Original SANY Nozzle Washer 160102130003A102 Construction Machinery Parts

The genuine SANY parts reference 160102130003A102 is the Nozzle Washer, a precision‑machined copper sealing ring used to create a gas‑tight seal between the fuel injector nozzle and the cylinder head in SANY heavy‑duty diesel engines. The 160102130003A102 nozzle washer ensures that combustion gases do not leak past the injector, preventing power loss, injector damage, and carbon buildup.

Manufactured from high‑purity annealed copper with a controlled hardness, this washer deforms elastically under the injector clamp load to fill micro‑imperfections in the sealing surfaces. Each 160102130003A102 unit is 100% inspected for inner/outer diameter, thickness, and surface finish, guaranteeing reliable sealing in SRT dump trucks, SY excavators, SW wheel loaders, and motor graders.

Nozzle Washer

Медная прокладка форсунки

Junta de inyector

Nozzle Washer

Медная прокладка форсунки

Junta de inyector

Nozzle Washer

Медная прокладка форсунки

Junta de inyector

Material and Design of Nozzle Washer 160102130003A102

The nozzle washer 160102130003A102 is stamped from high‑purity copper (Cu‑ETP, CW004A) and annealed to achieve a hardness of 40-60 HV. The washer has an outer diameter of 14.0 mm, an inner diameter of 10.0 mm, and a thickness of 1.5 mm ±0.05 mm. The edges are deburred to prevent scratching the nozzle or cylinder head. The surface is clean and free from oxide, with a matte finish from the annealing process.

When the injector clamp is torqued to 25 Nm, the copper washer is compressed between the injector nozzle and the cylinder head seat. The soft copper deforms plastically, filling any surface irregularities and creating a gas‑tight seal that withstands combustion pressures up to 200 bar and temperatures exceeding 500°C. The washer is designed for single use; once compressed, it work‑hardens and cannot be reused.

The material is fully compatible with diesel fuel, engine oil, and coolant. Unlike steel washers, copper does not rust and will not damage the cylinder head seat. The washer is supplied in sealed bags to prevent oxidation. Each 160102130003A102 washer is 100% inspected for ID, OD, and thickness using laser gauges. A sample from each batch is hardness‑tested (Vickers) and subjected to a compression test to verify consistent crushing behavior.

All washers are batch‑traceable. The packaging includes the batch number and manufacturing date. Shelf life is unlimited if stored in a dry environment.

Function of Nozzle Washer 160102130003A102 in Fuel Injection System

The nozzle washer 160102130003A102 is installed between the injector nozzle and the cylinder head seat. Its sole purpose is to seal the combustion chamber from the outside. When the engine is running, combustion gases reach pressures of 150‑200 bar and temperatures of 500‑800°C. A failed or missing washer will cause a knocking sound (combustion gas leak), soot deposits around the injector, loss of power, and eventual injector seizure.

The washer also acts as a heat conductor, transferring heat from the injector nozzle to the cylinder head. A thick or hard washer can cause the injector to run too hot. The genuine SANY washer has the correct thickness and hardness to ensure proper sealing and heat transfer. Always replace the washer when the injector is removed, even if it looks undamaged – the copper has taken a permanent set.

On SANY D07/D09/D12 engines, each cylinder uses one nozzle washer. The washer is placed on the injector nozzle tip before inserting the injector into the bore. Do not use any additional sealant – the copper washer alone provides the seal.

Compatible SANY Models & Interchange Information

The nozzle washer 160102130003A102 is used on SANY D07, D09, and D12 series diesel engines. These engines power SRT dump trucks (SRT45, SRT55, SRT95, SRT115), SY excavators (SY215, SY335, SY395, SY500H), SW wheel loaders (SW305, SW405, SW465), and SMG motor graders (SMG200, SMG220). It is also fitted on SANY concrete pump trucks, reach stackers, and generator sets.

The washer dimensions are 14 mm OD x 10 mm ID x 1.5 mm thick. It fits injectors with a 12 mm nozzle body. Always verify the original washer size. When ordering, specify 160102130003A102 to receive the correct copper grade, hardness, and dimensions.

For fleet maintenance, stock genuine 160102130003A102 washers. Aftermarket washers often use lower‑purity copper or incorrect hardness (too soft or too hard), leading to leaks or injector damage. Genuine SANY washers guarantee proper sealing and long service life.

Technical Specifications – Nozzle Washer 160102130003A102

Proper Installation of Nozzle Washer 160102130003A102

Before installing the nozzle washer 160102130003A102, clean the injector nozzle tip and the cylinder head seat. Remove all carbon deposits – a special seat reamer may be required. Place the new washer onto the injector nozzle, ensuring it sits flat against the shoulder. Insert the injector into the bore by hand; do not force it.

Install the injector clamp (60352132) and torque the clamp bolts to 25 Nm in a cross pattern. The copper washer will crush uniformly. Do not reuse the washer if the injector is removed for any reason – the compressed washer will not seal again. Always use a new washer.

After installation, run the engine and listen for any knocking (combustion gas leakage). Check for soot around the injector after a few minutes of running. If any leakage is detected, remove the injector and inspect the washer – it may be damaged or missing. Replace with a new 160102130003A102 and re‑torque.

Symptoms of a Failed Nozzle Washer 160102130003A102

A failed 160102130003A102 washer causes a distinctive knocking or hissing sound from the injector area, especially at idle. Black soot deposits will appear around the injector body and on the cylinder head. The engine may misfire, lose power, and produce excessive black smoke. Fuel consumption may increase.

If the washer is missing entirely, hot combustion gases will erode the cylinder head seat, requiring expensive repair. A washer that is too hard (not annealed) may not deform enough, leading to leakage. A washer that is too soft may extrude into the bore, also causing leaks. Always use genuine SANY washers with the correct hardness.

During preventive maintenance, always replace the nozzle washer whenever the injector is removed. Do not reuse washers. Inspect the cylinder head seat for pitting or erosion – if damaged, repair with a seat cutter before installing a new washer.

Quality Assurance & Full Traceability for 160102130003A102

Every nozzle washer 160102130003A102 is manufactured in an IATF 16949 certified facility. The copper is sourced from certified mills and tested for purity (≥99.9% Cu). The stamping process is followed by annealing in a controlled atmosphere furnace. Each batch is tested for hardness (Vickers), thickness, and inner/outer diameter using optical gauges.

A sample from each batch is compression‑tested to simulate injector clamp load; the washer must compress uniformly without cracking. No surface oxides are allowed. A batch number printed on the packaging provides traceability to the copper lot, annealing batch, and inspection records.

For bulk orders, SANY provides a Certificate of Conformance (CoC) confirming that all 160102130003A102 washers meet material, dimensional, and hardness specifications. Regular third‑party audits ensure compliance with ISO 9001:2015 and IATF 16949. Use only genuine SANY washers for reliable injector sealing.

Field Performance of Genuine SANY Nozzle Washer

Field data from SANY equipment operating in Australian mines and Brazilian sugarcane fields shows that genuine 160102130003A102 washers provide a leak‑free seal for the full injector service interval (up to 12,000 hours). The copper maintains its sealing properties even under extreme thermal cycling, and the controlled hardness ensures consistent deformation without cracking.

Aftermarket washers often use lower‑grade copper or incorrect annealing, leading to leakage within 2,000‑4,000 hours. Some aftermarket washers are made of steel or aluminum, which can damage the cylinder head seat. Genuine SANY washers eliminate these risks. Fleet owners report 95% fewer injector leak complaints after switching to genuine washers.

To maximize service life, always replace the washer when the injector is serviced. Use a torque wrench for the clamp bolts. Store washers in sealed bags to prevent oxidation. Following these practices ensures reliable combustion sealing and engine performance.