Engine Mazda K8-DE

The Mazda K8-DE 1.8-liter V6 gasoline engine was assembled by the company from 1991 to 1998 and was installed only on the European and American modifications of the popular MX-3 model. A version of this engine with the K8-ZE index with 145 hp was installed on cars for the Japanese market.

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

The engine was installed on:

  • Mazda MX-3 EC in 1991 – 1998.


Production years 1991-1998
Displacement, cc 1845
Fuel system distributed injection
Power output, hp 130 – 135
Torque output, Nm 155 – 160
Cylinder block aluminum V6
Block head aluminum 24v
Cylinder bore, mm 75
Piston stroke, mm 69.6
Compression ratio 9.2
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-3 1995)
— city
— highway
— combined
Engine lifespan, km ~290 000
Weight, kg 165 (with attachments)

Disadvantages of the Mazda K8-DE engine

  • All-aluminum motor is afraid of overheating, keep an eye on the cooling system;
  • Closer to 150,000 km, oil consumption may already appear, up to a liter per 1000 km;
  • Also, at high mileage, grease leaks from under the valve covers are often found;
  • The timing belt resource is about 100 thousand km, but when it breaks, the valves almost never bend;
  • Due to low-quality oil, hydraulic lifters can knock even up to 50,000 km.

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