CATEngine Parts

201-6699 Belt Tensioner — Cat

This is a belt tensioner, an essential component that maintains the correct tension on the engine's accessory drive belt. It ensures optimal performance of components driven by the belt, such as the alternator, water pump, and air conditioning compressor, meeting CAT's specifications for consistent tension. A worn or failed belt tensioner can manifest as a squealing belt noise, premature belt wear, or intermittent operation of accessories driven by the belt.

Belt Tensioner – Part No 201-6699 – 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

IST.', };

Related CAT Parts

From the same category — may also be needed

263-9001
Harness Assembly
7w-2329
Gasket
2344816
Piston
7c-3821-7e-3568
Core Assembly
377-0607-tm88302
Solenoid Valve
515-8572
Quick Coupler Link

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 TypeBelt Tensioner Assembly
MaterialSteel, rubber
ApplicationEngine accessory drive belt system
Service LifeReplace every 2,000-3,000 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing belt tensioner often produces a distinct squealing or chirping sound from the engine compartment, especially during startup or acceleration. If the tensioner fails completely, the drive belt can slip or come off, leading to a loss of power to critical components like the alternator and water pump, potentially causing engine shutdown.

Installation Tip

Ensure the mounting bolt is torqued to the manufacturer's specification to prevent premature failure or damage. Always release tension carefully when removing the old unit to avoid injury.

Service Note

Inspect the drive belt for wear, cracks, or glazing, and check all accessory pulleys for proper alignment and bearing condition when replacing the belt tensioner.