Home
Product NO.
| ML NO. | OEM NO. | REF NO. |
| MLG047 | 1110130030 1110130031 1110130032 1110130050 1110130080 | 908783 |
| MLG048 | 1110130040 1110130041 1110130042 1110130060 1110130070 1110130071 111010C050 | 908784 |
Product Information Cylinder Head
1 | Product Snapshot
| Engine | 1KD‑FTV | 2KD‑FTV |
|---|---|---|
| Displacement | 2 982 cc (3.0 L) | 2 494 cc (2.5 L) |
| Induction | VNT turbo, intercooler | Turbo (fixed or VNT, market‑dependent) |
| Valvetrain | DOHC 16 valves, chain drive | DOHC 16 valves, belt drive |
| Fuel System | High‑pressure common‑rail (D‑4D) | High‑pressure common‑rail (D‑4D) |
| Head Material | Cast aluminium alloy | Cast aluminium alloy |
| Emissions | Euro 3 – Euro 5 | Euro 2 – Euro 5 |
Heads are supplied bare, semi‑complete, or fully assembled (with valves, springs, camshafts & lifters). All units are CNC‑machined, pressure‑tested, and packed for export.
2 | OEM Part‑Number Guide
| Engine | Main OEM P/N (casting families) |
|---|---|
| 1KD‑FTV | 11101‑30030, 11101‑30050, 11101‑0L060, 11101‑30080 |
| 2KD‑FTV | 11101‑30040, 11101‑30041, 11101‑30042, 11101‑30060, 11101‑30070/71, 11101‑0L050 |
(Casting shape and EGR port differ by market; confirm by VIN/engine code before ordering.)
3 | Vehicle‑Application Matrix
| Engine | Core Models (global production years) |
|---|---|
| 1KD‑FTV 3.0 L | Toyota Hilux (KUN26/36, 2005‑2015) – pickup & Vigo Revo Toyota Fortuner 3.0 D‑4D (2005‑2016) Toyota Land Cruiser Prado 120/150 (TRJ/KDJ120, 150, 2002‑2015) Toyota Hiace / Regius Ace 3.0 D‑4D (2004‑2019) Toyota 4Runner 3.0 D‑4D export trims |
| 2KD‑FTV 2.5 L | Toyota Hilux 2.5 D‑4D (KUN25/35, 2004‑2015) Toyota Innova 2.5 Diesel (TGN40, 2005‑2015) Toyota Fortuner 2.5 D‑4D (selected ASEAN markets) Toyota Hiace / Quantum 2.5 D‑4D (TRH/KDH200, 2004‑2019) Toyota Dyna 150 / ToyoAce 2.5 D‑4D (2001‑2011) |
4 | Installation Highlights
| Step | Key Points |
|---|---|
| Preparation | Check deck flatness ≤ 0.05 mm; hot‑pressure‑test water jackets. |
| Gasket & Bolts | Always use a new MLS head gasket and new TTY head bolts. |
| Torque Sequence (typ.) | 39 N·m → 90° → 90° (cross pattern, centre‑out). |
| Timing Items | 1KD uses a long‑life chain but inspect guides; 2KD belt & tensioner should be renewed. |
| EGR / Port Match | Ensure correct EGR gallery (EURO 4/5 heads have additional passages). |
| Post‑start Checks | Bleed cooling system; verify rail pressure & VNT actuator function to avoid over‑boost. |
5 | Typical Failure Modes
| Symptom | Likely Cause |
|---|---|
| Coolant loss / overheat | Crack between exhaust seat & coolant jacket or warped head |
| Hard cold‑start & white smoke | Cracked pre‑combustion bowl or low compression |
| Oil‑in‑coolant | Internal crack or gasket blow‑by |
| Power drop & rattling | Valve‑seat recession, cam journal wear, or VNT sticking |
6 | Export Hot‑Spots
• Southeast Asia – Thailand, Philippines, Indonesia
• Africa – Kenya, Nigeria, South Africa
• Middle East – UAE, Iraq, Saudi Arabia
• South America – Chile, Peru, Bolivia
• Oceania – Australia, PNG
7 | Common Cylinder Head Failures & Repair Notes
(Applicable to 1KD-FTV / 2KD-FTV 2.5L & 3.0L D-4D Engines)
| Failure Mode | Symptoms | Causes | Repair/Prevention |
|---|---|---|---|
| Cracked Cylinder Head | – Coolant loss |
• White exhaust smoke
• Engine overheating
• Pressurized cooling system after cold start – Overheating due to clogged radiator or low coolant
• Excessive turbo boost
• Thin or degraded casting in early OEM heads – Replace head with reinforced casting (e.g. 11101-30050 / 0L060)
• Upgrade to high-quality aftermarket casting
• Always replace radiator and thermostat during head job
Valve Seat Recession – Ticking noise
• Loss of compression
• Misfire under load – Poor valve material in early models
• Prolonged high-temp operation
• Low-lubricity fuel – Resurface seat and install new hardened valve seats
• Use better quality diesel fuel
• Check valve clearances regularly
Oil in Coolant / Sludge in Radiator – Mayonnaise-like sludge
• Oil cooler contamination
• Internal leak – Head-to-block crack
• Failed gasket
• Faulty EGR cooler (in EGR-equipped engines) – Pressure test both head & oil cooler
• Replace gasket and check block deck flatness
• Clean coolant system thoroughly
Warped Head / Gasket Blowout – Coolant leak externally
• Compression leak to coolant
• Overheating under load – Over-torqued head bolts
• Running with low coolant
• Poor-quality head gasket – Machine head flatness (tolerance: ≤ 0.05 mm)
• Replace bolts (TTY bolts must not be reused)
• Use correct torque & angle method
Camshaft Journal Wear / Cam Snap – Loud ticking or knocking
• No start
• Uneven valve timing – Poor oil pressure
• Lack of oil changes
• Long idling with poor lubrication – Replace head or reline cam journals (if serviceable)
• Clean oil system thoroughly
• Always use correct 5W-30/15W-40 oil grade
Additional Tips
• 1KD early models (pre-2007) are known for head cracking issues due to thin castings — upgraded OEM versions like 11101-0L060 or reinforced aftermarket heads are strongly recommended.
• Always use new TTY head bolts and MLS gaskets rated for turbo-diesel compression.
• EGR-equipped engines (especially Euro 4+) are more likely to overheat due to carbon buildup — regular intake cleaning helps prevent head damage.
• After repair, perform CO2 coolant test and system pressure hold before engine restart.
