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[email protected] (Clickable)When operating heavy machinery like Komatsu excavators or Caterpillar dozers, engine integrity is paramount. Our focus, as Honour Time Machinery Limited, is providing a superior, high-quality domestic replacement for the Yanmar 4TNV94 Forged Steel Crankshaft. This component is crucial in preventing common failures such as excessive engine oil consumption, power loss, and abnormal noise. Our products match or exceed the specifications of the original part number, offering an affordable and reliable alternative. We specialize in essential diesel engine components including Liner Kits, Pistons, Piston Rings, and the full range of Gasket Kits.
We are the global experts in engine spare parts for leading brands like Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. Our inventory includes the main Crankshaft, Turbocharger, Water Pump, Engine Bearing (Crankshaft Bearing and Connecting Rod Bearing), Cylinder Block, Cylinder Head, and Connecting Rods, ensuring your engine rebuild is successful.
| Product Name | Engine Model | Part Number | OEM/ODM Service |
|---|---|---|---|
| Crankshaft | Yanmar 4TNV94 Forged Steel | 129900-35000 / 12990035000 | Provided |
| Condition | MOQ | Packing | Supply Ability |
| 100% New | 1 piece | Wooden cases or pallets | 1000pcs per month |
| Payment Terms | Delivery Methods | ||
| T/T, Western Union, MoneyGram | Express: DHL Fedex EMS UPS or by Air/ Sea | ||
Need a full overhaul kit? Check out our Machinery Diesel Engine Spare Parts 315-4669 173-1263 212-3677 Piston Kit for Caterpillar 3044 Engine Overhaul Repair Kit Parts.
Click to View and Order Now! ►Beyond the critical Yanmar 4TNV94 Crankshaft, we provide a complete lineup of high-demand engine components and engine overhaul repair kits to address diesel fuel pump rebuild and other engine needs, ensuring smooth operation and minimizing downtime for your fleet.
| Brand | Engine Models | |
|---|---|---|
| Komatsu | 3D82, 3D84, 4D105, 6D95, 6D108, 6D110, 4D84, 4D95, 6D102, 6D105, 6D114, 6D170 | |
| KOBELCO | J05E, 6D34T, 6D16, J08E, 6D22T, 6D24T, 6D16T, 6D34 | |
| CATERPILLAR | 3114, 3116, C4, C6, 3064T, S6K, C7, C-9, C13 | |
| Mitsubishi | 4D34, 4D24, K4M, S3Q2, 6D16, 6D24, S4KT, 6D40 | |
| ISUZU | 3LD1, 4LE1, 4BG1, 4HK1, 6SD1, 6WG1, 4LE2, 4JB1, 6BG1, 6HK1, 6WF1 | |
| Yanmar | 4D88E, 4TNE84, 4TNV88, 4TNV94L, 4TNE88, 4TNE94, 4TNV98, 4TNV106 | |
| HINO | J05E, J08E, V25C, EF750, P11C, V21C, H06CT, H07D | |
| CUMMINS | QSB6.7, QSM11-C, B5.9-C, B3.9-C, QSM11, C8.3-C | |
| VOLVO | D6D, D6E, D9E, D12D, D7D, D7E, D12E, D16D | |
Understanding the components is key to a successful engine overhaul. Here are 10 essential part definitions and their applications in specific equipment models:
Piston: Converts the energy from burning fuel into mechanical force. Located inside the Cylinder Block. Komatsu PC200-8 Piston.
Crankshaft Bearing: Supports the crankshaft within the engine block. Located at the main journals in the Cylinder Block. Caterpillar 3064T Main Bearing Set.
Piston Ring: Seals the combustion chamber and manages oil. Located in grooves around the Piston. Isuzu 4BG1 Piston Ring Set.
Valve Guide: Guides the valve stem motion. Located in the Cylinder Head. Cummins B5.9-C Valve Guide.
Gasket Head: Seals the combustion chamber between the cylinder block and cylinder head. Yanmar 4TNV98 Gasket Head.
Turbocharger: Compresses the air flowing into the engine to increase power. Mounted on the exhaust manifold. Weichai WP10 Turbocharger.
Oil Pump: Circulates lubricant throughout the engine. Located inside the oil pan or front of the Cylinder Block. Kubota V3307 Oil Pump.
Flameout Solenoid: Cuts off the fuel supply to stop the engine. Usually located on the fuel injection pump or engine body. Komatsu 4D95 Flameout Solenoid.
Main Valve: Controls hydraulic fluid flow in construction equipment. Located within the main control valve bank. Caterpillar 3114 Main Valve Spool.
Connecting Rod: Connects the piston to the crankshaft. Located between the Piston and Crankshaft. Isuzu 6WG1 Connecting Rod.
Fault: Cummins QSB6.7 Engine running rough and emitting black smoke. Solution: This often points to poor combustion. Check for a blocked air filter, a faulty injector Nozzle (requiring replacement of the Diesel Pump or injector assembly), or an issue with the Turbocharger (low boost pressure). Addressing the Piston Ring seal integrity is also vital to rule out compression loss.
Scheduled Oil Changes: Use the correct grade oil and replace the oil filter at manufacturer-specified intervals to protect critical components like the Crankshaft Bearing and Piston.
Cooling System Check: Regularly inspect the Radiator and coolant levels. Overheating can severely damage the Gasket Head and Cylinder Block.
Belt Tension: Ensure the Belt for the Water Pump and cooling fan is properly tensioned to maintain cooling efficiency.
Genuine Gaskets: Always use a Complete Engine Gasket Kit during rebuilds to ensure a perfect, durable seal against oil leaks and pressure loss.
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