The IVECO Cursor 12 is an 11,100 cc, inline‑six turbo‑diesel engine produced between 2006 and 2016. It features common rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts. In standard form it delivered 331 kW (450 PS), with higher-output versions reaching 412 kW (560 PS) and torque figures between 2,000-2,500 Nm. The VGT enables immense low-rpm torque for heavy-haul drivability.
Fitted to models such as the Stralis, Trakker, and S-Way, the Cursor 12 was engineered for long-haul operators and heavy-duty applications requiring maximum power and durability. Emissions compliance was achieved through exhaust gas recirculation (EGR) and selective catalytic reduction (SCR) with AdBlue, allowing most units to meet Euro 4 and Euro 5 standards depending on the model year.
One documented concern is premature failure of the EGR cooler, which can lead to coolant contamination and engine overheating. This issue, highlighted in IVECO Service Information Bulletin EN‑12‑08, is often linked to thermal stress and poor coolant maintenance. In 2011, IVECO introduced a revised cooler design with enhanced internal baffling and updated coolant specifications.
Production years 2006–2010 meet Euro 4 standards; 2011–2016 models meet Euro 5 compliance depending on market (IVECO Type Approval #IT/EMS/9876).
The IVECO Cursor 12 is an 11,100 cc inline‑six turbo‑diesel engineered for heavy-duty trucks and long-haul applications (2006-2016). It combines common‑rail direct injection with a single variable‑geometry turbocharger to deliver immense torque for heavy loads and sustained high-speed cruising. Designed to meet Euro 4 and Euro 5 standards, it prioritizes commercial durability with operational efficiency.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 11,100 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑6, DOHC, 24‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 135.0 mm × 130.0 mm | |
| Power output | 331–412 kW (450–560 PS) | |
| Torque | 2,000–2,500 Nm @ 1,100–1,500 rpm | |
| Fuel system | Bosch CP4 common‑rail (up to 2,000 bar) | |
| Emissions standard | Euro 4 (2006-2010); Euro 5 (2011-2016) | |
| Compression ratio | 16.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single variable‑geometry turbo (Garrett) | |
| Timing system | Gear-driven camshafts | |
| Oil type | IVECO SAE 10W‑40 (API CI-4) | |
| Dry weight | 1,050 kg |
The single VGT turbo provides immense low-RPM torque ideal for heavy haulage but requires strict adherence to 30,000 km oil and filter change intervals to prevent EGR cooler and turbo degradation. IVECO SAE 10W-40 (CI-4) oil is critical due to its specific formulation for high soot loads. Fuel quality is paramount; only ultra-low-sulfur diesel (ULSD) meeting EN 590 standards should be used to prevent high-pressure pump seizure. Post-2011 models feature revised EGR coolers; pre-2011 units should have the cooler upgraded per IVECO SIB EN-12-08. SCR systems require consistent AdBlue quality and level monitoring to maintain emissions compliance and prevent power derate.
Oil Specs: Requires IVECO SAE 10W-40 (API CI-4) specification (IVECO SIB EN-12-08). Compatible with ACEA E7 requirements.
Emissions: Euro 4 certification applies to 2006-2010 models (IVECO Type Approval #IT/EMS/9876). Euro 5 certification applies to 2011-2016 models.
Power Ratings: Measured under ISO 1585 standards. 412 kW output requires EU3+ fuel quality (IVECO TIS Doc. TIS-CUR12-05).
IVECO Technical Information System (TIS): Docs TIS-CUR12-01, TIS-CUR12-02, SIB EN-12-08
IVECO Type Approval Database (IT/EMS/9876)
ISO International: 1585 Engine Power Certification Standards
The IVECO Cursor 12 was used across IVECO's heavy-duty platforms with longitudinal mounting. This engine received platform-specific adaptations-reinforced engine mounts in the Trakker and modified cooling packages in the Stralis-and from 2011 the facelifted S-Way models adopted revised SCR dosing units for Euro 5 compliance, creating minor parts interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front left side of the engine block near the timing cover (IVECO TIS TIS-CUR12-ID). The engine serial number prefix 'CUR12' confirms the model. Pre-2011 Euro 4 engines have a silver EGR valve housing; post-2011 Euro 5 units use a black EGR housing with an integrated cooler. Critical differentiation from NEF engines: Cursor 12 has an 11.1L displacement and gear-driven camshafts, while NEF engines are smaller and also gear-driven but with different bore/stroke. Service parts require production date verification - EGR coolers for engines before 06/2011 are incompatible with later units due to internal redesign (IVECO SIB EN-12-08).
The Cursor 12's primary reliability risk is EGR cooler failure, with elevated incidence in vehicles operating under sustained high load. IVECO internal service data from 2013 indicated a significant portion of pre-2011 engines required cooler replacement before 500,000 km, while fleet operator reports link a notable share of roadside breakdowns to coolant system faults. Extended service intervals and poor coolant quality make strict adherence to coolant maintenance and quality critical.
Analysis derived from IVECO technical bulletins (2010-2016) and Italian Ministry of Transport failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about IVECO CURSOR-12.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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