Accessories

Diesel Truck Accessories: OBD-II Cables, Mounting Hardware, SD Cards, and Everything Else Your Build Needs

You've got the tuner. You've got the delete kit. Now you need everything else that makes the install actually work. The Diesel Dudes accessories collection has the supporting hardware that most guys forget to order until they're halfway through a build — OBD-II cables, mounting brackets, power cables, SD cards, adapters, and the small-but-critical parts that hold a professional install together.

What's in the Accessories Collection?

This collection covers the hardware category that sits between the big-ticket tuner and the truck itself. These are the components that complete your setup:

• OBD-II cables and extensions — route your tuner connection cleanly from the port to wherever you've mounted the device
• Mounting brackets — dash mounts, windshield mounts, and custom bracket solutions to keep your tuner or monitor in a usable position
• Power cables and adapters — direct power hookups for tuners that need a clean power feed beyond the OBD-II port
• SD cards — compatible storage for EZ LYNK, EFI Live AutoCal V3, and other tuning platforms that use removable media for tune files and data logging
• Harness adapters and connectors — plug-in solutions for tying tuner hardware into your truck's existing wiring

Why the Small Parts Matter

Here's the thing — a $500 tuner sitting on a flimsy mount or running on a cable that's too short is a frustrating experience every time you get in the truck. The accessories aren't glamorous, but they're what separates a clean, professional install from a rat's nest of wiring and a screen that vibrates loose on the highway.

We've seen guys spec out an entire delete build perfectly and then get stuck waiting on a cable or SD card that didn't come with the tuner. These parts exist so that doesn't happen to you.

Tuner Compatibility

The accessories in this collection are selected to work with the tuning platforms The Diesel Dudes sells. That includes:

• EZ LYNK Auto Agent — SD card storage, power accessories, and mounting solutions
• EFI Live AutoCal V3 — cables, adapters, and data storage
• Mini Maxx — OBD-II cable extensions and mounting hardware

Check individual product listings for compatibility with your specific tuner and truck year. Most accessories include fitment notes to make sure you're ordering the right spec for your setup.

Truck Builds That Need These Parts

This collection is relevant any time you're working on:

• Full delete builds on 6.7L Cummins, 6.7L Powerstroke, or Duramax trucks — these installs almost always require additional cabling and mounting hardware
• Tuner upgrades — swapping from an older device to a newer platform often means replacing cables and storage media
• Clean cab builds — if you want the tuner mounted properly and cables routed out of sight, you need the right bracket and cable length
• Shop installs — having the right accessories stocked means you can complete installs in one shot without waiting on parts

Order What You Need the First Time

The most common accessories mistake is ordering the tuner and forgetting to check what else the install requires. Review your tuner's install guide before you order — if it needs an SD card, a specific cable length, or a separate power connection, grab those at the same time. It saves you time and a second shipping wait.

Not sure what you need? We know these products and the installs they're used for. We'll point you in the right direction.

The Bottom Line

The accessories collection is everything that makes a diesel tuner build complete. OBD-II cables, mounting brackets, power adapters, SD cards, and harness hardware — the parts that get overlooked until you need them. Stock up when you order your tuner and your install goes a whole lot smoother.

If you have any questions, feel free to shoot us a message!

Frequently Asked Questions

Does my tuner come with all the cables and hardware I need?

Most tuners ship with the basics, but not always everything a clean install requires. EZ LYNK, for example, may need a specific SD card for logging or a longer OBD-II extension depending on where you're mounting it. Pull up your tuner's install guide and cross-check what's in the box before you assume you're covered.

What size SD card do I need for EZ LYNK or EFI Live AutoCal V3?

Both platforms have specific SD card requirements — capacity and format matter. Using a random card from a drawer often causes read errors or logging failures down the road. Check the individual product listings for the compatible spec, or shoot us a message with your tuner model and we'll confirm what you need.

Will any OBD-II extension cable work, or does it have to be a specific one?

The cable needs to be the right length for your mount location and carry the full OBD-II pin spec without signal loss. Generic cables can work, but we sell extensions that are verified to work with the tuner platforms in our lineup. If you're doing a clean cab build, it's worth getting the right cable the first time.

What mounting options are available for dashboard-mounted tuners?

The collection covers dash mounts, windshield mounts, and A-pillar bracket solutions depending on your tuner and cab layout. Some guys prefer the tuner at eye level on the windshield; others want it flush on the dash. Check the product listings for your specific tuner and truck — fitment and mount style vary.

I'm building a shop and want to keep these parts stocked. What should I always have on hand?

At minimum: OBD-II extension cables in a couple lengths, the SD cards compatible with the tuner platforms you install most, and the mounting hardware for those same platforms. The accessories that hold up installs are almost always cables, cards, or a missing connector — having those in stock means you finish the job same day.

Do these accessories work with older tuner platforms, or just newer ones?

Depends on the accessory. OBD-II cables and mounting hardware are largely universal across tuner generations. SD cards and specific adapters are more platform-dependent. Check the individual product page for compatibility notes — we list supported tuner models so you know exactly what you're getting.

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