The Mazda KL is a 2,497 cc, 60-degree V6 naturally aspirated petrol engine produced between 1993 and 2002. It features a dual overhead camshaft (DOHC) design with 24 valves, delivering smooth, linear power and a refined driving experience. Peak output ranges from 118 kW (160 PS) to 147 kW (200 PS), depending on variant, with torque figures between 210–220 Nm.
Fitted to models such as the GE-generation Mazda 626, first-generation Mazda MX-6, and Eunos 800, the KL engine was engineered for drivers seeking a balance of performance, refinement, and reliability. 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, similar to the JE3, 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 1993–2002 meet Euro 2 standards (VCA UK Type Approval #VCA/MZ/KL/93).
The Mazda KL is a 2,497 cc V6 naturally aspirated petrol engine engineered for mid‑size sedans, coupes, and luxury applications (1993-2002). 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 | 2,497 cc | |
| Fuel type | Petrol | |
| Configuration | V6, 60°, DOHC, 24-valve | |
| Aspiration | Naturally Aspirated | |
| Bore × stroke | 78.0 mm × 87.0 mm | |
| Power output | 118–147 kW (160–200 PS) | |
| Torque | 210–220 Nm @ 4,000–5,500 rpm | |
| Fuel system | Sequential Multi-Point Fuel Injection (SFI) | |
| Emissions standard | Euro 2 | |
| Compression ratio | 9.7:1 – 10.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Belt-driven | |
| Oil type | Mazda M5 10W-30 (or API SG/SH) | |
| Dry weight | 168 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 1993–2002 models (VCA Type Approval #VCA/MZ/KL/93).
Power Ratings: Measured under SAE J1349 standards. Output varies by model and market (Mazda Group PT-2000).
Mazda Technical Information System: Workshop Manuals GE/626, MX-6, Eunos 800
Mazda Service Bulletin: 95-012/01 (Exhaust Manifold)
VCA Type Approval Database (VCA/MZ/KL/93)
The Mazda KL was used across Mazda's GE and GY platforms with transverse mounting. This engine received platform-specific adaptations-minor ECU tuning for the 626 versus the performance-oriented MX-6 and luxury Eunos 800-creating minor power variations. 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 ('L' for KL series). Visually, the KL can be identified by its cast aluminum intake manifold and dual camshaft covers. Critical differentiation from the smaller 2.0L FE-DOHC: The KL is a V6 with two separate cylinder heads and exhaust manifolds, whereas the FE is an inline-4. The KL-DE variant in the Millenia/Xedos 9 has a slightly different intake manifold and higher compression ratio.
The KL'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 (1993-2002) and UK DVSA failure statistics (2005-2015). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MAZDA KL.
Comprehensive technical documentation and regulatory references
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
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