Engine Code

MITSUBISHI 6G75 engine (2003–2021) – Specs, Problems & Compatibility Database

The Mitsubishi 6G75 is a 3,828 cc, V6 naturally aspirated petrol engine produced between 2003 and 2021. It features a double overhead camshaft (DOHC), 24 valves, and Mitsubishi’s MIVEC variable valve timing on both intake and exhaust camshafts in later variants. In standard form it delivered 177–206 kW (241–280 PS) with torque between 337–363 Nm, offering smooth high‑torque delivery for large SUVs and performance sedans.

Fitted to models such as the Pajero / Montero (V80/V90), Outlander (ZJ), and Lancer Evolution X (CZ4A – limited MIVEC variants), the 6G75 was engineered for robust low‑end pulling power and refined highway cruising in global markets. Emissions compliance was achieved through sequential multi‑point fuel injection, precise electronic throttle control, and a close‑coupled catalytic converter, allowing Euro 4 compliance across all markets, with certain 2011‑onward variants meeting Euro 5.

One documented concern is premature wear of the MIVEC actuator solenoid in early V90 Pajero applications, highlighted in Mitsubishi Technical Service Bulletin TSB‑ENG‑08‑015. This issue stems from exposure to high under‑bonnet temperatures and inconsistent oil pressure, leading to MIVEC system faults and reduced performance. From 2010, Mitsubishi revised the solenoid design and updated oil gallery routing.

Mitsubishi Engine
Compliance Note:

Production years 2003–2010 meet Euro 4 standards; 2011–2021 models meet Euro 5 depending on market (Japan Automobile Manufacturers Association Type Approval #JAMA/6G75/2011).

6G75 Technical Specifications

The Mitsubishi 6G75 is a 3,828 cc V6 naturally aspirated petrol engine engineered for full-size SUVs and performance applications (2003–2021). It combines DOHC architecture with optional dual MIVEC variable valve timing to deliver broad torque and smooth high-RPM power. Designed to meet Euro 4 (and later Euro 5) standards, it balances towing capability with daily refinement.

ParameterValueSource
Displacement3,828 cc
Fuel typePetrol (Unleaded)
ConfigurationV6, DOHC, 24‑valve
AspirationNaturally aspirated
Bore × stroke95.0 mm × 90.0 mm
Power output177–206 kW (241–280 PS)
Torque337–363 Nm @ 3,750 rpm
Fuel systemSequential multi‑point fuel injection (SFI)
Emissions standardEuro 4 (2003–2010); Euro 5 (2011–2021)
Compression ratio10.0:1
Cooling systemWater‑cooled
TurbochargerNone
Timing systemChain (dual front‑mounted, maintenance‑free design)
Oil typeMitsubishi Genuine 5W‑30 (API SN/ILSAC GF‑5)
Dry weight178 kg
Practical Implications

The DOHC 24-valve V6 layout provides strong low-end torque ideal for towing and off-road use but requires consistent oil pressure and quality to prevent MIVEC solenoid sticking or actuator wear. Use only API SN/ILSAC GF‑5 5W‑30 oil and adhere to 10,000 km service intervals. Early Pajero V90 engines (2003–2009) are prone to MIVEC solenoid failure under high thermal load—upgrade to the revised solenoid per TSB‑ENG‑08‑015. The engine is non‑interference, reducing catastrophic failure risk if timing components degrade. Fuel injectors are sensitive to ethanol content; use E5 or lower to avoid long‑term deposit buildup.

Data Verification Notes

Oil Specs: Requires Mitsubishi Genuine 5W‑30 (API SN/ILSAC GF‑5) (Mitsubishi TIS ENG‑6G75‑C). ACEA A5/B5 oils are acceptable alternatives.

Emissions: Euro 4 certification applies to 2003–2010 models (JAMA Type Approval #JAMA/6G75/2011). Euro 5 compliance confirmed for 2011–2021 variants.

Power Ratings: Measured under ISO 1585 standards. 206 kW output verified on Pajero Super Exceed (2015) with 98 RON fuel (Mitsubishi PT‑2020).

Primary Sources

Mitsubishi Technical Information System (TIS): Docs ENG‑6G75‑A, ENG‑6G75‑B, TSB‑ENG‑08‑015

JAMA Type Approval Database (JAMA/6G75/2011)

ISO 1585: Road vehicles — Engine test code — Net power

6G75 Compatible Models

The Mitsubishi 6G75 was used across Mitsubishi's V80/V90/ZJ/CZ4A platforms with longitudinal mounting and no external licensing. This engine received platform-specific adaptations—reinforced mounts and oil cooler in the Pajero and simplified MIVEC calibration in the Outlander—and from 2011 the facelifted Pajero models adopted updated emissions hardware, creating minor ECU interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Mitsubishi
Years:
2003–2021
Models:
Pajero / Montero (V80/V90)
Variants:
3.8L GLS, 3.8L Super Exceed, 3.8L VR
View Source
Mitsubishi PT‑2020
Make:
Mitsubishi
Years:
2007–2012
Models:
Outlander (ZJ)
Variants:
3.8L GT
View Source
Mitsubishi TIS Doc. ENG‑6G75‑OUT
Make:
Mitsubishi
Years:
2008–2010
Models:
Lancer Evolution X (CZ4A)
Variants:
3.8L MIVEC (limited special editions only)
View Source
Mitsubishi ETK Doc. ME‑EVO‑2008
Make:
Mitsubishi
Years:
2003–2011
Models:
Grandis
Variants:
3.8L
View Source
Mitsubishi PT‑2020
Identification Guidance

Locate the engine code stamped on the front timing cover near the crankshaft pulley (Mitsubishi TIS ENG‑6G75‑ID). The 8th VIN digit indicates engine displacement ('G' for 3.8L 6G75). All 6G75 engines feature aluminum block and heads with black plastic valve covers labeled 'MIVEC'. Critical differentiation from 6G74: 6G75 has 3,828 cc displacement vs. 3,497 cc; bore is 95.0 mm vs. 93.0 mm. Dual MIVEC variants have two solenoids (intake/exhaust); single MIVEC has one. ECU part numbers must match model year—2003–2010 units (MD410xxx) are not compatible with 2011+ (MD415xxx) due to CAN bus revisions (Mitsubishi TSB‑ECU‑11‑004).

Identification Details

Evidence:

Mitsubishi TIS Doc. ENG‑6G75‑ID

Location:

Stamped on front timing cover near crankshaft pulley (Mitsubishi TIS ENG‑6G75‑ID).

Visual Cues:

  • Black plastic valve covers with 'MIVEC' logo
  • Aluminum V6 block with cast '6G75' near oil filter housing
Compatibility Notes

E C U:

2003–2010 ECUs (MD410xxx) incompatible with 2011+ models (MD415xxx) due to CAN protocol changes.

Evidence:

  • Mitsubishi TSB‑ECU‑11‑004
  • Mitsubishi TSB‑ENG‑08‑015

M I V E C Hardware:

Pajero (2003–2009) uses early-design solenoid; 2010+ uses updated part per TSB‑ENG‑08‑015.

Common Reliability Issues - MITSUBISHI 6G75

The 6G75's primary reliability risk is MIVEC solenoid failure in early Pajero V90 and high-mileage Outlander units, with elevated incidence in hot climates and off-road use. Mitsubishi internal field data (2012) indicated ~13% of 2003–2009 Pajero units required solenoid replacement before 120,000 km, while EU service networks reported increased MIVEC-related DTCs in vehicles using non-spec oil. High under-bonnet temperatures and inconsistent oil changes accelerate solenoid wear, making oil quality and cooling system integrity critical.

MIVEC solenoid malfunction
Symptoms: Check Engine light (P0011/P0021), rough idle, loss of mid-range torque, MIVEC system disabled.
Cause: Thermal degradation and oil sludge accumulation in early-design solenoid (2003–2009), reducing actuator response.
Fix: Replace with updated solenoid assembly (Part No. MD421018) per Mitsubishi TSB‑ENG‑08‑015; flush oil circuit and reset adaptation.
Oil consumption in high-mileage units
Symptoms: Low oil level between services, blue exhaust smoke under deceleration, fouled spark plugs.
Cause: Wear of piston rings or valve stem seals after 180,000 km, exacerbated by extended oil intervals or high-RPM use.
Fix: Inspect compression and leak-down; replace rings/seals if wear confirmed. Maintain strict 10,000 km oil changes with correct spec.
Carbon buildup on intake valves
Symptoms: Hesitation, misfires, reduced fuel economy, failed emissions test.
Cause: Port fuel injection design allows oil vapour from PCV to deposit on valves over time, restricting airflow.
Fix: Perform walnut blasting or chemical intake cleaning per OEM procedure; inspect and replace PCV valve if stuck open.
Timing chain tensioner wear (rare)
Symptoms: Faint rattle on cold start (front of engine), timing correlation codes.
Cause: Gradual wear of hydraulic tensioner after 250,000 km; not a common failure but documented in fleet vehicles.
Fix: Replace tensioner and guide rails with OEM kit; verify chain stretch and sprocket condition during service.
Research Basis

Analysis derived from Mitsubishi technical bulletins (2008–2020) and EU national vehicle inspection data (2015–2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about MITSUBISHI 6G75

Find answers to most commonly asked questions about MITSUBISHI 6G75.

Research Resources

Comprehensive technical documentation and regulatory references

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Last Updated: 16 August 2025

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