Engine Mazda KL-ZE

The Mazda KL-ZE 2.5-liter V6 engine was produced at the Japanese plant from 1992 to 2002 and installed in local versions of such popular models as Efini, Eunos or MX-6. This motor differed from the KL-DE in an increased compression ratio and a different intake manifold.

The K-engine family includes: K8‑DE, K8‑ZE, KF‑DE, KF‑ZE, KJ‑ZEM, KL‑DE, KL‑G4.

The engine was installed on:

  • Mazda Capella GW in 1997 – 2002;
  • Mazda Cronos GE in 1992 – 1997;
  • Mazda Efini MS-6 GE in 1992 – 1994;
  • Mazda Efini MS-8 MB in 1992 – 1998;
  • Mazda Eunos 800 TA in 1993 – 1998;
  • Mazda MX-6 GE in 1992 – 1997.


Production years 1992-2002
Displacement, cc 2497
Fuel system distributed injection
Power output, hp 200
Torque output, Nm 224
Cylinder block aluminum V6
Block head aluminum 24v
Cylinder bore, mm 84.5
Piston stroke, mm 74.2
Compression ratio 10.0
Features DOHC, VRIS
Hydraulic lifters yes
Timing drive belt
Phase regulator no
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 4.0
Fuel type petrol
Euro standards EURO 3
Fuel consumption, L/100 km (for Mazda MX-6 1995)
— city
— highway
— combined
Engine lifespan, km ~400 000
Weight, kg 176 (with attachments)

Disadvantages of the Mazda KL-ZE engine

  • The engines of this series are considered quite reliable;
  • Watch the cooling system, the aluminum block of the engine is very afraid of overheating;
  • On runs over 100 thousand km, oil often oozes from under the valve covers;
  • The timing belt resource is about 80,000 km, however, when it breaks, the valve usually does not bend;
  • Hydraulic lifters do not tolerate cheap lubrication and can knock even up to 50,000 km.

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