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Battery Doc 21049 Circuit & Spark Plug Tester

Manufacturer

Picture for manufacturer Battery Doc

Part Number

21049
9 reviews
Sale Price

$21.13

In Stock (10)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Battery Doc 21049 Circuit & Spark Plug Tester is a versatile diagnostic tool designed to quickly identify electrical faults and test spark plug function in automotive and small engine applications. This 2-in-1 tester simplifies troubleshooting by allowing technicians and DIYers to check for open circuits, shorts, and spark plug firing — all with a single, easy-to-use tool.

Key Features:

  • Tests both circuit continuity and spark plug operation in one compact unit
  • Quickly identifies open circuits, grounds, and power presence in 6V and 12V DC electrical systems
  • Spark plug tester confirms ignition spark without removing the plug from the engine
  • Easy-to-read indicator light provides instant pass/fail results
  • Suitable for use on cars, trucks, motorcycles, lawn mowers, and other small engines
  • Lightweight and compact design for convenient storage in a toolbox or glove compartment
  • Retail packaged for easy display and gift-giving

The Battery Doc 21049 is an essential addition to any garage or workshop, making basic electrical diagnosis fast and straightforward without the need for expensive equipment.

Great shipping time and clearly kept me up to date. Product was well packaged.

Awesome!

Had what I want at a very good price.

Great price

It was easy ordering the parts and I got them in a reasonable time and just what I ordered

My customer service experience was very helpful, the product works great, and they got my expedited order shipped out quickly! Very satisfied.

Carl L Scoggins Jr

I think the shopping experience was great. Now we will see how the shipping experience is! Thank you. I wish we could’ve had a coupon or a discount with this purchase. Maybe you could let us know if we can get one for this purchase?

So far in the purchasing process prior to shipping ,experience has been quick and painless.

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