Cummins N14 Piston Cooling Nozzle 4058947 NT855 Engine Cooling System Part

Product Details

Product Overview

This is a genuine-specification Cummins N14 Piston Cooling Nozzle, identified by OEM part number 4058947. Designed for critical engine thermal management, this nozzle directs a precise flow of oil to the underside of the piston crown, ensuring optimal temperature control during high-load operations. While the part number 4058947 is commonly associated with the Cummins N14 engine platform, the technical data indicates compatibility with the NT855 engine model, making it a versatile component for a range of heavy-duty applications.

Manufactured to meet OEM standards, this cooling nozzle is essential for preventing piston overheating, reducing thermal stress, and extending engine service life. It is a direct replacement part for refrigeration, heat exchange, and industrial power units where reliable piston cooling is non-negotiable.

Key Features & Benefits

• Precision Oil Flow: Engineered to deliver a targeted oil spray for maximum piston cooling efficiency, reducing the risk of seizure and bore polishing.
• OEM Specification: Manufactured to match the exact dimensions and flow rate of the original Cummins 4058947 nozzle, ensuring straightforward installation without modifications.
• Durable Construction: Built from high-strength materials to withstand extreme engine temperatures and pressure cycles found in marine, mining, and industrial environments.
• Enhanced Engine Protection: Critical for maintaining piston integrity under heavy loads, which directly contributes to longer engine overhaul intervals.
• Easy Identification: The part number 4058947 is clearly marked, eliminating fitment guesswork for mechanics and parts distributors.
• Reliable Supply: Stock is available for immediate dispatch, supporting both scheduled maintenance and urgent breakdown repairs.

Technical Specifications

OEM Cross-Reference

This piston cooling nozzle directly replaces the following OEM part numbers:

• Cummins 4058947 (Primary)
• 4058947 (Chongqing Cummins Engine Co., Ltd. equivalent)

Note: This part is a direct cross for the original Cummins N14 and NT855 cooling nozzle. Always verify your existing part number before ordering.

Compatibility

This cooling nozzle is commonly used for the following applications:

• Engine Models: Cummins N14, Cummins NT855
• Industrial Applications: Marine propulsion systems, Mining equipment (haul trucks, loaders), Construction machinery, Refrigeration units, Heat exchange power packs, Generator sets

Fitment is inferred from the original equipment application. Please consult your engine service manual or compare with your existing nozzle to confirm compatibility.

Global Supply & Distribution

We offer worldwide shipping from our central warehouse in Chongqing, China, a major industrial and logistics hub. Our distribution network ensures reliable delivery to key markets including:

• North America: Fast shipping to ports in Los Angeles, Houston, and New York for US and Canadian customers.
• Europe: Efficient logistics to Rotterdam, Hamburg, and Felixstowe.
• Asia-Pacific: Rapid delivery to Singapore, Sydney, and Dubai.
• Middle East & Africa: Regular shipments to Jebel Ali, Dammam, and Durban.

We have extensive experience with international trade documentation, including customs clearance support for B2B shipments. Whether you need a single set for maintenance or bulk orders for fleet management, we can meet your delivery schedule.

Quality Assurance

• Manufacturing Standards: Produced under strict quality control systems in line with ISO standards for diesel engine components.
• Testing: Each batch undergoes outgoing inspection, including dimensional checks and flow rate verification. A machinery test report is available upon request.
• Video Inspection: We can provide video evidence of the parts before shipment for your verification.
• Warranty: All parts come with a 1-year warranty against manufacturing defects, providing peace of mind for your heavy-duty operations.

FAQ

Q: Will this 4058947 nozzle fit my Cummins N14 engine?
A: Yes, the part number 4058947 is the standard OEM piston cooling nozzle for the Cummins N14 series. However, we also note compatibility with the NT855 model. We recommend checking your engine’s parts manual or comparing the physical dimensions (length and spray angle) of your existing nozzle to ensure a perfect match.

Q: What is the recommended installation procedure for this cooling nozzle?
A: Installation involves removing the old nozzle and replacing it with the new 4058947 unit. Ensure the oil gallery is clean and free of debris before insertion. Tighten to the manufacturer’s specified torque (typically 15-20 ft-lbs for these nozzles, but always consult your engine service manual). After installation, prime the lubrication system and check for proper oil flow before running the engine under load.

Q: How often should the piston cooling nozzles be replaced?
A: It is good practice to replace cooling nozzles during a major engine overhaul (top-end or in-frame) to prevent failure from fatigue or blockage. If you notice a drop in oil pressure or increased cylinder temperatures, inspect the nozzles immediately. For high-hour engines in mining or marine applications, replacement every 8,000-10,000 hours is common.