Diesel Customer Service

Phone Number & Contact Info

Diesel's Best Phone Number

877-361-6150
Toll-free·Calls Customer Service·Most popular Diesel number
Q:

How do I talk to a live human at Diesel?

A:Calling this Diesel number should go right to a real human being
Q:

Does Diesel offer 24 hour customer service?

A:Not at this number; hours here are 8am-midnight EST. The least busy day is Friday, and the most busy day is Tuesday. Details
Q:

How long will I wait on hold?

A:We don't expect that you will have to wait to talk to a person. This is a direct line.

Diesel Customer Phone Numbers

Purchasing

877-344-8342
Toll-free · 8am-midnight EST · Calling this Diesel number should go right to a real human being ·

How do I get through the phone menu to a live person?

GetHuman researchers routinely call this Diesel phone number to document the phone system.
Here is our latest tip for weaving through the phone menu to get to a real person the fastest: Calling this Diesel number should go right to a real human being
Below are some clips we've found from Diesel's phone menus and tips that help give an idea of what you will encounter when you call. We've highlighted why they are important as well:

The first phone menu

"If you were born after nineteen twenty, press three.
If you have used a telephone in the last week, press nine."
Excerpt from a call with Diesel
Tuesday, January 16, 2024 11:29 PM
In fact, much of this information on this page is superfluous because this Diesel phone number is a direct line to a human being. The line is well-staffed and you should anticipate a very short wait on hold or none whatsoever, as long as you are calling during business hours.
We don't know of any phone menus you would encounter when calling either.

What are the hours and when should I call?

Diesel operates the call center for this 877-361-6150 phone number 8am-midnight ET. The short answer is that you should call on a Friday. This observation and the following section are based on analysis of a sample set of 9 calls made in the last 90 days using our free, web-based phone (see above).
An important note: busy times vs hold times vs best time to call
When we refer to busy or less busy times, we are talking about the volume of calls. The busiest times are when the most people are calling this Diesel phone number (least busy times have fewer people calling). This high call volume does not necessarily mean that you will have a long hold time when you call. Companies like Diesel staff their call centers differently based on the time of day and day of the week, so you may experience a shorter wait on hold at the busiest of times. When we refer to the best time to call, we are referring to the optimal combination of lower call volume and shorter wait times.

The least busy time to call

The least busy day to call Diesel is Friday. The most busy day to call is Tuesday. Again, this is based on a sample of 9 calls made with our AI-powered, web-based phone in the last 90 days.

The shortest wait on hold

We measured the shortest hold times to be on Monday. The longest wait in the queue on average occurs on Thursday.

The best time to call Diesel

In summation, the best day to call Diesel is Friday. This is not the day with the shortest wait on hold in the phone system, but we still recommend it for its ideal combination of low call volume and short hold times. Plus we believe that Diesel staffs the call center well on Friday.
Once again, please put this information in perspective because this phone number has no phone menu or long waits. It generally gets picked up right away if calling during their opening hours. If there is any way, it will typically be very short.

Why Customers Call Diesel

If you have time to do a bit of reading before you call Diesel, we recommend you read over some of our problem-specific articles.

What is Diesel?

Diesel refers to a type of fuel used in diesel engines. It is a petroleum-based product obtained through the distillation of crude oil. Diesel fuel is known for its high energy density and is predominantly used in vehicles such as trucks, buses, trains, and boats. Unlike gasoline engines, diesel engines work on the principle of compression ignition, where a mixture of air and fuel is compressed until it reaches a high enough temperature for spontaneous combustion to occur. Diesel fuel is also used in various industrial applications, power generators, and agricultural machinery. It offers better fuel efficiency and produces lower carbon dioxide emissions compared to gasoline. Additionally, diesel engines generally provide higher torque, making them suitable for heavy-duty tasks.

Are diesel performance upgrades suitable for all diesel vehicles?

Diesel performance upgrades may not be suitable for all diesel vehicles. The suitability depends on various factors such as the vehicle's make, model, and its current condition. Additionally, it also depends on the specific type of performance upgrade being considered. While many diesel vehicles can benefit from upgrades such as aftermarket exhaust systems, cold air intakes, or tuning chips, there are some limitations. Older or high-mileage vehicles may have components that are not compatible with certain upgrades, and modification may lead to greater wear and tear on these vehicles. It is always recommended to consult with a professional or specialist to determine if a particular performance upgrade is suitable for a specific diesel vehicle, taking into account its overall condition and compatibility.

What is diesel performance?

Diesel performance refers to the enhancement of a diesel engine's power, torque, efficiency, and overall performance. It involves modifying various components and systems to achieve optimal results. Diesel performance upgrades can range from simple modifications such as air intakes, exhaust systems, and tuning chips to more complex enhancements like turbochargers, intercoolers, and fuel injectors. These modifications increase the engine's ability to deliver more power and torque, allowing for improved acceleration, towing capacity, and fuel economy. Diesel performance also involves optimizing fuel combustion, reducing friction, and enhancing cooling systems to ensure durability and reliability. Whether for personal vehicles, work trucks, or even racing applications, diesel performance allows diesel engines to reach their full potential in terms of performance and efficiency. Dieselperformance.com provides a wide range of products and services to help enthusiasts achieve their desired diesel performance goals.

Top Diesel customer service problems

Click the link above to get answers to just about any Diesel customer service question, including step by step guides for the most complex issues. You can also detail a new issue and get answers instantly.

More Diesel Customer Service Contacts

There are of course other ways to contact Diesel customer service besides the phone. Below we list the best ones, by medium.

Diesel Customer Email Addresses

Corresponding with a customer service department by email may not be your first choice, especially if your issue is urgent or time-sensitive. But email is a nearly ubiquitous form of communication, and Diesel will reply our your email.

Diesel Customer Help Desk / Web Support

shop.diesel.com - Customer Service
Online customer service support
As a last, sometimes only, resort- Diesel customer service can be accessed through their website. This can entail digging through help articles before finding a form and "being allowed" to submit a problem to their team, and rarely leads to a real-time conversation, which is why GetHuman does not recommend this unless it's the only way.

Conclusion and closing notes

This is Diesel's best phone number, the real-time current wait on hold and tools for skipping right through those phone lines to get right to a Diesel agent. This phone number is Diesel's best phone number because 54 customers like you used this contact information over the last 18 months and gave us feedback. Common problems addressed by the customer care unit that answers calls to 877-361-6150 include Returns, Cancel order, Change order, Track order, Complaint and other customer service issues. Rather than trying to call Diesel first, consider describing your issue first; from that we may be able to recommend an optimal way to contact them via phone or web or email. In total, Diesel has 2 phone numbers. It's not always clear what is the best way to talk to Diesel representatives, so we started compiling this information built from suggestions from the customer community. Please keep sharing your experiences so we can continue to improve this free resource.

GetHuman does not provide call center services or customer support operations for Diesel. The two organizations are not related. GetHuman builds free tools and shares information to help customers of companies like Diesel. For large companies that includes tools such as our GetHuman Phone, which allows you to call a company but skip the part where you wait on the line to get a live human rep. We continue to work on these tools to help customers like you (and ourselves!) navigate the messy phone menus, hold times, and confusion with customer service. As long as you keep sharing it with your friends and loved ones, we'll keep doing it.

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