Description
SIERRA Thermostat Kit for Mercruiser / 18-3668
- PRODUCT CODE: S18-3668
- This thermostat kit is interchangeable with/replaces:
- GLM / 13390
- MALLORY / 9-43150
- MERCRUISER / 807252Q4, 807252T4
- CONTAINS
PRODUCT PART NUMBER DESCRIPTION OE# S18-2552 Thermostat Cover Gasket 27-33179-2 S18-2553 Thermostat Cover Gasket 27-47510 S18-2554 Thermostat Cover Gasket 27-41812 S18-3551 Thermostat 59137 S18-7173 O-Ring 25-30224 S18-2917 Thermostat Housing Gasket 27-53045-1, 27-33918 - This thermostat kit is applicable with the ff. engine models:
ENGINE/MODEL CID/#CYL YEAR RANGE BEGINNING SERIAL NO. ENDING SERIAL NO. 175/4.3L, 4.3 LX (262 CID) Design III — B527955 UP 175/4.3L, 4.3 LX (262 CID) Aluminum Exhaust Manifold — B527955 UP 185 (229 CID) — — 6330183 6919655 185 (229 CID) — — A331455 B527954 185 (4bbl) 229-V-6 1983-1984 6330183 6919655 175 262/V-6 1987 B527955 B773242 185 (2bbl) 262/V-6 1985-1986 A331455 B527954 205 262/V-6 1985-1986 A331455 B527954 205 262/V-6 1987 B527955 B775129 205/4.3L, 4.3 LX (262 CID) Aluminum Exhaust Manifold — B527955 D714369 4.3L 262/V-6 1988-1993 B773243 F000877 4.3L 262/V-6 1987-1993 B773243 F000877 4.3LX 262/V-6 1988-1993 B775130 F001219 4.3LX 262/V-6 1993-1995 F001220 F601126 200 305/V-8 1985-1987 6899058 B774444 200 GM — — 6218462 B525981 200/5.0L GM Design III — B525982 UP 228 305/V-8 1982-1984 6218462 6899268 230 305/V-8 1985-1987 6899269 B773739 230 MIE 305/V-8 1981-1987 5907058 B788151 230 GM — — 6218462 B525981 230 GM IB Cast Iron Exhaust Manifold — 5907058 B522505 230/5.0L GM IB Design III, Cast Iron Exhaust Manifold — B522506 B525981 230/5.0L-LX GM Design III — B525982 F600999 230/5.0L-LX GM Aluminum Exhaust Manifold — B525982 UP 5.0L 305/V-8 1988-1995 B774445 F600999 5.0L MIE 305/V-8 1988 B788152 C396832 5.0L LX 305/V-8 1988-1995 B773740 F600999 898 305/V-8 1983-1984 6218462 6899057 225 (GM) — — 2278647 2399197 260 350/V-8 1982-1987 6218462 B773304 260 MIE 350/V-8 1981-1987 5907058 B788151 260 GM — — 6218462 B525981 260 GM IB Cast Iron Exhaust Manifold — 5907058 B522505 260/5.7L GM IB Design III, Cast Iron Exhaust Manifold — B522506 B525981 260 MIE — — 5907058 0B522505 260/5.7L GM Design III — B525982 F600999 260/5.7L GM Aluminum Exhaust Manifold — B525982 F600999 300 350/V-8 1985-1986 6668677 B430367 325 GM — — 2278747 2313964 330 GM W/BW Cast Iron Exhaust Manifold — 6083145 UP 350 MAG ALPHA 350/V-8 1987-1995 B525982 F600999 350 MAG ALPHA 350/V-8 1986-1995 A635178 B525981 350 MAG ALPHA 350/V-8 1987-1995 B525982 F600999 350 MAG SKI 350/V-8 1991-1996 D505450 K040399 5.7L 350/V-8 1988-1995 B773305 F600999 5.7L MIE 350/V-8 1988-1995 B788152 F600999 5.7L MIE 350/V-8 1988-1995 B788152 F622099 5.7L SKI 350/V-8 1985-1995 A338553 F775199 5.7L SKI 350/V-8 1987-1995 B514627 F775199 330 (WITH B/W) 454/V-8 1982-1987 6083145 B816540 340 MIE 454/V-8 1981-1987 5889914 B788365 350 GM (MAGNUM) — — A635178 B525981 350 GM (MAGNUM) — — B525982 UP 370 454/V-8 1985-1987 6721528 B714586 370 TRS GM — — 6721528 UP 454 MAG ALPHA 454/V-8 1986-1988 A631894 B785148 454 MAG ALPHA 454/V-8 1988-1992 B721206 D805068 454 MAG ALPHA 454/V-8 1992-1994 D805069 F304999 7.4L BRAVO 454/V-8 1988-1991 B771113 D603117 7.4L BRAVO 454/V-8 1992-1994 D603118 F351999 7.4L BRAVO 454/V-8 1988-1992 B788366 D715493 7.4L BRAVO 454/V-8 1989-1994 C391564 D715493 7.4L BRAVO 454/V-8 1989-1994 D715494 F349999 460 482/V-8 1983-1986 D715494 Additional information Additional information
Condition New
Brand Sierra
Shipping Price does not include shipping. Product will be shipped via Toll / Australia Post / Courier. Product can also be collected.
Shipping & DeliveryPrices do not include shipping.
Shipping quotes can be obtained by adding products to the cart and inputting your postcode.
$11.60 Brisbane Express - Postcodes 4000-4209, 4270-4299, 4500-4549, 9000-9725 up to 20kg
Boat Hut uses Toll Ipec Priority Service, Australia Post Express Post and Courier's Please. Boat Hut uses Australia Post or DHL International Service for New Zealand deliveries.
Free Local Pickup – by prior arrangement. We don’t always have all the products at our Acacia Ridge premises, but they may be at our warehouse. Warehouse collections can be arranged by prior arrangement - please contact us to discuss.
Order Tracking provided on all orders.
All orders will be processed within 2 business days - except backordered items. If we are unable to meet this timeframe we will contact you to provide details and options. If we are unable to ship your order within 3 business days we will offer you a refund in full or the option to wait for the goods to come into stock.
We are happy to ship to any country - and will provide a quote upon request. All overseas orders must be paid for via Paypal before your order is shipped.
Above pricing refers to regular size items that will fit in courier satchels - oversized items will require a freight quote.
Boat Hut reserves the right to refuse to fulfil an order that has the incorrect postage / freight collected at the time of sale. We will work with you to rectify the matter, if we are unable to come to a resolution then we will provide a refund in full.
18-3668
Stock Availability
**We accept advanced orders on backordered items.**
**For stock confirmation and other inquiries, kindly reach us through phone at 1300-773332 (1300 SPEEDBOAT) or 07-3039-3100 or Text Us in the bottom right of the screen and we will be in contact with you.**
**ABOUT BOAT HUT**
Boat Hut has approximately 100,000 product lines coming from a number of warehouses across Australia. All products of Boat Hut are genuine and comes with manufacturer’s warranties.
Not all of these products are available for a walk-in purchase at Acacia Ridge - most times you will need to make arrangments in advance.
Please feel free to contact us to confirm our stock at Acacia Ridge or in our warehouses.
We try our best to keep the website up to date with current stock holdings.
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SIERRA Thermostat Kit for Mercruiser / 18-3668
Original price was: $119.90.$84.90Current price is: $84.90. inc GSTIn stock
- This thermostat kit is applicable with the ff. engine models:

