PACKAGE: GENUINE AND NEW PACKAGE
SHIPPING: WE CAN DELIVERY BY DHL, TNT, FEDEX, UPS, SF, EMS EXPRESS.
WARRANTY: GENUINE AND NEW PART IS THE GUARANTEE.
RETURN IS ACCEPTABLE IF YOU GET NON-GENUINE AND NON-NEW PARTS.
Growshine International: Genuine Caterpillar Excavator Auxiliary Sea Water Pump 425-5421 and 4255421 for C1.5/C2.2 Engines
Need Customized Parts? OEM Development Services!
If you require bespoke solutions for Sea Water Pumps, Oil Coolers, or any specialized EGR Cooling Tubes mentioned below, Growshine International offers comprehensive Custom Development and OEM services. Send us your specifications, and we will engineer and supply high-quality, precision-matched replacement and auxiliary components for your equipment.
Detailed Product Overview (425-5421)
This listing features the Original and Brand New Genuine Caterpillar Auxiliary Sea Water Pump, vital for the engine cooling systems in various Caterpillar Excavator models. The official Caterpillar part number is 425-5421, and for quick search queries, we also reference it as 4255421. This specific water pump is engineered for the reliable C1.5 and C2.2 series engines, ensuring optimal performance and longevity for your heavy machinery. As Growshine International, we specialize in the import and export of high-quality Construction Machinery Accessories and spare parts globally, making us your trusted source for genuine Cat components.
The Sea Water Pump 425-5421 / 4255421 plays a crucial role in maintaining engine temperature, especially in marine or high-demand excavator applications. Growshine International (格莳国际) serves as a leading supplier for a broad range of products, including Heavy Truck Parts, essential Agricultural Machine Components, and various Automotive Accessories. By integrating the supply chain for these diverse sectors, we ensure that whether you need an Auxiliary Sea Water Pump for a Cat excavator or a specialized cooling component for a heavy-duty truck, our inventory meets your exact needs, guaranteed genuine and new.
Investing in genuine Caterpillar components, such as the 425-5421 pump, is essential for minimizing downtime and maximizing the efficiency of your equipment. Inferior aftermarket parts can lead to premature failure, costly repairs, and reduced engine lifespan. Growshine International's commitment to quality ensures every part we export, from this Sea Water Pump to various Oil Coolers and engine accessories, is vetted and certified. Search engine optimization is critical for us; customers looking for "Original Cat C1.5 C2.2 water pump" or "reliable Excavator Parts supplier" will find our genuine products easily accessible.
Understanding the Auxiliary Sea Water Pump
The Auxiliary Sea Water Pump 425-5421 (or 4255421) is a crucial component in the cooling circuit of smaller Caterpillar diesel engines like the C1.5 and C2.2. Its primary function is to circulate raw water (often sea water or river water, depending on the machine's operating environment) through the engine's heat exchanger or cooler. This process draws heat away from the closed-loop coolant system. Unlike the main engine water pump, which circulates coolant, the auxiliary sea water pump handles the external cooling medium, preventing overheating and engine damage. Regular inspection and replacement with genuine parts like this 425-5421 are vital for sustained operation in harsh conditions.
Essential Equipment Component Glossary
Example: Caterpillar 330D Hydraulic Pump
Example: Komatsu PC450-7 Fan Motor
Example: Cummins ISX15 Turbocharger
Example: Freightliner Cascadia King Pin Kit
Example: JCB 3CX Fuel Injector
Example: John Deere 8430 Differential Assembly
Example: Toyota Camry Brake Caliper
Example: Hitachi ZX200 Track Link Assembly
Example: Kubota M7060 PTO Shaft
Example: Caterpillar 988K Transmission Oil Cooler
Common Equipment Failure and Solution:
Heavy Truck: Engine Overheating in a Cummins ISL9
Failure Description: A heavy-duty truck equipped with a Cummins ISL9 engine frequently overheats when climbing steep grades or operating under heavy load. The engine temperature gauge spikes rapidly, and the coolant level drops, though no visible external leaks are present.
Probable Cause: A likely cause is a failure of the Engine Oil Cooler Core (a part we supply!), often due to internal corrosion or pressure differential, leading to cross-contamination between oil and coolant. Alternatively, a faulty radiator cap or thermostat could be contributing.
Processing Solution:
Diagnosis: Perform a pressure test on the cooling system. If oil is found in the coolant or coolant in the oil (milky oil), immediate replacement of the Engine Oil Cooler is necessary.
Replacement: Install a genuine or high-quality OEM Oil Cooler Core, ensuring all gaskets and O-rings are correctly seated. Always flush both the oil and cooling systems thoroughly to remove contaminants before refilling with new fluids.
Preventive Action: Monitor coolant quality and maintain proper coolant chemical balance to prevent future corrosion.
Key Search Terms for Global Procurement
Explore KALMAR Container Handling Parts
Need parts for your port equipment? Click below to view the full KALMAR product list:
View KALMAR Products List →Global Turbocharger Brands Available
We supply high-performance turbochargers from leading brands like Garrett, Holset, BorgWarner, 3K, Schwitzer, IHI, Mitsubishi, Hitachi, CZ, Toyota, Komatsu, Bosch Mahle. Click to explore our catalog:
Turbocharger Catalog →Translated Product Titles and Part Numbers
| English Title | Part Number(s) |
|---|---|
| Caterpillar Heat Exchanger | 133-0125, 1330125 |
| Caterpillar 345B / 3176 Engine Oil Cooler | 115-4517, 1154517, 114-4514, 1144514 |
| Caterpillar C15 Air Compressor Oil Cooler | 133-0125, 1330125 |
| Engine Oil Radiator | 135-5577, 1355577, 136-6694, 1366694 |
| Caterpillar Engine Oil Radiator | 4W-4956, 4W4956 |
| Caterpillar C15 Oil Cooler | 133-0125, 1330125, 4W-6043, 4W6043, 223-7963, 2237963 |
| Caterpillar 3406 Oil Radiator | 4W-6047, 4W6047, 7C-0145, 7C0145 |
| Caterpillar Cooler | 2P-8797, 2P8797 |
| Caterpillar 3512 Oil Cooler | 4W-4980, 4W4980, 7N-8599, 7N8599 |
| Caterpillar C13 Cooler | 379-3436, 3793436, 359-1636, 3591636 |
| Caterpillar C13 Oil Radiator | 223-7962, 2237962 |
| Caterpillar C15 Oil Radiator | 133-0125, 1330125, 4W-6043, 4W6043, 2237962 |
| Caterpillar 3412 Cooler | 4W-6047, 4W6047 |
| Caterpillar 3306 Cooler | 7N-0165, 7N0165, 7S-6394, 7S6394 |
| Caterpillar 3406 Oil Cooler | 4N-6972, 4N6972 |
| Oil Cooler Core | 7C-0145, 7C0145 |
| Caterpillar Oil Cooler | 2W-9979, 2W9979, 2W-9978, 2W9978 |
| Caterpillar Hydraulic Oil Cooler | 7N-0128, 7N0128 |
| Caterpillar C13 Oil Radiator | 236-8745, 2368745 |
| Hitachi ZX120-3, 4JJ1 EGR Cooling Tube | 8980681641 |
| Hitachi ZAX450-3, Isuzu 6WG1 EGR Cooling Tube | 1161270214 |
| Kato DH1430, 6M60 EGR Cooling Tube | ME305064, 1056656-1001, 10566561001 |
| Isuzu EGR Cooling Tube | 8-98006995-0, 8980069950 |
| JCB Engine EGR Cooling Tube | 30/921200, 30921200, 30-921200 |
| Cummins NT855 Oil Cooler | 218754 |
| Komatsu NH220 Oil Radiator | 6693-62-9213, 6693629213 |
| Transmission Oil Cooler | 30/921200, 30921200, 30-921200, 30/919900, 30919900, 30-919900, 30/925441, 30925441, 30-925441 |
| Cummins Oil Radiator | 110848, 208149 |
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