Description
Tatan Machinery supplies professionally remanufactured Komatsu 3D88E diesel engine assemblies (OEM reference: 22F-01-21101) engineered specifically for Komatsu PC35MR-2 short-tail mini excavators. Built upon the bulletproof Yanmar 3TNV88 industrial architecture, this 1.642L 3-cylinder power plant is remanufactured strictly to OEM micrometer tolerances with 100% brand-new internal wear components. This page details extended machine compatibility, compact engine bay failure diagnostics, workshop bench-testing standards, and critical field installation advice for utility contractors and plant hire workshops.
Compatible Equipment Matrix (Machine Fitment)
The Komatsu 3D88E (Yanmar 3TNV88 platform) powers several popular Komatsu tight-tail mini excavators and compact wheel loaders. Please check your model below:
• PC35MR-2 (Serial S/N 5001-UP)
• PC35MR-3
• PC30MR-2 / PC30MR-3
• PC35R-8
• WA30-6
• WA40-6
• WA50-6
• Yanmar Vio35-3 / Vio35-5 Series
• Gehl & Mustang Mini Skidsteers
• Industrial Power Generation Units
* Note: Bellhousing depths, oil dipstick locations, and throttle control linkages differ between excavator and wheel loader applications. Gavin verifies your machine PIN to guarantee 100% bolt-on fitment.
Supplier Information & Build Status
| Supplier: | Tatan Machinery (Professional Excavator Parts Supplier) |
| Product Category: | Diesel Engine Assembly / Excavator Engine Parts |
| Engine Model: | Komatsu 3D88E-5 / 3D88E-6 (Yanmar 3TNV88 Architecture) |
| OEM Reference: | 22F-01-21101 |
| Engine Build Condition: | Professional Remanufactured to OEM Specs (100% Brand-New Wear Components, Tested Drop-In Ready) |
| Other Parts Condition: | All other excavator components on our site (Hydraulic Main Pumps, Control Valves, Travel Motors) are 100% Brand New. |
| Target Machine Brand: | Komatsu Excavator Parts |
🏢 Tatan Machinery Engine Staging & Workshop Facility
Physical inventory storage, mini excavator engine remanufacturing staging, and pre-export testing facility:
Physical inventory — ready for global crating. Video calls and warehouse visits welcome.
Technical Specifications
| Parameter | Specification Data |
|---|---|
| Engine Model | Komatsu 3D88E-5 (Yanmar 3TNV88 Base) |
| Total Displacement | 1.642 Liters (1,642 cc / 100.2 cu in) |
| Cylinder Arrangement | Inline 3-Cylinder, 4-Stroke Mechanical Diesel |
| Bore × Stroke | 88 mm × 90 mm (3.46 in × 3.54 in) |
| Rated Output Power | 21.7 kW (29.1 HP / 29.5 PS) @ 2,400 RPM |
| Fuel Injection System | Mechanical In-line Fuel Injection Pump (Direct Injection) |
| Aspiration | Naturally Aspirated |
| Dry Engine Weight | Approx. 142 kg (313 lbs) Complete Assembly |
Remanufacturing Standard: What Makes This Drop-In Ready?
A 3.7-ton mini excavator requires consistent hydraulic torque for trenching and tracking. We do NOT sell worn salvage yard pulls. Every 3D88E engine is completely stripped and rebuilt with 100% brand-new internal wear parts:
- Block & Head Core Verification: Cylinder block and head undergo chemical carbon stripping, ultrasonic cleaning, and pressure hold tests. Fire deck precision milled flat.
- 100% Brand-New Wear Components Installed: Brand-new 88mm pistons, complete piston ring sets, cylinder liner sleeves, connecting rod bushings, main bearings, rod bearings, and thrust washers.
- Precision Crankshaft Re-Machining: Forged crankshaft journals micropolished and dynamically balanced to factory runout specifications.
- 100% Brand-New Gasket & Seal Pack: Premium cylinder head gasket, front timing cover seal, and rear crankshaft main seal replaced to prevent oil weeping into the bellhousing.
- Mechanical Injection Pump Calibration: Mechanical fuel injection pump elements inspected, recalibrated on a bench, and fuel injectors fitted with new nozzles for clean atomization.
When to Replace the 3D88E Engine on Komatsu PC35MR-2: Field Diagnostics
The Komatsu PC35MR-2 features a tight zero-tail swing counterweight profile, concentrating high heat in a compact engine bay. We recommend installing a complete remanufactured assembly under these failure symptoms:
- Severe Thermal Head Warping & Coolant Ingestion: In tight zero-tail engine compartments, clogged radiator air passages cause severe localized overheating, cracking the cylinder head between valve ports and forcing coolant into the cylinders.
- Engine Lug-Down & Stall Under Hydraulic Breaker Duty: Operating hydraulic breakers generates high backpressure. Worn mechanical injection pump plungers fail to hold injection pressure, causing the engine to bog down severely or stall under load.
- Connecting Rod Bearing Seizure from Severe Slope Operation: Working on steep slopes with low oil pan capacity (~4.2L) causes temporary oil pickup starvation, spinning connecting rod bearings and scoring the crankshaft journals.
- Heavy Crankcase Blow-by & Oil Consumption: Scored cylinder walls from dust intake or ring sticking, blowing blue oil smoke through the crankcase breather pipe and losing cold-start compression.
Workshop Testing Standards (Pre-Delivery Inspection)
Every remanufactured Komatsu 3D88E engine undergoes 5-step quality verification before packaging:
- Manual Crankshaft 720° Barring Test: Smooth rotation verification without valvetrain binding or mechanical interference.
- Mechanical Fuel Pump Timing & Plunger Check: Verification of fuel spill timing and injection nozzle atomization pattern.
- Lube Oil Gallery Pressure Priming: Pre-filling the oil circuit to confirm pressurized flow through main journals and valvetrain.
- Block & Head Pneumatic Leak Hold Test: Air hold test to guarantee cylinder head gasket and water jacket sealing integrity.
- Flywheel Coupler Concentricity Dial Check: Ensuring 100% true alignment for the hydraulic main pump drive coupling.
📹 Live Simple Engine Workshop Inspection Video
Watch our workshop technician verify rotation, stamped serial numbers, and mounting ports:
✓ Real physical unit filmed at Tatan Machinery workshop
Export Heavy-Duty Packaging Process
Although compact, the 3D88E is packed to full industrial export standards to survive rough ocean and air cargo transit:
- Internal & External Anti-Rust Preservation: All raw machined surfaces, crankshaft snout, and flywheel teeth coated with high-grade anti-corrosion grease.
- Dust Caps on All Openings: Intake manifold, exhaust elbow, water inlets, and fuel feed fittings sealed with heavy-duty protective plugs.
- Direct Sump-Skid Bolting: The engine is anchored securely to heavy timber base skids through rigid mounting brackets.
- ISPM 15 Fumigation-Free Solid Crate: High-density export plywood crate secured with galvanized steel strapping.
Actual export wooden crate packaging and internal skid bracing for 3D88E
Global Shipping & Customs Documentation
Fast, reliable dispatch tailored for commercial contractors and parts wholesalers worldwide:
- Emergency Machine Down (AOG Freight): Priority air cargo via DHL Aviation, FedEx Heavy Cargo, or direct airline belly freight within 3–7 business days.
- Ocean Container Freight (LCL / FCL): Consolidated container shipping to all major commercial seaports worldwide.
- Complete Export Documents: Commercial Invoices with correct HS Code (8408.20), Packing Lists, and Certificates of Origin for smooth customs clearance.
Container loading and air freight dispatch supported by global logistics partners
Critical Installation Guidelines (PC35MR-2 Mechanic Checklist)
Because the PC35MR-2 features a tightly enclosed short-tail engine bay, mechanics MUST adhere to these procedures:
- Clean Tight Radiator Cooling Passages: Zero-tail swing excavators have limited airflow. You MUST thoroughly blow out and chemically clean the radiator core and hydraulic oil cooler. Installing a fresh engine with dirty cooling fins will blow the new head gasket within days!
- Hydraulic Main Pump Spline Alignment: The PC35MR-2 couples directly to the main variable-displacement hydraulic pump. Inspect the rubber dampener coupling element for cracks. Guide the pump in by hand; never draw it flush using flange bolts!
- Mechanical Fuel System Bleeding: Bleed low-pressure air at the fuel-water separator hand primer, then loosen the injection line flare nuts at the cylinder head while cranking until solid fuel pulses emerge. Tighten and start.
- Engine Stop Solenoid Travel Check: Verify that the 12V fuel shutoff solenoid operates freely. If the solenoid plunger binds against the linkage, the engine will either fail to start or fail to shut off.
- Initial Oil Fill & Filter Priming: Pre-fill the new spin-on oil filter with 15W-40 oil. Disconnect the stop solenoid wire and crank the starter motor in 10-second intervals until the instrument cluster oil pressure lamp extinguishes.
Buyer Frequently Asked Questions (Purchasing FAQ)
Q: What components are included with this complete 3D88E engine assembly? Is it plug-and-play?
A: Our assembly is delivered as a complete, ready-to-run drop-in engine. It includes the cylinder block, cylinder head, valvetrain, crankshaft, pistons, in-line mechanical fuel injection pump, fuel injectors, water pump, oil filter housing, oil pan, and intake/exhaust manifolds. Starter motors, alternators, and cooling fans can be pre-fitted based on your machine’s exact voltage and harness configuration.
Q: How does your remanufactured 3D88E compare to a used salvage yard pull?
A: We do NOT sell junkyard pulls with unknown operating hours. This engine is completely stripped to bare cast iron, crack-tested, and precision re-machined. 100% of internal wear parts are replaced with brand-new parts (new 88mm pistons, piston rings, cylinder liners, rod/main bearings, and a complete gasket kit). The mechanical fuel pump is flow-tested on a calibration bench. It provides OEM-level compression and service life at a fraction of dealer pricing.
Q: Are your hydraulic pumps and other PC35MR-2 replacement components remanufactured too?
A: No. Only our diesel engine assemblies are professionally remanufactured. All other Komatsu PC35MR-2 replacement parts—including our main hydraulic pumps, main control valves, final drive travel motors, and rubber tracks—are 100% Brand New (OEM-Grade Aftermarket) ready for immediate jobsite installation.
Q: Will this engine fit my Komatsu PC35MR-3 or PC30MR-2 without modification? How do we verify?
A: While the core 3D88E engine block is identical across these models, differences can exist in flywheel housing pilot holes, throttle stop solenoid brackets, or oil pan sumps. Simply send your machine’s serial number plate and photos of your old engine’s pump mounting face to Gavin. We cross-verify the exact parts arrangement in the official Komatsu parts system within 10 minutes.
Q: Can I see live video testing and stamped block numbers of my specific engine before dispatch?
A: Absolutely yes. Transparency is our core standard. Prior to balance payment and crating, we supply clear photos and live video of the specific unit assigned to your order. You will see the stamped serial numbers, mechanical injection pump tags, flywheel teeth, and the complete wooden box packaging process.
Q: How is the engine protected during sea freight, and what customs documentation is provided?
A: Every shipment from Tatan Machinery is protected by full commercial marine cargo insurance. The engine is bolted down directly onto internal skids within a fumigation-free solid plywood crate. We supply commercial invoices with accurate HS Codes (8408.20), detailed packing lists, and Certificates of Origin for smooth customs clearance at your destination port.
🔗 Frequently Purchased Together with Komatsu PC35MR-2 Diesel Engine:
- MAIN VALVE:
Main Control Valve Assembly for Komatsu PC35MR-2 Excavator
100% Brand New - HYDRAULIC PUMP:
Main Hydraulic Pump Assembly for Komatsu PC35MR-2
100% Brand New - TRAVEL MOTOR:
Final Drive Travel Motor Assembly for Komatsu PC35MR-2
100% Brand New - BRAND CATALOG:
View All Komatsu Excavator & Heavy Equipment Parts Collection
Get Wholesale Factory Quote for 3D88E 22F-01-21101 Engine
Looking for direct factory pricing, stock availability, or technical verification for Komatsu 3D88E engines? Contact senior specialist Gavin now!
💡 Fast Quote: Send your engine serial number or nameplate photos for an accurate match within 10 minutes!
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote based on freight destination and configuration.
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
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