






500109 Water Pump Impeller for Mercruiser 47-59362T 18-3087 89740 Inboard/Outboard Marine Engine
Keep your Mercruiser marine engine running cool and reliable with this 500109 Water Pump Impeller, a premium aftermarket replacement for 47-59362T / 18-3087 / 89740.
Designed for precision fit and durability, this impeller ensures optimal water circulation for a wide range of Mercruiser models — from classic V6 and V8 inboards to high-performance SCi and EFI series.
| Parameter | Detail |
|---|---|
| Part Number | 500109 |
| Replaces | 47-59362T, 18-3087, 89740 |
| Equivalent To | Sierra 18-3087 / GLM 89740 / Mallory 9-45375 / CEF 500109 |
| Application | Water Pump Impeller for Cooling System |
| Material | Premium Neoprene Rubber |
| Condition | 100% Brand New |
| Fit Type | Direct Replacement |
| Engine Model | Description |
|---|---|
| 1075 SCi | 1075 SCi High-Performance Engine |
| 1200 SCi | 1200 SCi Racing Engine |
| 350 MAG MPI ALPHA/BRAVO (GEN+) ENGINE | 350 MAG MPI ALPHA/BRAVO GEN+ |
| 350/6.2L BLACK SCORPION SKI (GEN+) | BLACK SCORPION 350 MAG SKI GEN+ V8 (1997–2001) |
| 350/6.2L BLACK SCORPION SKI (GEN+) | BLACK SCORPION MX 6.2L SKI GEN+ V8 (2001–2002) |
| 350/6.2L MAG MPI (MIE) (GEN+) | 350 MAG MPI HORIZON MIE |
| 350/6.2L MAG MPI (MIE) (GEN+) | MX 6.2L MPI MIE |
| 357 MAG BRAVO 4V / 357 ALPHA 4V / 383 MAG BRAVO 4V | 357 Alpha 4V / 357 Mag Bravo 4V / 383 Mag Bravo 4V |
| 383 MAG 4V MIE REMAN | 383 Mag Inboard 4V |
| 4.3L ALPHA/BRAVO (262 CID - GEN +) | 4.3LH GEN+ (4 BBL) GM 262 V6 (1998) |
| 4.3L CARB ALPHA/BRAVO | 4.3L Carbureted Alpha/Bravo |
| 4.3L EFI ALPHA/BRAVO (262 CID - GEN +) | 4.3L EFI GEN+ TBI GM 262 V6 |
| 454 MAG MPI HORIZON / MIE 8.2L MPI | 454 MAG MPI Horizon (GEN VI) GM 454 V8 |
| 454 MAG MPI HORIZON / MIE 8.2L MPI | 8.2L MIE MPI (GEN VI) GM 502 V8 |
| 454 / 502 MPI MAG BRAVO (GEN VI) | 454 MAG MPI BRAVO (GEN VI) GM 454 V8 (1998) |
| 454 / 502 MPI MAG BRAVO (GEN VI) | 502 MAG MPI BRAVO (GEN VI) GM 502 V8 |
| 5.0L / 5.7L EFI ALPHA/BRAVO (GEN +) ENGINE | 5.0L EFI GM 305 V8 (1999–2001) / 5.7L EFI GM 350 V8 (1999–2001) |
| 5.0L / 5.7L STERNDRIVE | 5.7L Carb Alpha/Bravo |
| 5.0L / 5.7L ALPHA/BRAVO GEN+ | 5.0L (2 BBL) GM 305 V8 (1998–2001) / 5.7L (2 BBL) GM 350 V8 (1998–2001) |
| 5.7L CARB (MIE) (GEN +) | 5.7L Carb MIE |
| 5.7L CARB INBOARD | 5.7L Carb MIE |
| 5.7L COMPETITION SKI ENGINE (GEN +) | 5.7L Competition Ski (GEN+) GM 350 V8 (1998) |
| 5.7L INBOARD | 5.7L Carb MIE |
| 5.7L TOW SPORT | 5.7L Carb Ski |
| 500 BULLDOG | 500 Bulldog (1999–2001) |
| 500 CARB (502CID) 8.2L ENGINE (GEN +) | 500 (GEN +) GM 502 V8 (1999) |
| 500 EFI | 500 EFI Performance Engine |
| 525 EFI | 525 EFI Performance Engine |
| 540 STROKER 4V | 540 Stroker 4V |
| 565 EFI | 565 EFI Engine |
| 575 SCi | 575 SCi Engine |
| 600 SCi | 600 SCi Engine |
| 662 SCi | 662 SCi Engine |
| 662 / 700 SCi | 662 SCi / 700 SCi Engines |
| 7.4L MPI (MIE) (GEN VI-L29) | 7.4L MPI MIE (L29) GEN VI GM 454 V8 (1998–2000) |
| 7.4L MPI BRAVO L29 (GEN VI) | 7.4L Bravo (MPI) (GEN VI) GM 454 V8 (1998–2000) |
| 700 SCi | 700 SCi Engine |
| 850 SCi | 850 SCi Engine |
| 850 / 1025 / 1075 / 1200 SCi | 850 / 1025 / 1075 / 1200 SCi Series Engines |
| 900 SC | 900 SC (1997–1999) |
| 900 SC - DRY SUMP | 900 SC Dry Sump (2000) |
| MX 6.2L MPI BRAVO ENGINE | MX 6.2L MPI Bravo Engine |
| RACE 1100 QC4V | Race 1100 QC4V |
| RACE 1350 QC4V | Race 1350 QC4V |
| RACE 1650 QC4V | Race 1650 QC4V |
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