Tough Dog 40mm Suspension Lift Kit – Isuzu MU-X (2018–2021) | Advanced 4x4

Tough Dog Isuzu MU-X (2018–2021) Complete 40mm Suspension Lift Kit

The Tough Dog Isuzu MU-X (2018–2021) 40mm Suspension Kit is the perfect solution for owners looking to eliminate the “soft” factory feel and the common nose-dive under braking. The MU-X features a rear coil-spring setup that is highly susceptible to sagging under a full family load or a heavy caravan — often hitting the bump stops before you’ve even reached your destination. This kit restores ride height, delivers a far more planted and stable feel on the highway, and provides the ground clearance needed for off-road adventures.

Featuring 41mm Bore Foam Cell Shock technology, this system is built to withstand the heat of South African overlanding — ensuring consistent, fade-free performance on long stretches of corrugated dirt roads and gravel highways.

---

🔧 Kit Components & Technical Specs

• Lift Height: Approximately 40mm
• Front Shocks: 2x 41mm Bore Foam Cell Shock Absorbers (optional: 9-stage adjustable units)
• Rear Shocks: 2x 41mm Bore Foam Cell Shock Absorbers (optional: 9-stage adjustable units)
• Front Springs: Heavy-duty Coil Springs — available for No Bar, Steel Bullbar, or Winch setups
• Rear Springs: Coil Springs — Comfort or Constant Load options (ideal for drawer systems and towing)
• Full Hardware Kit: All necessary bushes and alignment correction components
• Approx. Shipping Weight: 38kg – 46kg
• Package Dimensions (L×W×H): 900mm × 450mm × 250mm
• SKU: TD-MUX-18-KT (configuration dependent)

---

🚗 Why Upgrade Your Isuzu MU-X?

The Isuzu MU-X is a legendary family tourer — but its factory suspension is tuned primarily for unladen city comfort. Add a towbar, a full load of passengers and luggage, or a caravan, and the rear suspension often hits the bump stops before you’ve reached the open road. The Tough Dog kit ensures your MU-X remains level, safe, and comfortable even when pushed to its maximum GVM.

• ✅ 40mm lift — restored ride height and improved ground clearance for off-road use
• ✅ Eliminates nose-dive — firmer front spring rates improve braking composure and driver confidence
• ✅ Prevents rear sag & bump stop contact — load-rated rear coil options handle full passenger and towing loads
• ✅ More planted highway feel — reduced body roll and improved stability at speed
• ✅ Foam Cell shock technology — consistent, fade-free damping on extended corrugated drives
• ✅ Optional 9-stage adjustable shocks — ideal for MU-X owners who switch between city daily driving and heavy weekend towing
• ✅ Bolt-on fitment — engineered specifically for the 2018–2021 MU-X platform

---

🛡️ Warranty & Fitment Requirements

This kit includes a 4-Year / Unlimited Kilometre Recreational Warranty — activated only upon professional installation.

• Approved Fitment: Advanced 4x4 Branch in Strand, any authorised Tough Dog fitment centre, or an RMI-accredited workshop
• Warranty Integrity: Valid only when fitted by a professional facility. Fitment invoice must include the vehicle’s odometer reading at time of installation
• Price Excludes: Fitment and wheel alignment. Contact us to book your installation at our Strand branch

---

⭐ Why Choose Tough Dog?

Tough Dog is a recognised Second Stage Manufacturer (SSM), with components certified to handle increased Gross Vehicle Mass (GVM) without compromising roadworthiness or legal compliance. Their MU-X kit is application-specific — calibrated for the 2018–2021 platform’s coil-sprung rear geometry and weight distribution — ensuring a precise, safe, and long-lasting upgrade that keeps your MU-X at its best.

At Advanced 4x4, we stock the full Tough Dog MU-X range and can advise on the correct spring load rating, optional 9-stage adjustable shock upgrade, and fitment bookings at our Strand RMI workshop.

⏳ Lead Time: Please allow 14 business days for production/sourcing if stock is not immediately available.