Engineered with high-density HT250 iron, this Mitsubishi 4D34T cylinder head (ME997519) prevents thermal cracking for Kobelco SK130 excavators. Global wholesale
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Engineered for high-output turbo diesel environments, this Mitsubishi 4D34/4D34T cylinder head (OEM: ME997519) utilizes high-density HT250 cast iron to eliminate thermal cracking. It provides exact fitment for heavy-duty Kobelco SK130 excavators and Fuso Canter trucks. In stock for immediate wholesale export.
The Mitsubishi 4D34 and its turbocharged 4D34T variant are the backbone of the 3.9L mid-range diesel sector, powering legendary 20-ton class equipment like the Kobelco SK130 and Kato HD512, alongside the iconic Fuso Canter truck series. These engines reflect Mitsubishi’s legacy of innovative engineering and performance heritage. However, the higher combustion temperatures and cylinder pressures associated with the turbocharged Direct Injection (DI) system place immense stress on the cylinder head deck. Fleet managers frequently encounter fatal thermal fatigue cracking between the valve bridges, leading to immediate compression loss and devastating equipment downtime on the job site.
Ruich Value has re-engineered the ME997519 cylinder head using high-density HT250-grade cast iron alloy to specifically solve these high-heat stress failures. Unlike standard aftermarket castings, our units feature reinforced valve bridges and optimized coolant galleries designed to dissipate heat more effectively under constant turbo boost. With a precision-machined deck flatness tolerance of ≤ 0.05 mm and mandatory 3MPa pressure testing, our cylinder heads ensure a perfect head-to-block seal, providing construction and logistics fleets with a permanent solution to thermal fatigue.
| OEM Part Number | ME997519 |
|---|---|
| Cross Reference | ME015403, ME015404 |
| Engine Compatibility | Mitsubishi 4D34, 4D34T (3.9L Turbo Diesel) |
| Head Assembly Type | Bare Cylinder Head Casting |
| Material Grade | High-Density Cast Iron (HT250 / G3000 Grade) |
| Valve Configuration | 8-Valve OHV (2 per cylinder) |
| Combustion System | Direct Injection (DI) – Turbocharged Ready |
| Deck Flatness Tolerance | ≤ 0.05 mm |
| Quality Assurance | 3MPa Air & Water Pressure Tested |
| OEM Brand | Application Category | Known Compatible Models |
|---|---|---|
| Kobelco | Heavy Excavators | SK120-3, SK120-5, SK130, SK135SR |
| Mitsubishi Fuso | Commercial Trucks | Fuso Canter FE439, FE449, FE639, FE659 series |
| Kato / Tadano | Cranes & Excavators | Kato HD512, HD550-VII, Tadano Mobile Cranes |
From workhorse 4D34 cylinder heads to massive 6D16 crankshafts, Ruich Value is the global wholesale source for premium aftermarket Mitsubishi engine components. Find the parts to complete your engine rebuilds below.
| Engine Model | OEM / AMC Number | Application (Vehicle & Equipment) |
|---|---|---|
| 4D30 / 4D30A | ME997041, ME012131 | Fuso Canter (3.3L Diesel), Old Canter FE Series |
| 4D31 | ME999863, ME017154 | Fuso Canter, Kato HD400 Excavator |
| 4D32 | ME997277, 22100-45101 | Fuso Canter FE335 (Direct Injection) |
| 4D33 | ME996449, ME997425 | Fuso Canter FE537, FE637 (4.2L) |
| 4D34 / 4D34T | ME997519, ME990753 | Fuso Canter FE449, Rosa Bus, Kobelco SK120 |
| 4D35 | ME202620 | Fuso Canter 4.6L |
| 4D56 (908 512) | MD185926, MD109736 | Protruding Valves: L200 K74, Pajero Sport (Early) |
| 4D56 (908 513) | MD348983, MD303750 | Recessed Valves: L200, Hyundai H100/H1 (D4BH) |
| 4D56U (16V) | 1005A560, 1005B453 | DOHC Common Rail: L200 Triton KA4T, Pajero Sport |
| 4DR7 | ME999127 | Mitsubishi Canter (Vintage), Jeep J54 |
| 4G63 / 4G64 (8V) | MD099086, MD305479 | Mitsubishi Forklift FG20/FG25, L300 Van, Delica |
| 4G54 / G54B | MD026520, MD311828 | Pajero V32, Forklift FG30 |
| 4M40 / 4M40T | ME202620, ME193804 | Pajero V46, Delica, Challenger, Canter (2.8L) |
| 4M41 | ME204200 (Old), 1005B341 (New) | Pajero V78 (3.2L DI-D), Triton ML/MN |
| 4M42 | ME204399, ME194151 | Fuso Canter FE7 (3.0L Common Rail) |
| S4S | 32A01-01010 | Mitsubishi Forklift FD30N, CAT Skid Steer |
| S6S | 32B01-01010 | Mitsubishi Forklift FD50, Hyundai Excavator R140 |
| 6D14 / 6D15 | ME031602, ME999602 | Fuso Fighter (Medium Duty), Kato/Tadano Cranes |
| 6D16 / 6D16T | ME997756, ME403382 | Fuso Fighter Truck, Kobelco SK330, Kato HD1430 |
| 6D22 / 6D22T | ME999664, ME051222 | Fuso Super Great, Kato NK-500E Crane |
| 6D34 | ME081734 | Fuso Fighter, Kobelco SK200-8 Excavator |
| 6G72 (V6) | MD307678 (L), MD307677 (R) | Pajero V43, V33 (3.0L V6 Petrol) |
Discover more solutions in our Mitsubishi Engine Parts Hub.
Excavator hydraulic loads force the 3.9L 4D34T turbo engine to run at high thermal peaks for extended periods. The high turbo boost creates localized heat zones between the intake and exhaust valves. In standard castings, this leads to thermal stress cracking. Our heads use reinforced HT250 cast iron with improved heat dissipation to resist this fatigue and prevent compression loss.
No, they are not interchangeable. While both are Direct Injection (DI) engines, the 4D34 has a larger 3.9L displacement with different coolant passage locations and port geometries compared to the 3.3L 4D31. The ME997519 is specifically designed for the 4D34 and 4D34T engine series found in newer Fuso and Kobelco models.
For the Mitsubishi 4D34, the head bolts should be torqued in the factory sequence to 115-125 Nm (85-92 ft-lb). Because the 4D34T uses high-clamping bolts subject to thermal yield, we strongly advise using brand-new head bolts and a premium multi-layer steel (MLS) gasket to ensure a permanent seal.
We certify quality through a multi-stage process: first, magnetic particle inspection (MPI) to detect surface flaws, followed by 3MPa air and water pressure testing to ensure internal integrity. Finally, the deck is precision-ground to ≤ 0.05 mm flatness before the unit is sealed in rust-preventative VCI packaging for international shipping.
Partner with Ruich Value for reliable, factory-direct aftermarket engine components. We supply fleet managers and rebuild facilities worldwide with premium parts and expert technical support.
For Any Inquiries, please feel free to contact us, Our sales teams are always glad to support your business
