09-1029B Johnson Pump F8B Spline-Drive Impeller | Genuine OEM Marine Part

🔧 Product Description

Aftermarket F8B Spline-Drive Cooling-Water Impeller - Replaces SPX Johnson 09-1029B

Large neoprene spline-drive impeller for Johnson F8B high-capacity cooling pumps. It crosses to Jabsco 836/17935 and numerous Caterpillar, Cummins, Detroit Diesel, Perkins, Volvo Penta and other heavy-marine references.

⚙️ Key Features

• Material: neoprene, cooling-water service
• Outside diameter: 95.0 mm / 3.74 in
• Width: 63.0 mm / 2.48 in
• Drive: internal spline
• Blade count: commonly catalogued as 9

🚤 Compatibility

Commonly used on

• SPX Johnson F8B spline-drive pumps
• Jabsco pumps specifying 836-0001 or 17935-0001
• Heavy marine cooling pumps carrying the listed Caterpillar, Cummins, Detroit Diesel, Perkins or Volvo Penta references

Application Details

• Pump / Service Type: High-volume raw-water cooling and clean-water transfer
• Identification: Confirm 95 × 63 mm size, spline profile and required vane configuration.
• 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

• 09-1029B - current/legacy SPX Johnson F8B designation

OEM / Related Numbers

• 09-1029B
• 09-1029S
• 09-819B - alternate 11-vane Johnson version
• 09-819B-9 - nitrile version

Direct Same-Material / Configuration Equivalents

• Jabsco: 836-0001 / 17935-0001
• JMP: 8000-01 / 8000-01K
• CEF: 500105
• Ancor: J050005 / AN2038
• Sierra Marine: 18-3078
• Caterpillar: 1L4774
• Cummins: 160596, 166758, 556540, 556850, 21601R
• Detroit Diesel: 5193553
• Perkins: 0460027 / 460027
• Vetus: IMP00901
• Volvo Penta: 807904, 825942, 875660, 875736, 876602, 21430184, 21730344

Dimensional or Different-Material Counterparts

• Jabsco 836-0003 / 17935-0003, JMP 8100-02, Ancor J050435 and SPX Johnson 09-819B-9 - nitrile material counterparts with the same principal envelope

📦 Condition

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