Shurflo Pro Blaster II Ultimate Washdown Kit 4358-153-E09, 5.0 GPM 12V Deck Washdown Pump with 25 Foot Hose

The Shurflo Pro Blaster II Ultimate Washdown Kit is a complete 12V deck washdown system built for fish boxes, anchor chain cleaning, scaling, and general deck cleanup on boats operating in fresh or salt water. At the center of the kit is the Pro Blaster II Ultimate 5.0 pump, which delivers a powerful, consistent spray pattern at up to 5.0 GPM flow with a 60 PSI shut-off pressure, giving enough pressure to blast away scales, mud, and salt residue without needing a separate onboard water tank setup beyond the vessel's existing raw water source.

The pump is engineered specifically for the marine environment, with a corrosion-resistant electro-coated motor, o-ring seals, and fully sealed wire entries to keep water out of electrical connections. Internally, the co-molded diaphragm and independent chambers work with a built-in check valve to extend service life and maintain consistent output. The pump self-primes up to 6 feet and can run dry without damage, so an empty line or momentary loss of suction will not harm the motor. The sealed switch is thermally protected and ignition protected, and the unit carries CE certification.

This is a full installation-ready kit, not just a bare pump. It includes the Pro Blaster II Ultimate 5.0 pump, mounting and plumbing fittings, a spray nozzle, a raw water strainer to protect the pump from debris, and a 25 foot self-coiling hose, so everything needed to plumb a washdown station is in one box. The kit is a direct replacement for the earlier Shurflo part 4903 for owners upgrading an existing washdown system.

Specifications

• Brand: Shurflo
• Manufacturer Part Number: 4358-153-E09
• Flow Rate: 5.0 GPM
• Voltage: 12 Volts DC
• Maximum Amp Draw: 14 Amps
• Shut-Off Pressure: 60 PSI
• Dimensions: 10 inches x 5 inches x 4.75 inches
• Weight: 11.875 pounds
• Material: EPDM, Polypropylene (PP), Santoprene, Stainless Steel
• Color: Beige
• Self-Priming Height: 6 Feet
• Hose Length: 25 Feet
• Hose Diameter: 1/2 inch
• UPC: 752324012008
• Warranty: 2 Year Manufacturer Warranty
• Kit Contents: Pro Blaster II Ultimate 5.0 pump, fittings, nozzle, raw water strainer, 25 foot x 1/2 inch coiled hose

Replaces (OEM)

• 4903

Frequently Asked Questions

What is included in the Shurflo Pro Blaster II Ultimate Washdown Kit? The kit (part number 4358-153-E09) includes the Pro Blaster II Ultimate 5.0 pump, mounting fittings, a spray nozzle, a raw water strainer, and a 25 foot self-coiling hose, giving you everything needed to install a complete washdown station.

How much flow and pressure does this washdown pump produce? The Pro Blaster II Ultimate 5.0 pump delivers up to 5.0 GPM flow with a 60 PSI shut-off pressure, enough force to clear scales, mud, and salt residue from decks and anchor chains.

Is the Shurflo 4358-153-E09 pump self-priming? Yes, the pump self-primes up to 6 feet and includes dry run capability, so it will not be damaged if it runs without water.

What voltage does this washdown kit run on? This Shurflo washdown kit runs on a 12 volt DC system, drawing up to 14 amps at maximum load.

Does the Pro Blaster II Ultimate Washdown Kit work with both fresh and salt water? Yes, the pump and included fittings are built to handle fresh and salt water washdown applications on boats and docks.

What OEM part does the Shurflo 4358-153-E09 replace? This kit is a direct replacement for the earlier Shurflo part 4903, with updated construction including a co-molded diaphragm and electro-coated motor.

How long is the hose included with this kit? A 25 foot self-coiling hose with a 1/2 inch diameter is included with the Pro Blaster II Ultimate Washdown Kit.

What materials is the pump made from? The Pro Blaster II Ultimate pump uses EPDM seals, polypropylene (PP) housing components, a Santoprene diaphragm, and stainless steel hardware for corrosion resistance in marine environments.

What are the dimensions and weight of this washdown kit? The Shurflo 4358-153-E09 pump measures 10 inches by 5 inches by 4.75 inches and the complete kit weighs 11.875 pounds.

Is this pump protected against running dry or overheating? Yes, the Pro Blaster II Ultimate pump has thermal overload protection, ignition protection, and a sealed switch, and it can run dry without damage.

What is the warranty on the Shurflo Pro Blaster II Ultimate Washdown Kit? This kit is backed by a 2 year manufacturer warranty.

What boats is this washdown kit suited for? The 4358-153-E09 kit is suited for center consoles, offshore vessels, fishing boats, yachts, pontoons, and commercial marine use.