The Tough Dog 40mm Lift Kit transforms your Isuzu MU-X Gen 1 (2014-06/2021) with Australian-engineered suspension designed for serious touring, payload, and off-road performance. This complete 4WD lift kit combines premium foam cell shock absorbers with heavy-duty coil springs to deliver 40mm of additional ground clearance, improved articulation, and customisable load ratings for accessories and towing. Backed by Toughdog's proven Australian outback testing and full manufacturer warranty, this kit is in stock now with fast dispatch across Australia.
Browse all compatible suspension parts for your Isuzu Mu-X Gen 1 using our parts finder.
| Make | Model | Series | Years | Engine |
|---|---|---|---|---|
| Isuzu | MU-X | Gen 1 (UC) | 2014 – June 2021 | 3.0L Turbo Diesel |
Not sure if this fits your vehicle? Use our Isuzu MU-X parts finder to confirm compatibility or contact our suspension experts for personalised advice.
Selecting the correct spring rate is critical for achieving the optimal ride height and handling characteristics. When ordering, choose spring rates based on your current constant load only — this means accessories and equipment permanently fitted to your MU-X. Occasional loads such as weekend camping gear, passengers, or towing are not considered constant loads and should not influence your spring selection. Over-springing your vehicle by selecting rates that are too heavy will result in a harsh, uncomfortable ride and may cause premature wear or damage to other suspension components.
Common front constant loads include: bullbar, winch, upgraded intercooler, auxiliary lighting, and heavy-duty battery systems. Common rear constant loads include: rear bar, dual spare wheel carriers, long-range fuel tanks, drawer systems, dual battery setups, and permanently mounted water tanks or toolboxes.
Professional installation by a qualified 4WD suspension specialist is strongly recommended to ensure correct fitment, torque specifications, and safety. A full four-wheel alignment is mandatory after installing this lift kit to prevent premature tyre wear and maintain steering precision. We recommend a 500km break-in period during which spring rates will settle and shocks will bed in — minor ride height adjustments may occur during this time. For optimal suspension geometry and extended component life, consider pairing this lift with upgraded control arms to correct camber and caster angles, particularly if running larger tyres or engaging in serious off-road driving.
Toughdog is Australia's number one 4WD suspension brand, trusted by tradespeople, tourers, and off-road enthusiasts for over three decades. Every kit is engineered and tested in Australia's harshest conditions — from the red dust of the Simpson Desert to the corrugations of the Gibb River Road — ensuring real-world performance, not just laboratory results. Backed by a comprehensive manufacturer warranty and supported by a nationwide network of installers and stockists, the Toughdog suspension range delivers exceptional value, reliability, and peace of mind for adventures across Australia and beyond.
This lift kit is ideal for Isuzu MU-X owners who regularly tour remote regions, tow caravans or camper trailers, carry heavy loads of tools and equipment, or simply want improved ground clearance and off-road capability without sacrificing daily driving comfort. Tradespeople who need reliable load-carrying performance, families embarking on outback adventures, and recreational four-wheel drivers seeking better articulation and clearance will all benefit from this complete suspension upgrade. If you frequently carry variable loads or tow heavy trailers, consider adding airbag suspension to the rear for on-demand load levelling and adjustable ride height.
Upgrade your Isuzu MU-X Gen 1 with Australia's most trusted suspension brand. With Australian stock ready for fast dispatch, expert technical support, and a proven track record of outback performance, this Tough Dog 40mm lift kit delivers the capability and confidence you need for your next adventure. Explore our complete lift kit range or contact our team for personalised suspension advice tailored to your MU-X and how you use it.
This kit is specifically engineered for Isuzu MU-X Gen 1 (UC series) models manufactured between 2014 and June 2021, covering all variants including LS-M, LS-U, and LS-T with the 3.0L turbo diesel engine. The kit will not fit the later Gen 2 MU-X (RJ series) which commenced mid-2021. If you're unsure of your vehicle's build date or series, check the compliance plate or use our online parts finder tool to confirm exact fitment before ordering.
This Tough Dog kit is designed to deliver approximately 40mm (1.6 inches) of lift over factory ride height when correctly installed and loaded. Actual lift height may vary slightly depending on your selected spring rates, current accessory load, and the condition of your existing suspension components. During the initial 500km break-in period, springs will settle by 5-10mm as they compress under normal driving loads, so expect final settled height to stabilise after this period.
The kit includes two front foam cell shock absorbers, two rear foam cell shock absorbers, two front coil springs with selectable load ratings, and two rear coil springs with selectable load ratings. U-bolts, shock mounting hardware, spring seats, and upper control arms are not included and may need to be purchased separately depending on your vehicle's existing configuration. Professional installation is recommended to ensure all components are correctly fitted and torqued to manufacturer specifications.
Yes, this lift kit is engineered to handle towing loads up to your MU-X's rated towing capacity (3000kg braked). The upgraded rear coil springs provide improved load support and reduce squat under towing loads, while the premium shock absorbers deliver better damping control for improved stability and safety. For frequent heavy towing or variable loads, consider adding airbag suspension to the rear axle for on-demand load levelling and fine-tuned ride height adjustment without changing spring rates.
While not strictly mandatory for a 40mm lift, upgraded upper or lower control arms are highly recommended if you plan to fit larger tyres (32" or above), engage in regular off-road driving, or want to optimise suspension geometry for improved handling and reduced component wear. Aftermarket control arms with adjustable camber and caster settings allow your installer to correct alignment angles, reduce tyre scrub, and extend the service life of ball joints and bushings. Contact our team for specific recommendations based on your intended use.
Yes, a full four-wheel alignment is absolutely mandatory after installing any lift kit. Changing ride height alters suspension geometry, affecting camber, caster, and toe angles — all of which directly impact steering feel, tyre wear, and vehicle stability. A qualified alignment technician should adjust all settings to manufacturer specifications (or improved performance specifications if using adjustable control arms) to ensure safe handling, even tyre wear, and optimal on-road and off-road performance.
Yes, Tough Dog coil springs are available in multiple load ratings to suit different accessory configurations. When ordering, you'll select front and rear spring rates separately based on your current constant load — permanent accessories like bullbars, winches, drawer systems, and long-range tanks. It's critical to choose rates that match your actual constant load, not occasional loads like camping gear or passengers. Over-springing results in a harsh ride and potential component damage, while under-springing causes excessive sag and poor handling.
A 40mm lift generally allows fitment of tyres up to 32" diameter (265/70R17 or 265/65R18) with minimal to no trimming on the MU-X Gen 1, depending on wheel offset and driving conditions. Larger tyres (33" and above) may require additional modifications such as fender trimming, aftermarket upper control arms for improved clearance, or wheel spacers. Always test-fit and conduct full-lock steering tests both on the ground and at full compression to ensure no rubbing occurs under extreme articulation or load.
Tough Dog suspension components are backed by a comprehensive manufacturer warranty covering defects in materials and workmanship. Warranty terms vary by component type — shock absorbers typically carry a 12-month or 20,000km warranty (whichever comes first), while coil springs are often covered for longer periods. Warranty claims require proof of purchase and professional installation by a qualified technician. Check with our team or refer to the supplied warranty documentation for full terms, conditions, and claims procedures.
Absolutely — Tough Dog engineers this kit to balance off-road capability with on-road comfort and refinement. The foam cell shock absorbers are tuned to provide controlled damping without harshness, while the coil springs maintain a comfortable ride quality when correctly matched to your load. Highway stability, cornering confidence, and everyday drivability are all preserved, making this kit ideal for MU-X owners who use their vehicle as a daily driver, family hauler, and weekend adventurer. Expect a slightly firmer ride than factory, but far from uncomfortable.
Perfect Upgrade for Our Family Tourer
Been running this Tough Dog 40mm lift kit on our MU-X for about six months now, covering everything from beach tracks to high country trails with the kids and camping gear loaded up. The ride quality is genuinely better than stock - much less harsh over corrugations and the extra clearance has saved our bacon more than once on rutted tracks. Installation was straightforward and the difference in capability is night and day for weekend touring.(5)
Sorted My MU-X Out Proper
Been running this Tough Dog 40mm lift kit on the work ute for about 6 months now and it's been brilliant. Daily drives to site feel heaps better than stock, and the extra clearance has saved my bacon on dodgy tracks heading out to remote jobs. Fitment was spot on and the ride quality is honestly better loaded up with tools than the factory setup ever was.(5)
Perfect Setup for Remote Outback Work
Been running this Tough Dog 40mm lift kit on my MU-X through the Strzelecki and Birdsville tracks for the past six months and it's transformed the vehicle completely. The ride quality is remarkably smooth even when loaded up with recovery gear and long-range tanks, while the extra clearance has saved me from countless belly scrapes on the rocky sections. Installation was straightforward and everything lined up properly without drama. Worth every dollar for anyone serious about remote touring.(5)
Perfect Upgrade for Family Beach Trips
Fitted this 40mm lift kit to our MU-X about three months ago and it's been brilliant for our regular Cape York and Fraser Island adventures. The ride quality is noticeably smoother than stock, especially when loaded up with the camper trailer and all the family gear. Ground clearance has made a real difference on beach tracks and creek crossings, and the kids are much more comfortable in the back on corrugated roads now.(5)
Perfect for the daily grind and weekends
Been running this Tough Dog lift kit on my MU-X for about six months now, carting tools and materials to job sites every day. The ride quality is noticeably better than stock even with a full load, and the extra clearance has been brilliant when accessing rough sites or heading out to the high country on weekends. Dead simple fitment too, my mechanic had no dramas getting it sorted.(5)
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