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The 8 Best automotive engine speed governors of 2024

Are you trying to find automotive engine speed governors among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling automotive engine speed governors on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 17 hours of research and did 67 automotive engine speed governors tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best automotive engine speed governors you can buy today

No. 1
Knowtek EG3000 Engine Speed Control Unit Controller Governor for Gasoline Diesel Generator
  • The EG3000 is an electronic speed controller designed for precise speed control of diesel, and gasoline / petrol engines
  • The EG3000 installed together with a magnetic pickup / MPU and an actuator from the enginer governor assembly.
  • The EG3000 has adjustable idle speed and also adjustable fuel limilting function for controlling engine smoke and vibration during start
  • The EG3000 Controller receives the engine speed signal from a magnetic pickup
  • The EG3000 receives its power from the engine batteries or from an AC to DC power supply rated at 12 Vdc or 24 Vdc (+-20%) to match the actuator voltage
No. 2
ESD5111 Electronic Engine Speed Controller Governor Generator Genset
  • 12 or 24V DC Battery Systems(Transient and Reverse Voltage Protected)
  • The speed controller is a closed-loop control of the entire electronic design, it's instantaneous load changes quickly and with precision control in response to engine speed when connected to the match and the implementation of e-speed magnetic sensor signals can be Control of a wide range of engines
  • It is designed to be highly reliable, the engine can withstand the surrounding area within the range of electromagnetic interference
  • In the design, installation and a simple pre-adjustment, including the transfer rate and adjustable idle for assistance or for multiple special-purpose machine input, as well as to prevent reverse battery voltage, the transient voltage pulse, the actuator short-circuit fault And the loss of power or speed sensor signal of the security protection
  • Package Include:1x Engine Speed Governor Controller ESD5111
No. 3
HVACSTAR Electronic Engine Speed Controller Governor ESD5500E Generator Genset
  • ESD5500E
  • Electronic Engine Speed Controller Governor ESD5500E Generator Genset
No. 4
Engine Speed Governor Spring For 94-98 Ram 2500/3500 W/P7100 Injection Pump
  • Pacbrake Spring kits for those who tow heavy loads or need more responsive power.
  • Pacbrake's governor spring kits are recommended for vehicles that have 5 speed standard transmissions.
  • They are perfect for those who tow heavy loads and want more responsive power.
  • PLEASE NOTE: THIS KIT IS NOT LEGAL FOR USE IN CALIFORNIA.
  • APPLICATION: compatible with Dodge Ram 2500/3500 1994-1998
No. 5
EEG6500 |100% GAC Original | Digital Speed Governor | Designed to Control Engine Speed with Fast and Precise Response to Transient Load Changes | Simplified LCD User Interface
  • Save Energy Cost by regulating the engine speed according to load requirements. GAC components are the best way of governing a generator where strict control of engine speed is desired irrespective of engine load
  • EEG6500 (Multi-VDC / Built-In Display / Terminal Strip / Gaseous or Diesel / Works with all GAC Actuators except 2001) Improved & Simplified LCD User Interface - Fast Setup with 5 push buttons - Lockable Display to Prevent Unauthorized Access - Selectable Isochronous or Droop Governing
  • Built-In Fault Readout - Adjustable Starting Fuel Strategy (Black Smoke Reduction) - Speed Ramping - Includes Standard GAC AUX Input for Synchronizing and Load Sharing - J1939 Engine Data
  • GAC high performance speed control system are application based and consist of four major components: flywheel, magnetic speed pickup, speed controller and an actuator
  • Application in: MILlitary grade equipment, Rail, Marine, Industrial, Heavy Machinery, Gaseous Engines, Power Generation, Oil & Gas and much more... GAC is ISO 9001 certified | We carry the complete line of Governors America Corp products, email Thunder Parts your requirements!
No. 6
Engine Speed Regulator Electronic Control Motor Governor Generator Speed Controller Module Parts ESD5500e DC 12V/24V for Generator Set
  • EASY TO INSTALL: The four corners of the generator governor have openings, which are fixed with screws for easy installation and removal, offer you better using experience
  • FUNCTION: The electronic speed governor is mainly used for generators to solve the problem of black smoke caused by rapid refueling during the start‑up process, can protect equipment from damage
  • APPLICATION: Adjustable motor speed regulator board is widely used in new generators to control the speed of generator sets above 200kW, can meet your use and replacement needs
  • FUNCTION: The electronic speed governor is mainly used for generators to solve the problem of black smoke caused by rapid refueling during the start‑up process, can protect equipment from damage
  • GOOD PERFORMANCE: Genset parts are made of high-quality materials, good overall performance, fast and accurate response, high sensitivity, convenient and practical
No. 7
S6700E Speed Control Unit Engine Governor Controller for Diesel Generator Genset
  • The S6700E Speed control Unit is an All-Electronic Device Designed to control engine speed with fast and precise response to transient load changes.
  • The basic characteristics of this unit S6700E is to reach rated speed and power as well as reducing smoke exhaust through adjustment of firing fuel and speed-rate.
  • The S6700E speed control Unit provides a series of protection once the power supply is reversely connected. Transient over voltage or actuator fault happens, or Speed input breaks.
  • S6700E Speed Control Unit Engine Governor Controller for Diesel Generator Genset
No. 8
Knowtek ESD5221 Speed Control Unit Engine Governor Controller for Diesel Generator
  • The ESD5221 speed control unit is an all electronic device designed to control engine speed with fast and precise response to transient load changed.
  • ESD5221 is closed loop control, when connected to a proportional electric actuator and supplied with a magnetic speed sensor signal, will control a wide variety of engines in an isochronous or droop mode.
  • ESD5221 is designed for high reality and built ruggedly to withstand the engine environment.
  • Simplicity of installation and adjustment was foremost in the design. Non interacting performance controls allow near optimum response to be easily obtained.
  • ESD5221 Speed Control Unit Engine Governor Controller for Diesel Generator Alternator Genset
No. 9
HRui 2X Throttle Return Spring Kit Assortment Governor Link Rod Speed Control Spring for Honda GX140 GX160 GX200 5.5/6.5hp 168F Engine
  • For Honda GX140 GX160 GX200 5.5/6.5hp engine, for Chinese 168F gasoline generator engine.
  • Equipped with 168F gasoline engine.
  • You will get:2X governor rod ,2X speed control spring ,2X throttle return spring .
  • 【Service】Worry-free 3-month warranty, promptly and friendly customer service.
No. 10
Tgoon 2 Sets Throttle Return Springs, Speed Control Springs and Governor Rods, for GX140 GX160 GX200 5.5hp 6.5hp Engines
3 Consomer Reviews
Tgoon 2 Sets Throttle Return Springs, Speed Control Springs and Governor Rods, for GX140 GX160 GX200 5.5hp 6.5hp Engines
  • DURABLE AND STABLE MATERIAL: Rod and springs are made of high-quality metal material, sturdiness and durability, high stability and long using life.
  • FINE WORKMANSHIP: Package is included 2pcs governor rods, 2pcs speed control springs and 2pcs throttle return springs. Having properties of excellent quality and fine workmanship, very easy to use and install.
  • ATTENTION: They are replacement parts for Honda, not the original parts. But its quality is not inferior to the original equipment. Spend less money and do more things.
  • SUITABLE FOR: The throttle springs perfectly replacement for Honda GX140 GX160 GX200 5.5hp 6.5hp Engines and Chinese generators equipped with 168F gasoline engine, too.
  • AFTER-SALES SERVICE: We do our best to provide the best service. If you have any questions, please feel free to contact us or contact customer service. We cherish every suggestion, just as we cherish every customer who trusts us.
No. 11
Knowtek EFC3044196 Speed Control Unit Governor EFC 3044196 Engine Controller for KTA19 QSK19 K19 Generator
  • Ship from
  • 3044196 is an engine speed controller designed by all electronic devices for actuator,
  • 3044196 speed controller has fast and precise response to transient load changes,It has a wide speed control range.
  • For these controllers, separate circuits allow adjustments of proportional, integral and derivative values.
  • Actuator Compatibility: EFC3408324, DYNA2000, DYNA2500...
No. 12
FridayParts Speed Controller Control Governor 3098693 Compatible for Cummins Engine KTA19
  • New aftermarket parts
  • Speed Controller Control Governor 3098693 Compatible for Cummins Engine KTA19
  • Compatible for Cummins Engine KTA19GC, KTA19 G CMEICS K123, KTA19GC CM558, QSK19 CM500, QSK19 CM850 MCRS, K19, QSK19G, QSK19 CM2150 MCRS, QSK19 CM2350 K105
No. 13
Throttle Linkage, Engine Spring Return, 2 Sets Throttle Return Spring, Speed Control Spring, Governor Link Rod Generator Governor Spring Fit for GX140 GX160 GX200
  • [Easy to use and install]: Easy to use and install, the throttle spring governor has high stability and long using life
  • [High-quality metal material]: Made of high-quality metal material, the throttle spring assortment is sturdiness and durability
  • [Package]: With 2 throttle return springs, 2 speed control springs, 2 governor rods, the generator governor spring is complete kit
  • [Replacement parts]: This throttle return spring are good replacement parts for GX140 GX160 GX200, not the original parts
  • [Application]: The governor gear assembly is perfectly suitable for GX140 GX160 GX200 5.5hp 6.5hp engines and Chinese generators equipped with 168F gasoline engine
No. 14
Thunder Parts ESD5111 |100% GAC Original | Analog Speed Control | Designed to Control Engine Speed with Fast and Precise Response to Transient Load Changes | Reliable and Easy to Operate
  • This is the best way of governing a generator where strict control of engine speed is desired irrespective of engine load. As the load is added and removed, the governor maintains a constant engine speed, stabilizing the load.
  • Save Energy Cost by regulating your engine speed according to the load requirements. Control a wide variety of engines in an isochronous or droop mode. It is designed for high reliability and built ruggedly to withstand the engine environment. Accessory Inputs for Load Sharing Variable Speed Operation available.
  • Speed Control Units are application based and can be used with any of GAC's actuators. Types of Actuators: Throttle Body, Pump Mounted, Engine Mounted and/or Universal.
  • An electronic speed control system consists of four major components: flywheel, magnetic speed pickup, speed controller and an actuator .The speed controller compares the desired speed to the speed measured from the magnetic speed pickup.
  • Application in: MILlitary grade equipment, Rail, Marine, Industrial, Heavy Machinery, Gaseous Engines, Power Generation, Oil & Gas and much more... GAC is ISO 9001 certified | We carry the complete line of Governors America Corp products, email Thunder Parts your requirements!
No. 15
Dasunny DC 12V to DC 48V Converter Voltage Regulator 2A Step-up Power Supply Circuit Module Adapter for Auto Car Truck Vehicle Boat Solar System Electric Motor, WG-12S4802
  • ⭐Wiring: the input end is red (+) and black (-); the output end is yellow (+) and black (-).
  • ⭐Wiring: the input end is red (+) and black (-); the output end is yellow (+) and black (-).
  • ⭐Wiring: the input end is red (+) and black (-); the output end is yellow (+) and black (-).
  • ⭐Overall Dimension: 2.5 x 2.3 x 0.83 Inches / 6.4 x 5.8 x 2.1 cm (L*W*H), Voltage: 12V input & 48V output, Current: 2A.
  • ⭐Main Material: Made from aluminum shell and silicone sealed design, waterproof, anti-shock, anti-humidity and dust-proof.
  • ⭐With high heat conduction organic silica gel filling and sealing technology, and compatible with multiple automatic protection function such as Overcurrent Protection/Overheated Protection/Short Circuit Protection/High Voltage Protection.
  • ⭐Guarantee: We attach great importance to the interests of customers, we are willing to provide refund service for orders with quality problems, please rest assured to buy.
SaleNo. 16
ATSG 46RE 47RE 48RE Transmission Repair Manual (48RE Transmission - 48RE Governor Pressure Solenoid - 48RE Valve Body - Best Repair Book Available!)
  • Step-by-Step Solution to Repair, Overhaul or Rebuild of 46RE 47RE 48RE Transmission
  • High Quality Charts Available for 46RE 47RE 48RE
  • Valve Body Identification, Electrical Diagrams, Wiring Harness Locations
  • Assembly, Dis-assembly, Diagnosis, Troubleshooting, Electronic Controls & Operation
  • Very Detailed Explanation For Easy Repair
  • English (Publication Language)
SaleNo. 17
Chrysler TorqueFlite A-904 & A-727 Transmissions: How to Rebuild (Workbench How-to)
  • Hand, Tom (Author)
  • English (Publication Language)
  • 208 Pages - 10/04/2017 (Publication Date) - CarTech (Publisher)
No. 18
WFLNHB ESD5500E Electronic Engine Speed Controller Governor Generator Genset Parts
  • Model: ESD5500E
  • Input Power Supply: 12 or 24V DC(Transient and Reverse Voltage Protected)
  • Speed Range/Governor: 1K-7.5K Hz continuous
  • Features: The ESD5500E engine supports pre-adjustment function, and the speed and working idle speed are adjustable, bring you better experience
  • Easy to Install: The four corners are designed with holes, and screws are used for fastening, which make the speed regulator more convenient for installation and disassembly
No. 19
Electronic Engine Speed Controller, Quick Response Diesel Generator Set Speed Governor 24V
  • ENGINE SPEED CONTROL: The diesel generator set speed controller is a fully electronic device designed to control the engine speed.
  • QUICK RESPONSE: The engine speed controller responds quickly and accurately to the instantaneous load change.
  • CLOSED LOOP CONTROL: Based on closed loop control, the basic feature of the device is to achieve the rated speed and power, and reduce smoke exhaust by adjusting the combustion fuel and speed rate.
  • REVERSE CONNECTION PROTECTION: Once the power supply is reversely connected, the S6700E speed control unit will provide a series of protection.
  • HIGH STABILITY: Adopt premium material and excellent performance electric components, the speed controller has a high stability and reliability.
No. 20
Notonparts ESD5500E Electronic Engine Speed Control Unit Governor Generator Genset Parts
  • Part Number: ESD5500E
  • Input power:Supply 12 or 24V DC Battery Systems(Transient and Reverse Voltage Protected)
  • Speed Range/Governor 1K-7.5K Hz continuous
  • There are default parameters, but you also need to adjust the parameters you need
  • It Is a Replacement Part, Not Original Part. But It Can Work Good For

How to choose a good automotive engine speed governors

Does the idea of finding a fantastic automotive engine speed governors make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in automotive engine speed governors. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top automotive engine speed governors products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top automotive engine speed governors on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top automotive engine speed governors brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top automotive engine speed governors based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the automotive engine speed governors were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good automotive engine speed governors, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your automotive engine speed governors.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting automotive engine speed governors for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our automotive engine speed governors. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what automotive engine speed governors should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on automotive engine speed governors.