The Mazda Z engine family is an evolution of the B family. It started with 2.0 L and 2.3 L variants found in the Mazda3, Mazda Mazda6 and Ford Ranger. For 2004, Ford dropped its own Zeta Zetec engines in favor of Mazda's, naming the resulting engine the Duratec 20 and Duratec 23.

Confusingly, Mazda also sells Ford's Sigma Zetec (which is unrelated to both the Zeta and Mazda Z family) as the MZI. The MZ-CD Diesel is also unrelated to the rest of the Z family.

The Z5/ZL, Z6/ZM, and MZR are DOHC 16-valve water-cooled engines.

Z5

The 1.5 L (1489 cc, 88 hp) Z5 was used in the 1995-1998 Mazda Protegé. Bore and stroke were 78 mm and 78.4 mm respectively.

ZL

The ZL was a variant of the Z5 and marked the first application of Mazda S-VT variable valve timing technology.

Applications:

• 1999-2002 Mazda Familia

Z6/M

The 1.6 L (1598 cc) (78x83.6 mm) Z6/M was used in the 1999+ Mazda Protegé.

MZR

The versatile MZR is Mazda's latest Straight-4 engine. Development was assisted by Ford, who also sell the engine as the Duratec 23. The MZR family features a special long intake manifold for added torque, S-VT continuous variable valve timing, and a stainless steel 4:1 exhaust header .

• 1.4 L (1349 cc) (74x78.4 mm)
  • Used in the Demio/Mazda2/Mazda3
• 1.5 L (1498 cc) (78x78.4 mm)
  • Used in the Demio/Mazda2/Verisa/Axela
• 1.6 L (1598 cc) (78x83.6 mm)
  • Used in the Mazda3
• 1.8 L (1798 cc) (83x83.1 mm)
  • Ford Power Products sells this engine as the DHE-418
• 2.0 L (1999 cc) (87.5x83.1 mm)
  • Used in the Axela/Mazda3
  • Ford Power Products sells this engine as the DHE-420
• 2.3 L (2261 cc) (87.5x94 mm)
  • Used in the Axela/Mazda3/Atenza/Mazda6/Tribute/MPV
  • A turbocharged version with direct injection is used in the Mazdaspeed 6/Mazda Atenza MPS.
  • Ford Power Products sells this engine as the DHE-423

MZI

The MZI is a Ford Sigma family engine. The same engine was sold as the Zetec-SE in the Ford Fiesta and Focus.

• 1.25 L (1242 cc) (71.9x76.5 mm) - Mazda2, 75 hp (56 kW)
• 1.4 L (1388 cc) (76x76.5 mm) - Mazda2, 80 hp (60 kW)
• 1.6 L (1596 cc) (79x81.4 mm) - Mazda2, 100 hp (75 kW)

MZ-CD

The MZ-CD is a Ford/PSA engine from the Duratorq/HDi families.

• 1.4 L (1399 cc) (73.7x82 mm) - Turbocharged SOHC Diesel engine, 68 hp (51 kW)
  • Used in the Mazda2
• 1.6 L (1560 cc) (75x88.3 mm) - Turbocharged SOHC Diesel engine
  • Used in the Mazda3

See also

• Mazda engines