09-819B-9 Johnson Pump F8B Nitrile Impeller | Genuine OEM Marine Part

🔧 Product Description

Aftermarket F8B Nitrile Spline-Drive Impeller - Replaces SPX Johnson 09-819B-9

Large eleven-blade nitrile impeller for F8B oil and compatible fluid-transfer pumps. It is the material-matched nitrile counterpart to the 09-819B/09-1029B water-service family.

⚙️ Key Features

• Material: nitrile, oil resistant
• Outside diameter: 95.0 mm / 3.74 in
• Width: 63.0 mm / 2.48 in
• Drive: internal spline
• Blade count: 11

🚤 Compatibility

Commonly used on

• SPX Johnson F8B nitrile spline-drive pumps
• Jabsco pumps specifying 836-0003 or 17935-0003
• High-volume diesel, oil and oily-water transfer systems using this envelope

Application Details

• Pump / Service Type: High-volume diesel, lubricating oil and compatible fluid transfer
• Identification: Confirm nitrile compound, 95 × 63 mm dimensions, spline and 11 blades.
• 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

• 09-819B-9 - current verified nitrile service reference

OEM / Related Numbers

• 09-819B-9
• 09-819B / 09-1029B - water-service counterparts

Direct Same-Material / Configuration Equivalents

• Jabsco: 836-0003 / 17935-0003
• JMP: 8100-02
• Ancor: J050435
• CEF: 500205

Dimensional or Different-Material Counterparts

• Jabsco 836-0001/17935-0001, JMP 8000-01, CEF 500105 and SPX Johnson 09-819B/09-1029B - water-service versions

📦 Condition

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