Overview
Upgrade your trailer brakes with a genuine AL‑KO 10″ Off‑Road Electric Brake Magnet Kit (Part No. 339020)—designed to fit one wheel only (left or right). Featuring a
high-tech plastic-core magnet, this kit is engineered specifically for off-road conditions to reduce vibration wear and extend service life.
What’s Included
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1 × AL‑KO off-road brake magnet assembly (plastic-core)
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1 × Magnet spring
(NO clip—held temporarily by a degradable rubber band during installation)
Key Features
✅ Specialised Off‑Road Plastic-Core Design – prevents metal-on-metal wear for better durability on corrugated tracks
✅ OEM Part #339020 – genuine AL‑KO component engineered for reliable fit and performance
✅ Left and Right Side Versions Available – ensure you select LH or RH per your backing plate
✅ Inspectable Wear Element – plastic core provides visible wear allowance; replace before excessive clearance forms
✅ Fast Dispatch from QLD – clear stock status on-site with industry-leading delivery options
Technical Specifications
| Specification | Detail |
|---|---|
| Magnet Size | 10″ × 2¼″ (fits electric drum brakes) |
| Part Number | AL‑KO 339020 |
| Fitment Options | Left-hand or Right-hand only |
| Magnet Type | Off‑Road plastic-core |
| Hardware | Includes spring (clip not required) |
| Designed For | AL‑KO, Dexter or Hayes Off‑Road backing plates |
| Replacement Scope | One wheel only—sold individually |
Applications
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Ideal for off‑road caravans, camper trailers, or rugged terrain towing
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Precisely suited for AL‑KO Off‑Road brake assemblies (also fits compatible Dexter/Hayes backing plates) Durability essential for corrugated roads or vibration-prone tracks
Why This Magnet Matters
The AL‑KO off‑road magnet features a unique plastic insert that avoids rattling and surface scuffing on harsh terrain—immensely improving lifespan and braking consistency. Instead of replacing the entire backing plate, this kit offers a cost-effective and performance-friendly upgrade. The initial rubber-band hold technique ensures stability during install, while the spring remains the permanent fixture
🔧 Installation Tips
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Select the correct LH or RH version for your brake plate.
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Use a light rubber band to hold the magnet for the first few brake applications—then rely on the spring.
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Monitor magnetic core clearance regularly, and replace when core is worn below warning depth.
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Always replace magnets in matches pairs if wear is uneven.
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After install, test brake performance and ensure smooth engagement.
Related Products
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🔧 AL‑KO Off‑Road 10″ Backing Plates (Pair or Single)
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🛞 AL‑KO Off‑Road Brake Shoes for 10″ Assembly
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⚙️ Dexter / AL‑KO Brake Shoe Springs & Pins
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🧰 Installation Kits & Brake Controllers
Shipping is calculated at checkout based on your location.