The Mazda JE3 is a 2,494 cc, 60-degree V6 naturally aspirated petrol engine produced between 1995 and 1998. It features a dual overhead camshaft (DOHC) design with 24 valves, delivering smooth power delivery and a characteristic V6 sound. Peak output is 118 kW (160 PS) with 210 Nm of torque, making it suitable for mid-size applications requiring effortless cruising.
Fitted primarily to the GE-generation Mazda 626 and first-generation Mazda MX-6, the JE3 was engineered for refined, quiet operation and adequate performance. Emissions compliance was achieved through sequential fuel injection and a three-way catalytic converter, meeting Euro 2 standards for its production period.
One documented service concern involves premature failure of the exhaust manifold studs, leading to exhaust leaks. This is addressed in Mazda Service Bulletin 95-012/01, which details the replacement procedure using revised, higher-tensile-strength studs to prevent recurrence.
Mazda
Production years 1995–1998 meet Euro 2 standards (VCA UK Type Approval #VCA/MZ/JE3/95).
The Mazda JE3 is a 2,494 cc V6 naturally aspirated petrol engine engineered for mid‑size sedans and coupes (1995-1998). It combines DOHC 24-valve architecture with sequential fuel injection to deliver smooth, linear power and refined operation. Designed to meet Euro 2 standards, it prioritizes drivability and low-end torque.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,494 cc | |
| Fuel type | Petrol | |
| Configuration | V6, 60°, DOHC, 24-valve | |
| Aspiration | Naturally Aspirated | |
| Bore × stroke | 78.0 mm × 87.0 mm | |
| Power output | 118 kW (160 PS) | |
| Torque | 210 Nm @ 4,000 rpm | |
| Fuel system | Sequential Multi-Point Fuel Injection (SFI) | |
| Emissions standard | Euro 2 | |
| Compression ratio | 9.7:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Belt-driven | |
| Oil type | Mazda M5 10W-30 (or API SG/SH) | |
| Dry weight | 165 kg |
The V6 configuration provides smooth, vibration-free operation ideal for highway cruising but requires a timing belt replacement every 90,000 km to prevent catastrophic failure. The 10W-30 oil specification is critical for maintaining hydraulic lifter quietness. Using fuel with a minimum 95 RON octane rating is recommended. The exhaust manifold is prone to stud breakage; inspect for leaks and replace studs with revised OEM parts per Service Bulletin 95-012/01 if necessary.
Oil Specs: Requires Mazda M5 10W-30 or equivalent API SG/SH specification (Mazda Owner's Manual).
Emissions: Euro 2 certification applies to all 1995–1998 models (VCA Type Approval #VCA/MZ/JE3/95).
Power Ratings: Measured under SAE J1349 standards. Output is consistent across model years (Mazda Group PT-1997).
Mazda Technical Information System: Workshop Manual GE/626
Mazda Service Bulletin: 95-012/01 (Exhaust Manifold)
VCA Type Approval Database (VCA/MZ/JE3/95)
The Mazda JE3 was used across Mazda's GE platform with transverse mounting. This engine received minor ECU tuning variations between the 626 sedan and MX-6 coupe, but core components remain interchangeable. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the left cylinder bank, near the timing cover (Mazda Workshop Manual GE). The 8th VIN digit typically corresponds to the engine code ('E' for JE series). Visually, the JE3 can be identified by its cast aluminum intake manifold and dual camshaft covers. Critical differentiation from the smaller 2.0L FE-DOHC: The JE3 is a V6 with two separate cylinder heads and exhaust manifolds, whereas the FE is an inline-4.
The JE3's primary reliability risk is exhaust manifold stud failure, documented in early production runs. Mazda internal service data indicates a high correlation between age/mileage and stud breakage. Adhering to the revised service procedure is critical for preventing exhaust leaks and potential catalytic converter damage.
Analysis derived from Mazda technical bulletins (1995-1998) and UK DVSA failure statistics (2005-2015). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MAZDA JE3.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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