CATEngine Parts

229-9134 A C Expansion Valve — Cat

This AC expansion valve is a critical component of the vehicle's air conditioning system, regulating refrigerant flow into the evaporator. It ensures optimal cooling performance by precisely controlling the amount of refrigerant based on system temperature and pressure, preventing over-expansion or insufficient cooling. A failing valve may result in inconsistent cabin temperatures, a noticeable lack of cooling, or the AC system cycling on and off erratically.

A C Expansion Valve – Part No 229-9134 – 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

;

Related CAT Parts

From the same category — may also be needed

1878391
Oil Cooler
1032858
Ring-Set (Os=.25Mm)
227-2911
6 Pcs Injector Sleeve
1744909
Solenoid Valve
375-0740-375-0741
Arm Cylinder Seal Kit
17504542s5658
Head Bolt Washer Hard

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 TypeAC Expansion Valve
MaterialBrass and Aluminum
ApplicationAir Conditioning System
Service LifeReplace every 5,000 hrs or as needed
CompatibilityCAT 3126B, 3064, 3066, C7, C6.4, C4.2
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing expansion valve is often inconsistent cabin cooling, with temperatures fluctuating significantly. If left unaddressed, the system may cease to cool altogether, leading to discomfort and potential damage to other AC components due to improper refrigerant pressures. Continued operation with a faulty valve risks compressor damage from liquid slugging or insufficient lubrication.

Installation Tip

Ensure the AC system is properly evacuated before removing the old valve to prevent refrigerant loss and contamination. Avoid overtightening the valve fittings, as this can damage the valve body or the system's hard lines.

Service Note

Always inspect the receiver drier and the AC system's overall cleanliness when replacing the expansion valve.