Wirthco
WirthCo 20310 Knob Battery Switch with Bypass for Side Mount Batteries, Black
WirthCo 20310 Knob Battery Switch with Bypass for Side Mount Batteries, Black
SKU:W4820310
In stock
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- Free shipping on $70+
- Ships from US warehouse
- 30-day returns
The Wirthco 20310 is a knob battery switch with bypass.
Key features
- Side-Mount Battery Disconnect: Installs on the negative battery post and disconnects power by unscrewing the knob a few turns; retighten the knob to restore the connection.
- 15 Amp Fused Bypass: Built-in fused bypass circuit maintains power to computer settings, radio, and clock while the main battery connection is disconnected.
- 500 Amp Surge And 125 Amp Continuous: Rated for 500 amps surge and 125 amps continuous at 12 volts, suited to automotive, marine, RV, and powersports use.
- Theft Deterrent Knob: Knob can be removed completely to help deter unauthorized starting or battery use when the vehicle or equipment is unattended.
- Compact Fit With Terminal Markers: Compact size fits most battery compartments and the retail package includes Battery Terminal Markers (part 20250) for positive and negative identification.
Before you order
- Check the group size, terminal layout and cold-cranking amps against your current battery.
- Compare the connector and the part number on your old part before ordering.
Specifications
| Brand | Wirthco |
|---|---|
| Manufacturer part number | 20310 |
| Part type | Electronic Switch |
| UPC / GTIN | 10054203104 |
| Weight | 0.50 lb |
| Dimensions (L × W × H) | 6 × 2.2 × 1.5 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.
