TKP-10 King Pin Lock

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Learn more about our keying options here.


Use Our King Pin Lock To Secure Untethered Trailers

Protect expensive cargo stored in a dropped trailer from a would-be thief tractor. Our king pin lock is long lasting and dependable.

Lock Exterior

The cast steel King Pin Lock is nearly impenetrable.


  • Conical shape

  • Convenient handle included

  • Made of cast steel

Lock Interior

Like all WAR-LOK products, the King Pin Lock comes with a nine cylinder disk locking mechanism. This makes it nearly impossibly for a thief to pick your lock.

Keying Options

Key your locks differently, alike, or alike to a master key. Furthermore, newly purchased locks can be keyed alike to an existing lock. WAR-LOK Cares About Your Security: WAR-LOK will verify ownership before any key is copied. Our WAR-LOK Assembly Team cuts every key in Dallas, Texas, USA.  

(Video) Securing Your Lock

This video shows how to apply our lock to a king pin. Additionally, it demonstrates how a king pin lock blocks the fifth wheel of a thief tractor. Click here to view.


Additional Information

WEIGHT: 5.044 lbs

DIMENSIONS: 12 × 9 × 2.875 in

KEY OPTIONS: Keyed Alike, Keyed Differently, Master Key, Specify Keying Preferences at Checkout

MATERIAL: Cast Steel

MAINTENANCE: One spray of Slick 50 One Lube every 90 days, or when needed. WD40 is NOT recommended and will have an adverse affect on your lock.

OPTIONAL USE: Lock-Out Tag-Out and Maintenance, Reusable

COLOR: Silver

Installation and Removal

The WAR-LOK King Pin Lock is designed to fit all standard trailers.

To install the lock:
1. Slide the lock fully up over the king pin.
2. Push the lock cylinder inward until it clicks into place.
Helpful Hint: Slip a thin plastic grocery bag over the king pin prior to installing the lock to reduce the amount of grease adhering to the lock.
To remove the lock:
1. Insert the key into the lock cylinder.
2. Hold the lock firmly and turn the key clockwise approximately 3/4 turn. Pull the lock cylinder out to release the lock

(Video) Securing Your Lock

Return Policy

You may return your purchased products within 30 days from the ship date for a full refund or exchange. WAR-LOK will cover additional shipping costs to correct any mistakes it has made in fulfilling an order.

In the event you are unsatisfied with your purchase, returns may be subject to a restocking fee up to 25% of the purchase price.


The most effective deterrent available, the Trailer King Pin Lock is designed to protect dropped/untethered trailers from the fifth-wheel plate of a would-be thief tractor. Secure your king pin with this conical king pin lock.


Customer Reviews

Based on 18 reviews
Big hunk of metal

With a pin lock


Great company to do business with. Everything I’ve ordered from War Lok is quality.


Best king pin lock I've owned!


This king pin lock is without peer. It is extremely well made, easy to apply, and may be ordered keyed alike to other War-Lok locks whether at the same time or later. Very sturdy, massive lock. Dave Reid


We bought 2 of these back in 2004 (keyed alike) and they have never once let us down. Our plant expanded so we bought 2 more (keyed the same as our originals) and we're still going strong. I can't tell you how many times these have been racked over the years by drivers who don't remember to take the locks off and they still hold up. A few dings and dents, but otherwise still functional. Worth every dime to protect your trailers and cargo.