We are the Source Manufacturer for Custom Cylinder Liners, Pistons, and Piston Ring Sets.
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Specializing in components for the reliable Yanmar 4TNV86 and other compact diesel engines. Guaranteed quality direct from the source.
The Yanmar 4TNV86 Engine is a stalwart in the Asia Pacific market, powering Mini Excavators and Skid Steer Loaders. Honour Time Machinery Limited offers high-quality replacement Engine Parts, including the critical Piston and Piston Ring Sets, ensuring maximum service life for your compact construction equipment.
We supply the durable Piston Part Number: 129685-22160. This Piston is meticulously manufactured for the precise combustion demands of the 4TNV86 engine. Paired with this is the essential Piston Ring Set Part Number: 129685-22500. These high-grade Piston Rings maintain the seal between the Cylinder Liner and the piston, which is fundamental for engine compression, power output, and minimizing oil consumption in your Yanmar Engine.
Honour Time Machinery Limited is a leading exporter of Diesel Engine Assemblies and Zero Spare Parts for all major construction and industrial brands: Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. Our extensive product inventory includes: Cylinder Liner, Piston, Piston Ring, Crankshaft Bearing (Main Bearing), Connecting Rod Bearing (Con Rod Bearing), Thrust Washer (Thrust Plate), Overhaul Gasket Set (Major Repair Kit), Diesel Pump, Fuel Injector, Crankshaft, Turbocharger, Water Pump, Oil Pump, Engine Block (Cylinder Block), Cylinder Head, and Connecting Rod.
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10 essential engine and machinery parts with equipment examples:
Water Pump: Circulates coolant through the engine. Yanmar 4TNV86 Water Pump in a John Deere 35D Mini Excavator.
Piston: The key component that utilizes combustion force. Kubota V1903 Piston in a Kubota KX057-4 Excavator.
Crankshaft Bearing: Supports the crankshaft's rotation. Cummins 4BT Main Bearing in a JCB 3CX Backhoe Loader.
Turbocharger: Increases engine output by compressing air. Isuzu 4HK1 Turbocharger in a Hitachi ZX210LC Excavator.
Fuel Injector: Atomizes fuel for efficient burning. Caterpillar 3054C Fuel Injector in a Caterpillar 420F Backhoe.
Connecting Rod: Links the piston to the crankshaft. Komatsu SAA6D107E-1 Connecting Rod in a Komatsu PC200-8 Excavator.
Oil Pump: Maintains critical lubrication pressure. Weichai WP6 Oil Pump in a Shantui SL30 Wheel Loader.
Thrust Washer: Controls the crankshaft's axial end play. Yanmar 4TNV94L Thrust Washer in a Takeuchi TL8 Skid Steer.
Cylinder Liner: The replaceable bore for piston travel. Isuzu 6UZ1 Cylinder Liner in a Isuzu GIGA Truck.
Overhaul Gasket Set: Contains all necessary seals for engine rebuilding. Cummins ISL Overhaul Gasket Set in a Hyundai R290LC-9 Excavator.
Diagnosing and resolving persistent noise in the valve train.
Fault: Kubota V2403 Engine (in a Bobcat S185 Skid Steer) Exhibits Loud Tapping/Clattering Noise from the Top End. The noise is typically worse at start-up and may persist even when warm.
Detailed Solution/Treatment:
Oil Pressure and Level: Low oil pressure (due to a worn Oil Pump or incorrect oil viscosity) can starve the hydraulic valve lifters/tappets, causing them to collapse and tap. Check oil pressure with a manual gauge.
Valve Lash Adjustment: While V2403 engines often use solid lifters, check manufacturer specifications for the specific model. Incorrect Valve Lash is a common cause of top-end noise. Adjust the valve clearances precisely.
Inspect Pushrods and Rocker Arms: A bent Pushrod or worn Rocker Arm can create excessive clearance and noise. Visually inspect these components for damage or uneven wear.
Fuel Injector Noise Differentiation: Sometimes, the clicking of the Fuel Injectors can be mistaken for valve train noise. Use a stethoscope to isolate the noise to confirm it is mechanical (valves) or fuel system related.
Honour Time Machinery Limited is your trusted Source Manufacturer and reliable Engine Parts Export Partner. We offer Factory Direct Sales and streamlined logistics for the Yanmar 129685-22160 Piston and Ring Set, guaranteeing OEM Quality Engine Parts for Caterpillar, Cummins, Komatsu, and all major heavy equipment brands globally.
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Secure the Yanmar 4TNV86 Piston 12968522160 and Ring Set 12968522500 at factory-direct wholesale prices today!
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