Description
3TNV88 129005-00100 Engine Assembly Overview
The 3TNV88 129005-00100 Engine assembly manufactured by Tatan is a liquid-cooled, 3-cylinder 4-stroke industrial diesel powerplant belonging to our Diesel Engine Assembly classification. Engineered specifically for Hitachi ZX35U, ZX35U-2, ZX35U-3, and ZX35U-5A mini excavators, replacing your worn or seized core with a Tatan complete turnkey assembly stops crankcase oil spitting, restores 21.2 kW (28.4 HP) rated output at 2400 RPM, and cures hot-idle oil pressure loss under continuous hydraulic pump load.
Directly coupled to the excavator’s main hydraulic pump and governing the hydraulic control valve, this complete diesel engine incorporates an induction-hardened forged steel crankshaft, a crossflow cylinder head, a trochoid gear oil pump, and an in-line mechanical fuel injection pump, ensuring 100% direct bolt-on installation with flywheel housings and chassis mounts.
Key Attributes & Technical Parameters for 3TNV88 129005-00100 Engine
| Product Category | Diesel Engine Assembly | Warranty | 1 Year / 12 Months |
| Specific Valve Model | Yanmar 3TNV88 / 3TNV88-XBV Diesel | Brand Name | Tatan |
| Compatible Equipment | Hitachi ZX35U | ZX35U-2 | ZX35U-3 | ZX35U-5A | OEM Part Number | 129005-00100 / YA00000458 |
| Matched Engine Series | Yanmar 3TNV88 Series (3-Cylinder) | Place of Origin | Guangdong, China |
| Max Relief Pressure | 21.2 kW (28.4 HP) @ 2400 RPM Rated | Pilot Control Pressure | 1.642 Liters (88mm × 90mm) |
| Spool Precision Spec | Micro-Honed STD 88mm Bore < 0.003 mm | Quality Status | 100% Brand New Turnkey Assembly |
| Machinery Test Report | Provided (100% Dyno Bench Tested) | Video Outgoing-Inspection | Provided Before Shipping |
| Hydraulic Fluid Spec | 15W-40 Heavy-Duty Diesel Engine Oil | Packaging | Export Wooden Box Packaging |
Supported Excavator Machinery Brands & Engine Lineup
In addition to Hitachi mini excavators, Tatan manufactures and supplies replacement complete diesel engines, short blocks, and overhaul parts across global equipment brands:
Application Scenarios & Buyer Value
When replacing your mini excavator power unit with our 3TNV88 129005-00100 Engine, workshop mechanics and contractors secure direct operational benefits:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Hitachi ZX35U Engine Repowering | 1:1 direct bolt-on installation eliminates starting delays and restores 21.2 kW power for smooth digging and dozer blading. |
| Compact Machinery Repair Workshops | Avoids the complex labor of block re-boring and injector pump calibration; installs as a pre-timed turnkey unit. |
| Utility & Landscaping Fleets | Heavy-duty forged pistons and multi-layer steel head gaskets withstand continuous hydraulic breaker hammer operations. |
| Mini Excavator Parts Stockists | High-demand 3-cylinder engine inventory packaged in solid export wooden crates ready for immediate worldwide dispatch. |
3TNV88 129005-00100 Engine OEM Diagnostic & Troubleshooting Guide
Use this technical guide to troubleshoot Yanmar 3TNV88 diesel engine symptoms on your Hitachi ZX35U mini excavator:
| Engine Fault Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Hard cold starting with heavy white smoke | Worn mechanical injection pump plungers dropping injection pressure, or faulty glow plugs causing unburned fuel vapor. | Replace with Tatan 129005-00100 complete engine fitted with brand-new calibrated in-line injection pump and pre-tested glow plugs. |
| 2. Coolant boiling & steam from reservoir | Combustion gas blown past cylinder head gasket between cylinders 2 and 3 due to localized thermal distortion under heavy blading. | Install Tatan new engine with factory-torqued MLS head gasket and precision surface-milled parent block face. |
| 3. Heavy crankcase blow-by & oil spitting | 88mm cylinder wall micro-scoring or stuck top compression rings allowing combustion pressure into the oil pan. | Install Tatan new 3TNV88 turnkey engine; flush radiator cooling fins and install fresh dual-element air filters. |
| 4. Oil pressure lamp flickers at hot idle (< 0.08 MPa) | Excessive crankshaft main journal bearing clearance or worn trochoid oil pump rotor losing delivery volume. | Replace complete engine assembly to maintain factory oil pressure (> 0.35 MPa rated / > 0.12 MPa idle) and prevent crankshaft seizure. |
Transport Packaging & Certified Quality Assurance
Every Tatan diesel engine undergoes internal anti-corrosion fogging, heat-sealed plastic wrap, and solid timber export crating:
✈️ Express Air Courier
Partnered with DHL, FedEx, and UPS for 3-7 day priority delivery worldwide.
🚢 Sea Cargo Freight
LCL and FCL container ocean freight for bulk equipment parts replenishment.
📦 Export Wooden Crates
Solid fumigated timber cases lined with thick shockproof foam to prevent transit damage.
3TNV88 129005-00100 Engine FAQ & Related Categories
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
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