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Injector copper sleeve disassembly and assembly tool for Cummins NTA855 diesel engines, aftermarket special service tool used to remove and install injector copper sleeves during engine overhaul. All part numbers are cross-referenced against OEM specs for direct matching.
Part numbers: ST-1244
Fits: Cummins NTA855 diesel engine
Position: Cylinder head injector copper sleeve maintenance tool
What you are ordering
Price is per injector copper sleeve disassembly and assembly tool. This tool is supplied as one complete set. It is not interchangeable with other tool numbers. Designed for pulling out old copper sleeves and pressing new sleeves into position accurately. Wrong selection will lead to mismatched dimensions and damage to cylinder head or injector sleeve.
Specifications
Material: high-strength alloy steel
Function: remove and install injector copper sleeve
Finish: heat treated, anti-rust treatment, precision machined
Packing: sturdy storage box, marked with tool number
When to replace
Replace the tool when threads are stripped, working surface is badly worn or deformed, to avoid slipping and scratching the cylinder head bore during overhaul.
Fitting notes
Strictly confirm engine model before ordering. This special tool is designed for NTA855 series. Follow standard overhaul procedures when operating. If you are not sure whether this tool fits your engine, send us engine serial number for confirmation.
Warranty and shipping
Covered by a 12-month warranty against manufacturing defects. Orders are dispatched within 3–7 business days; DHL / FedEx delivery takes 5–10 business days. Tracking number is sent as soon as the parcel leaves our warehouse.
Note: manufacturer names and part numbers are used for identification and cross-referencing only. We are an independent aftermarket supplier and are not affiliated with, or authorised by, the original manufacturer. Please verify the part number against your engine's parts catalogue before ordering — our team is happy to help if you send us your engine model or serial number.
