Sierra / Mallory

Additional Details:

• Temperature Rating: 180° (82 C)

Interchanges/Replaces

Volvo Penta

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2933	Mallory 9-60001 Volvo Penta 1317466 416033 418361	1	Thermostat Gasket		N/A
18-7181	GLM 45060 Volvo Penta 925091 975672	1	O-Ring		N/A

Additional Details:

• Temperature Rating: 160° (71 C)

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-3558	GLM 13070 OMC Stern Drive 3853799 982554 Volvo Penta 3853799	1	Thermostat		N/A
18-0164	GLM 31340 Mallory 9-60074 Mercruiser Stern Drive 27-8146801 OMC Stern Drive 311069 3789161 3852096 Volvo Penta 3852096 Yamaha Sterndrive GM 3789161 YSC-13080-00-0C	1	Thermostat Housing Gasket		N/A
NSS	Mercruiser Stern Drive 25-805063	1	O-Ring	No Image	N/A

Key Features:

• 6H3-12411-11-00 + 62Y-12414-00-00 = 18-3622 kit

Additional Details:

• Temperature Rating: 122°F / 50°C

Interchanges/Replaces

Yamaha Outboard

• 6H3-12411-00-00
• 6H3-12411-01-00
• 6H3-12411-10-00
• 6H3-12411-11-00

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-0835	Mercury Marine 27-824853 27-8248531 Yamaha Outboard 62Y-12414-00-00 65W-12414-00-00 6H2-12414-00-00 6H2-12414-A1-00	1	Thermostat Gasket		N/A

Additional Details:

• For: Volvo 8.1 (All Models) 2000-Current

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-7170	Chrysler/Force/US Marine 25-33504 GLM 82200 Johnson/Evinrude Outboard 307239 Mallory 9-76502 Mercruiser Stern Drive 25-33504 Mercury Marine 25-33504 OMC Stern Drive 307239 3852071 Volvo Penta 3852071	1	O-Ring		N/A

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-3536	Mercury Marine 833072 833072003	2	Thermostat		N/A
18-3675	Mercury Marine 27-850318 27-8503181 Mercury Sport Jet 27-8503181	2	Thermostat Cover Gasket		N/A
18-0182	GLM 30610 Johnson/Evinrude Outboard 310058 Mallory 9-60002 Mercury Marine 27-62386 27-62386001 Mercury Race Outboard 27-62386001	2	Thermostat Gasket		N/A

Additional Details:

• Temperature Rating: 130°F

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-3535	Mercury Marine 885599003 885599004 8855991 8M0057307	2	Thermostat		N/A
18-3675	Mercury Marine 27-850318 27-8503181 Mercury Sport Jet 27-8503181	2	Thermostat Cover Gasket		N/A

Additional Details:

• Temperature Rating: 60° Celcius

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-3541	Mallory 9-43037 Yamaha Outboard 66M-12411-00-00 66M-12411-01-00 6G8-12411-00-00 6G8-12411-01-00 6G8-12411-02-00 6G8-12411-03-00	1	Thermostat		N/A
18-0835	Mercury Marine 27-824853 27-8248531 Yamaha Outboard 62Y-12414-00-00 65W-12414-00-00 6H2-12414-00-00 6H2-12414-A1-00	1	Thermostat Gasket		N/A

Key Features:

• 160°

Additional Details:

• Fits: GM V-6 & V-8 engines with closed cooling (1998 & newer)

Interchanges/Replaces

Mercruiser Stern Drive

• 99155T1

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-3555	GLM 13040 Mallory 9-43001 9-43016 Mercruiser Stern Drive 991551 99155A1 99155T2	1	Thermostat		N/A
18-1508	GLM 85860 Mercruiser Stern Drive 25-807134 25-8071341	1	Thermostat Seal		N/A

Additional Details:

• Includes: sealing ring

Interchanges/Replaces

Volvo Penta

• 3831424

Additional Details:

• Temperature Rating: 190F

Interchanges/Replaces

Kohler

• 249970
• 29963

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
23-3608	Kohler 249930	1	Thermostat		N/A
23-0813	Kohler 229963	1	Thermostat Gasket		N/A

Additional Details:

• Temperature Rating: 150° (66 C)

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
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

Additional Details:

• Temperature Rating: 150° (66 C)

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-3615	Volvo Penta 3587597	1	Thermostat - Raw Water		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
NSS	Yamaha 93210-45161-00	1	O-Ring	No Image	N/A

Key Features:

• For: 7.4L (1994-98), 8.2L (1998)

Additional Details:

• Temperature Rating: 140° (60 C)

Interchanges/Replaces

Mallory

• 9-43026

Volvo Penta

• 3853983

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-7170	Chrysler/Force/US Marine 25-33504 GLM 82200 Johnson/Evinrude Outboard 307239 Mallory 9-76502 Mercruiser Stern Drive 25-33504 Mercury Marine 25-33504 OMC Stern Drive 307239 3852071 Volvo Penta 3852071	1	O-Ring		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
NSS	Volvo Penta 3853983	1	Thermostat	No Image	N/A

Interchanges/Replaces

Johnson/Evinrude Outboard

• 335981

Additional Details:

• Fits: MCM/MIE GM V-6 & V-8 with closed cooling

Interchanges/Replaces

GLM

• 85860

Mercruiser Stern Drive

• 25-807134
• 25-8071341

Use With:

• 18-1989: Thermostat Housing

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
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
18-2554	GLM 31630 Mallory 9-60006 Mercruiser Stern Drive 27-41812 27-41812B 27-41812Q 27-90556 Osco 41812	1	Thermostat Cover Gasket		N/A
18-2844	Barr MC472748818 GLM 31510 Mallory 9-60010 Mercruiser Stern Drive 27-48818 27-488181 27-48818Q01	1	Thermostat Gasket		N/A

Key Features:

• Includes thermostat and housing

Additional Details:

• Fits: 135-300 Verado

Interchanges/Replaces

Mercury Marine

• 892864T04

Key Features:

• Medium Strength

Additional Details:

• Color: Blue Gel

Key Features:

• Medium Strength

Additional Details:

• Color: Red Gel

Interchanges/Replaces

Honda Outboard

• 16176-P0A-004