OEM Replacement Parts
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This high-performance C4.2 Gear Pump Pilot Pump (Part Number: 5179726) is specifically designed for Caterpillar series diesel engines, ensuring reliable hydraulic power for excavator applications. As a critical component in the engine’s hydraulic system, this pilot pump delivers precise oil flow to control valves and actuators. We serve a global clientele, with major markets including North America, Europe, Asia-Pacific, the Middle East, and South America. Our products are shipped to industrial hubs worldwide, including Los Angeles, Rotterdam, Dubai, Singapore, and Shanghai.
| Specification | Detail |
|---|---|
| Part Number | 5179726 |
| Product Type | Gear Pilot Pump |
| Engine Model | Caterpillar C4.2 |
| Material | High-Strength Alloy Steel |
| Application | Excavator Hydraulic System |
| Displacement | Standard OEM Specification |
| Operating Pressure | Up to 250 bar (3,625 psi) |
| Mounting Type | Flange Mount |
| Warranty | 12 Months |
This pump is a direct replacement for the following OEM part numbers:
Note: Please verify compatibility with your specific engine serial number before ordering.
Q1: Is this pump a direct replacement for the original Caterpillar 5179726?
A: Yes, this gear pilot pump is manufactured to match OEM specifications exactly. It is designed for direct bolt-on installation without modifications. However, we recommend checking your engine serial number to ensure compatibility with the C4.2 model.
Q2: What are common signs that this pilot pump needs replacement?
A: Symptoms include erratic or slow hydraulic movements, low pilot pressure (below 250 bar), unusual noise from the pump, or visible oil leaks around the pump housing. Regular inspection every 2,000 operating hours is advised.
Q3: Can this pump be used in other Caterpillar engines besides the C4.2?
A: While primarily designed for the C4.2, it may fit certain C4.4 engine variants used in excavators like the 320D2. For non-standard applications, please provide your engine model and serial number for cross-reference verification.
1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.
2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.
3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.
4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.
5. Scientific ERP system, easy and fast to locate the parts that customer needs.
6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.
1. Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).
2. Once we get confirmation of payment, we will ship products in 2 days.
3. Our packaging is standard export wooden box or others as your requirement.
4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.
A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.
A: Normally we can supply any quantity if we have in stock.
A: We accept Western Union, T/T, Paypal.
A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.
A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .
A: In the beginning , We will communicate with clients in details to understand what they need .
Before packing , We will check the products and send photos to clients .After confirmation ,
We will packing products well to avoid damage . Once we get tracking number ,
We will send it to customer and keep contact in with clients .
