My Account
Shopping Cart

McGard 74019 Twin Stern Drive Lock 7/16 Inch Stainless Steel

Manufacturer

McGard

<h3>About McGard: Over 60 Years of Wheel Security Innovation</h3><p>Few brands can claim the kind of singular focus and proven track record that McGard brings to automotive security. Founded in 1964 in Orchard Park, New York, McGard grew out of L.D. McCauley, Inc., a precision machining company whose early work on government contracts for NASA and the military gave it a deep expertise in specialized alloy steels. When company founder Lewis D. McCauley designed and patented a security nut to prevent the theft of automobile rims and tires, a new industry was born — and McGard has been defining it ever since.</p><p>Today, <strong>McGard</strong> is recognized as the nation&apos;s leading manufacturer of mechanical anti-theft devices, supplying wheel locks and security fasteners to automotive OEMs, aftermarket customers, fleets, and marine operators across the globe. The company&apos;s manufacturing remains rooted in Orchard Park, operating from a modern 185,000-square-foot facility where every product is held to exacting internal quality standards.</p><h3>Why McGard Wheel Locks Stand Apart</h3><p>At the core of McGard&apos;s product lineup are its legendary <a href="/441-mcgard-wheel-lock-18100">wheel locks</a>. Unlike conventional lug nuts, each McGard wheel lock is a one-piece design that functions like a regular lug nut during everyday use but requires a unique, computer-generated key tool for installation and removal. McGard uses only restricted-chemistry steel manufactured specifically for its products, and every lock is through-hardened and tempered throughout its entire cross-section — not just surface-treated. This approach delivers a depth of hardness that resists even the most determined removal attempts. All McGard locks and lug nuts meet or exceed OEM proof load standards of 135,000 to 160,000 PSI, and the concentricity of the bearing surface is machined to a standard 30% more precise than OEM requirements.</p><p>That engineering excellence is why McGard has become an Original Equipment wheel lock supplier to more than 30 automobile brand names worldwide, including Ford, General Motors, Chrysler, Toyota, Honda, Nissan, and Subaru. Whether you&apos;re protecting a daily driver or a set of custom aftermarket wheels, McGard&apos;s <a href="/441-mcgard-wheel-lock-set-16214">wheel lock sets</a> offer a straightforward, highly effective security solution.</p><h3>Complete Wheel Hardware Solutions</h3><p>McGard&apos;s expertise extends well beyond individual locks. The brand&apos;s <a href="/441-mcgard-wheel-installation-kit-14954">wheel installation kits</a> provide everything needed to properly mount aftermarket wheels, typically bundling lug nuts, wheel locks, a key, and chrome valve stems into a single convenient package. It&apos;s the kind of thoughtful, all-in-one approach that reflects McGard&apos;s deep understanding of what installers and enthusiasts actually need.</p><p>Complementing the locking hardware is McGard&apos;s extensive range of <a href="/441-mcgard-wheel-lug-nut-7676">wheel lug nuts</a>. Available in a variety of seat styles, thread sizes, and finishes — including chrome-plated and spline-drive designs — McGard lug nuts are engineered to the same exacting standards as the company&apos;s locks. Every nut is precision-machined and designed to meet or exceed OEM specifications for torque performance and structural integrity.</p><h3>A Trusted Name Across Industries</h3><p>While automotive wheel security is McGard&apos;s best-known specialty, the brand also produces a complete line of marine security products — including stern drive locks, propeller locks, and outboard motor locks — as well as security fasteners for government, military, and infrastructure applications. This breadth of expertise speaks to a company that has spent decades solving real-world theft and tamper-resistance challenges across many demanding environments. For drivers, enthusiasts, and fleet managers who refuse to leave wheel and tire security to chance, McGard remains the definitive choice.</p>

Part Number

74019
06/01/2036 8:31 PM
Sale Price

$42.97

1 left at this price

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The McGard 74019 Twin Stern Drive Lock provides essential theft protection for your sterndrive by simply replacing one of the existing mounting nuts. This security device features a stainless steel construction with a free-spinning collar that rotates when attacked by gripping tools, making it virtually impossible for thieves to remove.

Key Features:

  • 7/16 inch thread size for sterndrive mounting applications
  • Stainless steel construction for corrosion resistance in marine environments
  • Free-spinning collar defeats gripping tools and prevents removal
  • No assembly required - ready to install
  • Direct replacement for one factory sterndrive mounting nut

Compatibility:

  • Mercruiser Alpha series
  • Mercruiser Bravo I, II, and III (including X and XR models)
  • Mercruiser Blackhawk
  • OMC Cobra

This twin stern drive lock provides peace of mind when your boat is docked or stored, deterring opportunistic theft with a simple yet effective security solution.

Products specifications

Description

Twin Stern Drive

Finish

Stainless

Excellent service and fast shipping. A seller I would do business with again.

I ordered an AEM intake for my F-150 on Christmas day and received it on the 29th. I would absolutely recommend this site to anyone looking for car parts - they had the lowest price by far and shipped fast. Great job!

Very easy.

Was easy to navigate your site

very good low price, had a slight issue but customer service was amazing,. i would recommend AutoPlicity to anyone because of that, good prices, good customer service,. (meaning trust worthy) why not :). A+++ Service will buy from again!

Great price and quick shipping!

Lowest price on the Internet, good packaging and fast shipping.

Great product and speedy service!

Couldn't be more happy with my product. I ordered from Autoplicity because they were the cheapest price around and I received my order within 5 days. I have installed the cold air intake and couldn't believe all the extra power. I am very pleased with the entire transaction.

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy