Key Features:

• For: Ford 302 / 351 CID Engines

Additional Details:

• Temperature Rating: 142°F
• Used on all: V-8 Chrysler engines w/Rochester carburetors 1986 - present
• For: Raw water cooled engines

Use With:

• 18-3646: Thermostat Kit
• 18-3646D: Thermostat Kit (Display Pack)
• 18-3651: Thermostat Kit
• 18-3651D: Thermostat Kit (Display Pack)
• 18-3662: Thermostat Kit
• 18-3668: Thermostat Kit
• 18-3668D: Thermostat Kit (Display Pack)
• 18-3671: Thermostat Kit
• 18-3671D: Thermostat Kit (Display Pack)

Interchanges/Replaces

Chrysler Inboard

• 4142885

Crusader

• 96319

GLM

• 13030

Mallory

• 9-43013

Mercruiser Stern Drive

• 32728
• 35884
• 59137
• 59137A1
• 67464
• 8052731
• 8072521
• 807252T1
• 8M0089715

Osco

• 143-DEG

Pleasurecraft

• RO26002E

Additional Details:

• Temperature Rating: 145° (63 C)

Interchanges/Replaces

GLM

• 13381

Mallory

• 9-43004

Volvo Penta

• 875794
• 876305

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-3551	Chrysler Inboard 4142885 Crusader 96319 GLM 13030 Mallory 9-43013 Mercruiser Stern Drive 32728 35884 59137 59137A1 67464 8052731 8072521 807252T1 8M0089715 Osco 143-DEG Pleasurecraft RO26002E	1	Thermostat		N/A
18-2933	Mallory 9-60001 Volvo Penta 1317466 416033 418361	1	Thermostat Gasket		N/A
18-0398	GLM 35060 Mallory 9-60009 Mercruiser Stern Drive 27-33918 27-8M2021920 OMC Stern Drive 312797 3852111 Volvo Penta 3852111 835417 856347	1	Thermostat Gasket		N/A

Additional Details:

• Temperature Rating: 142°F
• Fits: 1983 & newer GM V-6 & V-8 engines with standard cooling

Interchanges/Replaces

GLM

• 13390

Mallory

• 9-43150

Mercruiser Stern Drive

• 807252Q4
• 807252T4
• 807252T7

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2552	GLM 31670 Mallory 9-60008 Mercruiser Stern Drive 27-331791 27-331792 27-33179B2	1	Thermostat Cover Gasket		N/A
18-2553	GLM 31460 Mallory 9-60005 Mercruiser Stern Drive 27-47510 27-47510Q Osco 47510	1	Thermostat Cover Gasket		N/A
18-2554	GLM 31630 Mallory 9-60006 Mercruiser Stern Drive 27-41812 27-41812B 27-41812Q 27-90556 Osco 41812	1	Thermostat Cover Gasket		N/A
18-2917	GLM 31560 GM 3701777 Mallory 9-60007 9-60007-10 Mercruiser Stern Drive 27-33179 27-53045 27-530451 27-53045B1 F10077105 FI1101276 FI1101291 FI5000096 OMC Inboard 3701777 OMC Stern Drive 3701777	1	Thermostat Gasket		N/A
18-3551	Chrysler Inboard 4142885 Crusader 96319 GLM 13030 Mallory 9-43013 Mercruiser Stern Drive 32728 35884 59137 59137A1 67464 8052731 8072521 807252T1 8M0089715 Osco 143-DEG Pleasurecraft RO26002E	1	Thermostat		N/A
18-7173	Chrysler/Force/US Marine 25-30224 GLM 82250 Johnson/Evinrude Outboard 310327 Mallory 9-76501 Mercruiser Stern Drive 25-30224 25-30224Q Mercury Marine 25-27018 25-30224 25-30224Q OMC Stern Drive 310327	1	O-Ring		N/A

Key Features:

• 140°F

Additional Details:

• Fits: 1982 & older Ford & GM V-8 engines w/standard cooling & 1996 & older hi-performance models
• Fits: engines with closed cooling

Interchanges/Replaces

GLM

• 13380

Mallory

• 9-43151

Mercruiser Stern Drive

• 807252Q3
• 807252T6

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2553	GLM 31460 Mallory 9-60005 Mercruiser Stern Drive 27-47510 27-47510Q Osco 47510	1	Thermostat Cover Gasket		N/A
18-2834	Barr MC472760208 GLM 31620 Mallory 9-60011 Mercruiser Stern Drive 27-60208	1	Thermostat Cover Gasket		N/A
18-2844	Barr MC472748818 GLM 31510 Mallory 9-60010 Mercruiser Stern Drive 27-48818 27-488181 27-48818Q01	1	Thermostat Gasket		N/A
18-2917	GLM 31560 GM 3701777 Mallory 9-60007 9-60007-10 Mercruiser Stern Drive 27-33179 27-53045 27-530451 27-53045B1 F10077105 FI1101276 FI1101291 FI5000096 OMC Inboard 3701777 OMC Stern Drive 3701777	1	Thermostat Gasket		N/A
18-3551	Chrysler Inboard 4142885 Crusader 96319 GLM 13030 Mallory 9-43013 Mercruiser Stern Drive 32728 35884 59137 59137A1 67464 8052731 8072521 807252T1 8M0089715 Osco 143-DEG Pleasurecraft RO26002E	1	Thermostat		N/A

Additional Details:

• Temperature Rating: 142°F

Interchanges/Replaces

GLM

• 13380

Mallory

• 9-43152

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2553	GLM 31460 Mallory 9-60005 Mercruiser Stern Drive 27-47510 27-47510Q Osco 47510	1	Thermostat Cover Gasket		N/A
18-2554	GLM 31630 Mallory 9-60006 Mercruiser Stern Drive 27-41812 27-41812B 27-41812Q 27-90556 Osco 41812	1	Thermostat Cover Gasket		N/A
18-2834	Barr MC472760208 GLM 31620 Mallory 9-60011 Mercruiser Stern Drive 27-60208	1	Thermostat Cover Gasket		N/A
18-2844	Barr MC472748818 GLM 31510 Mallory 9-60010 Mercruiser Stern Drive 27-48818 27-488181 27-48818Q01	1	Thermostat Gasket		N/A
18-3551	Chrysler Inboard 4142885 Crusader 96319 GLM 13030 Mallory 9-43013 Mercruiser Stern Drive 32728 35884 59137 59137A1 67464 8052731 8072521 807252T1 8M0089715 Osco 143-DEG Pleasurecraft RO26002E	1	Thermostat		N/A