What are the opening hours?

Monday 7am - 4pm Tuesday 7am - 4pm Wednesday 7am - 4pm Thursday 7am - 4pm Friday 7am - 4pm

HKX, Inc.

Name: HKX, Inc.
Address: 16761 146th Street SE, Suite 115, Monroe, WA, 98272, US
Telephone: +18004935487
Price range: $$

HKX is the leading supplier of standard, custom and conversion aftermarket auxiliary hydraulic kits

Located close to Seattle, Washington, HKX works directly with the top six construction equipment manufacturers, their distributors and dealers, in addition to attachment manufacturers. All kits are designed to facilitate quick installations, with standard kits accommodating next-day delivery service within the US and Canada and airfreight service to Latin America, Asia, the Middle East and South Africa.

08/19/2026

Not every job calls for the same controls.

That's why HKX offers a variety of joystick and control options to match your machine, your attachment, and the way you like to work. Whether you're upgrading an existing excavator or outfitting a new one, we can help you find the right control solution.

From standard and proportional joysticks to foot pedals, foot switches, and OEM monitor integration options—we'll help you build the right setup for the job.

08/12/2026

Built for the woods and ready for demanding work. The HKX, Inc. Forestry Kit gives excavators the added hydraulic capability needed to operate specialized forestry attachments and take on tough applications with confidence.

HKX offers complete hydraulic solutions for John Deere, other tracked excavators, and a wide range of forestry machines—engineered for dependable performance in the most demanding environments.

Ready to make your machine forestry-ready? Contact our application experts today.

08/11/2026

Exciting News from HKX!

HKX, Inc. has joined Multi Parts Solutions (MPS), opening an exciting new chapter with more resources and opportunities for growth and product development.

After more than 30 years, our commitment remains the same. HKX will continue operating from Monroe, Washington, with the same team, expertise and dedication to our customers and dealers.

Read the full press release:https://www.hkx.com/pdfs/press-release-mps-hkx.pdf

08/05/2026

HKX, Inc. hydraulic kits are engineered with the installer in mind. Whether the kit is installed by the HKX team, an equipment dealer, or an independent technician, each system is designed to make the process as clear and efficient as possible.

From prepping and positioning the machine to installing and routing the hydraulic lines, our kits are built for clean fitment, organized hose routing, and secure connections. The result is a professional installation without unnecessary guesswork.

This Komatsu installation shows the process from setup through final fit—helping the installer get the machine equipped and ready to work quick.

Contact HKX to find the right hydraulic solution for your machine and attachment!

07/29/2026

Your excavator is only as capable as the attachments it can run. That's why HKX, Inc. engineers complete hydraulic solutions for many of the industry's leading equipment brands, including Cat Komatsu, John Deere, Hitachi, Case, Link-Belt, Kobelco, Develon, and more!

Whether you're adding a thumb, grapple, shear, mower, grinder, or another specialty attachment, we'll help you equip your machine with a hydraulic system that's built to perform.

07/23/2026

Did you know HKX, Inc. offers complete hydraulic solutions for Cat Next Gen excavators?

Whether you’re adding a thumb, rotating attachment, mower, grinder, shear, or any specialty tool — we build kits specifically designed for Cat Next Gen machines and your application.

HKX installation kits consist of control systems with the right wiring and valving, include options for primary and secondary auxiliary circuits, use OEM Cat valves, gear pumps, and drive groups when needed, and our kits integrate seamlessly with your excavator, avoiding error codes and ensuring OEM systems remain unaffected.

Need something special or a custom solution? We also offer:
- Priority flow systems for mowers and grinders
- Load-hold and hose burst protection for material handling & safety (ISO 8643)
- Conversion systems for 2nd member mounted shears & specialty attachments
- Custom hydraulic solutions built for your exact application

No matter the attachment, HKX delivers complete, reliable hydraulic systems that help you get more out of your Cat Next Gen machine. HKX also supports your older machinery, offering solutions for excavators produced from 1990 to the current models.

Have a project in mind? Call us at 1-855-804-5984 or message us today — we’ll help you find the right solution.

07/16/2026

HKX, Inc. Thumb Lock Kits provide a secure, dependable way to lock your hydraulic thumb when it's not in use. Designed to integrate with your existing auxiliary hydraulics, our kits are bolt-on, require no welding, and are built to perform in tough working conditions.

Don’t disconnect your thumb to run your breaker, contact HKX today to get your thumb lock kit!

07/09/2026

When your service department is slammed, every hour matters.

Whether you run a dealership, rental fleet, or are a General Contractor — keeping machines in the dirt is priority #1.

HKX, Inc. helps you stay ahead in two powerful ways:
- Fast Bolt-On Kits — Designed for quick installation with clear, step-by-step 3D manuals.
- Turn-Key Installation Service — Our experienced techs can handle the install for you when your shop is at capacity.

Less downtime. Less stress. More machines making money.
That’s the HKX difference.

07/02/2026

Happy Independence Day from HKX, Inc.!

In observance of the Fourth of July holiday, HKX will be closed on Friday, July 3rd. We will resume normal business hours on Monday, July 6th.

HKX wishes everyone a safe, happy, and memorable Independence Day weekend as we celebrate America's 250th birthday and the freedoms that make this country great!

06/25/2026

Meet the HKX, Inc. Product Support Specialists.

These are the people answering questions, solving problems, supporting dealers, and helping equipment owners get more from their machines. From quotes and technical support to orders and replacement parts, our Product Support Specialists are here to help every step of the way.

Building relationships has always been just as important as building great hydraulic kits, and we're proud to have a team dedicated to delivering the service and support our customers deserve.

Whether you're looking for the right hydraulic solution, need help with an attachment application, or are ready to place an order, our team is here to help.

Ready to get started? Reach out to Shaun, Dennis, or Carlos directly, call HKX at 855-804-5984, or visit www.hkx.com to request your quote.

Have you worked with one of our HKX Product Support Specialists? We'd love to hear about your experience in the comments!

Address

16761 146th Street SE, Suite 115
Monroe, WA
98272

Opening Hours

Monday	7am - 4pm
Tuesday	7am - 4pm
Wednesday	7am - 4pm
Thursday	7am - 4pm
Friday	7am - 4pm

Telephone

+18004935487

Website

http://www.hkx.com/

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