
Gooseneck Pin
Heavy-duty 17-4 stainless 3/4" pin for gooseneck hitches. 5.1" grip, push-button release.
One key. Two PinUltimate products. Zero compromise.
$290.00
One key. Everything locked. The PinUltimate Titanium Hitch Pin and Coupler Lock — keyed alike. Retail $290 (save $20 vs buying separate).
Ships with the Titanium Hitch Pin and the Coupler Lock — both serialized, both keyed-alike to one bidirectional key.
6AL4V titanium hitch pin paired with 17-4 stainless and 6061 aluminum coupler lock. Both built once, both built to last.
Both products carry our Lifetime Warranty + 90-day Knuckle-Saver Guarantee. Buy once, lock everything.
/ Salt proof
ASTM B117 salt spray. 1,000 hours of continuous saltwater mist. PinUltimate came out pristine. Same as day one. The pin is 6AL4V titanium and so are the three positive locking balls, so there is nothing on it to rust.
Covered for life against premature corrosion and mechanism failure.
/ Questions
The Titanium Hitch Pin and the Coupler Lock, keyed alike. One key runs both.
Because it never rusts. The pin is heat-treated 6AL4V titanium. There is nothing on it for salt to eat. The handle is aircraft-grade anodized aluminum, machined on a CNC.
No. We ran it through 1,000 hours of ASTM B117 salt spray, continuous saltwater mist, and it came out the same as day one. The pin is titanium and so are the three positive locking balls that hold it in. Salt has nothing to grab.
No grease. Nothing to grease. Wash it when you wash the truck and dry it off. Every so often, give the lock cylinder a shot of WD-40. That is the whole list.
Titanium costs more than steel. So does machining in Manhattan, Montana instead of importing. You are buying two things once: a hitch pin that never rusts and a coupler lock, both keyed to the same key and both covered for life. If they do not earn their keep in 90 days, send them back for a full refund.
The lock is built into the pin and takes a bidirectional key. No padlock hanging off the back to snap. Nothing is theft-proof. This makes your hitch the hard target.
Class III, IV and V receivers: 2-inch, 2.5-inch and 3-inch. It is a 5/8-inch pin with a 3.6-inch grip.
Lifetime. That covers material defects, failure of the push-button mechanism, and premature corrosion of the titanium or stainless parts. No charge, and we cover the return shipping. On top of that is the 90-day Knuckle-Saver guarantee: if you do not love it, send it back within 90 days for a full refund.
Manhattan, Montana. Every one is designed, machined and assembled by Big Sky Precision. Not some of it. All of it.
Lifetime Warranty · 90-day Knuckle-Saver Guarantee · Made in Montana
From the shop in Manhattan, Montana
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/ From the comments
They looked it up.
YouTube comments on Dirt Monkey’s video, September 2026