5 Best Belt Driven Fuel Pump for Different Needs

If you rely on a belt driven fuel pump to keep your engine running smoothly, you know how crucial the right choice can be. Whether you’re maintaining a boat, a tractor, or an industrial pump, the wrong part can lead to downtime and costly repairs.

This guide reviews five distinct belt driven fuel pumps, from marine combo units to heavy-duty transfer pumps. We’ll break down each product’s features, best use case, and trade-offs so you can pick the perfect match for your application without guesswork.

RPS Raw Sea Water Pump – Marine Combo Unit

The RPS Raw Sea Water Pump is a complete solution for MerCruiser Bravo drives with big-block engines. It combines a raw water pump with a fuel pump mount, saving you the hassle of sourcing separate components. The unit comes with an impeller and v-belt pulley already installed, so you can bolt it on and get back on the water quickly. It replaces part number 46-807151A8 and includes a new fuel pump and gasket.

This pump is built for durability in marine environments, though it’s specifically designed for 454 and 502 cubic inch engines. The integrated design simplifies installation, but you’ll want to verify your engine’s rotation direction before ordering. If you need a direct replacement for a Bravo 3 or similar stern drive, this RPS unit is a practical, all-in-one choice.

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• Raw/sea water pump with fuel pump mount
• comes complete with impeller and v-belt pulley installed.
• Replaces part number 46-807151A8
• Includes new fuel pump and gasket
• Does not come with oil

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Ace Belt Driven Centrifugal Pump – Industrial Workhorse

The Ace Belt Driven Centrifugal Pump from Farmer Bob’s Parts is a USA-made unit built for heavy-duty fluid transfer. It features a 1.5-inch suction and 1.25-inch discharge, making it suitable for irrigation, dewatering, or chemical handling. The stainless steel shaft and wear ring resist corrosion, while the chemical-resistant Valox housing and Viton carbon/ceramic seal ensure long service life in demanding conditions.

This pump rotates clockwise when viewed from the shaft end, so you’ll need to match your power source accordingly. The cast iron construction adds weight but provides rugged durability. It’s not a fuel pump per se, but it’s an excellent choice for transferring water or other non-flammable liquids in agricultural or industrial settings. If you need a reliable centrifugal pump driven by a belt, this Ace model delivers.

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• Clockwise Rotation when facing shaft end. Stainless Steel Shaft and Wear Ring. Chemical resistant Valox. Standard Viton Carbon/Ceramic seal. MAG-D models equipped with heavy 12V clutch. X3 model has 3-1/2" (8.89 cm) spacing on mounting base; all other models have 5-1/4" (13.34 cm). Port sizes: Inlet 1-1/2" NPT, Outlet 1-1/4" NPT. Max Pressure: 120 PSI Max Flow: 80 GPM Weight: 20 lbs
• Belt Driven Centrifugal Pump
• FMC Series
• Cast Iron
• Green
• 014-FMCCW150, FMC CW 150,FMCCW150

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FASWORX Water/Fuel Pump Assembly – Ready-to-Install Kit

The FASWORX Water/Fuel Pump Assembly is a comprehensive kit for MerCruiser Bravo 454 and 502 engines. It includes the water pump assembly, one quart of oil, a V-belt, and a fuel pump gasket, so you have everything needed for a complete installation. The impeller comes pre-lubricated and the v-belt pulley is already installed, reducing prep time significantly.

This kit replaces part number 46-807151A8 and is designed to be ready to install right out of the box. The inclusion of oil and belt is a thoughtful touch, saving you extra trips to the store. However, it’s specifically for MerCruiser Bravo models from the 1990s, so compatibility is limited. If you own a compatible boat, this FASWORX kit simplifies the replacement process considerably.

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• Water pump assembly with 1-quart of oil, V-belt, fuel pump gasket
• Impeller is installed with lube and v-belt pulley installed.
• Replaces part number 46-807151A8
• Ready to install
• Fits Mercruiser 454 and 502 engine from 1992 – 1999 with the mount for the fuel pump

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Bskoveval VOE21021484 Fuel Pump – Heavy Equipment Transfer

The Bskoveval VOE21021484 Fuel Pump is a belt driven fuel transfer pump designed for Volvo construction and industrial equipment. It’s compatible with models like the L50D, A25B, A40G, and many others, making it a versatile replacement part. The pump features a single groove pulley, side fuel ports with red protective caps, and a 4-hole flange mount for secure installation.

This pump uses a built-in gear pump core to move diesel from the tank through the fuel filter to the injection pump. It replaces multiple part numbers including 04296790 and 20865735. While it’s built for Volvo equipment, you should verify your specific model’s fitment before purchase. If you need a reliable fuel transfer pump for heavy machinery, this Bskoveval unit is a solid choice.

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• Fitment Reference: Replacement for VOE21021484 04296790 20865735 and 20980697 fuel pump fuel transfer pump
• Compatible Models: Compatible with V-OLVO L50D L50 DD14S PT220 DD25B SD190DX A25B A25F A40G and DU118
• Fuel Supply Function: Belt driven fuel pump helps move diesel flow through the fuel filter to the injection pump
• Install Details: Single groove pulley side fuel ports red protective caps 4 hole flange mount and built in gear pump core
• Build Details: Cast iron housing carbon steel pulley alloy steel internal gears fluororubber seal and 1 fuel pump included

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FGNTWP Water & Fuel Pump Pulley – MerCruiser 1992-1999

The FGNTWP Belt Driven Water & Fuel Pump Pulley is a replacement part for MerCruiser Bravo 454 7.4L and 502 8.2L engines from 1992 to 1999. It replaces part numbers 46-807151A8, 861677T, and 818383T, making it a direct fit for many popular stern drive setups. This is a pulley assembly, not a complete pump, so it’s ideal if you already have the pump housing and just need the rotating components.

This part is designed for the specific engine years listed, so double-check your engine’s serial number before ordering. The construction appears robust for marine use, though detailed materials are not specified. If you’re rebuilding your existing pump or replacing a worn pulley, this FGNTWP unit offers an affordable, targeted solution for your MerCruiser.

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• Part Number:46-807151A8, 46807151A8, 861677T, 818383T
• Application:for MerCruiser Bravo 454 7.4L 502 8.2L 1992-1999

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Buyer’s Guide: What to Consider

Choosing the right belt driven fuel pump depends on your specific engine and application. Keep these key factors in mind to ensure a proper fit and reliable performance.

• Engine Compatibility: Ensure the pump matches your engine's make, model, and year. Marine pumps often fit specific MerCruiser or Volvo engines.
• Pump Type and Function: Decide if you need a combined water/fuel pump, a centrifugal pump, or a dedicated fuel transfer pump for your application.
• Included Components: Some kits include belts, gaskets, or oil. Others are bare pumps. Consider what you need to complete the installation.
• Rotation Direction: Check whether the pump requires clockwise or counterclockwise rotation when viewed from the shaft end to match your drive system.
• Build Materials: Stainless steel shafts and chemical-resistant seals improve longevity in harsh environments like saltwater or industrial settings.

Conclusion

Selecting the best belt driven fuel pump comes down to matching the pump to your engine and intended use. For MerCruiser boat owners, the RPS and FASWORX kits offer complete solutions, while the Ace centrifugal pump handles industrial water transfer. The Bskoveval pump is ideal for Volvo heavy equipment, and the FGNTWP pulley works for targeted repairs.

Take time to verify compatibility, rotation direction, and included parts before purchasing. With the right pump, you’ll keep your equipment running reliably for years to come.