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 fl…
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 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 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.
The most common questions about engine codes, what they mean, how to find them and how this database works
The G9T 722 is generally reliable for commercial use, benefiting from the revised EGR cooler that addressed the main weakness of its predecessor. Its longevity is heavily dependent on maintenance, particularly regarding the DPF and using the correct RN0720 oil. With proper care, these engines can reliably exceed 250,000 km in fleet service.
The most frequent issues are DPF clogging (especially with urban driving), turbo actuator failures, EGR valve carbon buildup, and injector seal leaks. These are well-documented in Renault and Nissan service bulletins for the Master IV, Trafic III, NV300, and NV400 from the 2018-2023 model years.
The G9T 722 was used in the Renault Master IV (2018-2023) and Trafic III (2018-2023), badged specifically as the dCi 170. It was also used by Nissan in the NV300 and NV400 (2018-2023) as the 2.3 dCi 170, sharing the same updated engine architecture and emissions calibration.
Yes, ECU remapping is possible and can safely increase power by 20-30 kW and torque by 50-70 Nm. The engine's internals are robust, but supporting modifications like an upgraded intercooler and ensuring the DPF can handle the increased soot load are recommended. Tuning should be performed by a specialist.
Fuel economy varies by vehicle and load. In a Renault Trafic, expect 7.8-9.2 L/100km (30-36 mpg UK) combined. In a heavier Master van, figures are typically 9.5-11.5 L/100km (25-30 mpg UK). Real-world consumption is highly dependent on payload, route type, and adherence to DPF regeneration cycles.
Yes. The G9T 722 is an interference engine. If the timing chain fails or skips, the pistons will collide with the open valves, causing catastrophic internal damage. While the chain is designed for the engine's lifespan, any unusual rattling noise should be investigated immediately by a professional.
Renault mandates the use of RN0720 specification oil, typically a 5W-30 synthetic. This is non-negotiable, as the correct oil is critical for protecting the high-pressure fuel pump, turbocharger, and ensuring the DPF functions correctly by minimizing ash content. Never use an oil that does not meet the RN0720 standard.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with RENAULT or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
RENAULT Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialRENAULT documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed”.
All external links open in new tabs. Please verify current availability of resources.