Page 783 - 2021 Sierra Catalog
P. 783
I/O — MERCRUISER - Cooling System
Engine/Model
CID/#CYL
Year Range
1995-2001 1997
1997 1988-1995 1988-1995 1988-1995 1988-1996 1997-2002 1996-2002 2002-2010 2002-2010 2008-2010 2008-2010 2008-2010 2008-2010 2008-2010
2008-2010 2008-2010 2008-2010 2008-2010 1985-1995 1987-1995 1987-1995 1996-2002 2002-2010 1995-1997 1995-1997 1996 1997 1996
1997
1996-1997
1996 1997 1996-1997 1996-1997
1996-2001 2003-2006
Beginning Ending Serial # Serial #
F225560 M299999 K040300 K999999
K040300 K999999 B788152 F600999 B788152 F622099 B788152 F622099 B788152 K04306 K040307 M316999 F622100 M316999 M317000 &UP M317000 &UP A0900000 &UP A0900000 &UP A0900000 &UP A0900000 &UP A0900000 &UP
A0900000 &UP A0900000 &UP A0900000 &UP A0900000 &UP A338553 F775199 B514627 F775199 B514627 F775199 F775200 M316999 M317000 &UP F601000 K999999 F601000 K999999 F601000 K001526 K001527 K999999 F800300 K001508
K001509 K999999 F800300 K999999
F752400 K001505 K001506 K999999 F752400 K999999 F752400 K999999 F225560 0K999999 F225560 0K999999 L010037 UP L010037 UP F025000 0F622099 F622100 0K999999 F622100 0K999999 L002003 UP 0F800000 M391599 M391600 W690192
Housing
❼ 18-3531 ❻
❼ 18-1994 ❶ ❼,❽ ❼,❾
❻ 18-3531 ❻ ❼
❻
❼
❻
❻
❻,➆ ❻,➅,➇ ❼,➆,➇
❼ ❼,➇
➇ 18-1994 ❶ ❷,❽ ❷,❾
➂
❼
❼
❼
❻ 18-3531 ❻ ❻
❻
❼
❻ 18-3531 ❻ ❼
❼
Thermostat Cover
18-1977-1
Thermostat & Gasket Kit
18-3647 18-3568
18-3647 18-3668 18-3668 18-3668 18-3647 18-3568 18-3647
18-3647
18-3647 18-3647 18-3647 18-3647 18-3668 18-3668 18-3668 18-3647 18-3647 18-3647 18-3647 18-3647 18-3568 18-3647
18-3568 18-3647
18-3647 18-3568 18-3647 18-3647 18-3647 18-3647 18-3647 18-3647 18-3647 18-3647 18-3647 18-3647 18-3647 18-3647
Thermostat Gaskets Req.
18-3649 18-0398 18-3555 18-1508
18-3649 18-0398 18-3551 18-2554 18-3551 18-7173 18-3555 18-7173 18-3649 18-2844 18-3555 18-1508 18-3649 18-0398
18-0398 18-3649 18-0398 18-0398 18-0398 18-0398 18-0398 18-0398
18-3649 18-0398 18-3649 18-0398 18-3649 18-0398 18-3649 18-0398 18-3551 18-2554 18-3551 18-7173 18-3551 18-7173 18-3649 18-0398 18-3649 18-0398 18-3649 18-0398 18-3649 18-0398 18-3649 18-2844 18-3555 18-1508 18-3649 18-2844
18-3555 18-0398 18-3649 18-0398
18-3649 18-2844 18-3555 13-0398 18-3649 18-0398 18-3649 18-0398 18-3649 18-2917 18-3649 18-2917 18-3649 18-2917 18-3649 18-2917 18-3649 18-2844 18-3649 18-2917 18-3649 18-2844 18-3649 18-2917 18-3649 18-0398 18-3649 18-0398
Gaskets Req. - Design II
18-2553
Gaskets Req. - Design III
18-2917 18-2917 18-2917
5.7L EFI BRAVO
5.7L EFI MIE (GEN +) FWC
5.7L EFI MIE (GEN+) 5.7L MIE
5.7L MIE
5.7L MIE
350/V-8 350/V-8
350/V-8 350/V-8 350/V-8 350/V-8 350/V-8 350/V-8 350/V-8 350/V-8 350/V-8 350/V-8 350/V-8 350/V-8 350/V-8 350/V-8
350/V-8 350/V-8 350/V-8 350/V-8 350/V-8 350/V-8 350/V-8 350/V-8 350/V-8 350/V-8 350/V-8 350/V-8 350/V-8 350/V-8
350/V-8 350/V-8
350/V-8 350/V-8 350/V-8 350/V-8
350/V-8 350/V-8
5.7L MIE
5.7L MIE
5.7L MIE
5.7L MIE
5.7L MIE
5.7L MPI
5.7L MPI
5.7L MPIMIEFWCDTS 5.7L MPIMIEFWCEC 5.7L MPIMIEFWC
EC DTS
5.7L MPI MIE
5.7L MPI MIE EC
5.7L MPI SKI
5.7L MPI SKI EC
5.7L SKI
5.7L SKI
5.7L SKI
5.7L SKI
5.7L SKI
5.7LX ALPHA
5.7LX BRAVO
5.7LX RWC
5.7LX RWC
5.7LX BRAVOEFI(GEN +) FWC
5.7LX BRAVOEFI(GEN +) FWC
5.7LX BRAVO EFI (GEN +)
5.7LX EFI FWC 5.7LX EFI FWC 5.7LX EFI ALPHA 5.7LX EFI BRAVO 5.7 GM ALPHA
5.7 GM BRAVO
5.7L/EFI GM ALPHA 5.7L/EFI GM BRAVO 5.7L MIE
5.7L MIE
5.7L MIE
5.7L MIE
BLACK SCORPION SKI BLACK SCORPION SKI
FWC FWC
FWC
HORIZON MIE MIE FWC
❶ Design I
❷ Design II
❸ Design III
❹ Aluminum Exhaust Manifold ❺ Cast Iron Exhaust Manifold ❻ Closed Cooling
❼ Standard Cooling ❽ With check ball
❾ Without check ball
❿ SN 4167000 & Up
➀ Original thermostat housing listed as NLA. Order update kit 87290A23 ➁ Original thermostat housing listed as NLA. Order update kit 90736A24 ➂ Complete thermostat housing kit kit
➃ Single and 3-point drain system
➄ 7-point drain system
➅ Mechanical Throttle Body
➆ Digital Throttle Body
➇ Emission Control Engine
➈ Manual drain system
➉ Air Actuated drain system
☞ Old Design
♠ New Design
♣ 160 degree
♥ For Stainless Steel version use 18-1989
765
THERMOSTAT APPLICATION (Cont.)
➈
18-1977-1
18-2553
18-0398 18-0398
18-0398
— — — — — — — —
18-0398 18-0398 18-0398
