The 800167182 Injector Sealing Ring, cross-referenced as 4917500, is an OEM replacement seal for XCMG hydraulic excavators. It sits at the injector-to-cylinder-head interface and prevents fuel leakage and combustion gas blow-by.
This sealing ring is produced from high-quality fluororubber (FKM/Viton). The material resists diesel fuel, engine oil and high temperatures without swelling, hardening or cracking during extended service.
The 4917500 seal is precision-formed to match the injector sealing groove and mounting base. Its cross-section and compression are optimized to fill the sealing gap tightly under high-pressure fuel conditions.
In XCMG XE2000 excavators, the 800167182 seal protects the fuel system by blocking leakage paths at the injector connection. It also helps keep dust and water vapour out of the injection system.
Common replacement signs include diesel odour around the engine, soot or carbon build-up at the injector base, rough idle, power loss and hard starting after the engine cools down.
Fitting a new 800167182 sealing ring restores a tight seal at the injector bore. This supports stable injection pressure, clean combustion and reliable engine output in daily excavation work.
| Parameter | Specification |
|---|---|
| OEM Number | 800167182 |
| Cross Reference | 4917500 |
| Product Name | Injector Sealing Ring |
| Brand | XCMG |
| Component Type | Fuel Injector Seal / Vibration Isolator |
| Material | Fluororubber (FKM / Viton) |
| Fuel Resistance | Resistant to diesel, engine oil and combustion media |
| Heat Resistance | Designed for high-temperature injector conditions |
| Application | XCMG XE2000 hydraulic excavator |
| Engine Compatibility | Cummins QSK60, QSK50, QSK38, QSK19 series |
| Installation Position | Injector sealing groove, cylinder head seat |
| Installation Method | Direct fit, no special tools required |
| Quality Standard | OEM validated, batch pressure tested |
The injector sealing ring is a small but critical part of the fuel system. It fills the gap between the injector body and the cylinder head bore, stopping high-pressure fuel and combustion gas from escaping.
In an excavator, the engine runs through constant load changes during digging, lifting and travel. The 800167182 seal must hold tight through heat cycles, pressure pulses and machine vibration.
The 4917500 reference is also described as a vibration isolator for the injector. In this role, the ring dampens injector movement and helps keep the injector seated correctly in the cylinder head.
A failed seal can allow carbon to build up around the injector tip, which may cause poor spray patterns, rough running and increased fuel consumption over time.
Replacing the seal during injector service is a low-cost preventive step. It avoids a second repair later and protects the cylinder head from pitting and carbon damage.
Keeping the injector seat clean and the seal fresh supports stable combustion and helps the engine start reliably in dusty, wet or cold working conditions.
The seal is built for chemical resistance, heat tolerance and a precise fit. The main features are listed below for quick comparison.
The 800167182 Injector Sealing Ring is intended for XCMG XE2000 hydraulic excavators and compatible Cummins QSK-series engines. It fits the original injector sealing groove and cylinder head seat.
The 4917500 cross-reference covers QSK60, QSK50, QSK38 and QSK19 engine families. This makes the seal suitable for large mining and construction excavators that use these engine platforms.
Typical use includes general excavation, trenching, loading, site preparation and quarry work. These jobs demand stable engine power through long shifts and changing loads.
Always confirm the OEM number and engine model before fitting. The 800167182 part is a direct replacement for the matching injector position and keeps sealing close to factory specification.
Park the excavator on level ground, lower the attachment and switch off the engine. Allow the engine to cool and disconnect the battery before working on the fuel system.
Clean the area around the injector to keep dirt out of the engine. Release fuel pressure, disconnect the fuel lines and electrical plugs, then remove the retaining parts.
Fit the new 800167182 sealing ring with clean contact surfaces and the correct seating depth. Seat the injector squarely and tighten the retaining parts to the workshop torque value.
Prime the fuel system, start the engine and check for leaks, smoke and smooth running. A short load test helps confirm the injector seal is holding correctly.
The 800167182 seal is produced to match the original bore dimensions. Inner diameter, outer diameter and cross-section are checked for correct fit and compression.
The fluororubber material is selected for diesel and heat resistance. This is important for excavators that work long shifts and are exposed to mud, water and dust.
Each batch is inspected for surface quality, material density and sealing performance. Sampling pressure tests help confirm no leakage under rated fuel pressure.
A correct seal protects the cylinder head from blow-by and carbon damage. This supports stable injection pressure and helps avoid fuel waste and power loss.
A failed injector seal can turn a strong excavator into a smoky, weak machine. It can also allow carbon to build up and damage the cylinder head if left unrepaired.
The 800167182 replacement seal offers a direct fit, heat-resistant material and a clean sealing surface. It is designed for the practical demands of XCMG excavators in earthmoving work.
For maintenance teams, stocking this seal number helps reduce waiting time when an injector fault appears. It supports planned service and quick replacement.
Choose the 800167182 4917500 Injector Sealing Ring for correct sealing, smooth engine running and dependable performance on compatible XCMG excavators. Confirm the OEM number before ordering.
