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Performance Tool W38170 3/8" Drive 9/16" Spark Plug Socket

Manufacturer

Performance Tool

<h3>About Performance Tool</h3><p><strong>Performance Tool</strong>, a flagship brand of Wilmar, LLC, has been equipping professional technicians and dedicated DIYers since 1971. Founded and headquartered in Kent, Washington, the brand has grown into one of North America's most recognized names in automotive tools, shop equipment, and accessories — with a catalog spanning well over 3,500 individual products designed for hands-on use.</p><p>What sets Performance Tool apart is its commitment to building tools that work in the real world. Whether you're a seasoned shop mechanic or a weekend warrior tackling your first oil change, the brand's product lines are engineered with the user in mind — prioritizing ergonomics, durability, and practical functionality. Every product carries Wilmar's <strong>Guarantee of Satisfaction</strong>, backing customers with the confidence that comes from over five decades of manufacturing experience.</p><p>Performance Tool's automotive lineup covers everything from engine service and fuel system tools to drivetrain and transmission service equipment. Their <a href="/521-performance-tool-drain-pan-14675">drain pans</a> are among the brand's most popular offerings — available in a range of capacities and configurations, from compact 7-quart round pans ideal for quick oil changes to wide-format 7.5-gallon pans designed for larger vehicles and transmission fluid service. Features like molded-in pour spouts, chemical-resistant polypropylene construction, and anti-splash lips reflect the thoughtful engineering behind even their most everyday shop tools.</p><p>The brand also takes garage organization and comfort seriously. Performance Tool's shop barstools are a staple in professional garages across North America — offering padded, easy-clean vinyl swivel seats on sturdy steel frames, giving technicians a comfortable perch at the workbench or alongside a vehicle. For floor protection, the brand's <a href="/521-performance-tool-garage-floor-protection-mat-18194">garage floor protection mats</a> and <a href="/20379-utility-mat-performance-tool-521">utility mats</a> provide durable anti-fatigue and surface-protection solutions, from interlocking foam tile systems to heavy-duty rubber grip rolls that stand up to oil, grease, and heavy foot traffic.</p><p>Performance Tool products are sold through thousands of retailers including major auto parts chains, tool suppliers, and online marketplaces — a testament to the trust the brand has built with professionals and hobbyists alike. Whether you're outfitting a new shop, upgrading your garage floor, or just looking for a reliable drain pan that won't let you down mid-service, Performance Tool delivers proven quality at an accessible price point.</p>

Part Number

W38170
09/12/2036 9:26 AM
Sale Price

$4.88

In Stock (10+)

delivery box

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 Performance Tool W38170 is a 3/8-inch drive spark plug socket designed for 9/16-inch spark plugs. This professional-grade socket features a specialized design that protects spark plug porcelain during removal and installation, making it an essential tool for tune-ups and spark plug maintenance.

Key Features:

  • Chrome vanadium alloy steel construction provides exceptional strength and durability for long-lasting performance
  • Recessed edges protect spark plug insulators from damage during use
  • Socket openings engineered to reduce fastener rounding and ensure secure grip
  • Polished nickel chrome plated finish resists corrosion and makes cleaning easy
  • Large stamped markings for quick size identification in your toolbox
  • 3/8-inch drive fits standard ratchets and extensions

This spark plug socket is ideal for automotive, small engine, and lawn equipment applications where 9/16-inch spark plugs are used. The rubber insert grips the plug securely for easy removal from deep recesses.

Like it thanks

Great prices.

Product was as described. I received my order faster than expected. The part worked perfectly!

Very accurate service Thanks .

Easy so far

Great Price and Fast Delivery!

Everything was fine!

So far so good. You&rsquo;re only as good as my last order.

order # 19072 I shopped all over the net and found you guy to be the best price on the gauge that I bought I ordered over the phone and was very pleased with the help I was given. great guys ! Thanks

Easy to find part and place order.

Good Pricing.

quick and easy

great

Easy and affordable

Great pricing, fast shipping, A+++

Excellent Product, Best Price and Super Fast shipping. I look forward to doing business with them again

So far so good

Very quick order process

First off I gotta say that my item arrived much quicker than expected. Funny thing is I ordered a part from another site a few days before I ordered the one from Autoplicity... and I received the Autoplicity item before the other item. In fact the other item hasn't arrived it. Plus the one I ordered from Autoplicty is significantly larger. The item arrived in perfect condition. Pretty impressed. This company is on my recommendations list for sure. They even offer a small reimbursement for writing review. Sheesh they deserve it.

Had a little trouble finding the item needed. A search option would be helpful.

Great prices... easy Web interface

Fast and inexpensive. Thanks.

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