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DIAPHRAGM KIT 15170-99E00
FOR SUZUKI ENGINES:
DF9.9 / DF15R-K3 (1996-03)
DF25 / DF30Y K6 (2000-06)
DF40 / DF50Z-K10 (1999-10)
DF60 / DF70W-K9 (1998-09)
Description
Function and Technical Context
The fuel pump diaphragm is the sealing and pumping element that allows fuel to flow from the tank to the carburetor in four-stroke outboard engines. It operates within the fuel delivery system, acting as a flexible membrane that generates the pressure pulses necessary to maintain a continuous supply of fuel to the engine. When this diaphragm hardens, cracks, or ruptures, the pump loses its priming ability, causing starting failures, engine stalling under full load, or sudden shutdowns while underway. Kit 15170-99E00 includes the replacement components necessary to restore fuel pump performance in Suzuki DF engines of the DF9 series.9, DF15, DF25, DF30, DF40, DF50, DF60, and DF70 series, as well as in compatible Johnson and Evinrude engines, and is also listed under OMC part numbers 5030699 and 5032321.
When should this part be replaced?
The most common symptoms of a deteriorated fuel pump diaphragm are difficulty starting in cold weather, intermittent idle at medium and high loads, and irregular enrichment or lean-out of the mixture due to lack of fuel pressure. It is recommended to inspect the condition of the diaphragm during every seasonal maintenance or every 200–300 hours of operation, as the rubber also ages due to exposure to the components of modern ethanol-blended fuel, even without intensive use. Replacing the diaphragm kit as a preventive measure during annual maintenance prevents breakdowns caused by fuel starvation at sea, where an engine shutdown can be particularly critical.
Compatible Johnson/Evinrude Engines
| Series | Models |
|---|---|
| BJ40 | BJ40PL4SDR, BJ40PL4SOC, BJ40PL4SRS |
| BJ50 | BJ50PL4SDR, BJ50PL4SOC, BJ50PL4SRS |
| BJ60 | BJ60PL4SDM, BJ60PL4SOA, BJ60PL4SRR, BJ60PL4STC |
| BJ70 | BJ70PL4SDM, BJ70PL4SOA, BJ70PL4SRR, BJ70PL4STC |
| E25 | E25EL4SIC 4-Stroke, Elec. Start, 20 IN. shaft 2001, E25EL4SSS 4-Stroke, Elec. Start, 20 IN. shaft 2000, E25PL4SIC 4-Stroke, Elec. Start, TNT, 15 IN. shaft 2001, E25PL4SSS 4-Stroke, Elec. Start, TNT, 15 IN. shaft 2000, E25R4SIC 4-Stroke, Rope Start, Tiller, 15 IN. shaft 2001, E25R4SSS 4-Stroke, Rope Start, Tiller, 15 IN. shaft 2000, E25RL4SIC 4-Stroke, Rope Start, Tiller, 20 IN. shaft 2001, E25RL4SSS 4-Stroke, Rope Start, Tiller, 20 IN. shaft 2000, E25TE4SIC 4-Stroke, Elec. Start, Tiller, 15 IN. shaft 2001, E25TE4SSS 4-Stroke, Elec. Start, Tiller, 15 IN. shaft 2000, E25TEL4SIC 4-Stroke, Elec. Start, Tiller, 20 IN. shaft 2001, E25TEL4SSS 4-Stroke, Elec. Start, Tiller, 20 IN. shaft 2000 |
| E30 | E30EL4SIC 4-Stroke, Elec. Start, 20 IN. shaft 2001, E30EL4SSS 4-Stroke, Elec. Start, 20 IN. shaft 2000, E30PL4SIC 4-Stroke, Elec. Start, TNT, 20 IN. shaft 2001, E30PL4SSS 4-Stroke, Elec. Start, TNT, 20 IN. shaft 2000, E30R4SIC 4-Stroke, Rope Start, Tiller, 15 IN. shaft 2001, E30R4SSS 4-Stroke, Rope Start, Tiller, 15 IN. shaft 2000, E30RL4SIC 4-Stroke, Rope Start, Tiller, 20 IN. shaft 2001, E30RL4SSS 4-Stroke, Rope Start, Tiller, 20 IN. shaft 2000, E30TE4SIC 4-Stroke, Elec. Start, Tiller, 15 IN. shaft 2001, E30TE4SSS 4-Stroke, Elec. Start, Tiller, 15 IN. shaft 2000, E30TEL4SIC 4-Stroke, Elec. Start, Tiller, 20 IN. shaft 2001, E30TEL4SSS 4-Stroke, Elec. Start, Tiller, 20 IN. shaft 2000 |
| E40 | E40PL4EES 1999, E40PL4SIR 4-Stroke, Elec Start, TNT, 20 IN. shaft 2001, E40PL4SSC 4-Stroke, Elec Start, TNT, 20 IN. shaft 2000 |
| E50 | E50PL4EES 1999, E50PL4SIR 4-Stroke, Elec Start, TNT, 20 IN. shaft 2001, E50PL4SSC 4-Stroke, Elec Start, TNT, 20 IN. shaft 2000 |
| E70 | E70 PL4SSR 4-Stroke, Elec. Start, TNT, 20 IN. shaft 2000, E70FTLECS 1998, E70PL4EEC 1999, E70PL4SIA 4-Stroke, Elec. Start, TNT, Blue, 20 IN. shaft 2001 |
| J10 | J10EL4SRC, J10R4SNF 4-Stroke, Tiller, Rope, Carburetor, White, 15" Shaft 2002, J10R4SR (R and F), J10R4STC, J10RBL4STS, J10REL4STS, J10RL4SNF 4-Stroke, Tiller, Rope, Carburetor, White, 20" Shaft 2002, J10RL4SR (R and F), J10RL4STC, J10TBL4SR (M and F), J10TBL4STC, J10TE4SNF 4-Stroke, Tiller electric, Carburetor, White, 15 in., 2002, J10TE4SR (R and F), J10TE4STC, J10TEL4SNF 4-Stroke, Tiller electric, Carburetor, White, 20 in., 2002, J10TEL4SR (R and F), J10TEL4STC |
| J15 | J15R4SNF 4-Stroke, Tiller, Rope, Carburetor, White, 15" Shaft 2002, J15R4SR (R and F), J15R4STC, J15RL4SNF 4-Stroke, Tiller, Rope, Carburetor, White, 20" Shaft 2002, J15RL4SR (R and F), J15RL4STC, J15TE4SNF 4-Stroke, Tiller electric, Carburetor, White, 15 in., 2002, J15TE4SR (R and F), J15TE4STC, J15TEL4SNF 4-Stroke, Tiller electric, Carburetor, White, 20 in., 2002, J15TEL4SR (R and F), J15TEL4STC |
| J25 | J25PL4SOC, J25PL4SRS, J25TEL4SRS, J25TEL4SOC |
| J30 | J30PL4SDR, J30PL4SOC, J30PL4SRS, J30TEL4SRS, J30PL4SUA, J30TEL4SDR, J30TEL4SOC, J30TEL4SUA |
| J40 | J40PL4SDE, J40PL4SNF 4-Stroke, Remote, White, 20 in. shaft, Power Trim&Tilt 2002, J40PL4SOB, J40PL4SRM, J40PL4STC |
| J50 | J50PL4SDE, J50PL4SNF 4-Stroke, Remote, White, 20 in. shaft, Power Trim&Tilt 2002, J50PL4SOB, J50PL4SRM, J50PL4STC |
| J60 | J60PL4SDM, J60PL4SNF 4-Stroke, Elec. Start, TNT, 20 IN. shaft 2002, J60PL4SOA, J60PL4SRR, J60PL4STC |
| J70 | J70FLTLECS 1998, J70PL4SDM, J70PL4SNF 4-Stroke, Elec. Start, TNT, 20 IN. shaft 2002, J70PL4SOA, J70PL4SRR, J70PL4STC |
Equivalent Manufacturer Part Numbers
| Manufacturer/Brand | Reference/Part Number |
|---|---|
| OMC | 5030699, 5032321 |
| Suzuki | 15170-93E00, 15170-99E00, 15170-99E0V, 15170-99E1V, 15170-99E1V-000 |
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