Teng Tools 3/8 Inch Drive Spark Plug Socket 14-21 mm - Individual Socket, Rubber Insert, 6 Point, Chrome Vanadium - Choose Your Size
Standard Sockets · M380046-C
3/8 Inch Drive Spark Plug Socket 14-21 mm
Individual Socket, Rubber Insert, 6 Point, Chrome Vanadium · Choose Your Size
- Fast US dispatch from our Fort Worth, Texas warehouse
- Genuine Teng Tools — professional-grade, designed in Sweden
- Secure checkout — encrypted payment, trusted providers
- Backed by guarantee — built to last a working lifetime
Why this one
Four plug sizes
Sold individually in four sizes: 14, 16, 18 and 21 mm, so you can choose the size that fits your plugs.
Rubber insert grips the plug
A rubber insert holds the spark plug in place and prevents it dropping while you lift it out or fit it.
6-point, chrome vanadium
A 6 point single hexagon profile for a better grip, made from chrome vanadium with a satin finish.
Retention groove and clip
A groove for the ball detent holds the socket on the 3/8 in drive, and a metal socket clip is supplied for rail storage.
Read the full description
Teng Tools 3/8 inch drive spark plug sockets, sold individually in four sizes: 14, 16, 18 and 21 mm. Choose your size above.
- Chrome vanadium
- Rubber insert holds the spark plug in place to prevent it dropping
- Satin finish for a better grip when handling the socket
- 6 point single hexagon socket for a better grip
- Retention groove for ball detent that secures the connection of the socket to the drive end
- Supplied with a metal socket clip for use with a socket rail
Specifications
| Drive | 3/8 in |
| Profile | 6 point |
| Insert | Rubber, holds the spark plug |
| Material | Chrome vanadium |
Sizes
| Size | Part number | Length |
| 14 mm | M380039-C | 64 mm (2.5 in) |
| 16 mm | M380040-C | 64 mm (2.5 in) |
| 18 mm | M380042-C | 70 mm (2.7 in) |
| 21 mm | M380046-C | 70 mm (2.7 in) |
Get it in a set
This standard sockets also comes in these 4 sets, with the tools that go with it.
Specifications
| Type | Auto Tools |
|---|---|
| Category | Standard Sockets |
| Drive size | 3/8" |
| Part number | M380046-C |
Data sheet
Full details from Teng Tools. Download PDF
Lifetime warranty
Send a photo and your order number. Same-day shipping on replacements.
Ships from Texas
From our Fort Worth warehouse.
Questions?
Call (817) 767-3392.
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.