TJM NORTHERN BEACHES IS SYDNEY'S PREMIUM 4WD SPECIALIST, TRANSFORMING OFF-ROAD VEHICLES SINCE 1973.
We deliver expert suspension upgrades, professional GVM modifications, and premium touring setups in Sydney. Our certified technicians service Toyota, Ford, Isuzu, Nissan, KIA, RAM, emerging brands like INEOS and BYD Shark 6, and many more.
- ✓ 50+ years proven expertise with ADR-compliant modifications
- ✓ Professional installations protecting your manufacturer’s warranty
- ✓ Sydney's leading specialists in every 4WD brand
- ✓ Australia-wide shipping & comprehensive support
TJM NORTHERN BEACHES – The first step for your next adventure.
Call us today at 1300 856 888 for expert advice
CATEGORIES
COMPLETE 4WD SOLUTIONS UNDER ONE ROOF

Transform handling and load capacity. From $2,500 fitted. Discover Upgrades
Legally increase carrying capacity by 300-1000kg. From $4,000 certified. Discover Upgrades
Steel and alloy options for maximum safety. From $2,000 fitted. Discover Upgrades
Maximise space for all your gear. From $1,000 installed. Discover Upgrades
Professional-grade equipment for serious adventures. Discover Upgrades
CarPlay, Android Auto, sound deadening and premium sound systems. Discover Upgrades
Call 1300 856 888 today for your 4WD Solutions Assessment.
All installations include professional alignment and ADR compliance — book 2-3 weeks ahead.
WHAT MAKES US DIFFERENT
EXPERT INSTALLATION & CUSTOM BUILDS
We engineer complete solutions. Every installation meets ADR standards with certified technicians ensuring peak performance and backed by comprehensive warranties.
UNMATCHED LOCAL KNOWLEDGE
Our team knows Australian conditions inside out. We recommend the right setup for your specific adventures and local terrain.
COMPLETE 4WD SERVICE
From initial consultation through ongoing maintenance, we're your long-term 4WD partner. One call handles everything you need.
WHY CHOOSE TJM NORTHERN BEACHES
We don't just sell accessories – we live and breathe 4WDing. Unlike other retailers, we specialise exclusively in 4WD modifications, performance and premium accessories. Our team understands Australia’s terrain and builds vehicles tough enough for Australia's harshest conditions. At TJM Northern Beaches, we bring decades of engineering excellence to every project.
OUR BEST 4WD TRIP YET
- FRASER ISLAND
CUSTOMER REVIEWS
Big shout out to the boys at TJM Northern Beaches. A great job for my suspension upgrade. Knowledgeable, greate communication, workmanship and efficiency. Very happy with the result.
Glen and his team are very professional and knowledgeable I had heaps of questions around GVM upgrades and BTC upgrades on my LC200 series in order to tow a large caravan. I was given accurate informative advice which allowed me to make an informed decision on the way I wanted to progress. Work was performed in a timely manner. Overall a very good experience and I would use them again and recommend to friends and family.
The team just completed a heap of 12v work on my new car after doing work on my previous one. The workmanship as usual was first class and I can't recommend them highly enough. Given my Ineos is a brand new car to market they took the time and care to ensure it was completed professionally and exactly to my requirements.
What legends. Thank you to Jason and his team. We recently bought a brand new car with tow package including brake controller. Going away with van today, van had no brakes, had to leave it on the roadside as controller was faulty. Rang TJM Brookvale, Jason and his team tested and replaced brake controller all within 2 hours. Awesome service—TJM went above and beyond and such nice people. Rate 100 stars/5 stars.
For all 4x4 advice, products and service, look no further than TJM Northern Beaches in Brookvale. Jason has built a fantastic team of professionals who have both in-depth technical knowledge and experience and demonstrate some of the best customer service skills I’ve seen. They beat their competitors in this area hands down. Jason was fantastic with helping me design and specify my Y62 Patrol build earlier this year and was very honest about what they could do / supply and things that I would be better sourcing from other suppliers. Throughout the build, he provided solutions, not problems particularly regarding a pre rego GVM upgrade. He was great in communicating progress and working with Nissan to ensure all the work was completed prior to registration. A big shout out also to Andy and Ed in the workshop who were very patient and helpful in providing me with an operational handover once it was complete. They have also provided great after sales service. I’ll definitely be going back to TJM Brookvale for all my 4x4 needs and highly recommend them – no need to look further. Well done team!
Great work from Bayer at TJM to sort us out with a couple of sets of drawers and new canopy on the ranger. Great service and would highly recommend for any of your 4x4 needs!
Glen and the guys did an amazing job installing a towbar and wiring kit on my vehicle. Well priced and they turned it around in a few hours on pretty short notice. Highly recommend.
Boys at TJM did an outstanding job transforming a pre rego 2024 76 series V8 into an offroad weapon. Jmacx coil conversion, gvm upgrade, bar work, lighting, long distance diesel, water tanks etc. They were very invested in the project from start to finish. On time and on budget. Blake on the desk, Andy supervising the work and Bayar on all of the electronics. Very happy with the end product. Just completed the Oombulgurri track in it.
