Description
| Manufacturer |
Hobart |
| Part Number |
H381806-R18 |
| Item Weight |
1 pounds |
| Item model number |
H381806-R18 |
| Size |
0.030-Inch |
| Material |
Aluminium |
| Installation Method |
mig-welding |
| Item Package Quantity |
1 |
| Cutting Diameter |
0.04 Inches |
| Batteries Required? |
No |
| Assembled Diameter |
0.04 Inches |
From the Manufacturer
Aluminum welding wire ER4043 is a general-purpose type aluminum welding wire. It contains silicon additives, which result in improved fluidity (wetting action) of the weld pool and also produces a weld less sensitive to cracking. Its bright weld finish makes it a popular choice of welders. It can be used to weld various grades of aluminum. 0.030-Inch wire diameter ER4043 1-Pound spool
Imported customer feedback
What customers reported
4.6 / 5
396 ratings
Source: Amazon. These reviews were imported from the source marketplace and are not reviews of purchases made on this website.
No structured vehicle fitment data is available. Compare the listing with the vehicle and existing part before ordering.
Exact identity, part numbers, model references, and available compatibility evidence
Buying guidance
Quick decision
An identity-first spot welding equipment listing organized around stable product references and available compatibility evidence.
Fit and size notes
- Match the complete identifier, side, position, connector, dimensions, and visible design with the existing part.
- Treat uncertain vehicle notes as a buying aid, not as a confirmed fitment guarantee.
Specification notes
- Canonical product: MP-US-B002AKJ22K
- Source product ID: B002AKJ22K
- Category: Tools & Equipment / Welding Tools / Welding Equipment & Accessories / Spot Welding Equipment
- Available images: 2
- Size: ['0.030-Inch', '0.035-Inch']
Before you buy
- Match the complete identifier, side, position, connector, dimensions, and visible design with the existing part.
- Treat uncertain vehicle notes as a buying aid, not as a confirmed fitment guarantee.
SJK –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Size: 0.030-Inch|Verified Purchase
I used this H381806-R18 aluminum wire along with my Hobart handler 140 to make a few tack welds and a couple small stitch welds to repair some broken 1/8″ aluminum plate and angle stock parts. The wire chart for my welder lists only .030″ as the size aluminum welding wire it can use, so that is why I went with this instead of the heavier .035″ aluminum wire. This wire needs to be used with Argon shielding gas and the MIG gun liner and contact tip in my H-10 gun also needed to be replaced to prevent carbon contamination from the steel flux core wire I normally use. I purchased a new Welding City 194T-011 Teflon liner here on Amazon that worked fine for my use. I don’t need to make welds in aluminum all that often, so for only limited use maybe a couple of times a year, I really couldn’t justify the cost of a spool gun and since this welding wire worked well enough for my application, considering what it cost I think it was a good economical choice.
The Honest Critique –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Size: 0.030-Inch|Verified Purchase
I am not sure how many thousands of inches of this welding wire I have used, but I do love the smaller od and the puddle control. The centerl hole is slightly smaller than the Vulcan welding wire I have been using.
Smitty –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Size: 0.030-Inch|Verified Purchase
I use hobart ER4043 with a spool gun for the majority of my boat repairs. It bonds well with older aluminum. Just remember clean, clean, clean your aluminum good.
Ken Butt –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Size: 0.030-Inch|Verified Purchase
works very well in a spool gun and pretty good in a mig cable.
Kent B. –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Size: 0.030-Inch|Verified Purchase
Flows very nice used to weld 3/16 sheet welds really nice
Jrlyrnyrdskynyrd –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Size: 0.030-Inch|Verified Purchase
I needed to repair an aluminum foor frame. Bought this wire for my spoolgun and made my repairs. The frame of motorhome door has been broken for years and I am glad to have finally repaired it.
shirley ladouceur –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Size: 0.030-Inch|Verified Purchase
BIEN RECU ET VA BIEN
dragonlord –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Size: 0.030-Inch|Verified Purchase
I’ve recently been working with the Hobart H381806-R18 1-Pound ER4043 Aluminum Welding Wire, and it has been a game changer for my aluminum welding projects. The 0.030-inch diameter is perfect for the kind of work I do, providing a good balance between precision and strength.One thing I immediately liked was how smoothly this wire feeds through my MIG welder. It’s consistent and doesn’t snag, which makes the welding process so much more efficient. The welds themselves come out clean with minimal spatter, which means less time spent on cleanup.The penetration is impressive, creating strong welds that hold up well under stress. I used this wire on a couple of different projects, including patching an aluminum boat and fabricating a custom bracket for an engine mount. In both cases, the wire performed flawlessly, producing solid, durable welds.There’s a bit of a learning curve if you’re not used to welding aluminum, particularly with getting the settings just right on your welder. However, once dialed in, this wire makes the process much more manageable.In terms of dislikes, there really isn’t much to complain about. It might be slightly more expensive than some other brands, but the quality is worth it. Plus, the spool is well-made, preventing any tangling or issues during the feed.This Hobart aluminum welding wire has definitely earned its place in my welding kit, and I’d recommend it to anyone looking for reliable performance in their aluminum welding projects.
kevin –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Size: 0.035-Inch|Verified Purchase
So this is what I purchased for the first time ever welding aluminum. My welds were nice and sturdy. Unfortunately I have nothing to compare it to as far as other brands or 5xxx series wires. But for what it’s worth I would definitely buy it again and recommend it
Regis Dassylva –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Size: 0.030-Inch|Verified Purchase
na
JDub –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Size: 0.030-Inch|Verified Purchase
Great Product!
Serge jacob –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Size: 0.030-Inch|Verified Purchase
Merci
HECTOR E. –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Size: 0.030-Inch|Verified Purchase
Envio rapido y en perfecto estado. Aun no lo he ensayado, una vez lo haga escribir.