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  • Lincoln K4175-4 VIKING™ 1840 Series Aztec Welding Helmet

Lincoln K4175-4 VIKING™ 1840 Series Aztec Welding Helmet

$ 372.00


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Lincoln K4175-4 VIKING™ 1840 Series Aztec Welding Helmet


The VIKING 1840 Series, our mid-range auto-darkening helmet tier, offers superior 4C(R) optics with a versatile user interface and premium external controls to increase productivity.

  •          Industry Leading Optics - 4C Lens Technology, 1/1/1/1 Optical Clarity and expanded 7-13 shade range
  • Digital User Interface – Moisture and abrasion resistant push button LED UI shade, sensitivity, delay and mode control
  • Increased Productivity - External low profile grind control
  • All Day Comfort  Soft, padded front headband to help eliminate pressure points, while the two top head straps evenly distribute weight.
  • Enhanced Safety – New optic test functionality and UV/IR DIN 16 lens safeguard
  • 3 Year Warranty – Protects your investment for 36 months from date of purchase


The new 4C ADF Technology improves the performance of the lens in the 4 most important categories to the welder:

  • Clarity - Optical Clarity 1/1/1/1
  • Color - Real Color View
  • Carat - Light Weight
  • Cut - Even Shade From Any Angle

The 4C Lens Technology upgrade to Lincoln Electric’s VIKING welding helmets improves visibility and reduces eye strain by minimizing the traditional lime green coloring in the helmet view screen. 4C technology is ideal for a range of industries such as general fabrication, power generation, shipbuilding, structural, offshore and pipeline that use multiple welding processes, including Stick, MIG and TIG. Whatever the task at hand, 4C technology gives you a clear view to productivity and quality.


Better Clarity, Real Color View

Now you can make a good view even better. Upgrading with 4C technology preserves the existing 1-1-1-1 optical clarity rating, but improves visibility by reducing the lime green tint.

Easy On The Eyes
Improved visibility and less eye strain means greater comfort for the welder. This combined with an improved view of the weld puddle adds up to better welds.

Wide-Screen View
4C technology enables you to not only see better, but also see more. The large viewing area gives you a full range of vision in relation to the welding area, which enhances operator control.

Increased Battery Life
The longer you can see clearly, the more you can weld. And more welds mean higher productivity. Improvements to the ADF’s circuitry enables more performance from the battery. Now you can keep welding, increase your productivity and get more from your helmet lens.



  • Innovative 4C Lens Technology improves visibility and reduces eye strain
  • Low-profile external grind button
  • Better clarity, real color view - 1/1/1/1 Optical Clarity
  • Easy on the eyes
  • Wide-screen view
  • Increased battery life


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When it comes to welding, there is no room to skimp on safety. You are exposed to extreme elements on a daily basis and must have the right gear and apparel to keep you protected from intense flames, flying sparks, metal shards, and more. At Welding Outfitter, we are dedicated to helping the welding community stay as safe as possible, which is why we stock our shelves with only the very best gear, apparel, tools, and equipment. The Lincoln K4175-3 Aztec 1840 Viking Welding Helmet is one of the many outstanding welding helmets we sell as part of our commitment to quality. If you are in the market for a new helmet, this is the option you have been waiting for.

Lincoln Welding Helmets: Among The Industry’s Best

Lincoln Electric has remained a trusted name in the heavy-duty industry for over a century. Founded by John C. Lincoln in 1895 as an electric motor company, the business quickly expanded to serve the welding community. The brand is synonymous with quality and continues to produce products that last.

The Lincoln K4175-3 Aztec 1840 Viking Welding Helmet is one of the brand’s popular Viking welding helmets featuring a wide range of exceptional features. This affordable helmet has a perfect 1/1/1/1 optical clarity rating, pivot-style headgear, and external shade controls for quick and easy adjustments. The versatile helmet also features unique graphics and is both lightweight and compact. Its TIG rating is 5 amps, and the light to dark switching time is a mere 0.0004 seconds. The product is powered by Lithium Battery CR 2450 and weighs 18 ounces. Additional features include shades 9 through 13.

The Welding Outfitter Promise

At Welding Outfitter, we strive to make our products as affordable as possible. You will never see anything other than the highest-quality products from top brands from our site, but one thing you will NOT see is sky-high prices. We understand the importance of keeping prices affordable so our customers never have to sacrifice quality or safety. Rebates and specials are frequent at our online store, as are extended warranty offers.

Our promise to our customers also includes efficient shipping practices. We work with some of the best shipping manufacturers in the country to get your products to you quickly and without incident. The welding industry is as fast-paced as ever, so who has time to wait around for their orders? No matter where you live in the lower 48 states, you can expect your products at your doorstep promptly. We also offer free shipping on all orders of $100 or over to help keep your costs low, especially if you are ordering for your entire crew.

Experience the Welding Outfitter difference, and know you are working with a company committed to your safety. We are always here to answer your questions and make ordering your products as easy and efficient as possible. How can we help you work better today?



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