Page 784 - 2021 Sierra Catalog

766
Engine/Model
CID/#CYL
Year Range
2006-2007 2003-2007 2008-2010 2008-2010 2008-2010 1975-1977 1975-1977 1973-1974 2008-2010 2008-2010 2008-2010 2008-2010
2008-2010 2008-2010 2008-2010 1999-2005 1997-1998 2000-2001 2000-2001 2002 2002-2007 2002-2007 2002-2007 2002 2002-2007 2002
2002-2010
1999-2002 2002-2010 2008-2010
2008-2010 2008-2010
2002-2010 2008-2010 2001-2002
2003-2006 2006-2007
2008-2010 2008-2010 2008-2010 1969-1972 1977-1981
1982-1987
Beginning Ending Serial # Serial #
W690193 W698432 M391600 W698433 W698433 &UP W698433 &UP W698433 &UP 4173000 4902304 4173000 4902304 3258728 4178299 A300000 &UP A300000 &UP A300000 &UP A300000 &UP
A300000 &UP A300000 &UP A300000 &UP L416146 M907201 K000656 L600314 L680003 M299999 L680003 M299999 M300000 M599999 M600000 A299999 M300000 A299999 M300000 A299999 M300000 M599999 M600000 A299999 M300000 M316999
M317000 &UP
L670000 M316999 M317000 &UP A0900000 &UP
A0900000 &UP A0900000 &UP
M300000 &UP A0900000 &UP L005601 M391599
M391600 W690192
W690192 W698432
W698433 &UP W698433 &UP A091488 A092170 2278747 3780449 4623115 6083144
Housing
➈ ➉ ➈ ➉ ➇
❻,➅ ❻,➆ ❻,➇ ❻,➆,➇
❼,➃ ❼,➄ ❼,➇
18-3531 ❻ ❼
❻
❻
❼,➃ ❼,➄ ❻
❻
❻
❻
❻ ❻,➅ ❻,➆
❻,➅,➇
❻,➆,➇
❼ ❼
➈ ➈
➈ ➉ ➇
Thermostat Cover
Thermostat & Gasket Kit
18-3647 18-3647 18-3647 18-3647 18-3647 18-3646 18-3646 18-3646
18-3647 18-3647 18-3647
18-3647 18-3568 18-3647 18-3568
18-3647 18-3647 18-3568
18-3568
18-3568
18-3647 18-3647 18-3647
18-3647 18-3647
18-3647 18-3647 18-3647 18-3646 18-3646
Thermostat Gaskets Req.
18-3649 18-0398 18-3649 18-0398 18-3649 18-0398 18-3649 18-0398 18-3649 18-0398 18-3551 18-2834 18-3551 18-2834 18-3551 18-2834
18-0398 18-0398 18-0398 18-0398
18-3649 18-0398 18-3649 18-0398 18-3649 18-0398 18-3551 18-0398 18-3649 18-0398 18-3555 18-0398 18-3649 18-0398 18-3555 18-0398
18-0398 18-3649 18-0398 18-3649 18-0398 18-3555 18-0398 18-0398 18-3555 18-0398
18-0398
18-3555 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 18-3649 18-0398
18-3649 18-0398 18-3649 18-0398 18-3649 18-0398 18-3551 18-2553 18-3551 18-2844
18-3551 18-2553
Gaskets Req. - Design II
Gaskets Req. - Design III
BLACK SCORPION SKI BLACK SCORPION SKI SCORPION 350 SCORPION 350 SCORPION 350 EC 233 MCM (FORD)
233 MIE (FORD)
255 MCM/MIE (FORD)
350/V-8 350/V-8 350/V-8 350/V-8 350/V-8 351/V-8 351/V-8 351/V-8 377/V-8 377/V-8 377/V-8 377/V-8
377/V-8 377/V-8 377/V-8 377/V-8 377/V-8 377/V-8 377/V-8 377/V-8 377/V-8 377/V-8 377/V-8 377/V-8 377/V-8 377/V-8
377/V-8
377/V-8 377/V-8 377/V-8
377/V-8 377/V-8
377/V-8 377/V-8 377/V-8
377/V-8 377/V-8
377/V-8 377/V-8 377/V-8 427/V-8 454/V-8
454/V-8
377 MAG
377 MAG
377 MAG
377 MAG DTS
FWC FWC DTS FWC EC FWC EC
377 MAG
377 MAG
377 MAG
377 SCORPION MCM 377 SCORPION SKI
MX 6.2L
MX 6.2L
MX 6.2L
MX 6.2L
MX 6.2L
MX 6.2L
MX 6.2L
EC
MPI FWC MPI
MPI FWC MPI FWC MPI
MPI
MPI HORIZON
18-1977-1
18-2553
MX6.2L MPIHORIZON
MX6.2L MPIHORIZON
MIE
MX6.2L MPIHORIZON MIE
MX6.2L MPI MIE FWC
MX6.2L MPI MIE FWC
MX 6.2L MPI MIE FWC DTS
MX6.2L MPIMIE FWC EC
MX 6.2L MPI MIE FWC EC DTS
MX 6.2L MPI MIE
MX 6.2L MPI MIE
MX 6.2L BLACK SCORPION
MX6.2L BLACK SCORPION
MX6.2L BLACK SCORPION
SCORPION 377 SCORPION 377 SCORPION377 HO EC 325 MCM/MIE
330 (WITHMERC TRANS)
330 (WITHB/W) FWC ❶ Design I
18-3646 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
18-0398 18-0398
18-0398
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
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
6083145 B816540
❻
THERMOSTAT APPLICATION (Cont.)
I/O — MERCRUISER - Cooling System