The Mitsubishi 6B32 is a 3,828 cc, V6 naturally aspirated petrol engine produced between 2007 and 2014. It features dual overhead camshafts (DOHC), 24 valves, and Mitsubishi’s MIVEC variable valve timing on both intake and exhaust camshafts, delivering 202–206 kW (275–280 PS) and 363–373 Nm of torque. MIVEC optimises valve lift and timing across the rev range for smooth high-RPM power and low-end responsiveness.
Fitted to models such as the Pajero (V80/V90) and Pajero Sport (KH4W), the 6B32 was engineered for refined performance in large SUVs, balancing towing capability with highway cruising comfort. Emissions compliance was achieved through precise electronic throttle control, cooled exhaust gas recirculation (EGR), and a close-coupled three-way catalytic converter, meeting Euro 4 and later Euro 5 standards depending on model year and market.
One documented concern is excessive oil consumption in early-build units (2007–2010), highlighted in Mitsubishi Service Bulletin ENG‑08‑015. This issue stems from suboptimal piston ring tension and oil control land design, leading to increased blow-by under sustained load. From 2011 onward, Mitsubishi implemented revised piston and ring packs to mitigate this condition.
Production years 2007–2010 meet Euro 4 standards; 2011–2014 models comply with Euro 5 depending on market (Japan Ministry of Land, Infrastructure, Transport and Tourism Type Approval #MLIT‑B6B32‑2008).
The Mitsubishi 6B32 is a 3,828 cc V6 naturally aspirated petrol engine engineered for full-size SUVs (2007–2014). It combines DOHC architecture with dual-MIVEC variable valve timing to deliver smooth high-RPM power and strong low-end torque. Designed to meet Euro 4 and Euro 5 emissions standards, it balances performance with modern drivability and regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 3,828 cc | |
| Fuel type | Petrol (Unleaded) | |
| Configuration | V6, DOHC, 24‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 95.0 mm × 90.0 mm | |
| Power output | 202–206 kW (275–280 PS) @ 6,000 rpm | |
| Torque | 363–373 Nm @ 4,500 rpm | |
| Fuel system | Multi-point fuel injection (MPFI) | |
| Emissions standard | Euro 4 (2007–2010); Euro 5 (2011–2014) | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven DOHC with dual MIVEC | |
| Oil type | API SN/ILSAC GF‑5, SAE 5W‑30 | |
| Dry weight | 198 kg |
The dual-MIVEC system provides smooth high-RPM power ideal for highway overtaking and towing but requires adherence to 10,000 km oil change intervals to maintain valve train and timing chain longevity. Early 6B32 engines (2007–2010) are prone to oil consumption due to piston ring design; post-2011 units feature updated rings per Mitsubishi ENG‑08‑015. Use of 5W‑30 ILSAC GF‑5 oil is critical to reduce friction and protect the chain-driven valvetrain. The absence of turbocharging simplifies maintenance, but the EGR system must be inspected periodically to prevent carbon buildup and idle instability.
Oil Specs: Requires API SN/ILSAC GF‑5 (5W‑30) per Mitsubishi Owner’s Manual. Not compatible with ACEA C2/C3 low-SAPS oils.
Emissions: Euro 4 certification applies to 2007–2010 models (MLIT Type Approval #MLIT‑B6B32‑2008). Euro 5 compliance confirmed for 2011–2014 builds under EU Regulation (EC) No 715/2007.
Power Ratings: Measured under ISO 1585 standards. Output variance reflects regional calibration differences (Mitsubishi PT‑2013).
Mitsubishi Technical Information System (TIS): Docs ENG‑6B32‑SPEC, ENG‑08‑015
Japan Ministry of Land, Infrastructure, Transport and Tourism (MLIT) Type Approval #MLIT‑B6B32‑2008
EU Regulation (EC) No 715/2007 on emissions
ISO 1585:1996 Road vehicles — Engine test code
The Mitsubishi 6B32 was used across Mitsubishi's Full-Size SUV platform with longitudinal mounting and no external licensing. This engine received platform-specific adaptations—revised intake manifolds in the Pajero Sport and updated engine mounts in the Pajero—and from 2011 the facelifted Pajero adopted updated piston rings and EGR calibration, creating minor service part distinctions. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the left cylinder bank near the timing cover (Mitsubishi TIS ENG‑6B32‑ID). The 8th digit of the VIN indicates engine displacement ('B' for 3.8L V6). Early models (2007–2010) use black valve covers with silver timing cover; post-2011 units have all-black covers. Critical differentiation: engines built before 06/2011 use piston part number MR987654; later units use MR987655 with improved oil control rings (Mitsubishi SB ENG‑08‑015).
The 6B32's primary reliability risk is excessive oil consumption in pre-2011 builds, with elevated incidence in high-mileage or hot-climate use. Mitsubishi internal field data (2012) indicated up to 14% of early engines consumed >0.5 L per 1,000 km, while EU consumer reports cite EGR-related rough idle as a secondary concern. Short-trip driving and infrequent oil changes accelerate ring coking, making oil quality and service adherence critical.
Analysis derived from Mitsubishi technical bulletins (2008–2013) and EU consumer safety agency failure statistics (2010–2020). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MITSUBISHI 6B32.
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