AULINK Raw Sea Water Pump Replacement with Original Impeller and NSK Bearing — Complete Assembly with Gaskets

AULINK 21214596 3862487 is a factory-direct raw seawater pump assembly featuring the original impeller and a high-grade NSK bearing for reliable marine cooling and circulation.

This replacement seawater pump is built for boats and marine engines that need corrosion-resistant components and tight tolerances for uninterrupted cooling system performance. Manufactured under TS16949 processes, the unit arrives with all required gaskets and seals to simplify installation and reduce downtime. The combination of a genuine impeller and a premium NSK bearing aims to extend service life and lower vibration and leakage risks compared with worn or generic aftermarket parts.

How does this pump improve engine cooling reliability?

The pump uses a purpose-matched impeller and a precision NSK bearing to maintain steady flow and resist premature wear caused by saltwater. A unitized seal design helps prevent leaks at the shaft interface while polished housing surfaces reduce corrosion buildup that can slow flow.

• Original-style impeller for consistent vane geometry and flow rate
• NSK bearing reduces axial play and vibration under load
• Unitized mechanical seal minimizes shaft leakage in seawater
• Vibration-polished, corrosion-resistant housing for longer service intervals

What components are included to make installation straightforward?

The pump ship contains the core assembly plus the small parts installers commonly need, cutting out extra sourcing and guesswork. Gaskets and seals matched to the unit ensure the mating surfaces seal correctly and help prevent post-install leaks.

• Complete pump assembly with original impeller installed
• All necessary gaskets and O-rings for flange and cover connections
• Pre-tested unit for function and leakage before shipment
• Clear fitment to the listed part numbers to match factory mounting points

How does quality control and warranty protect my purchase?

Produced in TS16949-certified facilities, each pump undergoes function and leakage testing to catch defects before shipping. A one-year or 50,000 km support window gives you a defined period for after-sales service and warranty coverage.

• Manufactured under automotive-quality TS16949 standards
• 100% functional and leak testing on every unit
• Factory-direct sales channel reduces middleman markups
• 1 year or 50,000 km service support for peace of mind

How will this pump perform compared to a worn OEM unit?

Replacing an aged pump with this AULINK assembly restores original flow characteristics and reduces noise and vibration from bearing wear. The upgraded bearing and polished housing also lower the chance of early failure from corrosive seawater exposure.

• Restores original flow efficiency for better cooling performance
• Lower vibration and quieter operation with NSK bearing
• Corrosion-resistant finish helps maintain clear cooling passages
• Factory-tested to minimize installation surprises

Who is this for: Marine technicians, engine owners, and fleet managers seeking a reliable, direct-replacement seawater pump that balances authentic componentry with modern bearing quality. Ideal for vessels and engines that match the listed part numbers and for anyone wanting a ready-to-install pump with gaskets included and manufacturer-backed testing and support.