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Sierra Marine Parts Catalog: Mercruiser

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THERMOSTAT APPLICATION (Cont.)
Engine / Model
CID / # CYL
Year
Beginning
Ending
Housing
Thermostat
Thermostat &
Thermostat
Gaskets
Gaskets
Gaskets
Range
Serial #
Serial #
Cover
Gasket Kit
Required
Required - Design II
Required - Design III
170
224/L4
1985-1986
6916779
B434940
18-3667
18-3667
18-3555
18-2555
175/4.3L, 4.3LX (262 CID)
B527955
Up
--
18-3668
18-3551
18-2553
18-2554
175/4.3L, 4.3 LX (262 CID)
B527955
Up
--
18-3668
18-3551
18-2552
18-7173
18-2552
18-7173
175/4.3L, 4.3 LX (262 CID)
F001220
Up
--
18-3648
18-3649
180/3.7L-LX (4 CYL)
6916779
Up
--
18-3667
18-3555
18-2555
180
224/L4
1987
B436391
B775248
18-3667
18-3555
18-2555
18-3668
18-3551
18-2553
18-2554
185 (229 CID)
6330183
6919655
18-1994
18-3668
18-3551
18-2553
18-2554
185 (262 CID)
A331455
B527954
18-1994
190
1564539
1730903
--
18-3551
--
--
190
224/L4
1985-1986
6916779
B436390
18-3667
18-3555
18-2555
3.7L
224/L4
1988-1989
B774552
& Up
18-3667
18-3555
18-2555
3.7LX
224/L4
1988-1989
B775249
& Up
18-3667
18-3555
18-2555
470 MCM/MIe
224/L4
1976-1982
4208730
6218036
18-3552
18-2843
470
224/L4
1983-1984
6218037
6916778
18-3667
18-3555
18-2555
485
224/L4
1980-1982
5685394
6218036
18-3552
18-2555
488
224/L4
1983-1984
6170297
6916778
18-3667
18-3555
18-2555
140 (6 CYL)
194/L6
1963
1538930
1725960
18-3551
18-3551
150
230/L6
1964-1966
1666495
2048046
18-3551
150
230/L6
1964-1966
1727985
2048046
18-3551
160
250/L6
1967-1969
2048022
2770031
18-3551
160
250/L6
1967
2048022
2233574
,
18-3557
18-2831
160
250/L6
1968-1969
2326096
2770031
18-1910
18-3650
18-3550
18-2831
165 (6 CYL)
250/L6
1970-1981
2770032
5813433
18-1910
18-3557
18-2831
200 (6 CYL)
292/L6
1969
2453769
2712072
18-1910
185 (4bbl)
229-V-6
1983-1984
6330183
6919655
18-3678
18-3668
18-3551
18-2554
18-2553
18-2917
18-1977-1
18-3668
18-3551
18-2554
18-2553
18-2917
262/V-6
1987
B527955
B773242
18-1994
175
,
18-3668
18-3551
18-7173
18-2917
262/V-6
1987
B527955
B773242
175
262/V-6
1985-1986
A331455
B527954
18-1994
18-1977-1
18-3668
18-3551
18-2554
18-2553
18-2917
185 (2bbl)
262/V-6
1985-1986
A331455
B527954
18-3668
18-1977-1
18-3668
18-3551
18-2554
18-2553
18-2917
205
18-1977-1
18-3668
18-3551
18-2554
18-2917
262/V-6
1987
B527955
B775129
18-3668
205
,
18-3668
18-3551
18-7173
18-2552
18-2917
262/V-6
1967
B527955
B775129
205
B527955
D714369
--
18-3668
18-3551
18-2552
18-7173
205/4.3L, 4.3 LX (262 CID)
18-2552
18-7173
205/4.3L, 4.3 LX (262 CID)
F001220
Up
--
18-3648
18-3649
215 ForD
2781153
3040410
--
18-3551
--
--
215 ForD
3040411
Up
--
18-3651
18-3551
18-2834
--
18-2834
--
215 ForD MCM/MIe
3040411
3385720
--
18-3646
18-3649
18-2834
--
225 ForD MCM/MIe
3385721
4176999
--
18-3646
18-3649
262 MAG eFI ALpHA
262/V-6
1996-1997
0F803800
0K999999
18-3647
18-3647
18-3649
18-2917
262 MAG eFI BrAVo
262/V-6
1996-1997
0F803800
0K999999
18-3647
18-3647
18-3649
18-2917
18-1977-1
18-3668
18-3551
18-2554
18-2553
18-2917
4.3L
262/V-6
1988-1993
B773243
F000877
18-1994
,
18-3668
18-3551
18-7173
18-2552
18-2917
262/V-6
1987-1993
B773243
F000877
4.3L
,
18-3668
18-3649
18-2917
18-2552
18-2917
262/V-6
1993-1995
F000878
F601126
18-3647
4.3L
18-3668
18-3551
18-0398
262/V-6
1993-1995
F000878
F601126
4.3L
18-3568
18-3555
18-0398
4.3L FWC
262/V-6
1993-2002
F000878
M614999
18-3531
18-3647
18-3649
18-2917
4.3L ALpHA
262/V-6
1996-2002
0F601127
M614999
18-3647
18-3647
18-3649
18-2917
4.3L BrAVo
262/V-6
2996-2002
0F601127
M614999
18-3647
18-0398
4.3L FWC
262/V-6
2002-2010
M615000
& Up
18-3647
18-3649
18-0398
4.3L
262/V-6
2002-2010
M615000
& Up
18-3568
18-3555
18-0398
4.3L eFI FWC
262/V-6
1998-2001
L012009
M299999
18-3531
18-3647
18-3649
18-0398
4.3L eFI ALpHA
262/V-6
1998-2001
L012009
M299999
18-3647
18-3649
18-0398
4.3L eFI BrAVo
262/V-6
1998-2001
L012009
M299999
18-3530-1
,
18-3647
18-3649
18-0398
4.3L MpI
262/V-6
2002-2010
M300000
& Up
,
18-3647
18-3649
18-0398
4.3L MpI
262/V-6
2002-2010
M300000
& Up
,
18-3647
18-3649
18-0398
4.3L MpI eC
262/V-6
2010-2011
A637496
& Up
18-3568
18-3555
18-0398
4.3L MpI FWC
262/V-6
2002
M300000
M614999
18-0398
4.3L MpI FWC
262/V-6
2002-2010
M615000
& Up
18-3568
18-3555
18-0398
4.3LH FWC
262/V-6
1998-2002
L010044
M614999
18-3531
18-3647
18-3649
18-0398
4.3LH ALpHA
262/V-6
1998-2002
L010044
M614999
18-3647
18-3649
18-0398
4.3LH BrAVo
262/V-6
1998-2002
L010044
M614999
18-3530-1
18-1977-1
18-3668
18-3551
18-2554
18-2553
18-2917
4.3LX
262/V-6
1988-1993
B775130
F001219
18-1994
,
18-3668
18-3551
18-7173
18-2552
18-2917
262/V-6
1988-1993
B775130
F001219
4.3LX
,
18-3668
18-3551
18-7173
18-2552
18-2917
262/V-6
1993-1995
F001220
F601126
4.3LX
18-3668
18-3551
18-0398
262/V-6
1993-1995
F001220
F601126
43.LX
18-3567
18-3555
18-0398
4.3LX FWC
262/V-6
1993-1997
F001220
K999999
18-3647
18-3649
18-0398
4.3LX ALpHA
262/V-6
1996-1997
F601127
K999999
18-3647
18-3649
18-0398
4.3LX BrAVo
262/V-6
1996-1997
F601127
K999999
18-3530-1
18-3568
18-3555
18-0398
4.3LXH FWC
262/V-6
1996-1997
F803114
K999999
18-3531
18-3647
18-3649
18-0398
4.3LXH ALpHA
262/V-6
1996-1997
F803114
K999999
18-3530-1
18-3647
18-3649
18-0398
4.3LXH BrAVo
262/V-6
1996-1997
F803114
K999999
18-3530-1
215 MCM/MIe (ForD)
302/V-8
1970
2781153
3040410
18-3649
215 MCM/MIe (ForD)
302/V-8
1971-1972
3040411
3385720
18-3646
18-3551
18-2834
225 MCM/MIe (ForD)
302/V-8
1973-1974
3385721
4176999
18-3646
18-3551
18-2834
18-3646
18-3551
18-2834
888 (ForD)
302/V-8
1971-1977
3108723
4887829
190
283/V-8
1963-1964
1564539
1730903
18-3551
198 MIe
305/V-8
1977
4776402
4931099
18-1977-1
18-3646
18-3551
18-2844
18-0398
200
305/V-8
1985-1987
6899058
B774444
18-1994
18-1977-1
18-3668
18-3551
18-2554
18-2553
18-2917
18-3668
18-3551
18-2553
18-2554
6218462
B525981
18-1994
200 GM
18-2917
--
200/5.0L
0B525982
0F600999
18-3647
18-3649
18-3668
18-3551
18-2553
18-2554
200/5.0L GM
B525982
Up
18-1994
18-3648
18-3649
18-2552
18-7173
200/5.0L GM
B525982
Up
18-1994
228
305/V-8
1977-1982
4765100
6218461
18-1977-1
18-3646
18-3551
18-2844
18-0398
228
305/V-8
1982-1984
6218462
6899268
18-1994
18-1977-1
18-3668
18-3551
18-2554
18-2553
18-2917
305/V-8
1977-1980
4765100
5907057
18-3651
18-1977-1
18-3646
18-3551
18-2844
18-1993
228 MIe
230
305/V-8
1985-1987
6899269
B773739
18-1994
18-1977-1
18-3668
18-3551
18-2554
18-2553
18-2917
18-1977-1
18-3668
18-3551
18-2554
18-2553
18-2917
230 MIe
305/V-8
1981-1987
5907058
B788151
18-1994
18-1977-1
18-3646
18-3551
18-2553
18-2844
18-2917
230 MIe FWC
305/V-8
1981-1987
5907058
B788151
18-3668
18-3551
18-2553
18-2554
6218462
B525981
18-1994
230 GM
18-2553
18-2844
18-2917
230 MIe
5907058
0B5225505
18-3646
18-3649
18-3668
18-3551
18-2553
18-2554
5907058
B522505
230 GM IB
18-3651
18-3551
18-2553
18-2844
230 GM IB
5907058
B522505
,
18-3668
18-3551
18-2553
18-2554
18-2917
230/5.0L GM IB
B522506
B525981
➂➄
,
18-3648
18-3649
18-2552
18-7173
18-2917
B522506
B525981
230/5.0L GM IB
➃➄
B522506
B525981
18-3651
18-3551
18-2553
18-2844
18-2917
230/5.0L GM IB
18-3668
18-3551
18-2553
18-2554
B525982
F600999
18-1994
230/5.0L-LX GM
230/5.0L-LX GM
B525982
Up
18-3668
18-3551
18-2552
18-7173
18-2552
18-7173
230/5.0L GM IB
B522506
B525981
18-3648
18-3649
18-3648
18-3649
18-2552
18-7173
230/5.0L-LX GM
B525982
F600999
18-1994
18-2553
18-2844
18-2917
230/5.0L MIe
0B522506
0B788151
18-3646
18-3649
18-2917
--
0B525982
0F600999
18-3647
18-3649
230/5.0LX GM
18-1977-1
18-3668
18-3551
18-2554
18-2553
5.0L
305/V-8
1988-1995
B774445
F600999
18-1994
,
18-3668
18-3551
18-7173
18-2552
5.0L
305/V-8
1988-1995
B774445
F600999
Design I
Without check ball
160 degree
7-point drain system
Design II
SN 4167000 & Up
Mechanical Throttle Body
For Stainless Steel version use 18-1989
Design III
Original thermostat housing listed as NLA.
Digital Throttle Body
Aluminum Exhaust Manifold
Emission Control Engine
Order update kit 87290A23
Cast Iron Exhaust Manifold
Manual drain system
Original thermostat housing listed as NLA.
Closed Cooling
Air Actuated drain system
Order update kit 90736A24
Standard Cooling
Complete thermostat housing kit kit
Old Design
With check ball
New Design
Single and 3-point drain system
636