Discount Category: Electronics & Accessories

Hot Offer

Boost Fuel Mileage with The Diesel Dudes! $15 Off
  • Total Used: 1
  • Coupon Applicable In: Canada, United States
  • Verified Coupon
  • Last used: 2 days ago
PLUG

Discount Applicable On: Web and app

Harness Plugs
$15 Off

Promo Code:
PLUG

This promo is verified and valid until 30-06-2026

Details About the Above Code:
Get better fuel performance with The Diesel Dudes promo code PLUG, saving $15 on OGG Harness Plugs. Perfect for enhancing your tuner harness plug kit and maximizing mileage.

Promo Code:
PLUG

This promo is verified and valid until 30-06-2026

Discount Category: Delete Kits

Today's Best Offer

The Diesel Dudes Offers $30 Off Diesel Performance Parts
  • Total Used: 4
  • Coupon Applicable In: Canada, United States
  • Verified Coupon
  • Last used: 2 days ago
TAKE30

Discount Applicable On: Web and app

$30 Off
$199

Promo Code:
TAKE30

This promo is verified and valid until 30-04-2026

Details About the Above Code:
Use The Diesel Dudes coupon code and enjoy $30 off when you spend $199 or more. Find premium delete kits designed for Ford, GM/Chevy, Dodge Ram, Jeep, and Nissan vehicles while saving money.

Promo Code:
TAKE30

This promo is verified and valid until 30-04-2026

Discount Category: Fashion & Apparel

Exclusive Coupon

Score 10% Off Comfortable Clothing Merch at Diesel Dudes
  • Total Used: 10
  • Coupon Applicable In: Canada, United States
  • Verified Coupon
  • Last used: 9 hours ago
OFFGRID

Discount Applicable On: Web and app

10% Off
Clothing Merch

Promo Code:
OFFGRID

This promo is verified and valid until 31-03-2026

Details About the Above Code:
Your new go-to gear is here! Use The Diesel Dudes promo code OFFGRID to take 10% off clothing merch, from soft tees and cool caps to warm hoodies. Designed for guys who like to live boldly.

Promo Code:
OFFGRID

This promo is verified and valid until 31-03-2026

Discount Category: Delete Kits

Hot Offer

DPF Delete Deals! Take $30 Off Your Order this using code
  • Total Used: 16
  • Coupon Applicable In: Canada, United States
  • Verified Coupon
  • Last used: 4 hours ago
DARKIRON

Discount Applicable On: Web and app

Save $30
Now

Promo Code:
DARKIRON

This promo is verified and valid until 28-02-2026

Details About the Above Code:
Truck Mods Just Got Cheaper! Get $30 off by using The Diesel Dudes discount code DARKIRON on popular vehicles like Ford, Jeep & Nissan when you shop for delete kits, DPF & CAT delete pipes.

Promo Code:
DARKIRON

This promo is verified and valid until 28-02-2026

Discount Category: Electronics & Accessories

Hot Offer

The Diesel Dudes! Harness Plugs Starting From $169
  • Total Used: 7
  • Coupon Applicable In: Canada, United States
  • Verified Coupon
  • Last used: 3 days ago

Discount Applicable On: Web and app

Harness Plugs
$169

Details About the Above Code:
Save on automotive tuning with The Diesel Dudes discount code, giving harness plugs for cars and Jeeps starting from $169. This Diesel Dudes discount helps you optimize your vehicle.

Discount Category: Delete Kits

Exclusive Coupon

Shop $80 EGR Delete Kits with Diesel Dudes Savings
  • Total Used: 17
  • Coupon Applicable In: Canada, United States
  • Verified Coupon
  • Last used: 5 days ago

Discount Applicable On: Web and app

$80 EGR
Delete Kits

Details About the Above Code:
Use The Diesel Dudes discount code to score EGR Delete Kits from just $80. Designed to stop intake carbon buildup, prevent valve issues, cut down on engine knock, and lower heat during towing.


As The Diesel Dudes Partner, we may be compensated if you make a purchase using our provided coupon codes.

Top 3 Recently Expired The Diesel Dudes Coupon Codes

The below 3 The Diesel Dudes coupon codes were newly expired! They may still be working! It never hurts to try!

Discount Category: Delete Kits

Hot Offer

Diesel Dudes Year-End Savings: $100 Off Performance Kits
  • Applicable Countries: Canada, United States
  • Total Used: 4
  • Last used: 6 days ago
  • Verified Coupon
2026

Discount Applicable On: Web and app

$100 Off
Kits

Promo Code:
2026

This promo is verified and valid until 10-01-2026

Details About the Above Code:
Save big on performance upgrades with The Diesel Dudes coupon code 2026, featuring a year-end 2026 offer of $100 off full delete kits. Designed for trucks and cars like Dodge Ram, Chevy, and more.

Promo Code:
2026

This promo is verified and valid until 10-01-2026

Discount Category: Delete Kits, Electronics & Accessories

Hot Offer

Upgrade Your Truck and Save $100 on Full delete Bundles
  • Applicable Countries: Canada, United States
  • Total Used: 11
  • Last used: 1 week ago
  • Verified Coupon
CYBER25

Discount Applicable On: Web and app

Cyber Monday
Offer

Promo Code:
CYBER25

This promo is verified and valid until 31-12-2025

Details About the Above Code:
Save $100 on premium full bundles using The Diesel Dudes coupon code CYBER25. Compatible with Dodge Ram, Jeep, Nissan, and other vehicles, these bundles make updating your truck easy.

Promo Code:
CYBER25

This promo is verified and valid until 31-12-2025

Discount Category: Delete Kits, Electronics & Accessories

Today's Best Offer

Black Friday Savings: $75 Off Diesel Dudes Delete Products
  • Applicable Countries: Canada, United States
  • Total Used: 11
  • Last used: 3 days ago
  • Verified Coupon
BF2025

Discount Applicable On: Web and app

Delete Products
$75 Off

Promo Code:
BF2025

This promo is verified and valid until 31-12-2025

Details About the Above Code:
Take advantage of The Diesel Dudes coupon code BF2025 this Black Friday to save $75 on all delete products. From full delete kits to delete tuners and software, it’s the ultimate deal for the season.

Promo Code:
BF2025

This promo is verified and valid until 31-12-2025

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Terms of Usage for The Diesel Dudes Coupon Code

  • The Diesel Dudes promo codes may not work on already discounted products.
  • Only one The Diesel Dudes discount code can be used per product.
  • Each The Diesel Dudes voucher code has an expiry date so make sure to check it before applying.
  • The Diesel Dudes coupon codes do not apply to any additional charges (like taxes).
  • The Diesel Dudes voucher codes can only be used on items that are currently in stock.
  • Some The Diesel Dudes discount codes are product-specific and only work on selected items.

The Diesel Dudes FAQ’s

  1. Does The Diesel Dudes ship to the USA?
    Yes, The Diesel Dudes provides shipping to the USA and is free of charge. Your order will be processed within 1-4 business days and delivered via UPS within 4-8 days. You will receive a tracking number by email once your order ships.

  2. What is the return policy for The Diesel Dudes?
    The Diesel Dudes return policy varies by product. Items that require custom tuning, exhaust systems, and DPF/CAT delete pipes are final sale and cannot be returned or refunded. If you cancel your order before it ships, a 3.5% transaction fee will be deducted. For faulty or incorrect items, The Diesel Dudes will send a replacement.

  3. What payment methods does The Diesel Dudes accept?
    You can pay at The Diesel Dudes using credit or debit cards like Visa, Mastercard, and American Express. They also accept PayPal for secure online checkout.

  4. How can I contact The Diesel Dudes customer support?
    You can contact The Diesel Dudes customer support by calling 888-830-2588 or through sending them an email at [email protected] . For help with technical issues or tuner errors, you can also submit a support ticket through their Help Center. Their team is available to assist you with any questions about the product.

  5. Why is my The Diesel Dudes coupon code not working?
    If your The Diesel Dudes promo code is not working, there could be a few possible reasons:

    • Check if the coupon code has expired.
    • Make sure you have entered the code correctly without any typos or spelling mistakes.
    • Confirm that the The Diesel Dudes discount code is valid for the product you are purchasing, as some promo codes are product specific.
    • Review the The Diesel Dudes voucher code terms, it might require a minimum order value to apply.

  6. Can I use multiple The Diesel Dudes coupon codes on a single order?
    No, you cannot use multiple The Diesel Dudes voucher codes on a single order. Only one discount code can be applied per purchase.

  7. Is there a customer loyalty program at The Diesel Dudes?
    No, The Diesel Dudes currently don’t have a loyalty or rewards program. However, you can still save some dollars through promo codes, email sign-up discounts, and bundle deals on their website.

  8. Can I get a welcome offer as a new customer at The Diesel Dudes?
    Yes, as a new customer, you can get a $30 off using The Diesel Dudes promo code TAKE30. Sign up for the newsletter on their official website to receive your first order The Diesel Dudes promo code.

  9. Where to find The Diesel Dudes coupon codes?
    If you are looking for The Diesel Dudes promo codes, start by checking their official website, as they occasionally release promotional offers there. You should also subscribe to their newsletter to receive the latest deals and exclusive offers directly in your inbox.
    Additionally, The Diesel Dudes team is active on social media, where they often post discounts and special promotions.
    You can also visit trusted third-party coupon websites, which aggregate and list the latest The Diesel Dudes discount codes.

  10. What is the best time to shop on The Diesel Dudes?
    While there isn’t a specific best time to shop at The Diesel Dudes, you can still save money by shopping during their seasonal sales or promotional periods. They offer discounts, coupon codes, and special bundle deals during events like Diesel Week, Memorial Day, March Madness, Independence Day Sale & many others.

How Can I Save at The Diesel Dudes without a Coupon Code?

There are several ways to save at The Diesel Dudes even if you don’t have a coupon code:

  • Follow The Diesel Dudes on social media to stay updated on discounted deals and limited-time offers.
  • No coupon code is required to avail free shipping since The Diesel Dudes delivers all orders free of cost within the US and Canada.
  • Subscribe to their email newsletter to receive a $30 gift code in your inbox, along with regular updates on seasonal sales.
  • Purchase complete delete kits or bundles to save more compared to buying individual parts separately.
  • Shop during major sales events like Diesel Week, Independence Day, and Black Friday to take advantage of storewide discounts.

How to Apply The Diesel Dudes Coupon Code at Checkout?

You can apply your The Diesel Dudes promo code DARKIRON by following these steps:

  • Visit The Diesel Dudes website and browse for the product you want to purchase.
  • Add the product to your cart by clicking on the "Add to Cart" button.
  • Once you are ready, click on the cart icon at the top right corner of the page and select "Checkout."
  • On the checkout page, look for a field labeled "Discount Code or gift card"
  • Enter your The Diesel Dudes discount code PLUG into the box and click "Apply.
  • If the code is valid, you will see the discount reflected in the total amount.
  • Fill in your shipping and payment details and place your order.

Seasonal Sales and Promotions at The Diesel Dudes

Throughout the year The Diesel Dudes offer exclusive deals to celebrate popular holidays and special events. Here’s a breakdown of all the seasonal promotions where you will find exclusive deals.

  1. Father’s Day Sale (15-16 June) - For Father’s Day, they offer up to $100 off on the purchase of a delete kit using The Diesel Dudes coupon code DELETE.
  2. Independence Day (2nd - 7th July) - You can get a $50 discount on all their delete products during their Independence Day Sale. Plus, if you make a purchase using their The Diesel Dudes voucher code USA, you will be automatically entered into a lucky draw where one winner will get the entire order for free. They also drop new merch on July 4 along with a 10% storewide discount on all orders over $500 with The Diesel Dudes discount code JULY.
  3. Diesel Week (June 9 - 16) - During Diesel Week, they offer storewide discounts. You can get $75 off anything that includes a delete tune. Plus, when you buy one delete bundle, you will get $150 off your second bundle. Another great deal is if you purchase a full delete bundle using The Diesel Dudes promo code TUNE, you will save $100 on your kit and a chance to get your entire order refunded.
  4. Memorial Day (Last Monday of May) - On Memorial Day, they offer deals on full delete bundles where you can save $100 on your orders using The Diesel Dudes coupon code DIESEL.
  5. March Madness (27 - 31st March) - By the end of march, they release some crazy march deals including a $50 discount on full delete bundles with The Diesel Dudes voucher code MARCHMAD.
  6. Halloween & Black Friday (4th Thursday of November) - They roll out some of their biggest savings of the year on Halloween & Black Friday, including $100 off full delete bundles using The Diesel Dudes coupon code BOO.
  7. Cyber Week (November 26 - 2nd December) - For one week, they offer 15% off all merchandise storewide so you can upgrade your gear and save big before the holidays using The Diesel Dudes promo code MONDAY.

Top Recent The Diesel Dudes Coupon Codes

Savings Type The Diesel Dudes Offer Code/Offer Discount End Date
Harness Plugs $15 Off Boost Fuel Mileage with The Diesel Dudes! $15 Off
PLUG
2026-06-30
$30 Off $199 The Diesel Dudes Offers $30 Off Diesel Performance Parts
TAKE30
2026-04-30
10% Off Clothing Merch Score 10% Off Comfortable Clothing Merch at Diesel Dudes
OFFGRID
2026-03-31
Save $30 Now DPF Delete Deals! Take $30 Off Your Order this using code
DARKIRON
2026-02-28
Harness Plugs $169 The Diesel Dudes! Harness Plugs Starting From $169 2026-06-30
$80 EGR Delete Kits Shop $80 EGR Delete Kits with Diesel Dudes Savings 2026-04-30
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BENEFITS OF SHOPPING ON The Diesel Dudes WITH COUPON CODE!
  • Super-Fast Delivery

    Super-Fast Delivery

  • Friendly Customer Support

    Friendly Customer Support

  • Newsletter Deals

    Newsletter Deals

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    Free & Fast Delivery

  • Coupons / Deals

    Coupons / Deals

  • NHS Discounts

    NHS Discounts

  • Student Discounts

    Student Discounts

The Diesel Dudes Contact Details
WHAT PAYMENT METHODS DOES The Diesel Dudes ACCEPT?
  • VISA

    Visa

  • Master card

    Master-card

  • Paypal

    Paypal

  • Apple pay

    Apple Pay

  • Credit Card

    Credit Card

  • American Express

    American Express

  • Google Pay

    Google Pay

  • Gift Card

    Gift Card

The Diesel Dudes WEBSITE LANGUAGES

English

COUNTRIES WHERE The Diesel Dudes DELIVER

USA - Canada

Similar The Diesel Dudes Brands
The Diesel Dudes Shipping / Return Policy
The Diesel Dudes process orders within 1-4 business days after payment is received. Shipping is handled via UPS, with standard delivery taking an additional 4-8 business days after processing. Some products may take longer due to high demand, logistics, or customization (like VIN-specific tuners). Express shipping is available for select items at checkout. You will receive tracking details by email once your order ships. Note that it can take UPS up to one business day to update tracking information after you receive it.
  • Total Offers

    9

  • Total Coupon Codes

    14

  • Total Verified Deals

    6

  • The Diesel Dudes Average Saving

    15%

  • Last Updated

    2026-01-28T08:27