Sorry we are no longer selling or servicing cruise control systems.  Some parts are available.

After more than 16 years of serving great customers, Cruise King is closing its doors. We will no longer be selling cruise control systems or kits, nor will we be offering any repairs or rebuilds. A Combination of issues including a rapid decrease in customer demand, along with parts supply problems and explosive cost increases, has made continued operation impossible.  

For those who have purchased kits that are within the two-year warranty period, we will make sure that any problems you may have are addressed.  Send an email to:  We will contact you as soon as possible. (New jobs and work commitments will dictate when we can get back to you.)  

At the bottom of the page you will find trouble shooting information on the various cruise controls we supplied by switch type. Often the only problem is a wiring issue that this will help you trace. (For a specific write up of speed signal problems please read below.)

Need Cruise Control?

For those of you who have needs for a cruise control only, I recommend going to They focus on more automotive style cruise controls but may have something that can work with your application.

2600 Throttle

For those who have a failure of a 2600 throttle controls, you will have to completely redo your system to either an air throttle or a cable throttle.  A google search for air throttles turns up  If you scroll down the page you come to a section called “air throttle conversion kit”.  Click on that and it pictures a couple of air pedals styles and further down a “general purpose throttle control” which will work in the engine compartment to operate the throttle.  
Another throttle option would be a cable from front to back. I could not find a bus or RV version but at under marine parts they sell several lengths of throttle cable with fittings. This would be all you should need to hook up to the engine. For the accelerator pedal, a google search turned up an ebay item that may work called “billet arm floor mount gas pedal”.  This has an arm that goes through the floor that actuates back and forth as you move the pedal with a couple of holes for cable hook up. I am sure there are various other such items for mechanical actuation. Please note, the cable will have to move about 2.5 inches to move the lever on the engine from idle to full throttle (using the top most hole) so you may have to do some engineering if the lever arm does not move far enough. As always be sure that the cable moves freely and is not interfered with nor runs near anything hot.

Once you have throttle actuation, again you may want to go to for a cruise add on. Finally, you will need an Allison throttle position sensor for mechanical engines.  Again a googlesearch revealed a number of these on ebay. Here is a picture of one:
cruise control sensor
The cable end hooks up to the throttle and as you step on the gas it is pulled out.  There is a receptacle which accepts the Allison transmission tps harness plug that exists on your motor home.  The Allison TPS sends a (roughly) 1 – 4 volt (idle to full throttle) signal to the transmission that in conjunction with rpm helps with shifting.  Air or cable throttle will get the vehicle drivable and moving but, you need the TPS to get the Allison transmission shifting to Allison specs.
Once you have throttle actuation, again you may want to go to for a cruise add on. Finally, you will need an Allison throttle position sensor for mechanical engines.  Again a googlesearch revealed a number of these on ebay. Here is a picture of one:

Speed Signal

SPEED SIGNAL problem Trucks.  If the vehicle is hunting or speeding up and shutting off, you could have the cruise responding to an erratic signal that it is “seeing”.
1. Sometimes the speedometer starts drawing too much signal because the sensor is getting weak.  Try unplugging the speedometer and running the cruise.  If the cruise now runs smoothly it is best to replace the sensor with a dual sensor (Has 2 pair of wires coming out.) if hooking  back up on one pair does not correct the problem, then disconnect the cruise from the speedometer wiring and run those wires directly to the other set of sensor wires.
2. Note:  sometimes a loose tone wheel in the transmission will slip and cause cruise surging.  This often will be evident on the cruise but not the speedometer as the speedometer averages out pulse over a longer time, so it is not jumpy.  The cruise is designed to be more sensitive.  To check for looseness, take out the sensor and feel in the hole for a tooth.   (sometimes they are so loose you can move them with your finger) Put a screwdriver in the hole against the tooth and pry lightly.  The wheel should not slip along the shaft.  If it does, drop the driveshaft and tighten the nut on the back of the yoke to press the tone ring in place.  
3. Bad or wiring either shorting or going open can also cause surging.

The cruise has a high idle feature, if by activating set and then holding resume the cruise seems to come on, but slows down going up hills and speeds up going down because the pedal is stuck in one place, then the cruise does not know you are moving and is just high idling you down the road.  The same fixes as above apply.

LED Bulbs

LEDs are not compatible with the King cruise.  We are looking for a ground through the filament of a lightbulb to make our system work, so LEDs cause crazy problems, cruise works for months but quits, shuts off when turn headlights on, does not work in rain or only works in rain, all kinds of problems.  So either put the old style bulbs back in or add a wire to the ground side of the brake light switch, insert an old style bulb, then go from bulb to ground.  That will make a new brake light circuit that the cruise will “like.”

Semi Trucks


Bus Conversions

Service Vehicles

"...the cruise control of choice
               for HEAVY DUTY applications"

Are you looking for a new cruise control servo for your mechanical diesel engine?  Would you like to replace that ineffective vacuum cruise with a full electronic-mechanical cruise control? Do you have RV Cruise Control problems? Is your current RV Cruise Control Not working? Do you need a reliable Truck Cruise control? Our cruise control kits are the favorite add on cruise controls for truckers and RVers with older mechanical diesel engines. The King Controls Cruise King is a fully universal cruise control system that works with older Cat, Cummins, Detroit Diesel and other mechanical engines. The King Cruise is a heavy duty after market cruise control that is designed for working in the roughest of conditions. No other after market cruise control is made to the demanding specs of the trucking market.  Although not specifically made for gas engines, if you have an application where you need a tough cruise to last, the Cruise King can be modified to work with any mechanical engine gas or diesel.

 Find out why EVERY MAJOR MOTORHOME and TRUCK MANUFACTURER and their dealers chose the CRUISE KING over all other controls. The King Controls Cruise was chosen by GILLIG, ROADMASTER, FREIGHTLINER, SPARTAN OSHKOSH, DYNOMAX and others as the cruise of choice over all other manufactures. KENWORTH, PETERBILT AND FREIGHTLINNER trucks chose the King Controls Cruise for its direct ship program after extensive testing on their test tracks. 
Our cruise has the best warranty of any cruise in the world, with a TWO YEAR PARTS WARRANTY.

Cruise King LLC can offer to owners of mechanical diesel engines, the cruise needed to fit your needs. We replace cruise controls that are no longer being manufactured, such as Bendix, Econocruise, Dana, and others. Our cruise control can be used on Semi-trucks, Recreational Vehicles and bus conversions. Our cruise control is relatively easy to install. It does not require air pumps or vacuum. All electronics and mechanical functions are located in one box called an actuator. This eliminates the need to install separate electronic and mechanical parts and eliminates a number of wires.

Why install a cruise? 

A cruise control will do many things. Foremost, it EASES FATIGUE on the driver. By constantly monitoring road speed and making adjustments to the throttle, a cruise will hold a set point within a mile an hour, thus allowing the driver to take his attention off of maintaining speed. A cruise allows a driver to change positions while also taking his attention off his gauges and onto the road and scenery. A cruise control will PAY FOR ITSELF IN FUEL SAVINGS. Cruise King guarantees all drivers of high horsepower diesel engines a fuel savings of .2 MPG. A trucker can pay for his cruise control in less than one year. A King Cruise makes your vehicle more fuel efficient.

With all these benefits what is to stop you from investing in a cruise control today?

Choose your cruise 

Cruise controls for any mechanical diesel engine. Kits have been standardized to $595.00 for any standard mechanical truck, RV or bus cruise control. (Specialty applications or electronic engines vary in pricing) We have full kits to fit diesel motor homes, with extra wiring if it is a diesel pusher. We also have kits to work with both class 8 and  business class trucks. We can also supply just the actuators to vehicles that already have King Cruise wiring installed. Call 507-334-0250 for specialty price quotes today, Or e-mail us at for pricing and answers to your application questions. CALL US ANY TIME WITH QUESTIONS ABOUT APPLICATION, TO ORDER PARTS OR FOR ASSISTANCE ON TROUBLESHOOTING OR INSTALLATION. WE WOULD LOVE TO ASSIST YOU. 

King Cruise Controls were origially designed for the heavy duty trucking industry. It is not uncommon to hear from truckers who have had over one million trouble-free miles with a King Cruise. One feature favored by truckers is the OPTIONAL dial control panel attached to te stick shift. This allows a driver to speed up and slow down with a touch of his fingers. Standard truck cruise includes toggle switches. Standard ON/OFF and SET/RESUME. Set doubles as coast or decelerate, resume is also used to accelerate.

RV cruise

Since 1989 King Controls has been supplying cruise controls to the Motor Home industry.  King Cruises have been used on Oshkosh, Freightliner, Dynomax, Gillig, Spartan, and Roadmaster Chassis.  We have also been used as replacement cruises for those no longer in production such as Bendix, Econo-cruise, Dana and others.   If you already have a King Cruise on your motorhome, contact us for a specific part  number, as some of our kits were made with specs designated by the manufacturer.

Bus conversions

The cruise of choice for many doing their own conversions is the King Cruise.  Everything one would need is supplied or available from Cruise King.  We have switches, signal generators, and all wiring harnesses.

Construction equipment

Cruise King has low speed cruise controls for paint stripers, herbicide sprayers and other construction applications.  Cruise systems for mechanical engines.  Call for information

Service Vehicles

Cruise King had controls to limit speeds on vehicles.  End user can set two limits one low one high.  Typical applications are airport service vehicles.  Deice equipment can be set at a 4 - 6 mph low speed limit.  Can also set a top speed of 15mph to 60 mph.  Products  for mechanical engines.  Call for part numbers and pricing.

Cruise Diagnostics

Throttle Diagnostics

Contact Us

Get in Touch!

Email Address


22250 Glynview Trail  
Faribault  MN  55021

Phone Number

Ph:(507) 334-0250
Fax: (507)334-0206

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