Additional Details:

• Material: Zinc
• For: Cobra Lower Unit (1987) 2.5, 3.0, 4.3, 5.0, 5.7

Interchanges/Replaces

GLM

• 12773

OMC Stern Drive

• 983494

Key Features:

• O.E.#'s 43-803615T2 + 52-859340T + 43-828175A1 combine make set

Additional Details:

• Fits: V-150 (XR6, Mag III)(1997 & Up), V-150 EFI (1997 & Up), V-150 DFI (1998 & Up), V-175 (1997 & Up)
• Fits: V-175 EFI (1997 & Up), V-175 DFI (2001 & Up), V-200 (1997 & Up), V-200 EFI 2.5L (1997 & Up)
• Ratio: 1.87:1

Interchanges/Replaces

Mallory

• 9-73410
• 9-73450

Mercury Marine

• 43-803615T2
• 43-828175A1
• 52-859340T

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-1564	Mallory 9-73451 Mercury Marine 43-803615T1 43-803615T2	1	Gear Set--Forward		N/A
18-1565	Mallory 9-73454 Mercury Marine 52-828288 52-854735T 52-859340T	1	Clutch		N/A
18-1566	Mallory 9-73452 Mercury Marine 43-828175A1	1	Reverse Gear		N/A

Key Features:

• Forward, Pinion, Reverse, and Clutch for 4 cyl.
• 2.07:1 Ratio

Additional Details:

• Fits: 100 w/ 6 JAW reverse clutch 1988-98, 115 w/ 6 JAW 1989-98, 125 w/ 6 JAW 1994-98

Interchanges/Replaces

Mallory

• 9-73420
• 9-73431

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-1560	Chrysler/Force/US Marine 43-850036 Mallory 9-73432 Mercury Marine 43-850036 43-850036T	1	Reverse Gear		N/A
18-1562	Chrysler/Force/US Marine 52-850048 Mercury Marine 52-850048 52-850048T	1	Clutch		N/A
NSS	Mercury Marine 43-881260A3	1	Forward Gear	No Image	N/A
NSS	Mercury Marine 15-44491A1	1	Shim Set	No Image	N/A
NSS	Mercury Marine 43-19672T	1	Pinion Gear	No Image	N/A
NSS	Mercury Marine 15-44492A1	1	Shim Set	No Image	N/A
18-3719	Chrysler/Force/US Marine 11-35921 11-826375 11-F694188 GLM 11190 Johnson/Evinrude Outboard 314730 Mallory 9-78103 Mercruiser Stern Drive 11-35921 Mercury Marine 11-35921 11-47411 11-826375 OMC Stern Drive 314730	1	Pinion Nut		N/A

Additional Details:

• Length: 3"
• Width: 3.780"

Interchanges/Replaces

Mallory

• 9-42800

Mercruiser Stern Drive

• 60930

Additional Details:

• For: Mercruiser Vazer

Interchanges/Replaces

Chrysler/Force/US Marine

• 31-30894A1

GLM

• 21820

Honda Outboard

• 91051-ZW1-003

Mallory

• 9-75118

Mercruiser Stern Drive

• 31-30894A1

Mercury Marine

• 31-30894A1

Additional Details:

• Drive Gear: 17 Teeth
• Driven Gear: 19 Teeth
• Ratio: 1.84:1
• For: V-6 & 470/485 (4 cyl. etc.) and Gen II (s/n 0K999999 & Below)

Interchanges/Replaces

GLM

• 11230

Mercruiser Stern Drive

• 43-75324A2
• 43-75325A3

Additional Details:

• Ratio: 1.87:1

Interchanges/Replaces

Mallory

• 9-73451

Mercury Marine

• 43-803615T1
• 43-803615T2

Key Features:

• Link Belt
• Greasable
• Fits all OMC Cobra & King Cobra drives

Additional Details:

• Fits: Mercruiser- 120hp/140hp (2791957-6225576)(With Gimbal Trim Sender), 165hp (2763442 & Up)
• Fits: 225S (3856268-4200499), 228hp (4782330 & Up)
• Fits: 233hp (4200500 & Up), 250hp (4791300 & Up)

Interchanges/Replaces

GLM

• 21900

Mallory

• 9-72410

Mercruiser Stern Drive

• 30-60794A2
• 30-60794A4
• 30-60794B4
• 30-879194A02

OMC Stern Drive

• 3853807
• 983937

Volvo Penta

• 21752712
• 3853807

Key Features:

• Greasable

Additional Details:

• Fits: All Bravos, Alpha One Gen II (1998 & Up)

Interchanges/Replaces

Mallory

• 9-72412

Mercruiser Stern Drive

• 30-862540A04
• 30-862540A3
• 30-862540T1
• 30-879194A01

Key Features:

• Non Greasable

Additional Details:

• Fits: MC-I, R, MR & Alpha (1974-1997), Gen II (1991-1997), Bravo I/II/III (1988-1995)

Interchanges/Replaces

Mercruiser Stern Drive

• 30-60794A2
• 30-60794A4
• 30-60794B4
• 30-879194A02

Key Features:

• Greasable
• Link-Belt

Interchanges/Replaces

GLM

• 21850

Mercruiser Stern Drive

• 30-36056
• 30-36418
• 36147