Sea Water Pump 21214599 – Verified Fitment for Volvo Penta 3.0 4.3 5.0 5.7

Cross-Reference Verified — Every superseded number mapped against Volvo Penta 3.0 through 5.7 engine variants before dispatch.

Technical Specifications

Application Suitability

Why the Same Sea Water Pump Number Ships With Different Port Orientations

The part number alone does not guarantee fitment — variant suffix determines flange and port alignment.

I spent years in Shandong working through parts catalogs, and the most damaging mistake I watched happen involved a sea water pump ordered strictly by OEM reference. The number matched the book, but the Volvo Penta 3.0 and 4.3 engines used slightly different housing port orientations. The pump arrived, and it simply would not bolt on. The vessel sat idle at the dock while a replacement was sourced [NEED_CITE: marine engine coolant pump variant identification standards].

When you work with a Sea Water Pump for Volvo Penta across the 3.0 to 5.7 range, you are dealing with more than eighty listed engine variants. The same base casting may appear under several superseded references — 21214599, 3812693, 3862482, 3857202 — and copied cross-reference tables between sellers often carry forward mapping errors that only surface when the mechanic is standing in front of the engine with the box open.

Fitment Range Across Volvo Penta Generations

The compatibility list for this Sea Water Pump for Volvo Penta spans engine families from the 3.0-liter four-cylinder through the 5.7-liter V8. Each family carries variant suffixes — A through F, plus sub-designations like CF, DF, EF — that reflect production changes in mounting geometry, hose barb position, and thermostat housing interface. A pump that fits a 5.0GXi-C may not align correctly on a 5.0GXi-D even though the displacement is identical. Confirming fitment requires matching the full engine designation, not just the displacement number.

Supersession Path and Cross-Reference Verification

Volvo Penta has revised this pump assembly several times over its production history. Earlier catalogs list 3812693 and 3862482 as the primary references, while more recent documentation points to 21214599 and 3857202. These are not different pumps for different engines — they represent design revisions of the same functional assembly. However, the transition between part numbers sometimes coincided with minor housing changes, so a blind swap from an old number to a new one without physical verification can lead to misalignment [NEED_CITE: OEM part number supersession tracking in marine engines].

Housing Material and Impeller Considerations for Saltwater Service

The corrosion-resistant housing is specified for continuous exposure to raw saltwater intake, which is the defining stress factor for any sea water pump in marine duty. The impeller — supplied pre-installed in this complete assembly — must match the original blade count and diameter to maintain correct flow volume at the engine's rated RPM. A mismatched impeller reduces coolant throughput without triggering an obvious alarm until the engine begins running warm under load, at which point the damage pathway is already active.

The Hidden Cost of Shipping the Wrong Variant

When a pump arrives and does not fit, the consequences extend beyond a return shipment. The vessel remains out of service during the resolution window. For commercial operators running fishing or charter schedules, that idle time compounds into lost bookings and contractual penalties. Even when a close-but-wrong variant can be forced into position with modified hose routing, the resulting stress on the housing flange often leads to cracking within the first season. Fitment verification before dispatch eliminates both outcomes [NEED_CITE: marine vessel downtime cost factors in cooling system repairs].

Why Procurement Verification Happens Here

Our Guangzhou facility maintains cross-reference records that include superseded and alternate numbers, not just the current catalog listing. For this sea water pump, that means we trace the path from 3812693 through 3862482 to 21214599 and 3857202 before confirming any shipment. We produce selected lines in-house and source the remainder from qualified ISO-certified partners — both channels carry identical warranty terms. Buyers can request a single sample unit to physically verify port orientation, flange bolt pattern, and impeller type before committing to a volume order. Technical staff are available to review engine serial numbers and nameplate photographs when the printed part number is worn or painted over.

Documentation & Verification

• Commercial invoice listing all cross-reference numbers mapped for this shipment
• Compatibility sheet showing verified engine variant suffixes against the supplied pump
• Dimensional inspection record covering port spacing and flange bolt pattern
• Warranty terms covering manufacturing defects for 3 to 12 months
• Packing photographs documenting unit condition before crate closure
• HS code and customs classification support for marine pump imports

Fitment Check Before Installation

• Compare new pump flange bolt pattern directly against the removed unit before hose disconnection
• Verify port orientation matches original — a 90-degree rotation indicates a variant mismatch
• Check impeller blade count and rotation direction against the old pump marking
• Dry-fit the pump without sealant to confirm all mounting holes align without force
• If any dimension deviates, photograph the mismatch and contact technical support before modification

Request Fitment Confirmation Before Ordering

Provide the full engine model designation including the variant suffix, or send a photograph of the engine nameplate and the existing pump housing. If the part number on the old unit is partially legible, share what you can read — we will cross-reference it against the supersession chain and confirm which variant your specific engine requires before anything ships.

Frequently Asked Questions

Q: How do I confirm this pump fits my specific Volvo Penta engine variant? A: Share the complete engine designation from your nameplate — including the suffix such as 5.0GXi-C or 5.7OSi-DF — and we will verify it against our fitment table. If the nameplate is unreadable, a photograph of the old pump's housing and port arrangement allows us to identify the correct variant by physical features rather than printed number alone.

Q: The number on my old pump doesn't match exactly — is it superseded? A: Very likely. Volvo Penta has issued multiple revisions for this pump assembly across production years. Numbers like 3812693, 3862482, 21214599, and 3857202 all appear in different catalog editions for overlapping applications. Send us your number and engine model, and we will trace the supersession path to confirm whether the current assembly is a valid replacement for your specific unit.

Q: Why do some listings show 3812693 and others show 21214599 for the same application? A: These represent different points in the part number evolution rather than different pumps for different engines. However, minor housing geometry changes sometimes accompanied the number transition. We verify cross-references against actual fitment data rather than relying solely on catalog tables, which may carry forward outdated mappings between sellers.

Q: I only have the engine model, not the part number — can you confirm fitment? A: Yes. The engine model with its variant suffix is often sufficient to identify the correct pump. Where multiple pump variants exist within one engine family, we may ask for a photograph of the existing unit or the engine serial number to narrow it down to a single correct match before shipping.

Q: Can I order one sample to test fit before placing a larger order? A: Sample units are available with no minimum quantity requirement. Marine repair yards servicing mixed fleets frequently order one sample to physically verify port orientation, flange pattern, and impeller specification against the vessels in their care before committing to the full quantity needed across the fleet.