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Diode Dynamics

Diode Dynamics Universal D-Switch Kit

4.7 store rating · 583 reviews
SKU: DIODD8840

Universal fit Not vehicle-specific

Fitment notes
$660.99
Only 1 left. Ships in 1–2 business days.
  • Authorized dealerGenuine Diode Dynamics parts, sourced direct
  • 30-day returnsSee the return policy
  • Diesel techs on the line908-223-9744, call or text
  • Secure checkoutAmerican Express Apple Pay Diners ClubDiscoverGoogle Pay Mastercard PayPal

Overview Upgrade your vehicles setup with the Diode Dynamics D-Switch! This advanced 8-channel switch panel gives you full control over any 12V accessory with four 30A and four 15A outputs, delivering serious power with unrivaled customization. Dedicated Backlight Channel. Unlike other 8-button controllers, the D-Switch includes a 9th button for the dedicated backlight bus bar, providing eight extra outputs for accent lighting. Activate all backlit accessories with a single press, freeing up main outputs for other functions. Dynamic Channel Assignment. Unlike one-to-one switch panels, the D-Switch allows multiple output channels per button, giving you complete control over your setup. You can also assign multiple functions of an output to different buttons, such as configuring one button for flashing and another for full power of the same light. Fast, Responsive Bluetooth App. Control and configure settings using the Bluetooth app for iOS and Android, which delivers instant response, no lag, and seamless programming. OEM Signal Integration. Three trigger wires are included to automatically activate your outputs with vehicle signals such as high beams, fog lights, or reverse lights. The ignition wire powers the controller when the vehicle starts, shutting it down automatically when turned off. The Night Mode wire adjusts output settings and controller brightness for low-light conditions. Solid-State, Durable Design. The D-Switch is built to withstand the toughest conditions, with a solid-state design and an IP67-rated aluminum heatsink for superior heat dissipation. No mechanical relays to wear out or physical fuses to replace! Whether for off-road lighting or other 12V accessories, the D-Switch offers unmatched power, customization, and reliability.

  • Three trigger wires for OEM-like control through vehicle signals.
  • Fast responsive Bluetooth App - no lagging or loading screens!
  • Solid-state fully-encapsulated design for extreme durability.
  • Dedicated backlight channel to control your accent lighting.
  • Group and control multiple outputs with a single button.

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Good to know

Questions, answered straight.

If it is not here, call or text the counter. Real people, real answers.

Fitment

  • Will this fit my truck?

    The Fits section at the top of the page lists the manufacturer's applications for this exact part. If your year, make and model is not there, or you are not sure, text us a photo of what you are replacing with your year and engine and we will confirm it before you order.

  • What if I order the wrong part?

    Call or text us before it ships and we will swap it. After delivery you have 30 days to return it in new, uninstalled condition. The return policy has the restocking details.

Shipping

  • When will it ship?

    In-stock parts usually ship within 1 to 2 business days from warehouses across the USA. The stock line under the options tells you the status of the part you are looking at. Large items ship LTL freight and we call to schedule delivery.

  • Why did I only get part of my order?

    We ship from multiple warehouses, so an order with several items can arrive in more than one box. Tracking for each shipment is emailed as it goes out. Full details in the shipping policy.

Returns and warranty

  • What is the return policy?

    30 days from delivery, in new and uninstalled condition, with a restocking fee. Everything is spelled out in the Returns & Refund Policy.

  • How do warranty claims work?

    We are an authorized dealer, so the manufacturer's warranty applies to every part we sell. Call or text us with your order number and we handle the claim with the brand for you.

Paying

  • Can I pay over time?

    Yes. Shop Pay installments are offered at checkout on qualifying orders, and the monthly estimate shows right under the price.

  • What is a core deposit?

    Some remanufactured parts, like injectors and turbos, carry a refundable core deposit. It is shown on the product page when it applies and refunded when your old part comes back to us.

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Why buy here

A diesel shop that sells parts, not a website that sells boxes.

Every part on this site is one our own techs can stand behind.

  • We run what we sell

    A working diesel repair and fabrication shop in Nazareth, PA. These are the parts our techs install every week.

  • Real techs on the phone

    Call or text 908-223-9744 and you get a diesel tech, not a script.

  • Authorized dealer

    Genuine parts straight from the manufacturer, with the factory warranty behind them.

  • Fast from stock

    Most in-stock parts ship in 1 to 2 business days from warehouses across the USA.

The shop floor
The shop floor
In-house fabrication
In-house fabrication
Engine work
Engine work

Authorized dealer for 140+ brands

All brands
  • 7+ Years in business
  • 6+ Shop technicians
  • 30,000+ In-stock SKUs
  • 25+ Trucks given away
FSD shop interior - trucks on lifts The shop floor, Nazareth, PA

Full Send Diesel, Nazareth, PA

A team of diesel people, not a call center.

Full Send Diesel is a shop full of techs, builders and parts people in Nazareth, Pennsylvania. When you call or text, you reach someone who works on these trucks and knows the parts.

Not sure what you need? Send a photo of what you are replacing with your year and engine. We will point you to the right part, confirm it is in stock, and get it moving.

Call 908-223-9744 Text us Email

Mon–Fri, 8am–4pm ET. After hours, text or email and we answer first thing in the morning.

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