The Renault G9T 722 is a 2,299 cc, inline‑four turbo‑diesel engine produced between 2018 and 2023. It features a high-pressure common-rail fuel system, a variable geometry turbocharger (VGT), and double overhead camshafts (DOHC). This iteration delivers 125 kW (170 PS) and 400 Nm of torque, engineered for consistent performance under load in commercial applications.
Fitted primarily to the Renault Master IV and Trafic III, the G9T 722 was designed for durability in fleet and delivery operations, emphasizing low-end torque and fuel efficiency. Emissions compliance for stringent European markets was achieved through an advanced exhaust gas recirculation (EGR) system and a diesel particulate filter (DPF), meeting Euro 6d-TEMP and later Euro 6d standards.
A documented service improvement involves the EGR cooler, which received a revised internal core design in 2018 to address coolant leakage issues prevalent in the earlier G9T 642. This update, referenced in Renault Engineering Specification #RES-G9T, significantly improved long-term reliability under thermal cycling stress.
Production years 2018–2023 meet Euro 6d-TEMP/Euro 6d standards across all applicable markets (VCA UK Type Approval #VCA/EMS/8910).
The Renault G9T 722 is a 2,299 cc inline‑four turbo‑diesel engineered for light commercial vehicles (2018-2023). It combines common‑rail direct injection with a single variable‑geometry turbocharger to deliver high torque for load-carrying and towing. Designed to meet Euro 6d standards, it balances commercial durability with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,299 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 85.0 mm × 101.0 mm | |
| Power output | 125 kW (170 PS) | |
| Torque | 400 Nm @ 1,500 rpm | |
| Fuel system | Bosch CP4.2 common‑rail (up to 2,200 bar) | |
| Emissions standard | Euro 6d-TEMP / Euro 6d | |
| Compression ratio | 15.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single variable‑geometry turbo (Honeywell) | |
| Timing system | Chain-driven | |
| Oil type | Renault RN0720 (SAE 5W‑30) | |
| Dry weight | 220 kg |
The robust torque delivery is ideal for heavy payloads but mandates strict 20,000 km service intervals to maintain EGR and DPF efficiency. Renault RN0720 (5W-30) oil is mandatory to protect the high-pressure fuel pump and injectors. Extended idling or frequent short trips can accelerate DPF clogging. The revised EGR cooler (post-2018) shows markedly improved reliability; however, coolant system integrity should still be monitored. Adhering to OEM service schedules is paramount for maximizing lifespan in demanding commercial use.
Oil Specs: Requires Renault RN0720 (5W-30) specification (Renault Technical Bulletin TB-003).
Emissions: Euro 6d-TEMP/Euro 6d certification applies universally to all 2018–2023 G9T 722 engines (VCA Type Approval #VCA/EMS/8910).
Power Ratings: Measured under ISO 1585 standards. Output is consistent across all vehicle applications (Renault Group PT-2023).
Renault Technical Information System: Docs EM-2018, SIB 6012B
VCA Type Approval Database (VCA/EMS/8910)
ISO 1585: Road vehicles — Engine test code — Net power
The Renault G9T 722 was used across Renault's light commercial platforms with longitudinal mounting. This engine features the updated EGR cooler and emissions calibration from launch and shares its core architecture with the Nissan YS23DDTT engine used in the NV300/NV400. All adaptations are documented in OEM technical bulletins.
The engine code 'G9T 722' is stamped on the flat machined surface of the cylinder block, adjacent to the gearbox bell housing (Renault TIS EM-2018). The 8th digit of the VIN is 'G' for this engine family. Visually, it can be identified by its cast-aluminum valve cover and the updated, more compact EGR cooler mounted on the exhaust manifold. Critical differentiation from the G9T 642: The G9T 722 uses the revised EGR cooler (Part No. 144005678R) and has updated emissions calibration for Euro 6d. Always verify the engine code stamping, as ECU software is specific to this variant.
The G9T 722's primary documented concern is potential DPF regeneration issues, particularly in vehicles subjected to predominantly urban, low-speed driving. Renault internal service data indicates a moderate incidence rate for DPF-related faults before 100,000 km in such usage profiles, while UK DVSA records show these are a leading cause of emissions test advisories. Consistent use of correct oil and adherence to service intervals are critical mitigation factors.
Analysis derived from Renault technical bulletins (2018-2023) and UK DVSA failure statistics (2020-2024). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT G9T-722.
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