The Tough Dog Suspension Lift Kit for Isuzu MU-X (2014-06/2021) delivers Australia's most trusted 4WD suspension technology in one complete package — featuring foam cell damping, raised coils with multiple load ratings, and heavy-duty leaf springs engineered for touring, towing and daily driving. Designed and tested in Australia for real outback conditions, this kit provides improved ground clearance, enhanced load capacity and superior ride quality whether you're commuting, touring or towing. In stock now with fast Australia-wide dispatch and backed by comprehensive manufacturer warranty.
Browse all compatible suspension parts for your Isuzu Mu-X using our parts finder.
| Make | Model | Series | Years | Engine |
|---|---|---|---|---|
| Isuzu | MU-X | UC (First Generation) | 2014 - June 2021 | 3.0L Turbo Diesel |
Not sure if this fits your vehicle or need to confirm your build date? Contact our suspension experts for fitment confirmation or check our FAQ page for more information. You can also browse all suspension parts for the Isuzu MU-X using our parts finder.
Selecting the correct spring rate is critical for achieving optimal ride quality, load capacity and component longevity. Choose your spring rating based on the constant weight you carry permanently fitted to your vehicle — not occasional loads or towing weight. Common front accessories include bull bars (30-50kg), winches (30-60kg), auxiliary batteries, upgraded intercoolers and driving lights. Rear constant loads include canopies (60-100kg), drawer systems (40-80kg), dual spare wheels (60kg), long-range fuel tanks (empty weight 20-40kg), and permanently mounted roof-top tents. Occasional loads like camping gear, passengers, or water tanks should not influence your spring selection — choosing springs that are too heavy for your actual constant load will result in harsh ride quality, reduced suspension travel and potential damage to bushes and shock absorbers.
This kit is designed for professional installation or experienced DIY mechanics with appropriate workshop facilities, spring compressors, and torque wrenches. A full four-wheel alignment is mandatory after installation to ensure correct castor, camber and toe settings, preventing premature tyre wear and maintaining safe handling characteristics. All suspension components require a 500km break-in period during which springs will settle and dampers will bed-in — final ride height is achieved after this period. Depending on your lift height and driving requirements, you may benefit from pairing this kit with upgraded control arms to correct front suspension geometry and maximize articulation off-road.
Tough Dog has earned its reputation as Australia's most trusted suspension brand through decades of real-world testing across the harshest conditions our country offers — from Outback corrugations to Cape York mud and Nullarbor highway touring. Every Tough Dog kit is engineered specifically for Australian vehicles and conditions, backed by comprehensive manufacturer warranty and supported by a nationwide network of workshops and 4WD specialists. Whether you're a tradie carrying tools and equipment daily, a tourer heading off the beaten track, or a family towing your caravan around Australia, Tough Dog delivers proven reliability and performance. View the full Toughdog range to explore other suspension solutions for your vehicle.
This kit is ideal for Isuzu MU-X owners who need genuine all-purpose capability — daily commuters wanting improved ride comfort and ground clearance, touring families preparing for lap-of-Australia adventures, and caravan towers requiring enhanced load support and towing stability. If you regularly carry heavy or variable loads in the rear, consider supplementing this kit with airbag suspension for on-demand load leveling without compromising unladen ride quality. Tradespeople who carry tools, equipment and materials will appreciate the constant load spring options that provide consistent support day in, day out.
Ready to transform your Isuzu MU-X with Australia's most trusted suspension technology? This complete Tough Dog lift kit is in stock now with fast dispatch Australia-wide, backed by expert technical support and comprehensive warranty coverage. Whether you're upgrading for touring, towing, or daily driving comfort, our team can help you select the right spring rates and recommend complementary upgrades. Browse our full lift kit range or contact us today to discuss your specific requirements and vehicle setup.
This kit is specifically engineered for Isuzu MU-X UC series (first generation) built from 2014 through to June 2021. It suits all variants including LS-M, LS-U, and LS-T models equipped with the 3.0L turbo diesel engine. If your MU-X was built after June 2021 (RJ series/second generation facelift), this kit will not fit and you'll need a different part number. You can verify your exact build date on the compliance plate in the driver's door jamb, or contact our team with your VIN for confirmation.
This kit delivers approximately 40-50mm of lift at both front and rear, measured from factory standard height. Final installed height depends on your selected spring rates, constant accessory weight, and vehicle usage patterns. Vehicles with heavier front accessories like steel bull bars and winches may sit slightly lower than lightly accessorized vehicles. After the 500km break-in period, springs will settle 5-10mm as they bed in, so initial height may appear slightly higher immediately after installation.
This comprehensive kit includes front Tough Dog foam cell struts, front raised coil springs (with spring rate options), rear heavy-duty leaf springs (with optional constant load upgrades), rear foam cell shock absorbers, rear spring u-bolt hardware kit, and rear spring polyurethane bush kit. Everything needed for a complete front and rear suspension upgrade is included except upper control arms (if required), brake line extensions, and wheel alignment. All fitment hardware and installation instructions are supplied with the kit.
Yes, this kit significantly improves towing performance compared to factory suspension. The upgraded rear leaf springs reduce squat under tow ball load, maintaining proper vehicle geometry and headlight aim when hitched. You can upgrade to constant 300kg or 500kg rated rear springs if you regularly tow heavy caravans or trailers at maximum capacity. The foam cell shocks provide superior damping control and fade resistance during extended highway towing. For variable towing loads, consider supplementing with airbag suspension for on-demand load leveling without compromising unladen ride quality.
Upper control arms are not typically required for a 40-50mm lift on the Isuzu MU-X, as this modest lift height maintains acceptable suspension geometry and CV angle. However, upgrading to adjustable upper control arms allows you to fine-tune castor angle for improved on-road steering feel and off-road capability, plus they provide additional CV clearance if you plan to run larger tyres. If you frequently drive off-road with maximum articulation or plan to fit 32-inch plus tyres, aftermarket control arms are recommended to optimize geometry and maximize wheel travel.
Yes, a full four-wheel alignment is absolutely mandatory after installing any lift kit. Raising your MU-X suspension will alter front castor, camber and toe settings from factory specifications, which can cause premature and uneven tyre wear, wandering steering, and compromised handling safety. A qualified alignment shop should set your suspension to the manufacturer's lifted specifications or performance-oriented settings depending on your primary use case. Always have alignment performed after the initial test drive, and consider a recheck after the 500km break-in period once springs have fully settled.
Select spring rates based only on the constant weight permanently fitted to your vehicle — never select springs based on occasional loads or maximum towing capacity. For the front, weigh accessories like bull bars, winches, upgraded intercoolers and auxiliary batteries. For the rear, include canopies, drawer systems, dual spare wheels, long-range tanks (empty weight), and roof-top tents. Comfort/Medium springs suit lightly accessorized vehicles under 50kg front or rear. Constant load springs suit 50-150kg constant accessories. Rear 300kg and 500kg constant ratings are for serious permanent loads like full drawer systems, multiple batteries, and heavy canopies — selecting springs that are too heavy results in harsh ride quality.
With the 40-50mm lift provided by this kit, you can typically fit up to 265/70R17 or 265/65R18 tyres (approximately 31.5-32 inches diameter) without scrubbing at full lock or compression, assuming standard offset wheels. Going to 275/65R18 may require minor trimming of plastic inner guards depending on your wheel offset and driving style. For aggressive off-road use with maximum articulation, slight trimming may be required even with 265-width tyres. Always test fit new tyres and wheels, turning full lock both directions and compressing suspension fully before committing to off-road driving to identify any contact points.
Tough Dog suspension components are backed by the manufacturer's comprehensive warranty covering defects in materials and workmanship. Warranty periods vary by component type — shock absorbers and struts typically carry 12 months or 20,000km warranty, while springs are covered for 3 years or 60,000km. Warranty coverage requires professional installation by a qualified workshop, proper wheel alignment post-installation, and use within the component's specified load ratings. Wear items, cosmetic damage, and failures due to incorrect spring selection, overloading beyond rated capacity, or collision damage are not covered under warranty terms.
Absolutely — Tough Dog suspension is engineered to deliver excellent on-road comfort and manners for daily driving, commuting and highway touring while providing enhanced capability when you head off-road. The foam cell damping technology provides controlled, comfortable ride quality on sealed roads without the harshness associated with budget lift kits. Selecting the correct spring rate for your actual constant load is critical for achieving optimal daily driving comfort — springs that are too heavy will feel harsh and uncomfortable. When properly matched to your vehicle's accessory weight, this kit delivers ride quality equal to or better than worn factory suspension while providing improved ground clearance and load capacity.
Perfect Upgrade for Our Family Adventures
Fitted this Tough Dog lift kit to our MU-X about three months ago and it's been brilliant for our monthly camping trips down the coast and out to the high country. The ride quality is noticeably better than stock, especially when we're loaded up with the camper trailer and all the kids' gear. Really happy with how it's handled everything from beach tracks to rocky fire trails without any dramas.(5)
Perfect Upgrade for Our Family MU-X
Had this Tough Dog lift kit fitted to our 2017 MU-X about three months ago and it's been brilliant for our weekend trips down to the Victorian High Country. The ride quality is noticeably better than stock, especially when loaded up with camping gear and the kids in the back. Really happy with how it's handled the rough tracks around Dargo and still comfortable on the highway drive home.(5)
Perfect Setup for Remote Outback Work
Been running this Tough Dog lift kit on my MU-X for about 18 months now, covering everything from the Canning Stock Route to the Cape. The ride quality loaded up with recovery gear and long-range tanks is genuinely impressive—none of that harsh jittery feeling you get with cheaper setups. Fitment was spot-on and the increased clearance has already saved my diff more than once on the rougher Simpson crossings.(5)
Perfect Upgrade for Our Family Camping Rig
Been running this Tough Dog lift kit on our MU-X for about six months now, covering everything from beach tracks up the coast to some pretty rough inland trails. The ride quality is noticeably better than stock, especially when we're loaded up with camping gear and the kids' bikes on the back. Really happy with how it handles corrugations now, and the extra clearance has already saved our bacon a couple of times on rutted tracks.(5)
Perfect Upgrade for Our Family Adventures
Finally got this Tough Dog lift kit fitted to our MU-X and the difference is night and day. We've done three camping trips since the install, including some pretty rough tracks out near the Flinders, and the ride quality is so much better than the sagging factory suspension we had before. The kids even commented on how much smoother it feels in the back, which says a lot. Well worth the investment for anyone doing regular touring.(5)
Add your favourites to cart
Log into or create your Afterpay account, with instant approval decision
Your purchase will be split into 4 payments, payable every 2 weeks
All you need to apply is to have a debit or credit card, to be over 18 years of age, and to be a resident of country offering Afterpay
Late fees and additional eligibility criteria apply. The first payment may be due at the time of purchase
For complete terms visit afterpay.com/terms
