• Description
  • Why Buy From Us

The Future of Fuel Efficiency

Tomahawk 4500 Watt Inverter Generators are designed for professional use. This generator provides robust, reliable power for construction sites and remote operations, with advanced inverter technology ensuring clean, stable power for sensitive electronics and heavy-duty equipment. The inclusion of EFI enhances fuel efficiency, improves start-up performance, and reduces emissions, making it ideal for OSHA working conditions. Tomahawk 4500 Watt Inverter Generators feature an electric start for effortless ignition, super quiet operation to minimize noise disruptions, and an ECO mode that maximizes fuel efficiency by adjusting the engine speed to match the load. Backed by a 2-year warranty, the TG4500iEFI guarantees durability and top-notch performance, supported by Tomahawk’s nationwide service centers and readily available spare parts


Inverter Technology

Provides clean, stable power ideal for sensitive electronics, ensuring that your devices are protected against power surges.

Compact and Portable Design

Easy to transport and store, perfect for camping, tailgating, job sites, and home backup power.

Quiet Operation

Designed to operate quietly, making it suitable for residential use without disturbing neighbors or wildlife

Features

  • Advanced Electric Fuel Injection (EFI) Technology: Ensures superior fuel efficiency, reduced emissions, and smoother operation.
  • 4500-Watt Power Output: Delivers reliable and consistent power for various applications, from emergency backup to outdoor activities.
  • Electric Start Feature: Allows for easy, hassle-free startup with the simple push of a button, eliminating the need for manual pull starts.
  • CO Alert Technology: Equipped with carbon monoxide detection, automatically shuts down the generator if harmful CO levels are detected, enhancing safety..
  • Robust and Durable Construction: Built to withstand tough conditions, ensuring reliability and longevity in various environments.
  • Fuel-Efficient Performance: Maximizes fuel economy, offering longer run times and reducing the need for frequent refueling.
  • User-Friendly Interface: Features intuitive controls for effortless operation and monitoring of generator performance.
  • Versatile Power Solutions: Includes multiple outlets to accommodate a wide range of power needs, from tools and appliances to recreational devices.
  • Low Oil Shutdown: Automatically turns off the generator to protect the engine from damage if the oil level is too low.
  • Overload Protection: Safeguards the generator and connected devices from damage due to overload, ensuring a safe power supply.
  • Eco Mode: Optimizes fuel consumption for extended runtime and quieter operation, perfect for overnight use or in noise-sensitive areas.
  • 2-Year Warranty: Backed by a comprehensive 2-year warranty, providing peace of mind and ensuring reliable performance.

Specifications

  • Engine: 159cc
  • Voltage: 120V
  • Amperage: 20A(120V)
  • Running Amperage: 37.5A
  • 120V Outlets: 2
  • 120V Twist-Lock Outlets: 1
  • Starting Watts: 4500w
  • Rated Watts: 3800w
  • Start Type: Electric, Remote, Manual
  • Tank Capacity: 1.6 gal (6 liters)
  • Run Time: 9hrs @ 1/4 load
  • Oil Type: SAE10W-30
  • Oil Capacity: .5 quarts 
  • Weight:  58.4lbs (kg)
  • Dimensions: 20.7×12.2×19.7 (540×310×500mm)
  • Noise Level: 62 dBA

Package Includes

  • TG4500i Generator
  • Remote Control Starter

What is EFI?

EFI stands for Electronic Fuel Injection, a system used in internal combustion engines to inject fuel into the engine's cylinders. Unlike traditional carbureted systems, which rely on the vacuum created by the engine to pull fuel into the combustion chamber, EFI systems use electronic controls to precisely meter the fuel delivery based on various engine parameters. This precise control allows EFI systems to offer several advantages over carbureted systems, including:

  1. Improved Fuel Efficiency: By optimizing the fuel-to-air ratio for all operating conditions, EFI systems can reduce fuel consumption.
  2. Enhanced Engine Performance: EFI systems provide better throttle response, more power, and smoother acceleration by delivering the precise amount of fuel needed at any given moment.
  3. Reduced Emissions: EFI helps in lowering emissions by ensuring a more complete and efficient combustion process.
  4. Easier Starting: Engines with EFI start more easily and reliably, especially in cold conditions, because the system can adjust to the temperature and atmospheric conditions.
  5. Better Altitude Adaptation: EFI can compensate for changes in altitude, where the air density affects combustion, without the need for manual adjustments.
  6. Lower Maintenance: EFI systems generally require less maintenance than carbureted systems, as they have fewer parts that can become clogged or need adjustment.

EFI has become the standard in automotive engines due to these advantages and is increasingly common in smaller engines for motorcycles, power equipment, and even lawn mowers, offering improved efficiency and performance across a wide range of applications.

Applications

  • Camping
  • Recreational Use
  • Construction
  • Various Electronics
  • Computers, Speakers
  • Power Tools, Drills, Power Saws
  • Outdoor and Indoor Lights 
  • Food trucks

CARB Compliant

This product is CARB (California Air Resources Board) compliant, meeting strict air quality standards for safe and environmentally responsible use in California. This product meets the CARB exception for qualifying as construction equipment. For more information, please visit CARB's official website.

CA Proposition 65 Warning

⚠ WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.

Info and Guides

• Specification Sheets

Parts Diagram 

Innovation and Reliability at Our Core

At Machine Horizon, we believe that powerful machines drive progress. Our mission is to make advanced technology accessible to creators, engineers, and businesses across industries—from precision CNC and milling to farming, printing, and laboratory equipment.

We’re dedicated to providing reliable, high-performance machines that help you produce, build, and innovate with confidence. Every product we offer is carefully selected for its engineering quality, efficiency, and long-term value.

A Customer-First Approach

We’re more than an online store—we’re your partner in finding the best machine for your need. Unlike large, impersonal retailers, our dedicated team delivers personalized guidance at every step. Whether you’re exploring, seeking expert advice, or need ongoing support, our specialists are always just a call or email away.

Passion for Machinery & Resilience


Our brand is built on a deep respect for craftsmanship, performance, and reliability. We understand how important the right equipment is to your success—that’s why we focus on machines that combine innovation with lasting durability. From small workshops to large production facilities, Machine Horizon provides solutions that help you work smarter, faster, and better.

Trusted Experts, Curated Brands


We partner directly with industry-leading manufacturers across multiple sectors to ensure every product meets our standards for quality and performance. Our curated selection means you can shop with confidence, knowing each machine is backed by expert support and full manufacturer warranties.

More Reasons to Choose Machine Horizon

  • Price Match Guarantee – We’ll match any competitor to ensure you always receive the best value.
  • Free Shipping – Enjoy free delivery on most* orders across the lower 48 U.S. states.
  • 100% Secure Ordering – Our platform uses SSL encryption to protect your information.
  • Exclusive Packages & Volume Discounts – Custom pricing available for workshops, labs, schools, and bulk orders.
  • Authorized Dealer – Every order is protected with full manufacturer support and warranties.


With Machine Horizon, you don’t just buy equipment—you invest in performance, precision, and long-term reliability

Frequently Asked Questions

Yes! We provide free and fast shipping on MOST orders within the continental United States. However, some specific brands and items will require a quote. You can live chat or call us for a quote
Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.
We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.
Absolutely! Our in-house product experts are here to help. Live chat or call us 513-743-829 for personalized advice before or after your purchase.
Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.
Yes, we only sell 100% authentic, brand-new products, sourced directly from our manufacturers or authorized distributors.

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