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 requiring durability, towing capability, and fuel efficiency in demanding conditions. Emissions compliance for its era is achieved through a diesel particulate filter (DPF), selective catalytic reduction (SCR) with AdBlue, and exhaust gas recirculation (EGR), meeting Euro 5 and equivalent global standards.
One documented concern is crystallization of the AdBlue dosing unit in cold climates, which can lead to SCR system malfunction and reduced engine power. This issue, addressed in Toyota Service Bulletin DIE-033-17, is linked to infrequent vehicle use or low AdBlue fluid levels. Toyota recommends maintaining adequate AdBlue levels and periodic system checks in cold environments.
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 VNT turbo provides strong, lag-free torque ideal for towing and off-road use but demands strict adherence to 10,000 km oil change intervals using ACEA C2 5W-30 oil to protect the turbo and aftertreatment systems. The SCR system requires regular AdBlue top-ups; running the tank dry will trigger a power reduction. The chain-driven design is robust, but the EGR cooler is prone to internal leaks. Using high-quality, low-ash oil is critical to prevent DPF clogging.
Oil Specs: Requires ACEA C2 specification oil (Toyota Repair Manual RM2WW-15). Critical for DPF and SCR system longevity.
Emissions: Certification applies to all models manufactured 2015-Present (Toyota Emissions Certification TEC-15-2WW).
Power Ratings: Measured under JIS D 1001 standards. Output figures are net ratings for production vehicles (Toyota Group PT-2020).
Toyota Repair Manual (RM2WW-15)
Toyota Electronic Parts Catalogue (EPC-2WW-15)
Toyota Service Bulletin Database (DIE-033-17)
Toyota Group Product Technical Data (PT-2020)
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.
Locate the engine code stamped on the flat machined surface on the left side of the engine block, near the injection pump (Toyota Repair Manual RM2WW-15). The 2WW can be visually identified by its DOHC valve cover, aluminium block, and the presence of an AdBlue dosing unit and SCR catalyst in the exhaust system. Critical differentiation from the 1GD-FTV: The 2WW is a 2.4L engine (vs. 2.8L for 1GD) and produces 150 PS (vs. 177-204 PS for 1GD). The engine harness and ECU calibration are also specific.
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.
Find answers to most commonly asked questions about TOYOTA 2WW.
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