• WIRTHCO 30300 Battery Doctor Side Terminal Battery Bolt and Nut, Solid Brass Threaded Stud, 3/8-16 Thread, 5/8 in Hex, 1.590 in Overall Length, WirthCo (30300)
  • WIRTHCO 30300 Battery Doctor Side Terminal Battery Bolt and Nut, Solid Brass Threaded Stud, 3/8-16 Thread, 5/8 in Hex, 1.590 in Overall Length, WirthCo (30300)
  • WIRTHCO 30300 Battery Doctor Side Terminal Battery Bolt and Nut, Solid Brass Threaded Stud, 3/8-16 Thread, 5/8 in Hex, 1.590 in Overall Length, WirthCo (30300)
  • WIRTHCO 30300 Battery Doctor Side Terminal Battery Bolt and Nut, Solid Brass Threaded Stud, 3/8-16 Thread, 5/8 in Hex, 1.590 in Overall Length, WirthCo (30300)
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WIRTHCO

Battery Doctor Side Terminal Battery Bolt and Nut, Solid Brass Threaded Stud, 3/8-16 Thread, 5/8 in Hex, 1.590 in Overall Length, WirthCo (30300)

Battery Doctor Side Terminal Battery Bolt and Nut, Solid Brass Threaded Stud, 3/8-16 Thread, 5/8 in Hex, 1.590 in Overall Length, WirthCo (30300)

W4830300

$25.99
$25.99
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In stock
  • Genuine brand-name parts
  • Ships from US warehouse
  • 30-day returns
  • DIRECT BATTERY POWER CONNECTION - Replaces the standard bolt in a side mount battery terminal with a threaded stud, giving you an easy and reliable direct-to-battery connection point for accessory wiring.
  • SOLID BRASS CONSTRUCTION - Machined from solid brass for strong, conductive contact between the battery terminal and your power leads in automotive, marine, RV, and powersports use.
  • FITS 3/8 INCH RING TERMINALS - Stud Thread 3/8-16 with .400 in Stud Length accepts one or several 3/8 in ring terminals, so you can stack multiple accessory leads on a single post.
  • IDEAL FOR ACCESSORY WIRING - Excellent for trailer brake controls, amplifiers, inverters, trickle charger pigtails, and other accessories that require direct power from the battery.
  • DOCUMENTED DIMENSIONS - Overall Length 1.590 in, Nominal Diameter 5/8 in hex, Coupler Thread 3/8-16, Battery Insert .400 in, Stud Thread 3/8-16, Stud Length .400 in.
Brand WIRTHCO
Manufacturer part number 30300
UPC / GTIN 10054303002
Weight 0.50 lb
Dimensions (L × W × H) 4.8 × 0.8 × 2.8 in
Category Electronics & Audio
Condition New — genuine brand-name product
Genuine brand-name product, full manufacturer warranty. Ships from the closest US warehouse — normally within 1–3 business days. Questions before you order? Send us the manufacturer part number above and we’ll confirm. 30-day returns on unused items.

Shipping & delivery

Orders ship from the distributor warehouse closest to you, normally within 1–3 business days of purchase. Standard ground delivery takes 3–7 business days in the continental US; expedited options are shown at checkout. Oversized items (bumpers, running boards, large tonneau covers, some marine equipment) ship LTL freight — we contact you to schedule delivery and a signature is required.

Returns & warranty

Unused, uninstalled parts in original packaging can be returned within 30 days of delivery. A restocking fee of up to 20% may apply depending on the product and supplier, and return shipping is the buyer’s responsibility unless the item arrived defective, damaged or incorrect. Every product carries the full manufacturer warranty. Contact us with your order number to start a return.

Fitment & part numbers

Verify fitment with the manufacturer part number shown above and your vehicle’s year, make, model and trim. If the listing says “Fits select…”, confirm your exact application before ordering. Not sure? Send us your VIN and the part number and we’ll check it for you.

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