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Headlight Patch Wiring Harness Kit for Isuzu D-Max 2020-On & Mazda BT-50 MY21
SKU: BS-WH-001
Plug & Play Weatherproof Headlight Adapter Patch Wiring Harness, Corrugated Sleeve Wire Loom Fit Isuzu D-Max 2020–Current & Mazda BT-50 MY21 2021–Current Pickup LED Auxiliary Light Upgrade
Description
Plug & Play Headlight Patch Wiring Harness for Isuzu D-Max 2020-On & Mazda BT-50 MY21+
We are a professional manufacturer of automotive off-road lighting wiring adapters and wire loom assemblies. This headlight patch harness is custom-developed for third-generation Isuzu D-Max pickup trucks launched from 2020 onwards, and Mazda BT-50 MY21+ which shares the same Isuzu chassis and factory headlight connector system.
Core Product Features
- 1. Vehicle-Specific OEM Connector Matching Precision injection molded grey plugs fully match the original headlight pin layout and connector shape of 2020+ Isuzu D-Max RG chassis and MY21+ Mazda BT-50. Perfect tight lock fit, no loose contact or intermittent light failure during bumpy outback off-road driving.
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2. No-Cut Plug & Play Installation Directly plug the harness as a middle jumper between factory headlight plug and aftermarket lamp assembly. No wire splicing, crimping or permanent modification to vehicle loom. Users can revert back to factory stock headlights at any time without damage to vehicle wiring.
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3. Locked Waterproof Sealed Connector System Industrial grade 3-pin auxiliary male/female connectors with integrated rubber O-ring sealing gaskets. Effectively block water splash, mud, humidity and salt mist to prevent terminal oxidation, short circuit and lamp burnout during long-distance overlanding travel.
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4. Corrugated Protective Tubing & Automotive Grade Wire The main wire section is wrapped with black flexible corrugated sleeve: anti-abrasion, heat insulation, vibration resistance, prevents wire cracking and aging under long-term engine bay high temperature. Internal multi-strand copper core wires meet SAE automotive safety standards, stable voltage output without lamp flickering.
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5. Multi-Scenario Lighting Upgrade Solution Ideal for aftermarket LED headlight conversion, full headlight assembly replacement, DRL daytime running light modification, turn signal upgrades, and trigger wiring for bonnet/hood auxiliary LED pod lights. Greatly shorten installation time for professional auto modification workshops.
Fully Supported Direct Plug & Play
1. Isuzu D-Max (3rd Gen, RG Chassis)
Production Years: 2020, 2021, 2022, 2023, 2024, 2025, 2026
All Cab & Trims: Single Cab, Space Cab, Dual Cab, SX, LS-M, LS-U, X-Terrain
2. Mazda BT-50 MY21+ (Isuzu Shared Platform, 3rd Gen)
Production Years: 2021, 2022, 2023, 2024, 2025, 2026
Key Compatibility Note
Starting from 2020 Isuzu D-Max & MY21 Mazda BT-50, both vehicles share identical OEM headlight connector pin layout and chassis electrical system, this harness is fully interchangeable between the two models.
Factory Production Advantages
- 1. Direct factory supply, tiered volume discount for full container bulk orders.
- 2. Strict incoming inspection for wire thickness, connector waterproof performance and electrical conductivity test before shipment.
- 3. Stable monthly output over 15,000 wiring harness sets, flexible lead time for urgent replenishment orders.
- 4. Complete OEM & ODM customization: adjust wire length, wire color, connector style, printed retail packaging.




