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Mitsubishi 4G18 16V Complete Cylinder Head MD344154
Mitsubishi 4G18 16V Complete Cylinder Head MD344154 - Image 2
Mitsubishi 4G18 16V Complete Cylinder Head MD344154 - Image 3
Mitsubishi 4G18 16V Complete Cylinder Head MD344154 - Image 4
Mitsubishi 4G18 16V Complete Cylinder Head MD344154 - Image 5
Mitsubishi 4G18 16V Complete Cylinder Head MD344154 - Image 6
Mitsubishi 4G18 16V Complete Cylinder Head MD344154 - Image 7

Mitsubishi 4G18 16V Complete Cylinder Head MD344154

Brand new 1.6L 4G18 cylinder head assembly for Mitsubishi Lancer, Space Star, Pajero IO and Proton Waja, supplied with valves and camshaft pre-installed.

Manufactured to OEM specifications with an aluminium alloy casting, SOHC 16-valve architecture and hydraulic lifters. Pressure-tested and flatness-checked, ready to accept your existing manifolds, injectors and ancillaries. 12-month warranty and worldwide shipping available.

  • Engine Code: 4G18 
  • Displacement: 1.6 L 
  • Configuration: Inline 4-cylinder, SOHC 16-valve (4 valves per cylinder), Petrol (multi-point injection, hydraulic lifters, timing belt)
  • Fuel Type: Petrol / Gasoline
  • Condition: New – Cylinder Head Assembly (Valves & Camshaft Pre-Installed — confirm stock)
  • OEM: MITSUBISHI MD344154, MD344160, 22100-42700 (verify against your original casting before ordering)
  • Warranty: 12 months
  • Compatible models: Mitsubishi Lancer (CS, Cedia, Classic), Space Star (DG), Pajero IO / Montero IO, Proton Waja, BYD F3, Hafei Saima, Geely Emgrand X7 / EC7 — confirm via OEM number and engine code
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Description

Mitsubishi 4G18 Cylinder Head Assembly – Lancer / Space Star / Pajero IO / Proton Waja / BYD F3

This Mitsubishi 4G18 cylinder head assembly is a brand new, factory-fresh replacement for the 1.6-litre SOHC petrol engine used across the Lancer, Space Star, Pajero IO and Proton Waja ranges, and in Chinese licence-built applications. It is supplied with valves and camshaft fitted according to your confirmed stock configuration — the OEM reference is catalogued as a complete “HEAD ASSY, ENG CYLIND”, but bare castings are also sold under the same reference family, so confirm your stock physically before ordering.

What’s Included – Fitted to the Head (Confirmed Configuration Only)

  • Complete aluminium cylinder head casting — pressure-tested and flatness-checked
  • 16 valves — intake and exhaust, heat-resistant (4 per cylinder) — if your stock is a complete assembly; bare castings do not include valves
  • Valve springs, spring seats and retainers — if valves are fitted
  • Valve stem seals and valve guides — fitted
  • Camshaft — SOHC, 16-valve profile — only if your stock is a complete assembly; bare castings do not include the camshaft
  • Hydraulic lifters / lash adjusters — pre-installed — if camshaft is fitted
  • Camshaft bearing caps — torqued to specification
  • Core plugs and oil gallery plugs — installed

What you transfer from your original head: camshaft and bearing caps (if not included in your stock), valve cover, timing belt kit (belt, tensioner and idler), head bolts (always fit new stretch bolts — these are torque-to-yield), head gasket and remaining gaskets, fuel injectors, spark plugs, ignition coils, intake manifold, exhaust manifold and any sensors or brackets mounted to the head. Head bolt torque: tighten in sequence to 74 Nm, fully loosen in reverse order, then 20 Nm followed by two 90° angular stages — confirm against your workshop manual for the specific build year.

Vehicle Compatibility — Model and Chassis Detail

The Short Description lists the basic model range. The fitment below is the model and chassis-code level detail needed to confirm the correct casting before ordering. The 4G18 head is shared across Mitsubishi, Proton and Chinese licence-built platforms, but emission equipment and intake manifold design differ between markets — match the OE reference and chassis code to your original head.

  • Mitsubishi Lancer — CS, Cedia, Lancer Classic series, 2000–2010; 1.6 16V
  • Mitsubishi Space Star — DG series, 1998–2005; 1.6 16V
  • Mitsubishi Pajero IO / Montero IO — 1.6 16V, select years and markets
  • Proton Waja — 1.6, 2000–2011 (Mitsubishi 4G18 engine)
  • BYD F3 — 1.6, licence-built 4G18, select years
  • Hafei Saima — 1.6, licence-built 4G18, select years
  • Geely Emgrand X7 / EC7 — 1.8 CVVT applications using the 4G18-derived head, confirm before ordering

OEM Part Number Cross-Reference

  • MITSUBISHI: MD344154, MD344160, 22100-42700
  • Engine code cross-reference: 4G18 (Orion 4G1 family)
  • Related casting references: MD344154 is the primary reference; MD344160 is used on some Lancer and Space Star applications

Why Buy This 4G18 Cylinder Head Assembly

  • 100% brand new — not reconditioned or repaired
  • Pressure-tested and vacuum-tested for leaks and porosity before dispatch
  • Flatness-checked to OEM tolerance
  • Available in complete (with camshaft) and bare configurations — confirm your stock before ordering
  • Correct 4G18 casting for Lancer, Space Star, Pajero IO, Proton Waja and licence-built applications
  • Fast global shipping to port or door

Packaging & Shipping

For single-unit orders, each cylinder head is packed in a carton with shock-absorbing foam to protect the casting, valve train and machined surfaces during transit. For bulk orders, the carton-packed units are palletized for shipment, providing stable handling and efficient freight loading. This packaging is designed for heavy goods and international freight, and helps ensure the cylinder head arrives ready for installation.

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