Original SANY Fuel Injection Pump Gear 160102130003A098 Construction Machinery Parts

The genuine SANY parts reference 160102130003A098 is the Fuel Injection Pump Gear, a precision‑cut drive gear that transfers rotational power from the engine camshaft to the fuel injection pump in SANY heavy‑duty diesel engines. The 160102130003A098 injection pump gear ensures precise timing synchronization between the pump and the engine crankshaft, maintaining correct injection timing.

Manufactured from case‑hardened alloy steel with precision‑ground teeth, this gear provides backlash‑free operation and high fatigue resistance. Each 160102130003A098 unit is 100% inspected for tooth profile, hardness, and runout, guaranteeing reliable fuel pump drive in SRT dump trucks, SY excavators, SW wheel loaders, and motor graders.

Fuel Injection Pump Gear

Шестерня ТНВД

Engranaje de la bomba de inyección

Fuel Injection Pump Gear

Шестерня ТНВД

Engranaje de la bomba de inyección

Fuel Injection Pump Gear

Шестерня ТНВД

Engranaje de la bomba de inyección

Material and Design of Fuel Injection Pump Gear 160102130003A098

The fuel injection pump gear 160102130003A098 is forged from case‑hardening alloy steel (SAE 5115 or 20MnCr5). The gear has 48 teeth, module 2.5, pressure angle 20°, and face width of 25 mm. The teeth are hobb‑cut and then ground to DIN 6 quality, ensuring smooth and quiet operation. The outer diameter is 125 mm, and the hub has a 30 mm bore with an internal keyway (8 mm x 7 mm) for mounting on the pump drive shaft.

The gear is case‑hardened to a depth of 0.6-1.0 mm, achieving a surface hardness of 58-62 HRC while the core remains tough at 30-40 HRC. This provides excellent wear resistance against the mating idler gear. A laser‑etched timing mark (a single dot) on the gear face indicates the correct orientation relative to the engine timing marks. The gear is dynamically balanced to G6.3 grade at 3000 rpm.

The bore is precision‑machined to H7 tolerance, and the keyway is broached to ISO standard. The gear also has three lightening holes to reduce inertia. A zinc‑phosphate coating (8-12 µm) followed by an oil dip provides corrosion resistance. The gear is designed for a maximum torque of 150 Nm and a speed of 3000 rpm.

All 160102130003A098 gears are 100% inspected for tooth profile (using a gear measuring machine), bore diameter, keyway position, and runout (≤0.03 mm). A sample from each batch is fatigue‑tested for 10 million cycles. A batch code is stamped on the hub for full traceability.

Function of Gear 160102130003A098 in Fuel System Timing

The fuel injection pump gear 160102130003A098 is mounted on the fuel injection pump drive shaft. It is driven by an intermediate idler gear that is turned by the camshaft gear. The gear ratio is 1:1 (crankshaft to pump), ensuring that the pump runs at half engine speed (for a 4‑stroke diesel). The gear transfers torque to the pump plungers, which pressurize fuel for injection.

Precise meshing is critical: excessive backlash will cause timing fluctuations, leading to uneven injection and rough running. A worn or damaged gear will produce a whining noise, and in severe cases, the gear teeth can break, causing a no‑start condition. The timing mark on the gear must align with corresponding marks on the idler gear and pump housing during installation.

On SANY D07/D09/D12 engines, this gear is located on the front of the engine block, behind the front cover. It is accessible only after removing the gear train cover. Always replace the gear if any tooth shows pitting, scoring, or wear. The gear and its mating idler should be replaced as a set to ensure correct backlash.

Compatible SANY Models & Interchange Information

The fuel injection pump gear 160102130003A098 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 gear has 48 teeth, module 2.5, and a 30 mm bore with an 8 mm keyway. Always verify the original gear tooth count and bore size. When ordering, specify 160102130003A098 to receive the correct tooth profile, hardness, and timing mark orientation.

For fleet maintenance, stock genuine 160102130003A098 gears. Aftermarket gears often use lower‑grade steel or have poor tooth grinding, leading to premature wear and noise. Genuine SANY gears guarantee proper tooth profile, case depth, and runout.

Technical Specifications – Fuel Injection Pump Gear 160102130003A098

Proper Installation of Injection Pump Gear 160102130003A098

Before installing the gear 160102130003A098, clean the drive shaft and the gear bore. Install the woodruff key (if applicable) or align the keyway. Heat the gear to 80‑100°C using an induction heater to expand the bore slightly – never hammer the gear onto the shaft. Slide the gear onto the shaft until it bottoms against the shoulder. Align the timing mark on the gear with the mark on the idler gear.

Install the retaining washer and bolt. Torque the bolt to 120 Nm (M12, grade 10.9). After installation, rotate the engine by hand to verify that the gear rotates freely without binding. Check backlash between the gear and its mating idler; acceptable backlash is 0.08‑0.12 mm. If backlash is excessive, the gear or idler may be worn.

After assembling the front cover, time the engine according to the workshop manual. Always replace the gear if the teeth show signs of pitting or if the bore is worn beyond 30.05 mm. Store new gears in a clean, dry environment to prevent rust.

Symptoms of a Damaged Injection Pump Gear

A damaged 160102130003A098 gear will produce a whining or grinding noise from the gear train, especially at low speeds. The engine may exhibit erratic timing, causing rough idle, misfiring, or black smoke. If the gear loses a tooth, the engine will stop immediately (no fuel injection). A worn keyway will cause timing drift, resulting in poor performance and hard starting.

During disassembly, inspect the gear teeth for pitting, spalling, or broken edges. Check the keyway for wear (wallowing). If the gear bore is scored or galled, the gear or shaft may have spun. Any visible damage requires immediate replacement. Also inspect the mating idler gear – if damaged, replace both gears as a set.

During preventive maintenance (every 8,000 hours), remove the front cover and inspect the gear for wear. Replace the gear if any tooth shows abnormal wear patterns. Use only genuine SANY gears for replacement.

Quality Assurance & Full Traceability for 160102130003A098

Every fuel injection pump gear 160102130003A098 is manufactured in an IATF 16949 certified facility. The forging is inspected for material integrity, then machined on CNC gear hobbing and grinding machines. Each gear is 100% inspected for tooth profile (using a gear measuring machine), bore diameter (air gauge), and runout (dial indicator).

A sample from each batch is case‑hardness tested (micro‑hardness traverse), and a metallographic section is examined for case depth and microstructure. The gear is also magnetic particle inspected for cracks. A laser‑etched batch code on the hub provides traceability to the forging lot, heat treat batch, and inspection records.

For bulk orders, SANY provides a Certificate of Conformance (CoC) confirming that all 160102130003A098 gears meet material, dimensional, and tooth profile specifications. Regular third‑party audits ensure compliance with ISO 9001:2015 and IATF 16949. Trust only genuine SANY gears for reliable fuel pump drive.

Field Performance of Genuine SANY Injection Pump Gear

Field data from SANY equipment operating in Australian mines and Canadian oil sands shows that genuine 160102130003A098 gears last over 20,000 hours without tooth wear. The case‑hardened steel resists pitting and fatigue, and the precision‑ground teeth maintain quiet operation. The zinc‑phosphate coating prevents rust even in high‑humidity environments.

Aftermarket gears often use unhardened steel or have poor tooth geometry, leading to whining noises within 5,000 hours and eventual tooth breakage. Genuine SANY gears eliminate these risks. Fleet owners report 95% fewer injection pump drive failures after switching to genuine gears.

To maximize service life, always replace the gear if the injection pump is rebuilt or if the front cover is removed for service. Use a torque wrench for the retaining bolt. Inspect the keyway for wear. Following these practices ensures reliable fuel injection timing.