Mercruiser thermostat housings
Fits many 4.3L, 5.0L, 5.7L, 454s and 502s
See application charts to the left for
your engine. Replaces 16413A3 and A9
for Stainless Steel use the one below
Replacment mercruiser thermostat housings. Boat Thermostat
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systems,marine thermostat housings. We sell replacement t-stats
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On this page you will find some of these replacement mercruiser
thermostat housings. Housings for mercruiser.
Boat Store Online.com
Email us
888-426-2841
Click on images
Mercruiser thermostat housing
Fits many 4.3L, 5.0L, 5.7L
See application charts to the left for
your engine. Replaces 1643A3, 1643A9,
87290A23
Specify 350 or 454 at check out add $20 for 454
Stainless steel REPLACEMENT FOR ABOVE
Fits many 4.3L, 5.0L, 5.7L, 454s and 502s
See application charts to the left for your
engine. Replaces Merc:# 87290A4, 861006A1
Mercruiser thermostat housing
Replaces: Merc # 90736A18
370,425, 454MAG and 465
See application charts to the left for your
engine.    
Mercruiser thermostat housing cover
Replaces: Merc # 47441A1
225,260,228,898,898r,198,185r,228r ,2gr
Mercruiser thermostat housing
Replaces: Merc # 78984A01, 861493A3
250,255gm,280trs early gm V8 and more
Mercruiser thermostat housing
Replaces Merc: #8602564A
See application charts to the left for
your engine.
Mercruiser thermostat housings
Replaces Merc: #861188A1
Closed cooling
MCM/MIE 4.3L - 8.2L
Part# (18-3531)
Mercruiser thermostat housing
Replaces Merc: #MC-29-47587 lower
3.0L / 181cid         MC-29-60372 upper
120,140 engines (18-1910)
Mercruiser thermostat housings
Replaces Merc: #55131A5
Merc 4.3L-8.2L
Part #(18-3532)
$52.63
upper and lower
$134.19
$199.72
$198.69
$138.99
$29.00
$138.96
$184.06
Housing only    
  
$129.92
Thermostat Housings & thermostats
See application charts to the left for your engine.
Mercruiser thermostat housings
Click on images
Complete kit
$220.99
Mercruiser thermostat kit 142*
For use on early Mercruiser
Inboard/Outboard cooling systems
$14.99
Mercruiser thermostat housings
For use on Mercruiser 160*
Inboard/Outboard cooling systems
$14.99
$14.99
Mercruiser thermostat kit 142*
For use on early Mercruiser
Inboard/Outboard cooling systems
Mercruiser thermostat kit 142*
For use on early Mercruiser
Inboard/Outboard cooling systems
Replaces M/C # 807252Q3
Mercruiser Thermostat Kit includes Thermostat OE
#59137 and assorted Thermostat Cover Gaskets
$14.99
Mercruiser thermostat housing
Replaces the 16413A9, 90736A24 & A7
454 and 502 housing
$220.99