CATEngine Parts

7W4070 Gear — Cat 120H 120H es

This gear is a vital component within the engine's power transmission system, responsible for transferring rotational force. Manufactured to precise specifications, it offers superior wear resistance and durability compared to a worn or damaged original gear. Operators might observe increased gear noise, rougher operation, or a noticeable loss of power when this gear begins to fail.

Gear – Part No 7W4070 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

WhatsApp for Price & Availability☎ Call Mumbai Office

Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

M IST.', };

Related CAT Parts

From the same category — may also be needed

5i7674
Gear
20r-5392-232-1167
Fuel Injector
094-6377
Coupling Assy
161-4110
Oil Pump
259-0625-188-4177
Boom Cylinder Seal Kit
1306763
Piston As

Browse all CAT Engine Parts →

Ship This Part To Your Location

DubaiSaudi ArabiaNigeriaKenyaSouth AfricaBangladeshMalaysiaGhanaQatarEgypt
India
MaharashtraGujaratTamil NaduRajasthanKarnatakaTelangana

Full shipping information on regional pages · Air freight 2–12 days · GST invoice for India

Installation & Application Notes

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeGear
MaterialHardened steel
ApplicationEngine power transmission
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of a failing gear may be an audible whining or grinding noise during operation. If ignored, this noise will likely intensify, and the gear may begin to skip teeth, leading to intermittent power loss. Continued use risks severe damage to the gear teeth and surrounding components.

Installation Tip

Ensure proper lubrication is applied to the gear teeth and mating surfaces before assembly. Misalignment during installation is a common cause of premature wear.

Service Note

Inspect the corresponding pinion gear and bearings for wear and damage.