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)
SKU:W4830300
In stock
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- Free shipping on $70+
- Ships from US warehouse
- 30-day returns
The Wirthco 30300 is a battery doctor side terminal battery bolt.
Key features
- 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.
Before you order
- Check the group size, terminal layout and cold-cranking amps against your current battery.
Specifications
| Brand | Wirthco |
|---|---|
| Manufacturer part number | 30300 |
| Part type | Auto Part |
| UPC / GTIN | 10054303002 |
| Weight | 0.50 lb |
| Dimensions (L × W × H) | 4.8 × 0.8 × 2.8 in |
| Category | Electronics & Audio |
| Condition | New |
| Returns | 30-day returns on unused items |
Questions
What does shipping cost?
Standard shipping is free on orders of $70 or more to the lower 48 states and DC, and $8 below that. Express is $15 at checkout. Orders ship the same business day when placed early in the day, otherwise the next business day; standard delivery takes 3–5 business days. Alaska and Hawaii are charged by weight at checkout.
Can I return it?
Yes — unused items in the original packaging can be returned within 30 days of delivery. A restocking fee may apply; see our refund policy.
Shipping & delivery
Shipping & delivery
Free standard shipping on orders of $70 or more to the lower 48 states and DC; $8 on smaller orders. Express is $15 at checkout; Alaska and Hawaii are charged by weight. Orders ship from the warehouse closest to you — the same business day, or the next business day if ordered late in the day, on a weekend or holiday. Standard delivery takes 3–5 business days. 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
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 return shipping is the buyer’s responsibility unless the item arrived defective, damaged or incorrect. Items marked Final sale can't be returned. If a part fails, contact us with your order number and we'll help with the manufacturer's warranty claim.
Fitment & part numbers
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.
