09-820B Johnson Pump F95B Nitrile Impeller | Genuine OEM Marine Part

🔧 Product Description

Aftermarket F95B Long Spline-Drive Neoprene Impeller - Replaces SPX Johnson 09-820B

Extra-long twelve-blade cooling-water impeller for Johnson F95B pumps. Despite some reseller titles calling it nitrile, SPX identifies the standard 09-820B material as neoprene/natural rubber for cooling-water duty.

⚙️ Key Features

• Material: neoprene/natural rubber, not nitrile
• Outside diameter: 95.0 mm / 3.74 in
• Width: 130.0 mm / 5.12 in
• Hub bore: approximately 25 mm
• Drive: internal spline
• Blade count: 12

🚤 Compatibility

Commonly used on

• SPX Johnson F95B long-body spline-drive pumps
• JMP pumps and service applications specifying 9136-01/9136K

Application Details

• Pump / Service Type: Very-high-capacity raw-water cooling and clean-water transfer
• Identification: Confirm the full 130 mm width; shorter 63 mm and 88.5 mm impellers are not substitutes.
• 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

• 09-820B - current/legacy SPX Johnson F95B reference

OEM / Related Numbers

• 09-820B

Direct Same-Material / Configuration Equivalents

• JMP: 9136-01 / 9136K
• CEF: 500186
• Dayco: DRIM025
• HJumbo: HJB-K-197

Dimensional or Different-Material Counterparts

• No official SPX-listed Jabsco equivalent
• Do not substitute the shorter 09-802B/09-814B F9B impellers despite the same 95 mm outside diameter

📦 Condition

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