WIRTHCO
WirthCo Battery Doctor 21049 Circuit and Spark Plug Tester for 12V to 24V Systems, 8 Inch Body, 45 Lead Wire, Alligator Ground Clip, 3 Metal Probe with Cap (21049)
WirthCo Battery Doctor 21049 Circuit and Spark Plug Tester for 12V to 24V Systems, 8 Inch Body, 45 Lead Wire, Alligator Ground Clip, 3 Metal Probe with Cap (21049)
SKU:W4821049
In stock
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- Genuine brand-name parts
- Ships from US warehouse
- 30-day returns
- CIRCUIT AND SPARK PLUG TESTING - Quickly locates wiring problems including bad connections, faulty or broken wires, and sockets, helping diagnose electrical issues in vehicles, trailers, and powered equipment.
- CLEAR LIGHT INDICATOR - The indicator light shines when the battery and circuit are sound; no light appears if there is a short circuit or the battery is low, giving fast pass or fail feedback at the test point.
- 12V TO 24V SYSTEMS - Works on both 12 volt and 24 volt systems, making it suitable for automotive, marine, RV, powersports, and DIY garage electrical troubleshooting.
- METAL PROBE WITH CAP - Pointed 3 inch metal probe reaches connectors, fuse terminals, and sockets, and the included protective cap keeps the tip covered between uses for safer storage in a toolbox.
- COMPACT BODY WITH LONG LEAD - The 8 inch tester body pairs with a full 45 inch lead wire and alligator ground clip, giving reach from a grounded battery post or chassis point to test locations across the vehicle.
| Brand | WIRTHCO |
|---|---|
| Manufacturer part number | 21049 |
| UPC / GTIN | 10054210492 |
| Weight | 0.50 lb |
| Dimensions (L × W × H) | 9.2 × 0.9 × 0.5 in |
| Category | Engine & Drivetrain |
| Condition | New — genuine brand-name part |
Shipping & delivery
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
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
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.
