Cylinder Head for Daewoo Chevrolet SsangYong Z20S Z20S1 Z20DM Engine 96440128

Product NO.

ML NO.	OEM NO.	REF NO.
MLG074	96440128 96440132

Z20S engine head replacement for Daewoo Winstorm

Product Information Cylinder Head

2.0L Diesel | DOHC / 16-Valve | Turbocharged | Common Rail (CRDi)

1. Product Overview

The Z20S, Z20S1, and Z20DM are 2.0-liter inline-4 diesel engines developed by VM Motori (Italy) and licensed for use by Daewoo, Chevrolet, and SsangYong. These engines feature a dual overhead camshaft (DOHC) design with 16 valves, turbocharging, and common rail direct injection (CRDi) systems. They are widely used in passenger vehicles and SUVs across Asia, Europe, and South America.

2. Technical Specifications

Specification	Detail
Engine Codes	Z20S / Z20S1 / Z20DM
Displacement	2.0L (1991 cc)
Configuration	Inline-4
Valvetrain	DOHC, 16-Valve
Cylinder Head Material	Aluminum Alloy
Fuel Type	Diesel
Induction	Turbocharged (with Intercooler)
Fuel System	Common Rail Direct Injection (CRDi)
Emission Standard	Euro 3 / Euro 4 / Euro 5 (varies by model)
Cooling System	Water-cooled
Timing	Timing Belt or Chain (depending on version)

3. OEM Cylinder Head Part Numbers

OEM Number	Application
96350385	Z20S / Z20S1 Cylinder Head Casting
25187841	Z20DM Complete Cylinder Head Assembly
25187769	Bare Cylinder Head for Z20DM
96350547	Valve cover & head integrated unit (select versions)

Confirm injector seat compatibility and EGR configuration
Available as bare, semi-complete, or full assembled head

4. Compatible Vehicles

Brand	Model	Years	Notes
Chevrolet	Captiva 2.0 VCDi	2006–2011	Z20S / Z20DM
Chevrolet	Cruze 2.0 Diesel	2009–2012	Z20DM
Chevrolet	Epica 2.0 VCDi	2007–2011	Z20S1
Daewoo	Winstorm	2006–2010	Z20S
SsangYong	Korando 2.0 XDi	2010–2015	Z20DM
SsangYong	Actyon / Kyron 2.0	2007–2014	Z20S1 / Z20DM

5. Product Options

Type	Includes
Bare Cylinder Head	No internals
Semi-Complete	Includes valves, springs, guides
Complete Head Assembly	Includes camshafts, rockers, valves – pre-installed

Pressure-tested coolant/oil passages
Ready for CRDi injectors and camshaft position sensor
Turbo oil/coolant feed compatible
Optional EGR-ready ports

6. Installation Guidelines

Use new head bolts (TTY) and quality head gasket
Follow torque-angle tightening as per factory spec
Check injector seat surfaces for damage or carbon
Clean oil galleries before reassembly
Confirm timing belt/chain tension and alignment
Bleed coolant and oil systems to avoid air pockets

7. Common Cylinder Head Issues & Repair Advice

Problem	Symptom	Cause	Fix
Head Gasket Failure	Coolant/oil mix, overheating	Age or poor torque	Replace gasket & check flatness
Cracks in Casting	Overheating	Cooling failure	Replace or weld (if minor)
Valve Tapping / Noise	Cam wear or hydraulic lifters	Oil starvation or poor quality oil	Replace lifters or camshaft
Injector Blow-by	Ticking, black smoke	Poor sealing or carbon	Re-seat injector, replace washer
Camshaft Scoring	Engine rattle, misfire	Oil sludge or poor maintenance	Replace camshaft + inspect journals

8. Export & Aftermarket Demand

Europe: Poland, Turkey, Romania
Asia: Philippines, Thailand, Indonesia
Middle East: Iran, Iraq, Jordan
Africa: Kenya, Egypt, Nigeria
South America: Chile, Brazil, Colombia

High demand in regions with strong Daewoo/Chevrolet legacy and diesel vehicle fleets.