09-824P-9 Johnson Pump F4B-19 Nitrile Impeller | Genuine OEM Marine Part

🔧 Product Description

Aftermarket F4B-19 Nitrile Single-Flat Impeller - Replaces SPX Johnson 09-824P-9

Six-blade nitrile impeller for Johnson F4B-19 electric transfer pumps and related F4 pump bodies. It is widely cross-referenced to Jabsco, Ancor, CEF, JMP and several aftermarket service kits.

⚙️ Key Features

• Material: nitrile, oil resistant
• Outside diameter: 50.8 mm / 2.00 in
• Width: 22.0 mm / 0.87 in
• Hub bore: 8.0 mm single flat
• Blade count: 6

🚤 Compatibility

Commonly used on

• SPX Johnson F4B-19 pumps
• SPX Johnson 10-24689-series and 10-24727-series transfer pumps
• Jabsco pumps specifying 6303-0003
• Compatible Milwaukee M18 transfer-pump applications using the 50.8 × 22 × 8 mm single-flat impeller

Application Details

• Pump / Service Type: Diesel, oil, oily water and compatible transfer duty
• Identification: Confirm nitrile material, 50.8 × 22 mm size and 8 mm single-flat drive.
• Always compare the removed impeller or pump against the listed dimensions, drive style, material and housing depth before installation.

🔌 Function

The flexible vanes form expanding chambers on the inlet side and contracting chambers on the discharge side. This produces self-priming suction and moves cooling water or other compatible fluids through the pump.

⚠️ Common Signs of Failure

• Reduced flow or inability to prime
• Engine overheating or weak cooling-water discharge
• Pulsing flow, cavitation or unusual pump noise
• Vanes are cracked, hardened, flattened or missing
• Hub has slipped, corroded or loosened from the rubber body
• Impeller has been damaged by dry running, debris or incompatible fluid

🔄 Supersession & Cross Reference

OEM / Manufacturer Number Progression

• 09-824P-9 - current verified nitrile service reference

OEM / Related Numbers

• 09-824P-9
• 09-824P-2 - polyurethane ballast version
• 09-824P-1 - MC97 water-service version

Direct Same-Material / Configuration Equivalents

• Jabsco: 6303-0003 / 6303-0003-P
• JMP: 7053-02
• CEF: 500210; market catalogues also list 500238 / 500138
• Ancor: J050011 / 2080 / 2080-GIR
• HJumbo: HJB-H-157
• Milwaukee: 49-16-2771 / 49-16-2771-S - dimensional transfer-pump application
• TMC: TMC-06211

Dimensional or Different-Material Counterparts

• Jabsco 6303-0001 and 7273-0001 - neoprene water-service counterparts
• Jabsco 6303-007-P and SPX Johnson 09-824P-2 - polyurethane ballast counterparts

📦 Condition

• Brand-new aftermarket replacement impeller
• New and unused
• Supplied in suitable manufacturer or equivalent protective packaging