Water Pump 16251-73032 & Thermostat With Gasket 15531-73014 for Kubota Engine D1005 D1105 D1305 D905 V1305 V1505
Keep your Kubota D1005, D1105, D1305, D905, V1305, or V1505 engine running...
21214599 3812693 3862482 Sea Water Pump — compatible with Volvo Penta 3.0, 4.3, 5.0, 5.7 marine engines, reinforced NBR impeller, marine-grade aluminum housing.
Dispatch timeline confirmed at quotation so your vessel gets back on water without guesswork.
In Stock Now — Guangzhou warehouse holds this sea water pump for Volvo Penta 3.0–5.7 engines with immediate dispatch on single-piece orders.
| Parameter | Value |
|---|---|
| Part Number | 21214599 3812693 3862482 |
| Cross-Reference | 21214599, 3812693, 3862482, 3857202 (reference only) |
| Machine Fitment | 3.0GSMEFS, 3.0GSPEFS, 4.3GLPEFS, 4.3GXi-A through 4.3GXi-EF, 4.3OSi-B, 4.3OSi-E, 5.0GLPEFS, 5.0GiPEFS, 5.0GXi-A through 5.0GXi-EF, 5.0OSi-A through 5.0OSi-EF, 5.7GSPEFS, 5.7GSIPEFS, 5.7GXi-A through 5.7GXi-F, 5.7Gi-A through 5.7Gi-EF, 5.7OSi-A through 5.7OSi-DF |
| Product Type | Water Pump |
| Part Name | Sea Water Pump |
| Condition | New Aftermarket |
| Impeller Material | Reinforced nitrile rubber (NBR) |
| Housing Material | Marine-grade aluminum alloy (AlSi10Mg) with anodized surface treatment |
| Shaft Seal Type | Double-lipped Viton with stainless steel springs |
| Static Pressure Rating | 3.5 bar |
| Continuous Operation Speed | 5,000 rpm |
| Dimensional Tolerance | ±0.05 mm on mounting faces and bore diameters |
| Flow Test Condition | 30 L/min @ 2.8 bar |
| Warranty | 3–12 months against manufacturing defects |
| Standards | ISO 9001, ISO 8502-3, SAE J1927 |
| MOQ | 1 piece |
| Failure Symptom | Replacement Urgency |
|---|---|
| Engine overheating at cruise or under load | Immediate — vessel cannot operate safely without raw water flow |
| Reduced water flow from exhaust tell-tale | High — impeller or seal degradation progressing toward total failure |
| Visible weeping at shaft seal | High — seal failure will flood bilge or destroy bearings within hours |
| Scored or corroded pump housing bore | Scheduled — housing wear accelerates impeller wear and reduces flow |
| Vibration or noise from pump pulley area | Moderate — bearing wear underway, replacement before catastrophic seizure |
A confirmed Sea Water Pump for Volvo Penta in stock fast shipping replacement ships the same day the order is placed.
When a charter boat sits on the lift with a cooked impeller and a scored housing, every day without a confirmed part number is a day of lost bookings. I have watched workshop managers cycle through three suppliers waiting for someone to confirm whether 21214599, 3812693, or 3862482 is the correct number for their specific engine build — and by the time an answer comes back, the weekend rush is over [NEED_CITE: marine engine cooling system failure modes and downtime costs]. The Sea Water Pump for Volvo Penta in stock fast shipping replacement eliminates that wait. You send a photo of the nameplate, we cross-check the engine serial range against the pump variant, and the unit leaves Guangzhou within one business day.
The first step is always confirmation. Whether you send a part number, an engine model like 5.7GXi-EF, or a photograph of a salt-crusted nameplate, the goal is to match the pump variant to your exact engine serial range before anything ships. A Sea Water Pump for Volvo Penta in stock fast shipping replacement only solves the problem if it is the correct variant — and across the 3.0 through 5.7 lineup, mounting face patterns and port orientations differ.
Once confirmed, the unit is pulled from Guangzhou warehouse stock, inspected for dimensional tolerance on mounting faces and bore diameters, and packed with anti-corrosion protection. You receive dispatch confirmation and a tracking number the same day.
Express courier delivers in three to five days, which covers most emergency situations where a vessel is already on the hard. Air freight takes seven to twelve days and suits workshops restocking a recurring service item. Sea freight at twenty-five to forty days is the cost-effective choice for fleet operators building a spare parts inventory ahead of the season. Each option is quoted with an estimated arrival date at the time of quotation — no guessing, no waiting for a second email [NEED_CITE: international freight transit times for marine spare parts].
The packaging is designed to survive courier handling: the original sealed box includes anti-corrosion desiccant and OEM-style labeling, so the pump arrives in the same condition it left the shelf.
The AlSi10Mg marine-grade aluminum housing with anodized surface treatment is selected for saltwater cooling circuits where thermal cycling runs between 10°C and 45°C. Anodizing creates a barrier layer that slows galvanic corrosion when the pump sits between bronze fittings and stainless steel hose clamps — a common dissimilar-metal arrangement in raw water circuits.
The double-lipped Viton shaft seal with stainless steel springs handles the abrasive silt and micro-organism load typical of harbor and estuary water. Viton maintains its lip pressure across the full operating temperature range, while the stainless springs resist the saltwater pitting that collapses standard carbon steel springs within a season.
Reinforced NBR impeller material balances flexibility for self-priming at low rpm with the stiffness needed to maintain vane geometry at the 5,000 rpm continuous operation ceiling. The 30 L/min flow rate at 2.8 bar is the verified test condition — sufficient to keep heat exchangers within safe margins on planing hull and twin-engine configurations.
When a pump arrives and the mounting bolt pattern does not match the block, the vessel stays on the lift while a return ships back and a replacement ships out. In peak season, that round-trip exchange can consume an entire week of charter revenue [NEED_CITE: marine charter operator downtime cost analysis]. Even a near-match — a pump that bolts on but has the wrong port orientation — forces hose rerouting that introduces flow restrictions and future leak points.
The consequence is not just a delayed repair. It is a cascade: the haul-out yard charges extra days on the lift, the customer cancels the booking, and the workshop absorbs the credibility hit. Confirming the correct Sea Water Pump for Volvo Penta in stock fast shipping replacement before dispatch is the single most effective way to prevent that cascade.
Own production lines and qualified sourced supply operate under one account and one warranty, so there is no finger-pointing between manufacturers when a question arises. Eight product categories under one roof mean a workshop ordering this pump can add thermostat housings, seal kits, and belt tensioners to the same consignment — the entire cooling system job ships as one parcel.
Single-piece minimum order means an emergency replacement for one downed vessel does not require padding an order to meet a bulk threshold. The Guangzhou warehouse holds common fast-failure items like this pump in stock for immediate dispatch, not on a back-order promise. Part identification works from a part number, a machine model, or a photograph of a worn nameplate — whichever is available at the moment of failure. Cross-reference verification covers superseded numbers such as 3857202, so an older catalog listing still resolves to the current production variant.
Send the engine model designation, serial number, or a clear photograph of the engine nameplate — even if the plate is faded or painted over. The technical team will confirm which pump variant matches your specific engine build and provide a dispatch timeline with the quotation. For fleet operators, include the full vessel list and engine hours so we can identify which units are approaching typical replacement intervals.
Q: Is this sea water pump in stock right now and when can it ship? A: This pump is held in Guangzhou warehouse stock for common variants across the 3.0 through 5.7 engine range. Once you confirm the correct variant for your engine serial number, the unit is picked, inspected, and dispatched within one business day. Stock status is confirmed in real time before you commit to payment.
Q: Can I order just one piece for an emergency repair? A: Yes. The minimum order quantity is one piece. There is no bulk requirement or minimum dollar threshold. A single pump for an emergency repair ships on the same terms as a larger order, with the same documentation and warranty coverage.
Q: How fast can it arrive via express or air freight? A: Express courier typically delivers within three to five days from dispatch. Air freight takes seven to twelve days depending on destination and customs clearance speed. Both options are quoted with an estimated arrival date at the time of inquiry so you can plan the repair schedule around a confirmed delivery window.
Q: My engine nameplate is worn — can you identify the right pump from a photo? A: Yes. Send a photograph of whatever identifying marks remain on the engine block, manifold, or existing pump housing. The technical team cross-references visible casting numbers, port orientation, and mounting patterns against known engine serial ranges to confirm the correct variant before anything ships.
Q: What happens if the pump arrives and does not match my engine? A: If the pump variant was confirmed by our technical team based on the information you provided and still does not fit, we arrange an exchange at our cost. The warranty covers manufacturing defects for 3–12 months, and the claims process is documented in writing before dispatch so there is no ambiguity.
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