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Contact Sinister Diesel Customer Service

How to Reach a Person at Sinister Diesel

Verified Contact Information

Toll-Free Number:

  • 1-888-966-6543
Call Now

Customer Service:

  • 1-916-772-9253

Customer Service:

info@sinisterdiesel.com
Send Message

Sinister Diesel Customer Service Overview

The aggregated data is based on calls made from PissedConsumer.com website and questionnaires provided by PissedConsumer.com users.

Call Volume by Day
sun
mon
tue
wed
thu
fri
sat
Most Popular Sinister Diesel Phone Number
1 (888) 966-6543
Average Calls duration
1 minute
Most Popular Sinister Diesel Email Address
info@sinisterdiesel.com
Issue Resolution Rate
Low (0% reported full resolution)
Contact Method Distribution
93% phone, 7% email
Common Reasons for Contact
Product/ service, activation/ cancellation and return/ replace
View full overview

How to Contact Sinister Diesel?

Sinister Diesel phone number is (888) 966-6543. Contact the company via phone to speak to a live support representative and get information about available products, returns, and exchanges, check the status of your order, get tech support, address inquiries about warranty, resolve account issues, and more. The leats busy days to contact Sinister Diesel customer care department by phone are Wednesday and Thursday.

Sinister Diesel email address for customer assistance is info@sinisterdiesel.com. You can also complete an online inquiry form on the company’s website or message the support team on Facebook, X, and Instagram. To get faster assistance consider contacting the company via phone.

Sinister Diesel headquarters is based in California. Sinister Diesel corporate address is 2025 Opportunity Dr, Roseville, California 95678, United States. Please note that if you need to return or exchange an item purchased, make sure to get in touch with the customer service team first to

Sinister Diesel customer support department provides assistance Monday through Friday from 8 am to 5 pm PST. On Saturday and Sunday, the company is closed. Support agents strive to address all inquiries and requests as quickly as possible, however, sometimes it may take up to 24 for the team to respond. Please note that the usual Sinister Diesel hours of operation may change during the holiday season, and the company is more likely off on major holidays.

To contact the company via Sinister Diesel website press the “Help Center” page at the top of the page and select the reason for your inquiry from the following: “Returns/ Exchanges”, “Check Order Status”, “Sales Inquiry”, “Parts Tech Support”, “Warranty Inquiry”, “Account Issues”, “Tracking”, and “Shipping Protection. After that, complete an online form and submit your message.

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Contact Information

Sinister Diesel Website:

Sinister Diesel Help Center:

Corporate Office Address:

Sinister Mfg. Company, Inc.
2025 Opportunity Dr
Roseville, California 95678
United States

Other Info (opening hours):

Working Hours:

Monday - Friday: 8am - 5pm PST

Saturday: 8am - 1pm PST

Sunday: Closed

More contact details

Why Customers Call Sinister Diesel?

Top Reasons of Customers Calls

  • Customer Inquiries & Issues 50%
  • Product/ Service 30%
  • Activation/ Cancellation 10%
  • Return/ Replace 10%

Customer Inquiries & Issues

50%
  • "O ring"
  • "Parts"
  • "need a software file"

Product/ Service

30%
  • "Want to order a part"
  • "I bought a skin gauge from AutoZone I was wondering if you guys could program it for me for a 6.0 powerstroke diesel I'm not good with computers and I'm having problems and I'm starting to get really upset with it"
  • "Adapter pigtail for windows"

Activation/ Cancellation

10%
  • "Cancel a shipment"

Return/ Replace

10%
  • "Part replacement"

Compare Sinister Diesel Customer Service To

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Frequently Asked Questions

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The primary sources for the contact information listed here are official company sources, such as their corporate website and verified social media profiles. The PissedConsumer team also uses direct data from the company or its authorized representatives when possible.

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