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Sea Water Pump 21212799 3812519, marine-grade aluminum housing, NBR impeller — replacement for Volvo Penta 4.3L, 5.0L, 5.7L engines.
Real-time stock confirmation and shipping window provided before you commit.
Stocked and Ready — Guangzhou warehouse holds this Sea Water Pump 21212799 3812519 for same-day dispatch, ending vessel downtime while other suppliers confirm lead times.
| Parameter | Value |
|---|---|
| Part Number | 21212799 3812519 |
| Product Type | Water Pump |
| Cross-Reference | 21212799, 3812519 (reference only) |
| Machine Fitment | Volvo Penta 4.3L, 5.0L, 5.7L series (4.3GL-G, 5.0GXi, 5.7OSi, V6, V8 variants) |
| Part Name | Sea Water Pump |
| Condition | New Aftermarket |
| Warranty | 3–12 months against manufacturing defects |
| Housing Material | Marine-grade aluminum alloy (A380) |
| Impeller Material | NBR rubber vanes bonded to stainless steel hub |
| Shaft Runout | ≤0.05 mm per ISO 21940-11 |
| Gasket Surface Flatness | ±0.02 mm CNC-machined |
| Port Surface Finish | ISO 1302 Ra 3.2 μm |
| Flow Rate | 12.5 L/min at 3,200 rpm |
| Pressure | 0.8 bar at full load |
| MOQ | 1 piece |
| Standards | ISO 9001, ISO 21940-11, ISO 1302 |
| Failure Symptom | Replacement Urgency |
|---|---|
| Engine overheating at cruising RPM | Immediate — vessel cannot operate without raw water cooling |
| Reduced water flow from exhaust | High — indicates impeller degradation or housing corrosion |
| Visible weeping from pump shaft seal | Urgent — seal failure precedes bearing damage |
| Unusual grinding noise from front of engine | Critical — bearing failure risks shaft seizure |
| Scheduled impeller replacement interval | Standard — inspect housing and shaft during service |
In-stock Sea Water Pump 21212799 3812519 ships same day when ordered before cutoff.
A vessel sitting idle at the dock burns contractual deadlines and crew costs while a replacement pump crosses an ocean. Most marine cooling failures occur without warning during peak operating season, when lead times stretch and local marine suppliers show empty shelves. Waiting weeks for a backordered component while the engine overheats on first restart turns a minor repair into a schedule-destroying event [NEED_CITE: marine vessel downtime cost factors in commercial operations]. We maintain Guangzhou warehouse inventory specifically for these high-failure marine cooling items, dispatching single units when a repair yard needs one pump for one downed engine rather than a full case.
The Sea Water Pump 21212799 3812519 sits on the shelf, not in a catalog. When a workshop supervisor sends a photo of a corroded nameplate at night, our team cross-checks engine serial ranges against the fitment list and confirms stock status within hours. This pump covers Volvo Penta 4.3L, 5.0L, and 5.7L variants from GL through OSi series, eliminating the guesswork when the original tag is painted over or unreadable. One piece ships when one vessel needs saving, with no minimum order threshold blocking an emergency purchase.
Express courier, air freight, and sea freight each serve different urgencies. A repair yard facing a Tuesday launch deadline needs the pump on a next-flight-out service; a fleet operator restocking the spares locker accepts a slower, lower-cost transit. We quote arrival windows alongside the product confirmation, not after the order is placed and paid. Packaging suits the chosen method — reinforced for air express handling, palletized for sea consolidation — so the Sea Water Pump 21212799 3812519 arrives ready for the bench, not needing repackaging or damage claims [NEED_CITE: marine parts packaging standards for international air freight].
Marine-grade A380 aluminum alloy resists the saltwater environment that destroys standard automotive housings within months. The NBR rubber impeller vanes flex past debris ingestion without snapping, while the stainless steel hub prevents the corrosion-welding that makes old impellers impossible to extract. Shaft runout held to 0.05 mm per ISO 21940-11 keeps the seal face square, extending service life before weeping begins. CNC-machined gasket surfaces at ±0.02 mm flatness eliminate the coolant leaks that force mechanics to re-pull the pump after first sea trial. Flow rate of 12.5 L/min at rated RPM maintains heat exchange capacity across the full operating range of these V6 and V8 blocks.
A pump ordered from a catalog listing that omits variant details arrives with ports clocked wrong or the wrong pulley alignment. The vessel stays down while the corect unit crosses an ocean, and the return shipment adds customs complexity and delay. Some mechanics force-fit a close-match pump, accepting misalignment that destroys the front seal within operating hours. This Sea Water Pump 21212799 3812519 verification process catches these mismatches before dispatch, using engine model and serial range to confirm the exact variant needed [NEED_CITE: marine engine cooling system variant identification challenges].
Own production lines and qualified partner manufacturing operate under unified quality control and a single warranty account. Eight product categories mean associated cooling system components — thermostats, hoses, zinc anodes, gasket sets — consolidate into one shipment from Guangzhou stock. Part identification works from a part number, a machine model, or a photograph of a faded plate, whichever the buyer holds. Cross-reference verification catches superseded numbers and alternate references before the wrong unit ships. Sample units are available for fitment confirmation before a fleet commits to bulk stocking. Technical staff confirm compatibility and grade rather than taking orders blindly.
Provide the engine model designation from the vessel registry or a photograph of the existing pump and nameplate. Our team confirms which Volvo Penta variant the engine represents and verifies the Sea Water Pump 21212799 3812519 matches the specific serial range. Stock availability and dispatch timing are confirmed in the same response, along with freight options suited to the operational urgency.
Q: Is this pump in stock and when can it ship? A: The Sea Water Pump 21212799 3812519 is held in Guangzhou warehouse inventory for immediate dispatch. Orders confirmed before the daily cutoff ship same day via the buyer's chosen freight method. Stock status is verified in real time when the inquiry arrives, ensuring the quoted availability reflects the actual shelf position rather than a catalog listing.
Q: What is the minimum order quantity? A: One piece. A single vessel needing one pump receives the same service priority as a fleet restocking multiple units. There is no minimum threshold blocking an emergency repair or forcing a workshop to buy inventory they will not use. This MOQ policy applies across the marine cooling product range.
Q: How fast can it arrive at my port or yard? A: Transit depends on destination and chosen method. Express courier delivers within days to major ports; air freight suits international shipments where next-day is unnecessary but next-week is too slow. Arrival timing is quoted at order placement based on current carrier schedules, not estimated from generic tables.
Q: My nameplate is worn — how do I confirm the right part? A: Send a photograph of the existing pump, the engine block casting numbers, or any readable plate fragments. The technical team cross-references the Volvo Penta engine serial range against the fitment list covering 4.3L, 5.0L, and 5.7L variants. Confirmation arrives within hours, preventing the wrong unit from shipping.
Q: What happens if the part arrives and doesn't fit? A: Compatibility is verified before dispatch using the engine model and serial information provided. In the rare event of a fitment issue, the warranty covers manufacturing defects and the support team addresses the discrepancy immediately. This verification-first approach minimizes the occurrence of arrival-side surprises.
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