HP Tuners RTD 4 - Blank
HP Tuners RTD 4 - Blank is backordered and will ship as soon as it is back in stock.
Confirm vehicle fitment
Confirm vehicle fitment
Confirm fitment before ordering. Match the year, make, model, trim, engine, drivetrain and selected options shown on this page. If any detail is unclear, search your exact vehicle or contact us before checkout.
Shipping expectations
Shipping expectations
Availability and processing time can vary by manufacturer. Available shipping choices and charges appear at checkout. Tracking is emailed after shipment. Oversized, special-order and supplier-shipped items can require additional processing time.
Returns and cancellations
Returns and cancellations
Please review eligibility before purchase. Installed, used, electronic, custom, special-order and clearance items may have return restrictions. Contact us promptly if you need to change or cancel an order.
What’s included
What’s included
The product description and selected variant determine what is included. Items shown in lifestyle or installation photos are not included unless they are specifically listed in the description.
HP Tuners RTD 4 - Blank is backordered and will ship as soon as it is back in stock.
Buy with confidence
Verify fitment, selected options, availability and included components before checkout. Secure payment options and order confirmation are provided at checkout.
Description
Description
The HP Tuners RTD4 is the next generation of Remote Tuning Devices, built for seamless wireless tuning, diagnostics, and datalogging. Designed specifically for professional tuner workflows, the RTD4 works hand-in-hand with the HP Tuners Tune Delivery Network (TDN) to deliver Dieselr’s custom calibrations directly to your vehicle — no laptop required.
Key Features:
-
Supports 300+ Vehicle Controllers – Compatible with the latest HP Tuners-supported platforms, including CAN and VPP protocols.
-
Wireless Tuning via TDN App – Flash tunes, send datalogs, and receive updates right from your iOS or Android device.
-
Diagnostics Anywhere – Read and clear DTCs on the go.
-
Faster Transfer Speeds – Built-in Wi-Fi hardware (enabled with future firmware update) for rapid file delivery and logging.
-
Secure Workflow – Customers cannot access VCM Editor, ensuring calibration integrity and tuner IP protection.
-
Fully Compatible with VCM Scanner – For complete diagnostics and logging functionality.
How It Works:
-
Read your vehicle’s data using the RTD4.
-
Send files to Dieselr’s tuning team via the free TDN app.
-
Receive your custom calibration.
-
Flash directly from your smartphone.
Why Choose the RTD4 from Dieselr?
We don’t just sell you the device — we connect you to our tuning network for precise, dyno-tested calibrations built for real-world drivability and performance. Whether you’re on the track, trail, or highway, the RTD4 gives you professional-grade tuning power in your pocket.
Note: Base price is for the RTD4 device only. HP Tuners adapter cables, credits, and tuning are sold separately. See Dieselr’s tuning section to bundle with your specific vehicle.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Product features
Use this section to highlight specific product features to your customers.
Product comparison grid
Add content here to explain a bit about the range of products on offer and which ones may be most suitable for your customers.





