Engine Parts

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Related Products

Sierra® Thunderbolt HEI Tune - up Kit for V8 Mercruiser® Engines

Item # WX2-165584

Compare at $41.88 Non-Member $34.99 Buyer's Club $31.49

You Save $10.39 (25%)

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Sierra® Thunderbolt HEI Tune - up Kit for V8 Mercruiser® Engines.

Get your boat in ship-shape with top-notch replacement parts for bottom dollar! Connections corrode over time, leading to poor performance.

A simple Tune-up Kit like this can make a BIG improvement in how your boat feels on the water.

For engines:
  • Mercruiser® 198HP, 898, and 5.0L GM 1983-1984
  • Mercruiser 200HP and 5.0L 1985-1995
  • Mercruiser 228HP, 230HP, 5.0L / LX / MIE 1981-2001
  • Mercruiser 5.0L EFI Gen. II 1999-up
  • Mercruiser 260HP, 350HP Mag, 5.7L MCM and MIE / LX 1982-2001
  • Mercruiser 5.7L EFI
  • Mercruiser 5.7L Ski, 350HP Mag Ski 1998-2001
  • Mercruiser 350HP Mag Horizon MIE 1999-2001
  • Mercruiser MX 6.2L MPI 2000-2001
  • Mercruiser 454HP Mag 1985-1997
  • Mercruiser 502HP Mag 1990-1993.
Kit includes:
  • Rotor - replaces O.E.M. part # 13524A5
  • Distributor cap - replaces O.E.M. part #16457A4.


...More Details

Sierra® Thermostat Kit for Mercruiser® Ford® V8 225, 233, and 255 HP Engines, 1973 - 1977

Item # WX2-167156

Non-Member $20.99 Buyer's Club $18.89

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Sierra® Thermostat Kit for Mercruiser® Ford® V8 225, 233, and 255 HP Engines, 1973 - 1977.

Proper thermostat operation is key in getting peak engine performance and maximum fuel efficiency!

This marine-grade Kit will withstand the rigors of "ugly" brackish and saltwater. Sierra® Thermostat Kit (part no. 18-3651) replaces your original thermostat (O.E.M. 807252Q3).

Kit contains:
  • Thermostat (part no. 18-3551)- replaces O.E.M. part no. 59137
  • Thermostat Cover Gasket (part no. 18-2554)- replaces O.E.M. part no. 27-90556
  • Thermostat Cover Gasket (part no. 18-2553)-replaces O.E.M. part no. 27-47510
  • Thermostat Cover Gasket (part no. 18-2834)- replaces O.E.M. part no. 27-60208
  • Thermostat Cover Gasket (part no. 18-2844)-replaces O.E.M. part no. 27-48818-1.

Order up top-quality replacement parts for bottom dollar ONLINE today!

V8 225, 233, and 255 HP Engines, 1973-1977

...More Details

Sierra® Thermostat Kit for Mercruiser® 230, 250, and 260 HP Engines, 1977 - 1987

Item # WX2-167149

Non-Member $21.99 Buyer's Club $19.79

Add to Wishlist

Sierra® Thermostat Kit for Mercruiser® 230, 250, and 260 HP Engines, 1977 - 1987.

Proper thermostat operation is key in getting peak performance and maximum fuel efficiency!

This marine-grade Kit will withstand the rigors of "ugly" brackish and saltwater. Thermostat Kit (part no. 18-3646) replaces O.E.M. thermostat kit no. 807252Q3.

Kit contains:
  • Thermostat (part no. 18-3551)- replaces O.E.M. part no. 59137
  • Thermostat Housing Gasket (part no. 18-2917)- replaces O.E.M. part nos. 27-53045-1, 27-33918
  • Thermostat Cover Gasket (part no. 18-2844)-replaces O.E.M. part no. 27-48818-1
  • Thermostat Cover Gasket (part no. 18-2553)- replaces O.E.M. part no. 27-47510
  • Thermostat Cover Gasket (part no. 18-2834)-replaces O.E.M. part no. 27-60208.

Order up top-quality replacement parts for bottom dollar ONLINE today!


...More Details

Sierra® Mallory® Tune - up Kit for V8 Single Point Top Terminal Engine

Item # WX2-165580

Non-Member $48.99 Buyer's Club $44.09

Add to Wishlist

Sierra® Mallory® Tune - up Kit for V8 Single Point Top Terminal Engines... for use with Crusader® and Mercruiser® engines.

Get your boat in ship-shape with top-notch replacement parts for bottom dollar! Connections corrode over time, leading to poor performance.

A simple Tune-up Kit like this can make a BIG improvement in how your boat feels on the water.

For engines:
  • Crusader® 170, 220, 225, 275, 283, 327, and 348 HP 1961-1969
  • Crusader 305, 350, and 454 HP 1983-1987
  • Mercruiser® 215 and 225 HP Ford® MCM / MIE 1970-1974
  • Mercruiser 888 and 188 HP Ford MCM 1971-1982
  • Mercruiser 5.7L Ski 1985-1995
  • Mercruiser 330 HP MCM and MCI 1977-1981.
Kit includes:
  • Contact set - replaces O.E.M. part #391-5090
  • Condenser - replaces O.E.M. part #391-5092
  • Rotor - replaces O.E.M. part # 391-7057, 291-5088.
  • Distributor cap - replaces O.E.M. part #391-5075.


...More Details

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