Teng Tools Spark Plug Socket — M120040-C

Teng Tools 1/2 Inch Drive Spark Plug Socket 16-21mm - Metric Spark Plug Removal Tool Sold Individually - Choose Your Size

16mm
$9.99
$9.99
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Teng Tools Spark Plug Socket — M120040-C
  • Teng Tools Spark Plug Socket — M120040-C
Teng Tools 1/2 Inch Drive Spark Plug Socket 16-21mm - Metric Spark Plug Removal Tool Sold Individually - Choose Your Size

Teng Tools 1/2 Inch Drive Spark Plug Socket 16-21mm - Metric Spark Plug Removal Tool Sold Individually - Choose Your Size

$9.99
$9.99
Size
In stock
  • Fast US dispatch from our Fort Worth, Texas warehouse
  • Genuine Teng Tools — professional-grade, designed in Sweden
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  • Backed by guarantee — built to last a working lifetime
Data sheets (3 PDFs)
When your engine calls for a 21 mm plug, having the right tool on hand saves time and prevents damage. This Teng Tools 21 mm socket is built around a 1/2 inch drive square, connecting to the ratchets, breaker bars, and torque wrenches you already rely on every day. The larger 1/2 inch drive provides more leverage than smaller-drive alternatives, which matters when plugs are seized from heat cycling or installed at higher torque values. Whether you are performing routine maintenance or tackling a more involved engine rebuild, this tool delivers controlled, even force to the plug hex. Sold individually, this socket lets you buy exactly the size you need. Many kits on the market bundle SAE and metric sizes together, but if your vehicle only requires 21 mm, there is no reason to pay for five sockets when one will do. Add it to your existing Teng Tools collection or start building a set one size at a time. Teng Tools designs every product for professional use, so you can count on a precise fit and dependable performance across repeated service intervals. Keep this 21 mm socket in your toolbox and reach for it whenever the job calls for a metric plug change.
Also part of 5 tool kits

Kits shown in red are available to buy.

Specifications

TypeAuto Tools
CategoryEngine Tools
Drive size1/2"
Part numberM120040-C
Shipping

Free shipping on orders over $99. Orders are stocked, picked and shipped from our warehouse in Fort Worth, Texas — orders placed on business days ship same-day wherever possible.

Lifetime warranty

Teng Tools hand tools are backed by a lifetime warranty against manufacturing defects. Screwdriver bits and socket bits are consumables and are guaranteed to meet dimensional standards. Torque wrenches and air tools can be serviced and recalibrated on request — contact us to arrange it.

Returns

Not right for the job? Contact us within 30 days of delivery and we'll sort out a return or exchange. Tools must be unused and in their original packaging. Warranty claims are handled separately — a defective tool is our problem, not yours.

Why Teng Tools?

Swedish Design Since 1985

Trusted in 30+ countries. Designed in Sweden, built to ISO and DIN standards.

Shipped Fast from Texas

US warehouse in Fort Worth, so orders move fast. TAA approved for government and defense.

Lifetime Warranty

Something goes wrong? Send a photo and your order number — same-day shipping on replacements.

The Devil Is in the Detail

Satin-finish wrenches, through-blade screwdrivers, heavy-gauge storage — built to last.

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