Best Metric Spark Plug Sockets of 2025

Harry Stack Avatar
Harry Stack
Last Updated: Jan 8, 2025

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

Metric spark plug sockets are essential tools for any mechanic or DIY enthusiast who wants to maintain their vehicle's engine. These sockets are designed to fit metric-sized spark plugs, which are commonly found in modern cars and motorcycles. They come in a range of sizes to accommodate different plug diameters and depths. Metric spark plug sockets are made from durable materials like chrome vanadium steel, which ensures they can withstand the high torque required to remove and install spark plugs. With their precision fit and sturdy construction, these sockets make changing spark plugs a breeze, saving time and money in the long run.

At a Glance: Our Top Picks

Powerbuilt 3/8-Inch Drive Spark Plug Socket Set Cover #TOP 1
Powerbuilt 3/8-Inch Drive Spark Plug Socket Set
ftb score rating icon 9.9
MIXPOWER 5-Piece Spark Plug Socket Set Cover #TOP 2
MIXPOWER 5-Piece Spark Plug Socket Set
ftb score rating icon 9.8
CRAFTSMAN Socket Set for Spark Plugs Cover #TOP 3
CRAFTSMAN Socket Set for Spark Plugs
ftb score rating icon 9.6

Top 10 Metric Spark Plug Sockets

#TOP 1

Powerbuilt 3/8-Inch Drive Spark Plug Socket Set

640855
Grey
Spark Plug
Powerbuilt 3/8-Inch Drive Spark Plug Socket Set Cover
Powerbuilt 3/8-Inch Drive Spark Plug Socket Set, 6 Point, Deep Thin Wall, 5 Piece Metric and SAE - 640855, Grey

The Powerbuilt 3/8-Inch Drive Spark Plug Socket Set includes 5 sockets in both metric and SAE sizes. The 6 point deep well thin wall mirror polished chrome vanadium socket has dual grease rings, and the rubber retaining ring holds the plug securely. It meets or exceeds ANSI standards and comes with a lifetime warranty.

What We Like
Includes both metric and SAE sizes
6 point deep well thin wall socket with dual grease rings
Rubber retaining ring holds plug securely
Meets or exceeds ANSI standards
Lifetime warranty
#TOP 2

MIXPOWER 5-Piece Spark Plug Socket Set

MT011
Non magnetic
MIXPOWER 5-Piece Spark Plug Socket Set Cover
MIXPOWER 3/8-Inch Drive Spark Plug Socket Set, SAE & Metric, CR-V Steel Mirror finish, 6-Point, 5/8-Inch, 3/4-Inch, 13/16-Inch, 14mm, 18mm, 5-Piece Set

The MIXPOWER 3/8-Inch Drive Spark Plug Socket Set includes 5 pieces of premium CR-V steel sockets with a mirror chrome finish. The set contains 5/8-Inch, 3/4-Inch, 13/16-Inch, 14mm, and 18mm sockets. The tapered 6-point opening socket grips the flat sides of fastener head, not corners, to prevent round-off. The rubber retaining ring holds the plug securely, and the high visibility markings ensure you can find them easily. All MIXPOWER Tools meet or exceed ANSI performance standards, and it comes with a 1-year quality guarantee.

What We Like
Premium CR-V steel construction
High-visibility markings
Tapered 6-point opening socket prevents round-off
#TOP 3

CRAFTSMAN Socket Set for Spark Plugs

CMMT34504
3/8 in
CRAFTSMAN Socket Set for Spark Plugs Cover
CRAFTSMAN 3/8 in. Drive Metric and SAE 6 Point Standard Spark Plug Socket Set, 4 Piece Set (CMMT34504)

The CRAFTSMAN 3/8 in. Drive Metric and SAE 6 Point Standard Spark Plug Socket Set, 4 Piece Set (CMMT34504) is a versatile addition to your toolbox. It includes easy-to-read markings and compatible sizes for numerous lawn mowers, leaf blowers, weed trimmers, motorcycles, cars and pickup trucks. The markings help with stress-free use in dimly lit and dirty garages and work sites.

What We Like
Versatile sizes
Easy-to-read markings
Compatible with various vehicles and equipment
#TOP 4

DURATECH 3/8-inch Drive Spark Plug Socket Set

DT001017
One Size
DURATECH 3/8-inch Drive Spark Plug Socket Set Cover
DURATECH 3/8-inch Drive Spark Plug Socket Set, SAE & Metric, 5/8-inch, 3/4-inch, 13/16-inch, 14mm, 18mm, Heat Treated CR-V Steel Sockets with Rubber Retaining Rings, 5-Piece Set

The DURATECH 3/8-inch Drive Spark Plug Socket Set includes 5 pieces of sockets that are made of durable heat-treated Chrome Vanadium Steel with a corrosion-resistant mirror chrome finish. The 6-point socket design prevents round-off, while the 12-point design of the 14mm socket enhances gripping power and fit. The precision rubber retaining ring ensures easy installation and removal. The set comes in a durable blow-molded carrying case for easy transportation and storage. This socket set is perfect for most applications and offers reliable durability and precision.

What We Like
Durable heat-treated Chrome Vanadium Steel
Precision rubber retaining ring ensures easy installation and removal
Durable blow-molded carrying case for easy transportation and storage
#TOP 5

SK Tools USA Spark Plug Socket Set 4424

SK
SKT4424
One Size
SK Tools USA Spark Plug Socket Set 4424 Cover
SK Tools USA 3/8" Drive, 12 Piece, Standard & Deep, Straight & Flex, SAE & Metric, Chrome Spark Plug Socket Set | 4424

The SK Spark Plug Socket Set is designed to make your maintenance tasks easier and more efficient. Featuring a 3/4" drive, it ensures a snug fit for your spark plugs, reducing the risk of stripping. The SuperKrome finish not only enhances durability but also protects against rust and corrosion, giving you peace of mind during use. Its SureGrip hex design allows you to apply force to the side of the fastener, which helps prevent rounding. Additionally, the external hex bolster provides extra torque when using a wrench, making tough jobs more manageable for you.

What We Like
Durable SuperKrome finish
Effective SureGrip hex design
Extra torque with hex bolster
Made in the USA

LLNDEI 1/2-Inch Drive Ratchet Impact Socket Wrench Set

LLN23049
Black
49PCS
LLNDEI 1/2-Inch Drive Ratchet Impact Socket Wrench Set Cover
LLNDEI 1/2-Inch Drive Ratchet Impact Socket Wrench Set,Deep Sockets(8-24mm),Spark Plug Socket(16,21mm),49PCS, CR-V, Metric,Combination Wrenches (8-17mm),72T Ratchet Handle for Mechanics

The LLNDEI Impact Socket Set offers a comprehensive selection of tools for your projects. The set includes a 72T ratchet handle, deep sockets ranging from 8-24mm, combination wrenches, and spark plug sockets. The durable CR-V construction ensures longevity and can handle high torque. The 6-point deep well socket design provides a secure grip on fasteners, preventing wear. The organized and portable case keeps your tools safe and accessible. With exceptional compatibility, this set seamlessly integrates with various power tools for versatile use.

What We Like
Durable CR-V Construction
Secure 6-Point Socket Design
Organized & Portable Case
#TOP 7

EMENTOL 5PCS 3/8" Drive Spark Plug Socket Set

ET509
5-Piece Set
EMENTOL 5PCS 3/8" Drive Spark Plug Socket Set Cover
EMENTOL 5PCS 3/8" Drive Spark Plug Socket Set, CR-V, SAE and Metric, 3/8" Drive 6-Point Socket Set

The EMENTOL 5PCS 3/8" Drive Spark Plug Socket Set is made of high-quality Chrome-Vanadium Steel with a mirror chrome finish, available in SAE and Metric sizes. The set includes 14mm,18mm; 5/8",3/4",13/16” sockets. The 6-point design provides a tight grip and prevents rounding off corners, while the interior rubber insert secures and protects the spark plug during operation. The laser-etched size markings make it easy to identify the size. The set comes with a sturdy and convenient storage case, keeping each piece in the proper position. It meets or exceeds ANSI performance standards.

What We Like
High-quality Chrome-Vanadium Steel construction with mirror chrome finish.
6-point design keeps a tight grip and prevents rounding off corners.
Interior rubber insert secures and protects the spark plug during operation.
#TOP 8

Renekton Spark Plug Socket Set

d1cad418-295d-4d04-bdab-00a572264624
Blue
One Size
Renekton Spark Plug Socket Set Cover
Renekton 3/8 Inch Drive Spark Plug Socket Set, Rubber Retaining Inserts, SAE And Metric, 5/8-inch, 3/4-inch, 13/16-inch, 14mm, 18mm, With 90-Tooth Ratchet Wrench And Extension Bars, 7 Pieces

The Renekton 3/8 Inch Drive Spark Plug Socket Set is made of hardened and heat-treated Chrome Vanadium alloy steel, designed for spark plug removal and installation. Its polished, Chrome plated mirror finish resists corrosion and is easy to clean. The set includes a 90-tooth ratchet wrench and extension bars, and the 6-point socket design prevents round-off while the rubber retaining ring ensures the plug stays on the socket. The set covers most applications, including 5/8-inch, 3/4-inch, 13/16-inch, 14mm, and 18mm sizes.

What We Like
Durable and heat-treated alloy steel construction for longevity and durability
Chrome plated mirror finish for easy cleaning and corrosion resistance
6-point socket design prevents round-off and rubber retaining ring ensures plug stays on socket
#TOP 9

LLNEDL 3/8" Drive Impact Socket Set 95Pcs

LLNEDL
Red Case
LLNEDL 3/8" Drive Impact Socket Set 95Pcs Cover
LLNEDL 3/8" Drive Impact Socket Set 95Pcs, Spark Plug Socket (5/8", 13/16"), 6 Point Metric & SAE from 5/16"- 3/4", 8-22mm, CR-V Deep & Shallow Kit with Quick Release Ratchet (72-Tooth) for Home & DIY

The LLNEDL 3/8" Drive Impact Socket Set 95Pcs is a heavy-duty socket set made of chrome vanadium Cr-V steel that is resistant to wear, oxidation, and corrosion. It includes a variety of sizes with 6-point design and high-security features to prevent accidents. The set is also easy to identify with professional markings and comes with a lifetime quality guarantee.

What We Like
Durable material made of chrome vanadium Cr-V steel
Includes a variety of sizes with 6-point design for a firm grip and to prevent round-off
High-security features to prevent accidents
#TOP 10

LLNDEI 186-Piece Socket Set

XH-186
One Size
LLNDEI 186-Piece Socket Set Cover
LLNDEI 1/4 & 3/8 Inch Drive Impact Socket Set, 186 Pieces Metric and Standard Full Sockets, CR-V Deep & Shallow Sockets Tool Set with Ratchet Wrench Handle, Spark Plug Socket, Bit Set for Mechanic

The LLNDEI Socket Set is a comprehensive tool kit designed to meet various automotive needs. It features a wide array of 186 pieces, including metric and standard sockets, which are essential for tackling different fasteners with ease. The durable CR-V material used in these sockets ensures they can withstand high torque and resist rust. Additionally, the six-point design minimizes friction, making it easier to engage with fasteners and prolonging their lifespan. With an upgraded storage box, you can keep your tools organized and prevent scattering, enhancing your overall efficiency while you work.

What We Like
Comprehensive set of tools
Durable rust-resistant material
Minimized friction design
Upgraded secure storage
Buying Guide Image
Editor's Notes

During our metric spark plug socket research, we found 24 metric spark plug socket products and shortlisted 10 quality products. We collected and analyzed 22,589 customer reviews through our big data system to write the metric spark plug sockets list. We found that most customers choose metric spark plug sockets with an average price of $13.56.

The metric spark plug sockets are available for purchase. We have researched hundreds of brands and picked the top brands of metric spark plug sockets, including Powerbuilt, MIXPOWER, CRAFTSMAN, DURATECH, SK. The seller of top 1 product has received honest feedback from 115 consumers with an average rating of 4.8.

Written by
Harry Stack Avatar

Harry Stack owns a small hardware store, his career landed him a depth of knowledge in categories such as tools, equipment, machinery and hardware. In his spare time, he usually repairs furniture, safes and appliances, and he knows how to make simple repairs to plumbing or electrical fixtures. His hobbies also include woodworking and fishing.