Toyota 1HZ Complete Cylinder Head 909057

Brand new 1HZ (1H-Z) cylinder head assembly with valves and camshaft pre-installed.

Precision-manufactured to OEM specifications for Toyota Land Cruiser and Coaster vehicles powered by the 4.2L diesel engine. Ready to bolt onto your engine block after transferring your external parts. Ideal for head replacement, engine repair or rebuild. 12-month warranty.

  • Engine Code: 1HZ (1H-Z)
  • Displacement: 4.2 Litre (4164 cc)
  • Configuration: Inline 6-cylinder, SOHC 12-valve, Naturally Aspirated Diesel
  • Fuel Type: Diesel
  • Condition: New – Cylinder Head Assembly (Valves & Camshaft Pre-Installed)
  • OEM: Toyota 11101-17010 / 11101-17011 / 11101-17012 / 11101-17050 / AMC 909057
  • Warranty: 12 months
  • Compatible models: Toyota Land Cruiser 70/80/100 Series, Coaster, Mega Cruiser, Dyna (confirm via OEM number)

Description

1HZ Cylinder Head Assembly – Toyota Land Cruiser / Coaster 4.2 Diesel

1HZ cylinder head assembly for Toyota 4.2L diesel engines. Brand new, with valves and camshaft pre-installed. Direct fit for Toyota Land Cruiser 70/80/100 Series, Coaster, Mega Cruiser and Dyna. OEM 11101-17010, 11101-17011, 11101-17012, 11101-17050, AMC 909057. 12-month warranty.

Don’t Let a Cracked Cylinder Head Put Your Land Cruiser Out of Service

A failed 1HZ cylinder head means costly downtime – especially if your Land Cruiser, Coaster or Dyna is a working vehicle. Every day off the road eats into your profits and delays your customers. The last thing you need is a cheap replacement that cracks again within months.

We solve that problem. As a leading cylinder head manufacturer and wholesale supplier, we produce this 1HZ cylinder head to original tolerances and pressure-test every single unit before it ships. No guesswork. No rejects. No comebacks.

Why Workshops, Rebuilders and Distributors Choose Us

  • Built to last – OEM-grade cast iron with precision-machined valve seats and guides
  • Ready to install – valves and camshaft pre-installed, saving hours of shop time
  • Tested before shipping – every head is pressure-tested for cracks and leaks
  • Backed by warranty – full 12-month coverage on every unit
  • Packed for safe freight – reinforced wooden crate for international shipping
  • Wholesale pricing – bulk discounts for workshops and parts distributors

What’s Included

  • Complete cylinder head casting – precision-machined and pressure-tested
  • 12 valves – intake and exhaust, heat-resistant (2 per cylinder)
  • Valve springs, spring seats and retainers
  • Valve stem seals and valve guides (pre-installed)
  • Camshaft (SOHC)
  • Camshaft bearing caps and bolts (torqued to specification)
  • Core plugs and oil gallery plugs (installed)

Note: Valve cover, timing gears, fuel injectors, glow plugs, intake manifold, exhaust manifold and injection pump are NOT included. Transfer these from your original engine.

Vehicle Compatibility

Fits the following Toyota models equipped with the 1HZ engine:

  • Toyota Land Cruiser 70 Series – 4.2 D (1990 – present, various body styles)
  • Toyota Land Cruiser 80 Series – 4.2 D (1990 – 1998, select markets)
  • Toyota Land Cruiser 100 Series – 4.2 D (1998 – 2007, some regions)
  • Toyota Coaster – 4.2 D bus (1993 – 2016)
  • Toyota Mega Cruiser – 4.2 D (select markets)
  • Toyota Dyna – 4.2 D (light truck, select versions)

Always verify your engine code and OEM part number before ordering. Send us your VIN or engine number and we will confirm fitment within hours.

OEM Part Number Cross-Reference

  • AMC: 909057, 909057K
  • Toyota: 11101-17010, 11101-17011, 11101-17012, 11101-17050
  • Related references: 1110117010, 1110117011, 1110117012, 1110117050

Get a Quote – Fast

Tell us your engine code, OEM number or VIN, and we will confirm compatibility before you pay. Most orders ship within 24–48 hours and arrive in a reinforced crate ready for installation. Bulk pricing available for workshops and parts distributors.

More Cylinder Heads & Quick Contact

Additional Technical Resources