2019 — 2026
6.4L V8 Hemi (ESG)
Petrol
Listen closely to the engine bay during a cold start and while idling for any distinct metallic ticking sounds, and feel for vibrations when transitioning between V8 and V4 modes. | Note: The 6.4L Hemi is prone to lifter rollers seizing and chewing the camshaft (known as the 'Hemi Tick'). This is often exacerbated by the Multi-Displacement System (MDS) and long idle times.
Test steering response at both low speeds and highway speeds. Feel for any excessive play, binding, or tracking issues on typical high-camber New Zealand regional roads. | Note: Since these vehicles are converted to Right-Hand Drive (RHD) locally, the quality of the steering conversion components, steering box relocation, and welds must be closely inspected.
On startup, listen for a loud blowing or ticking noise from the rear of the engine bay/wheel wells that gradually quietens down as the engine warms up. | Note: The rear exhaust manifold bolts on the Hemi V8 are notorious for warping and snapping due to thermal expansion, resulting in exhaust leaks.
Execute multiple low-speed rolling stops and acceleration cycles to check for harsh shifts, clunks, or hesitation from the 8HP75 transmission. | Note: The ZF-derived 8-speed automatic is generally robust but can suffer from rough shifting or premature wear if the adaptation values are incorrect or if it has been used for heavy towing without fluid servicing.
Perform first major inspection of the RHD steering conversion linkages, inspect front suspension joints, rotate the heavy-duty LT tires, and change engine oil and filter using high-spec full synthetic oil.
Replace all 16 spark plugs (dual-plug setup), replace the automatic transmission fluid and integrated pan/filter, and service the transfer case and front/rear differential fluids (especially if used for towing).
Flush and replace the engine coolant, inspect the water pump for signs of shaft play or weeping, check the accessory belt tensioner, and perform a comprehensive structural integrity check on the RHD conversion steering shaft.
Use only high-quality 0W-40 full synthetic oil meeting Chrysler MS-12633 specifications to ensure proper MDS solenoid operation and lifter lubrication.
Regularly inspect the cabin water seals, specifically around the high-mount third brake light on the back of the cab, as leaks can damage expensive rear-seat electronics.
Ensure the front driveshaft slip yoke and steering linkage grease nipples (where applicable on conversion setups) are greased at every service.
Monitor and maintain the dual-battery setup and alternator health to prevent voltage drops that trigger electronic gremlins in the Uconnect infotainment system.
Strictly adhere to the factory wheel nut torque specifications (minimum 130 ft-lbs / 176 Nm) due to the heavy payload capacity and stress on the 8-lug hubs.
Estimated repair costs if issues arise
If the 'Hemi Tick' is ignored and a lifter roller fails, it destroys the camshaft lobes, requiring a highly labor-intensive engine teardown and parts replacement.
Custom steering conversion components are highly specialized. If the steering box or custom linkages fail, parts must be sourced from specialist local converters.
Requires drilling out broken bolts from the aluminum cylinder heads. Replacing both sides with upgraded headers or heavy-duty studs is highly recommended to prevent recurrence.
The 6.4L V8 Hemi utilizes two spark plugs per cylinder. Due to tight clearances in RHD configurations, labor costs are significantly higher than standard V8s.
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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