--- product_id: 427026080 title: "H4 Headlamp Wiring Harness Relay System (130/100W)" brand: "hella" price: "¥9524" currency: JPY in_stock: true reviews_count: 5 category: "Hella" url: https://www.desertcart.jp/products/427026080-h4-headlamp-wiring-harness-relay-system-130-100w store_origin: JP region: Japan --- # Supports up to 80A max current 2-meter pre-wired plug & play harness High heat ceramic plugs for thermal resistance H4 Headlamp Wiring Harness Relay System (130/100W) **Brand:** hella **Price:** ¥9524 **Availability:** ✅ In Stock ## Summary > ⚡ Illuminate smarter, drive safer—never settle for dim again! ## Quick Answers - **What is this?** H4 Headlamp Wiring Harness Relay System (130/100W) by hella - **How much does it cost?** ¥9524 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/427026080-h4-headlamp-wiring-harness-relay-system-130-100w) ## Best For - hella enthusiasts ## Why This Product - Trusted hella brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built for Safety:** High heat ceramic connectors and built-in fuse prevent overheating - • **Dual Relay Control:** Separate relays for high and low beams for precise lighting control - • **Power Up Your Ride:** Upgrade halogen bulbs up to 130W without dimming or flicker - • **Universal H4 Fitment:** Compatible with H4/9003, H6024, and 6014 headlights for versatile use - • **Plug & Play Simplicity:** No wire cutting or modifications needed—easy install in minutes ## Overview The Hella H4 Headlamp Wiring Harness Relay System is a premium 12V upgrade solution designed to power halogen bulbs up to 130W with zero flicker or dimming. Featuring high heat ceramic plugs, a built-in fuse, and dual relays for separate high/low beam control, this 2-meter pre-wired harness ensures a seamless plug-and-play installation without modifying stock wiring. Compatible with multiple H4 headlight types, it enhances lighting performance and safety for four-wheelers. ## Description Specifications Condition Condition 100% Brand new Package includes One set of headlight relay wiring harness with high heat ceramic plugs color black Votage 12V Max Input Current MAX 80A Cable Length 2M Weight 380g Features Upgrade to higher wattage for halogen bulbs, fix any trouble of inches headlight. Pre-Wired for Plug and Play. No need to modify the stock wires at all. Dual High/Low beam bring more convenience when controlling the light. Bring more safety with the high heat ceramic plugs and the built-in fuse This harness fixes Dim headlights Back feeding power Flickering headlights Malfunctioning headlights when using hi/low beams Overloading the headlight switch Overheating plugs Fitment H4/9003 Conversions, H6024 and 6014 Headlights Please Read All Description and Fitment Before Ordering the Product. Review: ممتاز Review: Wiring length is sufficient for biggest of the cars. Installation is perfect, one even may not know at once that an external relay circuit has been added. It is dual relay circuit where two seperate relays control low and high beams respectively. I installed in Mahindra Thar 2022 to power 90/100 W Philips H4 blue vision halogen bulbs and the result is highly satisfactory. Can be used for 110/130 W halogens. ## Features - Vehicle Compatability: Four Wheeler Lamps-H4 fitment - Made from high performance material with higher thermal resistance ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00KNX33FS | | Best Sellers Rank | #48,416 in Automotive ( See Top 100 in Automotive ) #110 in Car Electrical Wiring Harnesses | | Brand Name | Hella | | Cable Type | Flat Ribbon | | Connector Type | Ceramic | | Customer Reviews | 4.2 4.2 out of 5 stars (375) | | Included Components | 1 Pc | | Item Dimensions | 30 x 20 x 41 millimeters | | Item Type Name | Wiring Harness Relay System | | Item Weight | 380 Grams | | Manufacturer | Hella | | Material Type | Metal | | Model | 329.317-011 | | Part Number | 329.317-011 | | Unit Count | 1 Count | ## Product Details - **Brand:** Hella - **Connector type:** Ceramic - **Item dimensions L x W x H:** 30 x 20 x 41 millimeters - **Item weight:** 380 Grams - **Material:** Metal ## Images ![H4 Headlamp Wiring Harness Relay System (130/100W) - Image 1](https://m.media-amazon.com/images/I/61jgBKyUHIL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ Review *by K***D on 2 January 2026* ممتاز ### ⭐⭐⭐⭐⭐ Review *by K***. on 8 September 2022* Wiring length is sufficient for biggest of the cars. Installation is perfect, one even may not know at once that an external relay circuit has been added. It is dual relay circuit where two seperate relays control low and high beams respectively. I installed in Mahindra Thar 2022 to power 90/100 W Philips H4 blue vision halogen bulbs and the result is highly satisfactory. Can be used for 110/130 W halogens. ### ⭐⭐⭐⭐ Review *by S***H on 28 August 2021* Thick wires, separate fuses and relays for each bulb, easy installation. Improved brightness even with stock bulbs. Installed myself. Bought zipties to fasten the wiring from hardware shop and applied tape on the old bulb holder to prevent it from water. Feels much better while driving in the rain than before ## Frequently Bought Together - Hella H4 Headlamp Wiring Harness Relay System (130/100W) - Osram H4 All Season Rallye 62204ALL for Car Halogen Headlight Bulb (12V, 100/90W, Yellow) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/427026080-h4-headlamp-wiring-harness-relay-system-130-100w](https://www.desertcart.jp/products/427026080-h4-headlamp-wiring-harness-relay-system-130-100w) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-12*