Fuel Pump | Volvo Penta 24333572

Volvo Penta Fuel Pump | 24333572 | OEM Replacement | Volvo Penta Marine Engines

The fuel pump on a Volvo Penta marine engine is responsible for drawing fuel from the tank and delivering it at the correct pressure and volume to the fuel injection system. When fuel pressure drops below specification — whether from pump wear, internal seal failure, or diaphragm fatigue — the engine exhibits lean running conditions, hard starting, hesitation under load, and eventually a no-start condition that won't be resolved by replacing filters or checking the tank. Volvo Penta #24333572 is the OEM replacement fuel pump for Volvo Penta marine engines, built to the exact flow rate, pressure spec, and mounting configuration of the original component. Replaces superseded Volvo Penta part numbers 21605461, 21545139, and 23306459.

Part Details:

• Part Number: 24333572
• Manufacturer: Volvo Penta
• Type: Fuel Pump — OEM Replacement
• Replaces: Volvo Penta 21605461, 21545139, 23306459
• Application: Volvo Penta marine engines — verify fitment against your engine's parts diagram or service manual before ordering
• Condition: New, Genuine OEM Volvo Penta
• Country of Origin: USA

Additional Information

Diagnosing Fuel Pump Failure on Volvo Penta Engines:

Fuel pump failure on a marine engine is often misdiagnosed because the symptoms — lean running, hesitation, hard hot-start — overlap with other fuel system problems including clogged fuel filters, dirty injectors, failing fuel pressure regulators, and air leaks in the fuel supply line. Before replacing the pump, confirm the diagnosis with a fuel pressure test at the rail:

• Low static pressure at key-on — the pump should build rail pressure within seconds of key-on before cranking; low or no pressure buildup at key-on points to the pump or its electrical circuit
• Pressure drop under load — a pump that holds static pressure but drops significantly under wide-open-throttle load is worn and cannot sustain flow demand
• Pressure drop after shutdown — a rapid pressure drop after engine shutdown (more than a few PSI per minute) indicates a failing check valve in the pump, allowing fuel to drain back to the tank
• Fuel pump noise — a whining, buzzing, or rattling fuel pump that is louder than normal is a pump under stress; replace before it fails completely rather than waiting for a no-start

Always replace the fuel filter at the same time as the fuel pump — a restricted filter is a leading cause of pump failure, and a new pump pushing through an old filter will shorten the replacement pump's service life.

Why OEM Matters on a $2,100 Fuel Pump:

At this price point, the decision between OEM and aftermarket is straightforward. Volvo Penta fuel pumps are calibrated to deliver the exact flow rate and pressure profile the engine management system expects. Aftermarket pumps in this category vary in their ability to match OEM flow specs, and a pump that delivers slightly off-spec pressure can cause fuel trim corrections, rough running, and long-term injector wear. The OEM Volvo Penta #24333572 guarantees the correct specification for your engine and carries Volvo Penta's warranty coverage.

Frequently Asked Questions

1. How do I confirm this pump fits my Volvo Penta engine?
Cross-reference part #24333572 — or the superseded numbers 21605461, 21545139, or 23306459 — against your Volvo Penta engine's parts diagram or service manual. Locate your engine's model designation and serial number on the engine ID plate and verify the part number against the Volvo Penta parts catalog for your engine family. Contact us at MacombMarineParts.com with your engine model and serial number and we'll confirm the correct pump before you order.

2. What fuel pressure should this pump produce?
Fuel pressure specification varies by engine model and fuel system configuration. Refer to your Volvo Penta engine's service manual for the correct static and running fuel pressure specifications for your application. Do not assume a pressure spec from another engine model — Volvo Penta uses different pressure specifications across its engine families.

3. Should I replace the fuel filter when I replace the pump?
Yes — always. A clogged or partially restricted fuel filter is one of the leading causes of fuel pump failure. Installing a new pump on a dirty filter puts immediate stress on the replacement and significantly shortens its service life. Replace the primary fuel filter and any inline pre-filters at the same time as the pump. It is inexpensive insurance on a $2,100 component.

4. Can I replace this pump myself or does it require a dealer?
Fuel pump replacement on a Volvo Penta marine engine is within the capability of an experienced marine technician. However, the procedure involves working with pressurized fuel lines, requiring proper fuel system depressurization before disassembly, and careful attention to fire safety in the engine compartment. If you are not experienced with marine fuel system service, we recommend having the pump replaced by a qualified Volvo Penta dealer or certified marine technician. Always consult your engine's service manual for the correct removal and installation procedure for your specific engine model.