PLEASE NOTE - Some products are not immediately available. If your order will be delayed, we will e-mail you or call you and let you know.
E-MAIL US HERE about availability and we will respond quickly! We ship same day if your order was placed by 1:00 PM EST during normal business hours BASED ON AVAILABILITY.
NEXT DAY SHIPPING NOTE - Please see our Shipping Policy SATURDAY OR SUNDAY DELIVERY IS NOT AN OPTION.
Barb Thermostat Housing Hose Barb Nylon Fitting 3/4 Inch NPT X 1 Inch  OEM 60-5008
49%
$4.49 $8.75
3/4" NPT X 1" Nylon Straight Fitting Straight 3/4 inch by 1 inch fitting made of nylon Used on Thermostat Housings May need to order...
Thermostat Kit Mercruiser GM 142 Degree Complete Service Kit 18-3668
25%
$34.32 $45.79
Sierra 142 Degree Thermostat KIT Original Equipment Mercury( Old Style ) Fits various Mercruiser V6, V8 small block and V8 big block raw water engines...
Gasket Set Thermostat Housing Service Kit Mercruiser GM OEM 18-1989K
15%
$16.05 $18.79
Thermostat housing service kit for late model Mercruiser engines. Includes all gaskets & thermostat sleeve Sierra thermostat service kit Includes gaskets 18-2917, 18-2844 & 18-2554 Service...
BARB THERMOSTAT HOUSING HOSE BARB BRASS STRAIGHT FITTING 1/2" INCH NPT X 1" INCH  OEM 50-512-017
9%
$17.95 $19.75
1/2" NPT X 1" BRASS Straight Fitting Straight 1/2 inch by 1 inch fitting made of brass! Used on Thermostat Housings May need to order 2 -...
Thermostat Kit Mercruiser 160 Degree EFI Complete Service Kit 18-3648
18%
$27.00 $32.99
160 Degree Thermostat Kit EFI Includes BOTH Gaskets Mercruiser raw water cooled marine engines New Style housing used with EFI engines 1994 and up EFI and...
Barb Thermostat Housing Hose Barb <b>Brass Fitting</b> 3/4 Inch NPT X 1 Inch BARR OEM 50-512-020 Barb Thermostat Housing Hose Barb <b>Brass Fitting</b> 3/4 Inch NPT X 1 Inch BARR OEM 60-5008
25%
$15.00 $19.98
3/4" NPT X 1" BRASS Straight Fitting Straight 3/4 inch by 1 inch fitting made of Brass Replacement brass straight fitting. Size is 3/4" N.P.T to...
Gasket Thermostat 4 Grounding Studs Replaces Merc. 27-530451 Sierra® 18-2917
18%
$3.50 $4.25
GASKET THERMOSTAT - SOLD EACH Thermostat Gasket Fits GM engines Has brass rivets Replaces OMC/Johnson/Evinrude 312797, 3701777 Replaces Mercury 27-530451 Replaces Marine Power 0505-027 Replaces...
BARB THERMOSTAT HOUSING HOSE BARB BRASS STRAIGHT FITTING 3/4 INCH NPT X 3/4 INCH  OEM 50-512-019
12%
$18.45 $20.98
3/4" NPT X 3/4" BRASS Straight Fitting Straight 3/4 inch by 3/4 inch fitting made of brass! Used on Thermostat Housings May need to order 2 -...
Housing Thermostat Housing Stainless Steel GM Mercruiser Complete OEM 18-1989
8%
$289.00 $313.39
Stainless thermostat housing fits various Mercruiser GM 4.3L, 5.7L, 7.4L and 8.2L marine engines Fits various Mercruiser GM 4.3L, 5.7L, 7.4L and 8.2L applications Stainless...
THERMOSTAT KIT MERCRUISER 142 DEGREE COMPLETE SERVICE KIT 18-3646
16%
$29.60 $35.09
142 Degree Thermostat KIT - Sierra 142 degree thermostat kit designed to fit many different Mercruiser raw water cooled marine engines. Kit includes 18-3551 142...
Sleeve Thermostat Sleeve Mercruiser Thermostat Housing OEM 23-806922
26%
$12.79 $17.29
Thermostat housing SLEEVE for Mercruisers This sleeve is included with the service kit; Item: 18-1989K Sleeve Replaces Mercury/Mercruiser 23-174951, 23-806922
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