Your browser version is not officially supported, and you may experience a degraded service. Please upgrade your browser.
Please note: Our central hub is moving, which may cause some delays. Most items are dispatched from our Beccles branch and remain unaffected. You can view Beccles stock availability on each product page. For time-critical orders, or if you’re unsure of stock at Beccles, please contact us.
x

See us at Irish Skipper | Stand D12 | 21st – 22nd March 2025

Sierra 18-3087 Impeller for Mercruiser Outboard Raw Water Pumps

Part No: SM-18-3087

Sierra Marine impeller 18-3087 is suitable for Mercruiser engine water pumps. The Sierra impeller is designed to replace the following pump impellers: Mercruiser Sterndrive 47-59362, 47-593621, 47-59362A1,... Read more

Description

Sierra Marine impeller 18-3087 is suitable for Mercruiser engine water pumps. The Sierra impeller is designed to replace the following pump impellers: Mercruiser Sterndrive 47-59362, 47-593621, 47-59362A1, 47-59362T1, Mallory 9-45375, 9-45375-10 & GLM 89740.

Engine pump impeller for Mercruiser outboard engines:

- 198 MIE 2 BBL GM 305 (1977) 4-stroke 8-cyl

- 200hp 2 BBL GM (1982-1987) 4-stroke 5L 8-cyl 305 cid

- 215 4 BBL Ford 302 & 215 MIE Ford 302 (1970-1972) 4-stroke 8-cyl

- 225 4 BBL Ford 302, 225 MIE Ford 302 & 225-S 4 BBL Ford 302 (1973-1974) 4-stroke 8-cyl

- 228 4 BBL GM (1982-1987) 4-stroke 8-cyl 305 cid

- 228 4 BBL GM 305 (1977-1982) 4-stroke 8-cyl

- 228 MIE 4 BBL GM (1979-1980) 4-stroke 8-cyl 305 cid

- 228 MIE 4 BBL GM 305 (1977-1978) 4-stroke 8-cyl

- 230 4 BBL GM (1982-1987) 4-stroke 8-cyl 305 cid

- 230hp MIE 4 BBL GM (1981-1991) 4-stroke 5L 8-cyl 305 cid

- 230hp MIE 4 BBL M (1992-1992) 4-stroke 5L 8-cyl 305 cid

- 233 Ford 351 (1975-1977) 4-stroke 8-cyl

- 233 MIE Ford 351 (1975-1976) 4-stroke 8-cyl

- 255 Ford 351 & 255 MIE Ford 351 (1973-1974) 4-stroke 8-cyl

- 255 MIE GM 350 (1979-1980) 4-stroke 8-cyl

- 260 4 BBL GM (1982-1987) 4-stroke 5.7L 8-cyl 305 cid

- 260 4 BBL GM 350 (1978-1982) 4-stroke 8-cyl

- 260 GM (1982-1987) 4-stroke 5.7L 8-cyl 350 cid

- 260 MIE GM (1981-1992) 4-stroke 5.7L 8-cyl 350 cid

- 262 Mag TBI Gen+ (1996-1997) 4-stroke 6-cyl

- 280 TRS GM 350 (1975-1976) 4-stroke 8-cyl

- 300 Tempest GM (1985-1986) 4-stroke 8-cyl 350 cid

- 320 EFI GM (1988-1989) 4-stroke 8-cyl 350 cid

- 325 GM 427 (1969-1972) 4-stroke 8-cyl

- 325 MIE GM 427 (1968-1974) 4-stroke 8-cyl

- 330 GM 454 (1977-1987) 4-stroke 8-cyl 454 cid

- 330 MIE GM 454 (1977-1980) 4-stroke 8-cyl

- 340hp MIE GM (1981-1992) 4-stroke 7.4L 8-cyl 454 cid

- 350 Mag Alpha 4 BBL GM (1996-1997) 4-stroke 5.7L 8-cyl 350 cid

- 350 Mag Alpha EFI Gen+ GM (1997) 4-stroke 5.7L 8-cyl 350 cid

- 350 Mag Alpha EFI Gen+ GM 350 V-8 (1996) 4-stroke 8-cyl 350 cid

- 350 Mag Alpha GM (1987-1995) 4-stroke 8-cyl 350 cid

- 350 Mag Bravo MPI Gen+ GM (1996) 4-stroke 8-cyl 350 cid

- 350 Mag Bravo MPI Gen+ GM 350 V-8 (1997) 4-stroke 8-cyl 350 cid

- 350 Mag Bravo MPI GM (1995) 4-stroke 8-cyl 350 cid

- 350 Mag EFI Ski Gen+ GM (1996-1997) 4-stroke 8-cyl 350 cid

- 350 Mag EFI Ski TBI GM 350 V-8 (1994-1996) 4-stroke 8-cyl 350 cid

- 350 Mag MPI Alpha/Bravo 4-stroke 5L 8-cyl

- 350 Mag MPI Horizon MIE 4-stroke 8-cyl

- 350 Mag MPI MIE 4-stroke 8-cyl

- 350 Mag MPI MIE Gen+ GM 350 V-8 (1998) 4-stroke 8-cyl 350 cid

- 350 Mag MPI Ski Gen+ GM 350 V-8 (1998 onwards) 4-stroke 8-cyl 350 cid

- 350 Mag MPI Ski GM (1995-1996) 4-stroke 8-cyl 350 cid

- 350 Mag SKI GM (1991-1996) 4-stroke 8-cyl 350 cid

- 350 Mag SKI GM 350 V-8 (1997) 4-stroke 8-cyl 350 cid

- 350 MIE GM 454 (1974-1976) 4-stroke 8-cyl

- 357 Alpha 4V & 357 Mag Bravo 4V (2008-2009) 4-stroke 8-cyl

- 370 TRS GM 454 (1978-1987) 4-stroke 8-cyl 454 cid

- 383 Mag Bravo 4V (2008-2009) 4-stroke 8-cyl

- 383 Mag Inboard 4V (2011) 4-stroke 8-cyl

- 400 TRS GM 454 (1980-1986) 4-stroke 8-cyl

- 420 GM (1987-1989) 4-stroke 7.4L 8-cyl 454 cid

- 425 Gen V GM 454 (1992-1993) 4-stroke 8-cyl

- 425 GM (1990-1992) 4-stroke 8-cyl 454 cid

- 4.3L Carb Alpha/Bravo 4-stroke 6-cyl

- 4.3L EFI Gen+ TBI GM 4-stroke 6-cyl 262 cid

- 4.3L Gen+ 2 BBL GM 4-stroke 6-cyl 262 cid

- 4.3L Gen II 2 BBL GM (1996) 4-stroke 6-cyl 262 cid

- 4.3LH Gen+ 4 BBL GM 4-stroke 6-cyl 262 cid

- 4.3LX Gen+ 2 BBL GM & 4.3LXH Gen+ 4 BBL GM (1996-1997) 4-stroke 6-cyl 262 cid

- 4.3LX Gen II 4 BBL GM (1996) 4-stroke 6-cyl 262 cid

- 440 TRS GM 454 (1983-1986) 4-stroke 8-cyl

- 450 Gen V GM 454 (1995-1996) 4-stroke 8-cyl

- 454 EFI Gen V GM (1994-1996) 4-stroke 8-cyl 454 cid

- 454 EFI Ski Gen V GM (1995) 4-stroke 8-cyl 454 cid

- 454 Mag Bravo Gen V GM (1992-1997) 4-stroke 7.4L 8-cyl 454 cid

- 454 Mag Bravo GM (1988-1992) 4-stroke 8-cyl 454 cid

- 454 Mag Bravo MPI Gen Gen VI GM (1996-1997) 4-stroke 8-cyl 454 cid

- 454 Mag MPI Bravo GEN VI GM (1998-2019) 4-stroke 8-cyl 454 cid

- 454 Mag MPI Horizon Gen VI GM 4-stroke 8.2L 8-cyl 454 cid

- 454 Mag MPI Ski Gen VI GM (1996-1997) 4-stroke 8-cyl 454 cid

- 460 TRS GM (1983-1986) 4-stroke 8-cyl 482 cid

- 465 Gen V GM (1992-1994) 4-stroke 8-cyl 502 cid

- 465 GM (1990-1992) 4-stroke 8.2L 8-cyl 502 cid

- 470 2 BBL I/L4 (1980-1982) 4-stroke 4-cyl 224 cid

- 470 MIE 224 I/L4 (1980-1981) 4-stroke 4-cyl

- 500 Bulldog (1997-2019) 4-stroke 8-cyl

- 500hp Bulldog GM (1990-1996) 4-stroke 8-cyl 540 cid

- 500 EFI (1999-2004) 4-stroke 8-cyl

- 500 Gen+ GM (1999-2000) 4-stroke 8.2L 8-cyl 502 cid

- 500hp Gen V GM (1994-1996) 4-stroke 8.2L 8-cyl 502 cid

- 500 Gen VI GM (1997-1998) 4-stroke 8.2L 8-cyl 502 cid

- 502 EFI Gen V GM (1993-1995) 4-stroke 8.2L 8-cyl 502 cid

- 502 Mag Bravo Gen V GM (1992-1993) 4-stroke 8.2L 8-cyl 502 cid

- 502 Mag Bravo GM (1990-1992) 4-stroke 8.2L 8-cyl 502 cid

- 502 Mag MPI Bravo Gen VI GM (1998-2019) 4-stroke 8.2L 8-cyl 502 cid

- 502 Mag MPI Gen VI GM (1996) 4-stroke 8.2L 8-cyl 502 cid

- 5.0L 2 BBL GM (1988-1998) 4-stroke 8-cyl 305 cid

- 5.0L Carb Alpha/Bravo 4-stroke 8-cyl 305 cid

- 5.0L EFI GM (1998) 4-stroke 8-cyl 305 cid

- 5.0L MIE 4 BBL GM (1988-1992) 230hp 4-stroke 8-cyl 305 cid

- 5.0LX 4 BBL GM (1988-1995) 4-stroke 8-cyl 305 cid

- 525 EFI (2003-2009) 4-stroke 8-cyl

- 525 SC Gen V GM 454 (1992-1996) 4-stroke 8-cyl

- 525hp SC Gen VI (1996-1999) 4-stroke 8-cyl

- 525 SC GM 454 (1991-1992) 4-stroke 8-cyl 454 cid

- 540 Stroker 4V 4-stroke 8-cyl

- 575 GM (1986-1991) 4-stroke 8-cyl 540 cid

- 575hp SCI (2000-2005) 4-stroke 8-cyl

- 5.7L 2 BBL GM (1996-1998) 4-stroke 8-cyl 350 cid

- 5.7L Alpha EFI TBI GM (1995) 4-stroke 8-cyl 350 cid

- 5.7L Bravo EFI TBI GM (1995) 4-stroke 8-cyl 350 cid

- 5.7L Carb Alpha/Bravo 4-stroke 8-cyl

- 5.7L Carb MIE 4-stroke 8-cyl

- 5.7L Carb Ski 4 stroke 8-cyl

- 5.7L Competition Ski Gen+ GM (1998) 4-stroke 8-cyl 350 cid

- 5.7L Competition Ski GM (1996-1997) 4-stroke 8-cyl 350 cid

- 5.7L Competition Ski GM 350 (1987-1995) 4-stroke 8-cyl

- 5.7L EFI 2 BBL TBI GM (1996-1997) 4-stroke 8-cyl 350 cid

- 5.7L EFI Gen+ Repower Plus GM & 5.7L EFI MIE GM (1997) 4-stroke 8-cyl 350 cid

- 5.7L EFI GM (1998) 4-stroke 8-cyl 350 cid

- 5.7L GM (1988-1995) 4-stroke 8-cyl 350 cid

- 5.7L MIE GM (1988-1996) 260hp 4-stroke 8-cyl 350 cid

- 5.7L MIE GM 350 (1997) 4-stroke 8-cyl 350 cid

- 5.7L Ski GM (1985-1987) 4-stroke 8-cyl 350 cid

- 5.7LX 4 BBL GM & 5.7LX Bravo EFI Gen+ GM (1996-1997) 4-stroke 8-cyl 350 cid

- 5.7LX EFI 4 BBL TBI GM (1996-1997) 4-stroke 8-cyl 350 cid

- 600 SC Bobtail (1998-2000) 4-stroke 8-cyl

- 600 SC Gen IV & V GM (1991-1996) 4-stroke 8-cyl 502 cid

- 600 SCI (2006-2010) 4-stroke 8-cyl

- 662 SCI (2007-2009) 4-stroke 8-cyl

- 700 SCI (2006-2009) 4-stroke 8-cyl

- 7.4L Bravo Gen V GM (1992-1996) 4-stroke 8-cyl 454 cid

- 7.4L Bravo Gen VI GM 454 (1996-1997) 4-stroke 8-cyl 454 cid

- 7.4L Bravo GM 454 (1988-1991) 4-stroke 8-cyl 454 cid

- 7.4L Bravo MPI Gen VI GM (1998) 4-stroke 8-cyl 454 cid

- 7.4L MIE LH Gen V GM (1992-1996) 4-stroke 8-cyl 454 cid

- 7.4L MIE LH Gen VI GM, 7.4L MIE MPI LH Gen VI GM & 7.4L TBI MIE LH Gen VI GM (1996-1997) 4-stroke 8-cyl 454 cid

- 7.4L MIE MPI LH Gen V GM (1995-1996) 4-stroke 8-cyl 454 cid

- 7.4L MIE with Borgwarner (1988-1992) 4-stroke 8-cyl 454 cid

- 7.4L MIE with Borgwarner GM (1981-1987) 340hp 4-stroke 8-cyl 454 cid

- 7.4L MIE with Hurth GM (1989-1992) 4-stroke 8-cyl 454 cid

- 7.4L MPI MIE L29 Gen VI GM (1998) 4-stroke 8-cyl 454 cid

- 7.4LX Bravo MPI Gen V GM (1996) 4-stroke 8-cyl 454 cid

- 7.4LX Bravo MPI Gen VI GM 454 & 7.4LX Bravo TBI Gen VI GM 454 (1996-1997) 4-stroke 8-cyl 454 cid

- 800 SC Gen V GM (1993-1998) 4-stroke 8-cyl 572 cid

- 8.2L MIE Gen V GM (1993-1996) 4-stroke 8-cyl 502 cid

- 8.2L MIE MPI Gen VI GM 4-stroke 8-cyl 502 cid

- 8.2L MIE MPI LH Gen VI GM (1996-1997) 4-stroke 8-cyl 502 cid

- 8.2L MIE with Hurth GM (1990-1992) 4-stroke 8-cyl 502 cid

- 850 SCI (2006-2009) 4-stroke 8-cyl

- 898 2 BBL GM (1982-1987) 4-stroke 8-cylinder 305 cid

- 898 2 BBL GM 305 (1977-1982) 4-stroke 8-cyl

- 900 SC (1998-2000) 4-stroke

- 900 SC Dry Sump 2000 & 900 SC Dry Sump (2001-2004) 4-stroke 8-cyl

- 1025SCI (2009) 4-stroke 8-cyl

- 1075 SCI (2004-2009) 4-stroke 8-cyl

- 1100 QC4V (2010-2011)

- 1200 SCI (2007-2009) 4-stroke 8-cyl

- 1350 QC4V (2010)

- 1650 QC4V (2013)

- Black Scorpion 350 Mag Ski Gen+ (1996-2001) 4-stroke 8-cyl

- Black Scorpion MX Ski Gen+ (1997-1998) 4-stroke 6.2L 8-cyl

- MX 6.2L MPI Bravo 4-stroke 8-cyl

- MX 6.2L MPI MIE 4-stroke 8-cyl

- Scorpion 377 (1997-2001) 4-stroke

- Scorpion 377 Sterndrive (2000-2004) 4-stroke 8-cyl

Specifications
Width 51.05mm (2.01")
Brand Sierra
Suitable For Mercruiser
Number of Impeller Blades 8
Diameter Description OD: 65.91mm (2.6"), ID: 19.05mm (0.75")
Drive Type Description Single Flat Drive
Ask a Question
Sierra 18-3087 Impeller for Mercruiser Outboard Raw Water Pumps

£35.50

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

£35.50 Incl VAT

 10 in stock

View Trade Prices
Quantity
Check stock in store
Beccles

10 in stock

 Please check with the store before travelling to avoid disappointment

Get offers in your inbox

Sign up for the latest offers, product news, technical advice and more.

By submitting your details you consent to our Privacy Notice.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.