer noting they are specifically designed for positive and negative connections.
"Great terminals" Read more
"...ever go back to non-military style terminals again- it's SO nice to remove the wires without having to take the terminal off the post and wear it out." Read more
"...clamp down well on the post and give u a long bolt that is great for adding any wires u need to it the covers are a heavy rubber that was more than..." Read more
"...parts made by a machinist, you can go with this kit that includes military grade terminals, rubber boots, and 4 crimp on cable ends and shrink wrap..." Read more
Customers find the battery terminal kit to be good value for money.
"...I could have soldered them in as well. Best of all great value!" Read more
"...Very happy with this quick fix for a great price." Read more
"...are the best battery terminal connectors I could find and they're well worth it. Easy to assemble and good quality." Read more
"Great value, super rugged terminals...." Read more
Reviews with images
Worth The Investment
Top reviews from the United States
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- Reviewed in the United States on May 13, 2025The finished product looks great. It actually turned out well, I work on my cars but I never really get too deep in automotive electrical. I’ve swapped plenty of batteries but never had to replace the ends. The whole operation was smooth but I was able to utilize my Greenlee K05 crimpers, which are not an every man’s tool. There are similar style tools available for cheap here on Amazon so I’d look into those if you’re going to install this kit. I don’t recommend trying to hammer or squeeze the ends with anything else, crimpers are a specific tool for a reason. I’d fear using any other method will lead to having a bad connection - arcing - electrical fire - no more car. The rubber plastic finish covers didn’t work out though, the intent was nice but it just wasn’t meant to be.
- Reviewed in the United States on January 20, 2021These are excellent top post battery terminals. I've bought two of these kits and both have been high quality. They work great for wiring a winch or other aftermarket electrical accessories that need to connect directly to the battery because you can place large ring terminals on either side of the through bolt, allowing more space to add wires. The use of ring terminals for the individual wires also allows you to easily disconnect the battery without removing the lead terminals themselves. This will help make the lead terminals last longer, as repeatedly removing them from the battery posts deforms the lead and eventually reduces the capability of the terminals to clamp the posts.
This kit includes everything you need to wire in the new terminals, including four crimp on ring terminals for your battery cables, heat shrink for the ring terminals, bolts to attach the lead terminals and battery cables, and nice rubber covers that are color coded. All of the hardware is high quality. The ring terminals are too big for normal crimps, so you will either need a set of battery cable crimps, or use vice grips like I did (not ideal but works, and you can cover the ugly crimp with the heat shrink...)
- Reviewed in the United States on November 30, 2019This kit was more expensive than it would have been to replace the OEM parts, but it was well worth it. I purchased this to replace the terminals on a 2001 Tacoma with the 3.4 V6. The kit is complete, you'll just need to remove the old terminals and then 1/2" and 9/16" wrench to tighten things down, a crimper, and something to heat shrink the included wraps.
The install was straight forward enough. I'm not sure if my terminals had been replaced before, so I had just enough wire to make the replacement. It would be nice if the kit came with a couple of smaller gauge crimp connections that will still bolt to the terminal, as I had to mock up a connection for the ground wire.
All in all, between the crimp connections, the heat shrink and the heavy-duty rubber covers, this is sturdy, well-made hardware that seems like it'll last longer than my truck will
This kit was more expensive than it would have been to replace the OEM parts, but it was well worth it. I purchased this to replace the terminals on a 2001 Tacoma with the 3.4 V6. The kit is complete, you'll just need to remove the old terminals and then 1/2" and 9/16" wrench to tighten things down, a crimper, and something to heat shrink the included wraps.
The install was straight forward enough. I'm not sure if my terminals had been replaced before, so I had just enough wire to make the replacement. It would be nice if the kit came with a couple of smaller gauge crimp connections that will still bolt to the terminal, as I had to mock up a connection for the ground wire.
All in all, between the crimp connections, the heat shrink and the heavy-duty rubber covers, this is sturdy, well-made hardware that seems like it'll last longer than my truck will
Images in this review
- Reviewed in the United States on June 2, 2025Good kit
- Reviewed in the United States on October 5, 2024I only used the positive terminal since that was the bad one, did have to get smaller connectors since the ones with the kit were way too big. Swapped the terminal in, no more starting issue, cranks nice and quick
- Reviewed in the United States on June 15, 2018These are awesome connectors. They are robust, solid, and form a very tight connection to the battery. Several individuals that know cars have looked under my hood and made a point to mention that these connectors look and feel great. In my opinion they are far superior to the steel band clamps that come OEM on many vehicles.
A word of caution... DO NOT SOLDER the copper lugs onto your battery cables. These are crimp lugs, and crimp lugs are designed to be crimped, not soldered. Soldering will eventually cause your battery cables to break off, or worse, partially break causing a high resistance point that can lead to fire. The correct way to install the lugs onto your battery cables is to use a hydraulic crimper or a hammer-anvil type. The hydraulic crimper will form the best connection, but the hammer-anvil type is cheaper and will work fine for someone who only has to install these types of lugs once. Simply search Amazon for lug crimper.
- Reviewed in the United States on March 6, 2020Well made,heavy duty, well thought out product.
No instructions but found one you tube video ( that’s why I bought it).
I have used solder connections like these before so I knew what to expect( tools , procedure).
Basically you hold the connectors upright in a vice ( if you have wires loose from the car) or in something portable (like a pair of vice grips or I used a block of wood with slots cut in it to hold the connector upright).
First put a small amount of flux paste in cup of connector , then heat on low heat with map or propane gas almost immediately add your solder ( I used 60 /40 )until the cup is 3/4 filled.
Have your wire in the car striped and cleaned and fluxed before hand.Quickly carry whatever your using to hold your connector to car and push the wire down into the connector , it stays hot molten for a surprisingly long time.
Hold for about 30 seconds ( wear gloves because the wire will get hot). If put it in crooked it will stay that and let go of it too soon it will pop out. Then put on your heat shrink.
- Reviewed in the United States on July 26, 2025Complete set-up. Worked great with 2AWG strander copper inverter cables from Harbor Freight to replace all the battery cables and geounds in my Jeep Wrangler.
Top reviews from other countries
DanReviewed in Canada on December 8, 20205.0 out of 5 stars High Quality
Was nervous looking for new contacts that would be of good quality and not be dependant on hex screws to hold down a connection like some other products available on Amazon. These are very good quality. Used them on my 2004 Acura TL. Fit great and they have great clamping force. Lots of room to add accesories, and you dont have to disconnect the main to access any accessory wire you may be adding or removing. Nice that they come in different sizes for + and - as that is a common complaint with other products that theyre the both size, not the case with these they are proper size. The rubber covers are awesome too ! Very satisfied and would recommend
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Product Summary: Fastronix Military Spec Battery Terminal Top Post Kit
From Fastronix Solutions
About this Item
- USA Made Battery Terminals and Covers!
- (1) Positive and (1) Negative Lead Alloy Battery Terminals for Increased Strength and Reduced Corrosion
- (4) 3/4"x 1-1/2" adhesive lined heatshrink (4) 2 gauge 3/8" copper lugs
- (1) Red and (1) Black Military Spec Battery Terminal Covers
- All in One Kit for Multiple Battery Installations (Battery Cable Not Included)
Product Description
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