Johnson Pump 3" Blower Flange Mounted - 12V - 54124

Johnson Pump 3" Blower Flange Mounted – 12V – 54124

The Johnson Pump 3" Flange Mounted Blower (54124) is designed to deliver reliable ventilation for engine compartments, bilges, and enclosed spaces on boats and marine vessels. Built for continuous marine use, this 12-volt inline blower efficiently removes fuel vapors, heat, and moisture, helping maintain a safer and cooler onboard environment.

Featuring a flange-mounted housing, this blower allows for secure and vibration-resistant installation in tight spaces. The 3-inch hose connections make it compatible with standard marine ducting systems, while the corrosion-resistant construction ensures long-lasting performance in harsh marine conditions. Ideal for both OEM and replacement applications, Johnson Pump blowers are trusted worldwide for dependable airflow and durability.

Perfect for gasoline-powered boats and other marine ventilation needs, the Johnson Pump 54124 blower helps meet marine safety recommendations and improves overall air circulation onboard.

Technical Specifications

General

• Model: 54124

• Type: Flange-mounted marine blower

• Voltage: 12 V DC — compatible with standard marine electrical systems. 

• Mounting: Flange mount for secure, surface installation. 

• Hose Size: 3-inch inlet/outlet — fits standard 3″ marine ducting. 

Performance

• Airflow Capacity: ~112 CFM (Cubic Feet per Minute) — effective ventilation for small to medium engine or bilge compartments. 

• Motor Design: Radial (squirrel-cage) flow — efficient airflow with quieter operation and lower vibration. 

• Idle RPM: Approx. 3,100 RPM for long service life and dependable airflow.

Electrical

• Operating Current: ~5 amps at 12 V — moderate power consumption suitable for typical marine battery systems. 

Construction

• Housing Material: Durable, glass-filled composite resin designed for marine environments. 

• Corrosion-Resistant Components: Stainless-steel hardware and shaft help resist rusting from salt spray and humidity. 

Safety & Standards

• Ignition Protected: Designed to minimize spark risks in fuel-vapor environments (important for engine compartment ventilation). 

• Certifications: Meets or exceeds marine safety standards including NMMA, ABYC, ISO 8846, CE, and USCG guidelines for ventilation. 

Testing & Warranty

• 100% Factory Tested: Each unit is tested prior to shipping for reliable performance. 

• Warranty: Varies by seller/documentation — check included paperwork for full terms. 

Ideal Applications

• Engine compartment ventilation

• Bilge and fuel vapor exhaust

• Cabin and compartment airflow

• Gasoline-powered vessels requiring blower ventilation

Specifications

• Product Type: Marine ventilation blower

• Voltage: 12V DC

• Duct Size: 3 inches

• Mounting Style: Flange mount

• Manufacturer Part Number: 54124

• Brand: Johnson Pump

Why Choose the Johnson Pump 3" Flange Mounted Blower?

The Johnson Pump 54124 Blower delivers dependable ventilation performance in a compact, easy-to-install package. Designed to improve safety and airflow in critical onboard areas, it’s a trusted solution for maintaining proper ventilation on boats of all sizes.

Installation Tip

For maximum safety in engine rooms, always mount the blower as high as possible in the compartment and ensure the intake ducting reaches down to the lowest point of the bilge where heavy fuel vapors (like gasoline) tend to settle.

Manufacturer : Johnson Pump
Manufacturer Part No : 54124