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Wire (East Penn Mfg Co) 05327 Copper Battery Lug 4 Gauge 3/8 Inch Stud

Manufacturer

Wire (east Penn Mfg Co)

<h3>About East Penn Manufacturing Wire &amp; Cable Products</h3><p>Founded in 1946, <strong>East Penn Manufacturing Co.</strong> has grown from a small, single-room operation into one of the most respected names in American manufacturing. The Lyon Station, Pennsylvania-based company remains privately held and family-owned — a distinction that has shaped its culture of precision, reinvestment, and long-term quality. While East Penn is perhaps best known as the world's largest single-site lead-acid battery manufacturer, its Wire &amp; Cable division stands on equally impressive footing: <a href="/7654-wire-east-penn-mfg-co-primary-wire-10128">primary wire</a>, battery accessories, and electrical components that serve automotive, marine, commercial, RV, lawn &amp; garden, and trailer applications.</p><h3>North America's Largest Wire &amp; Cable Provider</h3><p>East Penn's wire and cable operation is housed in a 250,000-square-foot, ISO 9001:2015-certified facility — one of the most advanced of its kind in the industry. The company is vertically integrated, managing every step of the process from raw copper rod to finished product, which gives it tight control over quality and lead times that few competitors can match. That hands-on approach means every spool of wire and every <a href="/7654-wire-east-penn-mfg-co-battery-terminal-10091">battery terminal</a> leaving the facility meets rigorous standards before it ever reaches a technician's workbench.</p><p>East Penn's primary wire lineup spans 80°C general-purpose thermoplastic-insulated wire, 105°C high-heat wire, and cross-linked polyethylene (GXL and SXL) variants engineered to handle demanding under-hood environments. These wires are designed for point-to-point, low-voltage wiring across trucks, trailers, boats, and automotive platforms alike — built with full-gauge copper conductors and smooth, oil- and acid-resistant PVC jackets that route cleanly through loom or conduit.</p><h3>Battery Terminals &amp; Terminal Protection</h3><p>East Penn's battery accessories division is the natural complement to its wire line. Cast terminals are produced using a gravity lead-casting process with 100% recycled lead from the company's on-site, EPA-permitted smelter — a fully circular manufacturing approach that is both environmentally responsible and technically superior. Lead remains the premium material for battery cable terminals due to its excellent current-carrying capacity, malleability, and resistance to corrosion.</p><p>Protecting those connections is equally important, and East Penn's <a href="/7654-wire-east-penn-mfg-co-battery-terminal-protector-10092">battery terminal protectors</a> are purpose-built to extend the life of electrical connections by shielding terminals from moisture, acid vapor, and corrosive buildup — common enemies of reliable starting power. Together, East Penn's terminals and protectors form a complete connection solution that keeps vehicles and equipment running at peak electrical efficiency.</p><h3>Trusted Across Industries</h3><p>Whether you're wiring a trailer, servicing a fleet vehicle, restoring a classic car, or rigging a marine vessel, East Penn's wire and cable products are engineered to perform. The brand's commitment to domestic manufacturing, quality certifications, and vertically integrated production has earned it recognition across automotive OE, aftermarket, marine, and commercial channels. With over 75 years of experience and a product line that spans hundreds of configurations, East Penn remains a go-to source for professionals and DIYers who demand reliability from every connection.</p>

Part Number

05327
06/01/2036 3:59 AM
Sale Price

$2.72

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The East Penn Manufacturing 05327 is a heavy-duty copper battery lug designed for secure electrical connections in automotive, marine, RV, and powersports applications. This terminal lug features a 4 gauge wire capacity with a 3/8 inch stud hole, providing a reliable connection point for battery cables and power distribution systems.

Key Features:

  • 4 gauge wire capacity for high-amperage applications
  • 3/8 inch eyelet opening for standard stud terminals
  • Constructed from pure copper for maximum conductivity
  • Seamless barrel design ensures secure wire crimping
  • Ideal for battery terminal connections, starter circuits, and power distribution
  • Compatible with standard crimping tools

This copper lug terminal provides excellent electrical conductivity and corrosion resistance when properly installed. The precision-formed eyelet ensures a tight fit on 3/8 inch battery posts and studs, while the 4 gauge wire barrel accommodates standard automotive and marine battery cables. Perfect for battery replacements, electrical system upgrades, or custom wiring projects.

Amazon checkout was nice.

Nice site, good price

I got the part I ordered and will be having someone install it soon looks just fine and I love the chat feature as well.. thinking about buying brake shoes now.. a lot of savings

great price

Easy ordering experience

Great prices hence why after a search on my desired part why I showed up at their store. Had great communication with their staff throughout the entire process.

Good Website. User Friendly. Able to quickly find and determine if part would fit my car. Like the pricing and shipping options (unlike some others that only offer ground shipping)

I selected 2nd day delivery as I need this ASAP. please and thanks

Transaction has been smooth so far. Pricing is great compared to other online retailers.

I hope its the correct part!

blarg...

shipping discount pop-up (2x) was annoying.

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