Introduction
Product NO.
| ML NO. | OEM NO. | REF NO. |
| MLG107A | ERR5027 | 908761 |
| MLG107B | | 908765 |
| MLG107C | LDF500180 | 908759 |
Product Information Cylinder Head
1. Land Rover 300Tdi Cylinder Head
2.5L | Inline-4 | Turbo Diesel | OHV | 8-Valve
Specifications:
| Feature | Description |
|---|
| Engine Code | 300Tdi (Type: 16L, 23L, 24L, etc.) |
| Displacement | 2.5L (2495 cc) |
| Valvetrain | OHV – 2 valves per cylinder |
| Cylinder Head Material | Cast Aluminum |
| Block Material | Cast Iron |
| Turbocharging | Yes (Garrett T25 or GT20) |
| Fuel System | Direct Injection (Bosch VE Pump) |
| Cooling | Water-cooled |
Compatible Vehicles:
- Land Rover Defender 90 / 110 / 130 (1994–1998)
- Land Rover Discovery 1 (1994–1998)
Common Issues:
- Cracking around pre-combustion chambers
- Warping from overheating
- Cylinder head gasket failure
OEM Reference:
- Head (Bare): LDF500180, LDF500180L
- Head (Assembled): Available with valves, pre-combustion chambers
Installation Tips:
- Always pressure-test used heads
- Replace head bolts and use correct torque pattern
- Check injector sealing (copper washers)
2. Ford Power Stroke Cylinder Head (7.3L)
7.3L | V8 | Turbo Diesel | OHV | 16-Valve (2V)
Specifications:
| Feature | Description |
|---|
| Engine Family | International/Navistar T444E |
| Application Name | Ford Power Stroke 7.3L |
| Displacement | 7.3L (444 cubic inches) |
| Valvetrain | OHV – 2 valves per cylinder (16 total) |
| Cylinder Head Material | Cast Iron |
| Turbocharging | Yes (Wastegated or VGT on late models) |
| Fuel System | HEUI (Hydraulic Electronic Unit Injection) |
Compatible Vehicles:
- Ford F-250 / F-350 / E-Series (1994–2003)
- Ford Excursion 7.3L
- International trucks with T444E engine
Common Issues:
- Injector cup cracking
- Valve seat pitting (especially on high-mileage units)
- Warping from overheating
OEM / Aftermarket:
- Head (bare or complete) available from Navistar, Mahle, Clearwater, etc.
- Injector cups and valve kits sold separately
Notes:
- Use ARP head studs for performance builds
- Always verify cylinder head casting for cracks between valves and cups
3. 21L Engine (Ford 2.1 Diesel / Renault-Sourced)
2.1L | Inline-4 | Indirect Injection Diesel | OHV | 8-Valve
Specifications:
| Feature | Description |
|---|
| Engine Code | 21L / J8S |
| Displacement | 2.1L (2068 cc) |
| Valvetrain | OHV – 8 valves |
| Cylinder Head Material | Cast Iron or Aluminum (varies) |
| Fuel System | Mechanical Indirect Injection |
| Turbocharged? | Some variants were (J8S Turbo) |
Compatible Vehicles:
- Ford Granada / Scorpio 2.1D
- Renault 18 / 21 / 25 / Trafic
- Volvo 340 / 360 (select diesel models)
Common Issues:
- Cylinder head cracking between pre-combustion chambers
- Weak preheating system leads to cold start wear
- Valve guide wear over long distances
OEM Part Numbers:
- Vary by model year and turbo version
- Common casting: J8S stamp near injector ports
