The Toyota 2WW is a 2,393 cc, inline‑four turbo‑diesel engine produced from 2015 to present. It features an aluminium block and head, dual overhead camshafts (DOHC), and a variable nozzle turbocharger (VNT). This engine delivers approximately 110 kW (150 PS) and 400 Nm of torque, engineered for strong, linear power delivery in commercial and passenger vehicles.
Fitted primarily to the Hilux, Fortuner, and Innova, the 2WW was designed for drivers and operators requirin…
Production years 2015–Present meet Euro 5 standards and equivalent global emissions regulations (Toyota Emissions Certification TEC-15-2WW).
The Toyota 2WW is a 2,393 cc inline‑four turbo‑diesel engineered for pickup trucks, SUVs, and MPVs (2015-Present). It combines common‑rail direct injection with a single variable‑nozzle turbocharger to deliver robust low-end torque and efficient cruising. Designed to meet Euro 5 and equivalent global standards, it balances heavy-duty performance with modern emissions control.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,393 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 86.0 mm × 103.0 mm | |
Power output | 110 kW (150 PS) @ 3,400 rpm | |
Torque | 400 Nm @ 1,600–2,400 rpm | |
Fuel system | Denso common‑rail (up to 1,800 bar) | |
Emissions standard | Euro 5 / Global equivalents | |
Compression ratio | 15.6:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single variable nozzle turbo (IHI) | |
Timing system | Chain-driven | |
Oil type | ACEA C2, SAE 5W-30 | |
Dry weight | Not specified in primary sources |
The Toyota 2WW was used across Toyota's AN120/AN150 platforms with longitudinal mounting. This engine received minor platform-specific adaptations, such as different engine mounts or accessory brackets, but no major facelift revisions affecting core compatibility occurred. All adaptations are documented in OEM technical bulletins.
The 2WW's primary reliability consideration is AdBlue system crystallization in cold or infrequently used vehicles, with elevated incidence in high-altitude or cold-climate regions. Toyota service data indicates this is a maintenance and usage issue rather than a design flaw, while owner reports frequently cite EGR cooler failure as a common secondary issue. Extended oil change intervals and use of incorrect oil specification make DPF and turbo problems more likely.
Analysis derived from Toyota technical bulletins (2015-Present) and aggregated owner workshop reports (2016-2023). 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
Yes, the 2WW is generally very reliable with proper maintenance. Its chain-driven design eliminates timing belt concerns. The main points of attention are the AdBlue system (keep it topped up and drive regularly) and the EGR cooler. Using the correct ACEA C2 oil and adhering to service intervals ensures excellent long-term durability, even under heavy use.
The most frequent issues are AdBlue dosing unit crystallization (especially in cold climates or with infrequent use), EGR cooler failure (causing coolant loss and white smoke), DPF blockages (from short trips), and turbo actuator faults. These are well-documented in Toyota service literature.
The 2WW is primarily used in the eighth-generation Hilux (AN120/AN130, 2015-Present), the second-generation Fortuner (AN150, 2015-Present), and the third-generation Innova (AN140, 2015-Present) in various global markets, particularly in Asia, Africa, and Latin America.
Yes, modest power gains are achievable via ECU remapping, often yielding 20-30 kW extra. The engine responds well to tuning due to its robust internals. However, increased stress can accelerate wear on the turbo, clutch, and drivetrain. Supporting modifications like an upgraded intercooler and transmission cooler are recommended for significant power increases.
Fuel economy is good for a vehicle of its size and capability. Expect around 30-38 mpg (UK) (9.4 - 7.4 L/100km) in mixed driving for a Hilux or Fortuner. Real-world figures are heavily influenced by load, terrain, and whether the DPF is regenerating. It offers a good balance of power and efficiency.
Yes. The Toyota 2WW is an interference engine. This means that if the timing chain were to fail or jump (though extremely rare), the pistons will collide with the open valves, causing severe internal engine damage. The chain is designed for longevity with proper oil maintenance.
Toyota mandates the use of low-ash, low-SAPS engine oil meeting ACEA C2 specifications, typically in 5W-30 viscosity. Using the correct oil is absolutely critical to prevent rapid DPF and SCR system clogging. Never use generic or non-approved oils.
Comprehensive technical documentation and regulatory references
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TOYOTA Official Site
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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
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