Thursday, November 5, 2026 · Customer reviews of US businesses
The Fair Hearing score
New
1 review
Scores get a color once a company has 5 reviews.
4DPF.com4DPF.com is a global supplier of advanced diesel emission system solutions for agricultural, construction, industrial, mining, forestry, and heavy-duty machinery. We specialize in high-quality DPF, DEF/AdBlue, SCR, and EGR emulator systems designed to reduce downtime, eliminate recurring aftertreatment issues, and improve machine reliability in demanding working environments.Our solutions are developed for a wide range of equipment brands and engines, including excavators, tractors, loaders, generators, skid steers, harvesters, and other diesel-powered machinery used worldwide. We support machines equipped with engines from manufacturers such as Caterpillar, Cummins, Kubota, Volvo, Isuzu, Perkins, John Deere, Yanmar, Deutz, Doosan, and many others.At 4DPF.com, we focus on plug-and-play installation, technical precision, durability, and professional customer support. Our products are engineered using high-quality electronic components resistant to vibration, moisture, and extreme temperatures, making them suitable for harsh industrial and off-road conditions.In addition to hardware solutions, we provide technical guidance, installation resources, and worldwide customer assistance. Our goal is to help operators and fleet owners minimize costly downtime associated with diesel aftertreatment systems while maintaining efficient machine operation.4DPF.com serves customers internationally and continues to expand its presence across Europe, North America, and Latin America through professional support, technical expertise, and reliable diesel emission system solutions.
4DPF.com (4dpf.com) has 1 customer review on The Fair Hearing, with an average rating of 5.0 out of 5.
1 approved review, newest moderated first
Did a delete on my SVL95-2s, never imagined it could be so simple. Great customer service (Walter is the best) and also very quick and decisive tech support. Had trouble installing two plugs didn't know what to do the guys came through immediately. My machine works great, highly recommend
By Arthur G.
