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YUCHAI ENGINE YC6M YC6K Fuel Injector Assembly KJ100-1112100-202
Yuchai Heavy-Duty Engine Common Rail System & Injector Overhaul BOM List
| No. | Part Number / Spec | Part Name (EN) | Qty | Key Technical Parameters & Standard Maintenance Notes |
|---|---|---|---|---|
| 1.1 | KJ100-1112100-202 | Yuchai OEM Common Rail Fuel Injector Assembly | 6 pcs | Core Replacement Item. Ultra-high precision alloy assembly. Responsible for micron-level fuel atomization; features an individual laser-etched IMA calibration code. Complete 6-cylinder replacement. |
| 1.2 | Yuchai Dedicated Spec | Injector Base Copper Sealing Washers | 6 pcs | One-time use only; mandatory replacement upon disassembly. Often included in the factory injector box. Seals the bottom combustion chamber to prevent thousands-degree high-pressure gas blow-by into the valve cover chamber. |
| 1.3 | Yuchai Dedicated Spec | Injector Outer Leak-Proof Rubber O-Rings | 6 pcs | One-time use only; mandatory replacement upon disassembly. Fits around the mid-section of the injector body; strictly isolates cylinder head lubricating engine oil from the fuel return gallery. |
| 1.4 | 6105Q-1112011 (Reference) | Injector Clamp Mounting Bolts | 6 pcs | Highly recommended to replace as a set. High-tensile torque-to-yield fasteners. Old bolts deform permanently under long-term thermal stress; reusing risks bolt snapping or insufficient clamping force, causing gas leakages. |
| 2.1 | M3000-1112030A (Series) | High-Pressure Fuel Feed Lines (Cylinder Lines) | 6 pcs | Critical Inspection/Recommended Replacement. Connects common rail to individual injectors. Joint cone surfaces distort easily under repeated torquing; reusing poses a severe risk of micro-seepage under ultra-high working pressure (2000 Bar). |
| 2.2 | Yuchai Engine Matched | Fuel Return Line Cross-Over Assembly | 1 pc | Routes excess overflow diesel from each injector back to the fuel tank. Heavy-duty metallic braided or welded pipe; ensure it is unobstructed during overhaul. |
| 2.3 | Fluororubber Material | Fuel Line Cylinder Head Entry Grommets | 6 pcs | Rubber seals located at the cylinder head flank where fuel lines penetrate. Prevents external dust/debris from entry and internal engine oil from weeping out. |
| 3.1 | M3400-1105140 (Reference) | Fine Fuel Filter Element (Common Rail Dedicated) | 1-2 pcs | Mandatory Replacement. Must use Yuchai genuine spin-on elements with premium filtration rating (typically 3-5 microns). Never use cheap aftermarket filters, or the new injectors will fail instantly. |
| 3.2 | CX0712A / 1111050 (Reference) | Fuel-Water Separator Element (Primary Filter) | 1 pc | Mandatory Replacement. Traps large particulate contaminants and trace water droplets from diesel to protect the fine filter and prevent common rail corrosion. |
| 3.3 | Diagnostic Scan Tool | ECU IMA Injector Coding & Calibration Service | 1 item | Essential Post-Assembly Procedure. Requires a Yuchai dealer-level or heavy-duty universal scanner to input each new injector's laser-etched IMA calibration code into the ECU to compensate for manufacturing tolerances. |
DETAILS
| DESCRIPTION | Fuel Injector Assembly | PART NUMBER | KJ100-1112100-202 |
| WEIGHT | 1kg | VOLUME |
260x 65 x 60 mm |
| TRUCK MOLDE | YUCHAI | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | ENGINE |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
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