Additional Details:

• Fits: Alpha One Gen II drives

Interchanges/Replaces

GLM

• 85590

Mallory

• 9-43628

Mercruiser Stern Drive

• 26-816575A2

Mercury Marine

• 26-816575A2

Interchanges/Replaces

GLM

• 12415

Mallory

• 9-48314

Mercruiser Stern Drive

• 817275A1

Mercury Marine

• 817275A1

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-7420	GLM 82110 Mallory 9-76565 Mercruiser Stern Drive 25-21836 Mercury Marine 25-21836 Mercury Race Outboard 25-21836 Mercury Race Sterndrive 25-21836 Mercury Sport Jet 25-21836	1	O-Ring		N/A
18-2566	Chrysler/Force/US Marine 27-817277 GLM 30290 Mallory 9-60023 Mercruiser Stern Drive 27-817277 27-8172771 Mercury Marine 27-817277 27-8172771	1	Impeller Gasket		N/A
18-2564	Chrysler/Force/US Marine 27-430331 GLM 30090 Honda Outboard 19234-ZW1-003 Mallory 9-60020 Mercruiser Stern Drive 27-430331 Mercury Marine 27-43033 27-430331	1	Impeller Gasket		N/A
18-2599	GLM 85590 Mallory 9-43628 Mercruiser Stern Drive 26-816575A2 Mercury Marine 26-816575A2	1	Face Seal and Tool		N/A

Additional Details:

• For: Gen II - Lower S/N D469859 & up

Interchanges/Replaces

Mallory

• 9-48315

Mercruiser Stern Drive

• 817275K05
• 817275Q05
• 817275Q4
• 817275T4

Mercury Marine

• 817275A5

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2354	GLM 12341 Mallory 9-72642 Mercruiser Stern Drive 807929A1 821759A2 821759A4 Mercury Marine 807929A1 807929A2 815922A1 815922A5 821759A1 821759A2 821759A3 821759A4	1	Carrier Seal		N/A
18-3056	Chrysler/Force/US Marine 47-430262 GLM 89630 Honda Outboard 19210-ZW1-303 Mallory 9-45307 Mercruiser Stern Drive 47-430262 47-43026T2 Mercury Marine 43026Q02 47-430261 47-430262 47-430264 47-43026B2 47-43026T2	1	Impeller		N/A
18-3122	Chrysler/Force/US Marine 817276 8172761 GLM 12500 Honda Outboard 19231-ZW1-003 Mallory 9-43413 Mercruiser Stern Drive 817276 Mercury Marine 817276 8172761 8172763	1	Impeller Plate		N/A
18-3293	Chrysler/Force/US Marine 28-43037 GLM 11071 Mallory 9-43702 9-43720 Mercruiser Stern Drive 28-43037 Mercury Marine 28-43037 28-8M0032833	1	Impeller Key		N/A
18-7420	GLM 82110 Mallory 9-76565 Mercruiser Stern Drive 25-21836 Mercury Marine 25-21836 Mercury Race Outboard 25-21836 Mercury Race Sterndrive 25-21836 Mercury Sport Jet 25-21836	2	O-Ring		N/A
18-2944	GLM 85140 Mallory 9-76512 Mercruiser Stern Drive 26-45577 26-455771 26-45577B 26-45577B1	1	Seal Ring Gasket		N/A
18-2599	GLM 85590 Mallory 9-43628 Mercruiser Stern Drive 26-816575A2 Mercury Marine 26-816575A2	1	Face Seal and Tool		N/A
18-2564	Chrysler/Force/US Marine 27-430331 GLM 30090 Honda Outboard 19234-ZW1-003 Mallory 9-60020 Mercruiser Stern Drive 27-430331 Mercury Marine 27-43033 27-430331	1	Impeller Gasket		N/A
18-2566	Chrysler/Force/US Marine 27-817277 GLM 30290 Mallory 9-60023 Mercruiser Stern Drive 27-817277 27-8172771 Mercury Marine 27-817277 27-8172771	1	Impeller Gasket		N/A
18-2945	Chrysler/Force/US Marine 12-19183 F50556 F8077 F8186 Johnson/Evinrude Outboard 307552 Mallory 9-60101 9-60102 Mercruiser Stern Drive 12-19183 12-191832 12-191833 12-19183B 12-20260 12-20260B Mercury Marine 12-19183 12-191832 12-191833 12-20260	1	Drain Screw Gasket		N/A

Additional Details:

• For: Alpha One Gen II

Interchanges/Replaces

GLM

• 87511

Mallory

• 9-74206

Mercruiser Stern Drive

• 26-816575A1
• 26-816575A3

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2002	Chrysler/Force/US Marine 26-76868 GLM 85130 Honda Outboard 91252-ZW1-003 Johnson/Evinrude Outboard 0320862 Mallory 9-76202 Mercruiser Stern Drive 26-30550 26-76868 Mercury Marine 26-30550 26-70019 26-73838 26-76868 OMC Stern Drive 320862	1	Oil Seal		N/A
18-2013	GLM 85040 Mallory 9-76108 Mercruiser Stern Drive 26-16977 26-31507 26-79884 802276 Mercury Marine 26-16977 26-20465 26-31507 26-79884 802276	1	Oil Seal		N/A
18-2014	Chrysler/Force/US Marine 26-F694305 GLM 85070 Mallory 9-76109 Mercruiser Stern Drive 26-33144 26-77634 26-89238 Mercury Marine 26-33144 26-77634 26-89238	1	Oil Seal		N/A
18-2076	Chrysler/Force/US Marine 26-12224 26-F697118 GLM 85700 Mallory 9-76101 Mercruiser Stern Drive 26-12224 Mercury Marine 26-12224	1	Oil Seal		N/A
18-2077	Chrysler/Force/US Marine 26-F697555 GLM 85130 Mallory 9-76119 Mercruiser Stern Drive 26-14077 Mercury Marine 26-14077	1	Oil Seal		N/A
18-2564	Chrysler/Force/US Marine 27-430331 GLM 30090 Honda Outboard 19234-ZW1-003 Mallory 9-60020 Mercruiser Stern Drive 27-430331 Mercury Marine 27-43033 27-430331	1	Impeller Gasket		N/A
18-2566	Chrysler/Force/US Marine 27-817277 GLM 30290 Mallory 9-60023 Mercruiser Stern Drive 27-817277 27-8172771 Mercury Marine 27-817277 27-8172771	1	Impeller Gasket		N/A
18-2599	GLM 85590 Mallory 9-43628 Mercruiser Stern Drive 26-816575A2 Mercury Marine 26-816575A2	1	Face Seal and Tool		N/A
18-2944	GLM 85140 Mallory 9-76512 Mercruiser Stern Drive 26-45577 26-455771 26-45577B 26-45577B1	1	Seal Ring Gasket		N/A
18-2945	Chrysler/Force/US Marine 12-19183 F50556 F8077 F8186 Johnson/Evinrude Outboard 307552 Mallory 9-60101 9-60102 Mercruiser Stern Drive 12-19183 12-191832 12-191833 12-19183B 12-20260 12-20260B Mercury Marine 12-19183 12-191832 12-191833 12-20260	1	Drain Screw Gasket		N/A
18-7159	GLM 83440 Mallory 9-76544 Mercruiser Stern Drive 25-31534 25-48451 Mercury Marine 25-31534	1	O-Ring		N/A
18-7168	GLM 80120 Johnson/Evinrude Outboard 202893 Mallory 9-76550 Mercruiser Stern Drive 25-21720 25-26834 25-48171 25-801334436 Mercury Marine 25-20587 25-21720 25-26834 25-48171 25-801334436 OMC Stern Drive 202893 3852033 Volvo Penta 3852033	2	O-Ring		N/A
18-7176	Chrysler/Force/US Marine 25-90011 25-F74305 F694555 F74035 F74305-1 GLM 81390 Mallory 9-76554 Mercruiser Stern Drive 25-896523 25-90011 Mercury Marine 25-896523 25-90011	1	O-Ring		N/A
18-7413	Chrysler/Force/US Marine 25-62702 25-F50342-1 F17510 F50342 GLM 80110 Johnson/Evinrude Outboard 303191 Mercruiser Stern Drive 25-62702 25-627021 Mercury Marine 25-22175 25-62702 Mercury Sport Jet 25-62702 OMC Stern Drive 303191	2	O-Ring		N/A
18-7420	GLM 82110 Mallory 9-76565 Mercruiser Stern Drive 25-21836 Mercury Marine 25-21836 Mercury Race Outboard 25-21836 Mercury Race Sterndrive 25-21836 Mercury Sport Jet 25-21836	2	O-Ring		N/A
18-7440-1	GLM 81170 Johnson/Evinrude Outboard 301967 Mallory 9-76574 Mercruiser Stern Drive 25-36318 Mercury Marine 25-36318	2	O-Ring		N/A
18-2009	GLM 85050 Mallory 9-76105 Mercruiser Stern Drive 26-31249 26-46021 26-89236 26-892361 Mercury Marine 26-25776 26-31249 26-89236	1	Oil Seal		N/A
18-2430	Mallory 9-60105 Mercruiser Stern Drive 26-830749 Mercury Marine 26-830749	1	Drain Screw Gasket		N/A
18-2056	Chrysler/Force/US Marine 26-66302 GLM 85060 Mallory 9-76130 Mercruiser Stern Drive 26-37259 26-89237 26-96503 26-965031 Mercury Marine 26-56394 26-66302	2	Oil Seal

Additional Details:

• For: 225Hp EFI/250Hp EFI (G129222 & Up), 200Hp (T801000 & Up), 200Hp Optimax DFI (G386496 & Up)
• For: 225Hp Optimax DFI (G590000-G960499), 225Hp (D280813-G437999), Models w/ "C-3 Casting"

Interchanges/Replaces

Mallory

• 9-74208

Mercury Marine

• 26-816575A4

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-8347	Chrysler/Force/US Marine 26-816464-1 Mercruiser Stern Drive 26-8164641 Mercury Marine 76384 816464 8164641	1	Shift Shaft Seal		N/A
18-2056	Chrysler/Force/US Marine 26-66302 GLM 85060 Mallory 9-76130 Mercruiser Stern Drive 26-37259 26-89237 26-96503 26-965031 Mercury Marine 26-56394 26-66302	2	Oil Seal		N/A
18-2564	Chrysler/Force/US Marine 27-430331 GLM 30090 Honda Outboard 19234-ZW1-003 Mallory 9-60020 Mercruiser Stern Drive 27-430331 Mercury Marine 27-43033 27-430331	1	Impeller Gasket		N/A
18-2566	Chrysler/Force/US Marine 27-817277 GLM 30290 Mallory 9-60023 Mercruiser Stern Drive 27-817277 27-8172771 Mercury Marine 27-817277 27-8172771	1	Impeller Gasket		N/A
18-7420	GLM 82110 Mallory 9-76565 Mercruiser Stern Drive 25-21836 Mercury Marine 25-21836 Mercury Race Outboard 25-21836 Mercury Race Sterndrive 25-21836 Mercury Sport Jet 25-21836	1	O-Ring		N/A
18-7159	GLM 83440 Mallory 9-76544 Mercruiser Stern Drive 25-31534 25-48451 Mercury Marine 25-31534	1	O-Ring		N/A
18-2077	Chrysler/Force/US Marine 26-F697555 GLM 85130 Mallory 9-76119 Mercruiser Stern Drive 26-14077 Mercury Marine 26-14077	1	Oil Seal		N/A
18-2002	Chrysler/Force/US Marine 26-76868 GLM 85130 Honda Outboard 91252-ZW1-003 Johnson/Evinrude Outboard 0320862 Mallory 9-76202 Mercruiser Stern Drive 26-30550 26-76868 Mercury Marine 26-30550 26-70019 26-73838 26-76868 OMC Stern Drive 320862	1	Oil Seal		N/A
18-0649	Mercury Marine 27-858935	1	Shift Housing Gasket		N/A
18-7117	GLM 82150 Johnson/Evinrude Outboard 303360 Mallory 9-76507 Mercruiser Stern Drive 25-35027 Mercury Marine 25-35027	1	O-Ring		N/A
18-7440-1	GLM 81170 Johnson/Evinrude Outboard 301967 Mallory 9-76574 Mercruiser Stern Drive 25-36318 Mercury Marine 25-36318	2	O-Ring		N/A
18-2945	Chrysler/Force/US Marine 12-19183 F50556 F8077 F8186 Johnson/Evinrude Outboard 307552 Mallory 9-60101 9-60102 Mercruiser Stern Drive 12-19183 12-191832 12-191833 12-19183B 12-20260 12-20260B Mercury Marine 12-19183 12-191832 12-191833 12-20260	2	Drain Screw Gasket		N/A
18-7176	Chrysler/Force/US Marine 25-90011 25-F74305 F694555 F74035 F74305-1 GLM 81390 Mallory 9-76554 Mercruiser Stern Drive 25-896523 25-90011 Mercury Marine 25-896523 25-90011	1	O-Ring		N/A
18-2599	GLM 85590 Mallory 9-43628 Mercruiser Stern Drive 26-816575A2 Mercury Marine 26-816575A2	1	Face Seal and Tool		N/A

Interchanges/Replaces

GLM

• 87513

Mallory

• 9-74209

Mercury Marine

• 26-816575A5

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2013	GLM 85040 Mallory 9-76108 Mercruiser Stern Drive 26-16977 26-31507 26-79884 802276 Mercury Marine 26-16977 26-20465 26-31507 26-79884 802276	1	Oil Seal		N/A
18-2014	Chrysler/Force/US Marine 26-F694305 GLM 85070 Mallory 9-76109 Mercruiser Stern Drive 26-33144 26-77634 26-89238 Mercury Marine 26-33144 26-77634 26-89238	1	Oil Seal		N/A
18-2563	GLM 30290 Honda Outboard 19232-ZW1-003 Mallory 9-60021 Mercury Marine 27-43034 27-430341	1	Impeller Gasket		N/A
18-2564	Chrysler/Force/US Marine 27-430331 GLM 30090 Honda Outboard 19234-ZW1-003 Mallory 9-60020 Mercruiser Stern Drive 27-430331 Mercury Marine 27-43033 27-430331	1	Impeller Gasket		N/A
18-2599	GLM 85590 Mallory 9-43628 Mercruiser Stern Drive 26-816575A2 Mercury Marine 26-816575A2	1	Face Seal and Tool		N/A
18-2945	Chrysler/Force/US Marine 12-19183 F50556 F8077 F8186 Johnson/Evinrude Outboard 307552 Mallory 9-60101 9-60102 Mercruiser Stern Drive 12-19183 12-191832 12-191833 12-19183B 12-20260 12-20260B Mercury Marine 12-19183 12-191832 12-191833 12-20260	2	Drain Screw Gasket		N/A
18-7159	GLM 83440 Mallory 9-76544 Mercruiser Stern Drive 25-31534 25-48451 Mercury Marine 25-31534	1	O-Ring		N/A
18-7176	Chrysler/Force/US Marine 25-90011 25-F74305 F694555 F74035 F74305-1 GLM 81390 Mallory 9-76554 Mercruiser Stern Drive 25-896523 25-90011 Mercury Marine 25-896523 25-90011	1	O-Ring		N/A
18-7420	GLM 82110 Mallory 9-76565 Mercruiser Stern Drive 25-21836 Mercury Marine 25-21836 Mercury Race Outboard 25-21836 Mercury Race Sterndrive 25-21836 Mercury Sport Jet 25-21836	2	O-Ring		N/A
18-7440-1	GLM 81170 Johnson/Evinrude Outboard 301967 Mallory 9-76574 Mercruiser Stern Drive 25-36318 Mercury Marine 25-36318	2	O-Ring		N/A
18-2054	Chrysler/Force/US Marine 26-816464 1 GLM 85581 Honda Outboard 91253-ZW1-003 Mallory 9-76116 Mercruiser Stern Drive 26-8164641 Mercury Marine 26-76384 26-816464 26-8164641	1	Oil Seal		N/A
18-2002	Chrysler/Force/US Marine 26-76868 GLM 85130 Honda Outboard 91252-ZW1-003 Johnson/Evinrude Outboard 0320862 Mallory 9-76202 Mercruiser Stern Drive 26-30550 26-76868 Mercury Marine 26-30550 26-70019 26-73838 26-76868 OMC Stern Drive 320862	1	Oil Seal		N/A
18-2077	Chrysler/Force/US Marine 26-F697555 GLM 85130 Mallory 9-76119 Mercruiser Stern Drive 26-14077 Mercury Marine 26-14077	1	Oil Seal		N/A

Interchanges/Replaces

Mercury Marine

• 47-43026Q06
• 47-43026Q5
• 47-43026T10
• 47-43026T11
• 47-43026T6
• 47-43026T7
• 47-43026T8
• 47-8M0100526

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-3056	Chrysler/Force/US Marine 47-430262 GLM 89630 Honda Outboard 19210-ZW1-303 Mallory 9-45307 Mercruiser Stern Drive 47-430262 47-43026T2 Mercury Marine 43026Q02 47-430261 47-430262 47-430264 47-43026B2 47-43026T2	1	Impeller		N/A
18-3122	Chrysler/Force/US Marine 817276 8172761 GLM 12500 Honda Outboard 19231-ZW1-003 Mallory 9-43413 Mercruiser Stern Drive 817276 Mercury Marine 817276 8172761 8172763	1	Impeller Plate		N/A
18-3293	Chrysler/Force/US Marine 28-43037 GLM 11071 Mallory 9-43702 9-43720 Mercruiser Stern Drive 28-43037 Mercury Marine 28-43037 28-8M0032833	1	Impeller Key		N/A
18-7420	GLM 82110 Mallory 9-76565 Mercruiser Stern Drive 25-21836 Mercury Marine 25-21836 Mercury Race Outboard 25-21836 Mercury Race Sterndrive 25-21836 Mercury Sport Jet 25-21836	2	O-Ring		N/A
18-2944	GLM 85140 Mallory 9-76512 Mercruiser Stern Drive 26-45577 26-455771 26-45577B 26-45577B1	1	Seal Ring Gasket		N/A
18-2566	Chrysler/Force/US Marine 27-817277 GLM 30290 Mallory 9-60023 Mercruiser Stern Drive 27-817277 27-8172771 Mercury Marine 27-817277 27-8172771	1	Impeller Gasket		N/A
18-2564	Chrysler/Force/US Marine 27-430331 GLM 30090 Honda Outboard 19234-ZW1-003 Mallory 9-60020 Mercruiser Stern Drive 27-430331 Mercury Marine 27-43033 27-430331	1	Impeller Gasket		N/A
18-2599	GLM 85590 Mallory 9-43628 Mercruiser Stern Drive 26-816575A2 Mercury Marine 26-816575A2	1	Face Seal and Tool		N/A
18-2430	Mallory 9-60105 Mercruiser Stern Drive 26-830749 Mercury Marine 26-830749	2	Drain Screw Gasket		N/A

Interchanges/Replaces

Mercury Marine

• 46-8M0077246
• 817275A08

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-3056	Chrysler/Force/US Marine 47-430262 GLM 89630 Honda Outboard 19210-ZW1-303 Mallory 9-45307 Mercruiser Stern Drive 47-430262 47-43026T2 Mercury Marine 43026Q02 47-430261 47-430262 47-430264 47-43026B2 47-43026T2	1	Impeller		N/A
18-3122	Chrysler/Force/US Marine 817276 8172761 GLM 12500 Honda Outboard 19231-ZW1-003 Mallory 9-43413 Mercruiser Stern Drive 817276 Mercury Marine 817276 8172761 8172763	1	Impeller Plate		N/A
18-2566	Chrysler/Force/US Marine 27-817277 GLM 30290 Mallory 9-60023 Mercruiser Stern Drive 27-817277 27-8172771 Mercury Marine 27-817277 27-8172771	1	Impeller Gasket		N/A
18-2564	Chrysler/Force/US Marine 27-430331 GLM 30090 Honda Outboard 19234-ZW1-003 Mallory 9-60020 Mercruiser Stern Drive 27-430331 Mercury Marine 27-43033 27-430331	1	Impeller Gasket		N/A
18-1730	Chrysler/Force/US Marine 43585 Mercruiser Stern Drive 43585 Mercury Marine 43585	1	Coupling		N/A
18-2599	GLM 85590 Mallory 9-43628 Mercruiser Stern Drive 26-816575A2 Mercury Marine 26-816575A2	1	Face Seal and Tool		N/A
18-3293	Chrysler/Force/US Marine 28-43037 GLM 11071 Mallory 9-43702 9-43720 Mercruiser Stern Drive 28-43037 Mercury Marine 28-43037 28-8M0032833	1	Impeller Key		N/A
NSS	Mercury Marine 10-4001128	4	Bolt	No Image	N/A
NSS	Mercury Marine 817275A09	1	Housing	No Image	N/A