💥 Diesel Brothers Under Fire: $10.8 Million Lawsuit and Emissions Scandal Rock Their Empire!

The “Diesel Brothers” is a unique automotive reality show that captures the essence of diesel-powered vehicles and the passion behind them.

Centered around David Sparks, known as Heavyd, and David Kylie, referred to as Diesel Dave, the show has garnered a massive following for its thrilling projects and the undeniable chemistry between its stars.

Alongside them is Katon Hoskins, aka “the Muscle,” who adds his expertise and fitness prowess to the mix.

Together, they have transformed their love for diesel engines into a successful business venture.

However, their journey has not been without its share of financial controversies and legal challenges.

This article provides an in-depth look at their earnings, business ventures, and the obstacles they have faced along the way.

The Rise of Diesel Brothers

Background and Initial Ventures

Heavyd and Diesel Dave began their careers with the launch of Dieselers.

com in the early 2010s, a platform dedicated to buying and selling diesel trucks.

Their charisma and expertise quickly attracted a loyal audience, leading to the creation of the “Diesel Brothers” television series on Discovery Channel.

The show highlighted their thrilling diesel projects and showcased their skills, further enhancing their popularity.

Net Worth Estimates

As of early 2025, Heavyd’s net worth is estimated to be over $8 million, thanks to his various business ventures, including Sparks Motors and EMBR Motors.

Diesel Dave’s fortune is estimated at $3 million, reflecting his role as a co-founder of Dieselers.

com and his expertise in the automotive field.

Katon “the Muscle” Hoskins, with a successful YouTube channel and his mentorship company, Limitless Society, has an estimated net worth of $4 million.

Together, these figures illustrate the financial success the Diesel Brothers have achieved through their passion for diesel vehicles and their entrepreneurial spirit.

Legal Troubles and Financial Controversies

Despite their success, the Diesel Brothers have faced significant legal challenges that have impacted their finances.

1. Emissions Violations Lawsuit

In 2016, the Diesel Brothers were sued by the Utah Physicians for a Healthy Environment (UPE) for allegedly violating federal emissions regulations.

The UPE accused them of tampering with the emissions of their vehicles and encouraging others to do the same, posing a potential threat to public health.

Following their failure to comply with UPE’s requests to rectify the emissions issues, a court ruled against them in 2018, prohibiting them from modifying and reselling vehicles that could breach pollution limits.

In 2020, Heavyd, Katon, and Joshua Stewart were fined $850,000 for violating the Clean Air Act and the previous injunction.

2. Trademark Lawsuit from Diesel Fashion Brand

In 2019, the Diesel Brothers faced another legal battle when the Italian fashion brand Diesel sued them for trademark infringement.

The fashion brand claimed that the Diesel Brothers’ use of “Diesel” in their business names violated trademark laws, especially given the brand’s established presence.

Initially seeking over $59 million in damages, the court ultimately reduced the amount, and the Diesel Brothers were ordered to pay $10.8 million in damages.

This lawsuit highlighted the complexities of branding in the marketplace, especially when it involves established names.

3. Business Ventures Gone Awry

In 2019, Heavyd entered into a business relationship with Trevor Milton, the former CEO of Nikola Corporation, to create pickup trucks.

However, this partnership faced challenges when Milton was accused of inflating the company’s assets.

Although Heavyd purchased prototypes of the Badger truck, the venture proved to be costly and frustrating, leading to more legal entanglements with Nikola.

In 2022, the Diesel Brothers announced the end of their Discovery show to pursue different career paths.

While the show brought them significant fame, they felt it did not adequately cover their day-to-day business operations.

This decision allowed them to return to YouTube, where they could exercise greater creative control and focus on community-oriented projects, including recovery services for diesel enthusiasts.

The Diesel Brothers’ journey is a testament to their resilience and passion for the automotive industry.

Despite facing substantial legal challenges and financial controversies, Heavyd, Diesel Dave, and Katon have demonstrated their ability to adapt and thrive.

Their story serves as an inspiration for aspiring entrepreneurs in the automotive field, highlighting the importance of perseverance and adaptability in the face of adversity.

As they continue to navigate their careers, the Diesel Brothers remain committed to their craft, proving that their love for diesel-powered vehicles and their entrepreneurial spirit can overcome obstacles.

With a loyal fan base and a growing online presence, the Diesel Brothers are poised to continue making an impact in the automotive world for years to come.