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Sierra® Delco® Tune - up Kit for In - line 6 Single Point Engines

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Non-Member $45.99 Buyer's Club $41.39

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Sierra® Delco® Tune - up Kit for In - line 6 Single Point Engines from Mercruiser®.

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® In-line 6 1964-1969.
Kit includes:
  • Contact set - replaces O.E.M. part #34235
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Sierra® Thermostat Kit for Mercruiser® 340 HP 1981 - 1987, 7.4 Bravo / 350 Mag Engines 1988 - 1995

Item # WX2-167162

Non-Member $19.99 Buyer's Club $17.99

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Sierra® Thermostat Kit for Mercruiser® 340 HP Engines 1981 - 1987, 7.4 Bravo / 350 Mag Engines 1988 - 1995.

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. 18-3668) replaces your original thermostat, o ring, and gasket.

Kit contains:
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  • Thermostat Cover Gasket (part no. 18-2552)-replaces O.E.M. part no. 27-33179-2
  • Thermostat Cover Gasket (part no. 18-2553)- replaces O.E.M. part no. 27-47510
  • Thermostat Cover Gasket (part no. 18-2554)- replaces O.E.M. part no. 27-41812
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Order up top-quality replacement parts for bottom dollar ONLINE today!

1981-1987, 7.4 Bravo / 350 Mag Engines 1988-1995

Sierra® Thermostat Kit for Mercruiser® 140 - 3.0L Engines, 1968 - 1989

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Sierra® Thermostat Kit for Mercruiser® 140 / 3.0L Engines, 1968 - 1989

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.

Sierra® Thermostat Kit (part no. 18-3650) includes thermostat and gasket to replace your original thermostat kit (O.E.M. 59078Q3).

Kit includes:
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Sierra® Thermostat Kit for Mercruiser® 4.3 - 5.7L Engines, 2002 - 2007

Item # WX2-167151

Non-Member $34.99 Buyer's Club $31.49

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Sierra® Thermostat Kit for Mercruiser® 4.3 - 5.7L Engines, 2002 - 2007.

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. Sierra® Thermostat Kit (part no. 18-3647) replaces O.E.M. thermostat kit no. 807252Q5.

Kit contains:
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  • Thermostat Cover Gasket (part no. 18-2844)- replaces O.E.M. part no. 27-48818-1
  • Thermostat Cover Gasket (part no. 18-2552)-replaces O.E.M. part no. 27-33179-2
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