THE NITTY
GRITTY.
Dual Output Quick Fit SMART Harness™ | Our all-in-one wiring loom
Our all-new Plug & Play SMART Harness™ for Quick Fit installation of your driving lights. Incredible High Current 10AWG cable, negative switch compatible, waterproof switch & DTP to DT Reducers bridging the compatibility between the two connector types. Our SMART Harness™ has been designed around the consumer to simplify the installation process.
The supplied HB3 and H4 Adapters trigger your driving lights from your high beam without cutting or soldering any wiring. Simply unplug your HB3 or H4 connector at the back of your headlight's bulb, plug in our adapter, and you're done! Driving lights will only trigger from a high beam, and the switch will act solely as an isolator.
Our new SMART Harness™ has a built-in microprocessor that automatically detects whether your system is positive or negative switched, and will work right out of the box without any modification whatsoever. Toyota's, Ford Ranger, Mazda BT50 among many other popular 4x4 are notorious for being very difficult and costly to wire driving lights to high beam, our quick fit harness takes all the guesswork out of it.
It contains everything you need to get your lights connected: ON/OFF Switch, 60A Relay, 35A Fuse, ribbed cable protectors, heat shrink wrapped relay, DTP to DT Reducers.
- Featuring a total of 4.8 meters of wiring (full stretched out)
- 2.4m of cabling from Relay to Switch
- 2.0m of cabling from Driving Light connector to Relay
- 2.0m from H4 or HB3 Adapter to Relay
- Total cable length 6.4m
- 12vDC 35A Rated Fuse Kit
- 12vDC 60A Switching Relay
- Push Button ON/OFF Switch
- UV Rated Insulation
- Instruction included.
HB3 & H4 are the most common wiring connectors found in most popular makes and models. If your car does not use H4 or HB3, this wiring harness can still be used to connect to a high beam. We also sell separately H1, H9 & H7, as well as vehicle-specific adaptors for the Amarok, 200 series Landcruiser, MQ & MR Triton, Isuzu M-UX / D-Max, Ranger / Raptor PX2 & PX3 7 Holden Colorado.
Shipping & Tracking Information
All orders placed with 4x4 Offroad Centre will receive an email confirmation with your tracking number once the order has been dispatched.
If a mobile number is provided at checkout, you will also receive an SMS notification with tracking details when your order is fulfilled. (Landline numbers will not receive text updates.)
Once tracking is issued, it is the customer’s responsibility to monitor delivery progress. Any courier-related issues should be followed up directly with the freight provider. While we’re happy to assist where possible, please note that once an order leaves our warehouse, it is outside of our control.
If your order has not arrived by the estimated delivery timeframe, please email info@4x4oc.com, and we will follow up with the courier on your behalf.
We partner with multiple shipping providers to ensure the fastest and most suitable delivery method for your order. Common carriers include:
Australia Post Regular & Express
StarTrack
DHL International
Toll Ipec
TNT
Other trusted couriers as required
Some larger or bulky items may ship directly from the supplier to:
Reduce double handling
Minimise delivery times
Lower our overall carbon footprint
The courier used will be displayed on your checkout page and in your tracking notifications (email and SMS).
Important Notes:
Delivery timeframes are estimates from the date of dispatch and are based on business days only.
Delays outside our control may occasionally occur.
For any shipping enquiries, please don’t hesitate to contact our team. Our goal is to ensure a smooth, professional, and hassle-free delivery experience every time.
Pre-Order Information
Items where the “Add to Cart” button is replaced with “Pre-Order” are classified as pre-order items. When placing a pre-order, a warning box will appear outlining the terms and conditions, including the estimated delivery timeframe.
Please keep the following in mind:
Stock is not on hand – we have no control over delivery times until the stock arrives.
Patience is required – pre-ordering secures your item, but fulfilment depends on supplier availability.
High-demand items – pre-orders are the best way to lock in popular products, which often sell out before they even land.
Allow a buffer – please add 2–3 weeks to the provided ETA to account for any unforeseen delays beyond our control.
Pre-ordering ensures you don’t miss out on in-demand products, and we’ll keep you updated as soon as your order is ready to ship.
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