2021 — 2024
6.2L Supercharged HEMI V8 (Hellcat)
Petrol
While driving at low speeds on a smooth road, listen closely for any unusual metallic whining or grinding from the engine bay that doesn't scale naturally with the supercharger boost, as it's common to consider the longevity of the supercharger bearings in these high-output units.
Check this by cycling through the various Drive Modes (Sport, Baja, Rock) while observing the dashboard; if the suspension feels excessively bouncy or a 'Service Suspension' message appears, you might eventually need to budget for attention to the Bilstein Black Hawk e2 active damping system.
During a cold start, stand near the front wheel arches and listen for a rhythmic ticking sound that disappears once the engine warms up, which in vehicles of this type can sometimes indicate that the exhaust manifold bolts have expanded or sheared.
While stationary, spend several minutes navigating the Uconnect 12-inch touchscreen and performance pages; if the screen flickers or responds slowly to touch, it may be worth considering a software update or hardware inspection to ensure the infotainment module is performing as expected.
Standard synthetic oil change and inspection of the heavy-duty air filtration system, especially if the vehicle has seen dusty NZ backroads.
Consider a comprehensive inspection of the transfer case and differential fluids, as the TRX's high torque output can lead to earlier fluid shear.
Recommended interval for replacing the 16 spark plugs (two per cylinder) and inspecting the supercharger drive belt for any signs of glazing or wear.
A great time to perform a full cooling system flush and a detailed health check of the active bypass valves in the exhaust system.
Verify the use of high-quality full synthetic 0W-40 oil to protect the Hemi's internal components.
Inspect the dual-path air intake system for debris to maintain optimal supercharger efficiency.
Check the condition of the 35-inch Goodyear Wrangler Territory tyres for uneven tread wear, common in heavy, high-performance trucks.
Test the battery health, as the extensive onboard electronics and remote-start features can place high demand on the charging system.
Examine the underbody protection and skid plates for any signs of heavy off-road contact that might require preventative rust treatment.
Estimated repair costs if issues arise
Future Budget Planning: Depending on the car's history and whether it has been jumped or used heavily off-road, you might eventually need to budget for individual shock replacements to maintain that signature TRX ride quality.
Future Budget Planning: In cars of this weight and performance level, the braking system works hard. If the pads and rotors nearing the end of their service life, this is the estimated cost for a full high-performance refresh in NZ.
Future Budget Planning: To keep the 6.2L Hellcat engine delivering its full 702hp, it's common to consider replacing the heavy-duty drive belt and tensioner as a preventative measure to avoid slippage.
Future Budget Planning: While not a repair, if you are planning long NZ road trips, it is helpful to budget for the TRX's appetite for 98 Octane fuel, as these engines are designed for premium performance.
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Disclaimer: This report is generated with the assistance of AI analysis based on verified automotive data. While we strive for 100% accuracy, enthusiasts should always conduct physical inspections and consult service records. View Full Disclaimer