Mercruiser Forward & Reverse Gears

Sierra 18-2354 Carrier Seal for Mercury, Mercruiser Sierra high-quality engine parts are designed to meet OEM specifications. Interchangeable with: GLM 12341 Mallory 9-72642 Mercruiser Stern...

Mercury - Mercruiser 8M0214948 Carrier Assy Genuine OEM Mercury/Mercruiser replacement engine part. Supersedes: 807929A-1 Special Order  

Mercury 8M0173229 Automatic Transmission Fluid Engineered for harsh marine environments. Specifically formulated and recommended for use in Mercury Outboards, MerCruiser Inboards, and Tow Sport transmissions requiring DexronIII fluid. Meets...

Mercury 8M0173230 Automatic Transmission Fluid - 1 Gal Engineered for harsh marine environments. Specifically formulated and recommended for use in Mercury Outboards, MerCruiser Inboards, and Tow Sport transmissions requiring DexronIII fluid...

Gear Repair Kit - Special Order est. 10 Days

Sierra 18-2407 Gear Set for Mercruiser MR/Alpha/Gen 2 Lower Gear Housings Sierra replacement gear set for MR/Alpha One/Gen II engines. Set Contains: (1) 18-1117 Pinion Bearing (1) 18-1143 Tapered Roller Bearing (1) 18-1155 Ball Bearing (1)...

Mercruiser 43-828073A-1 Reverse Gear Kit Genuine OEM Mercury-Mercruiser part. Fits: Alpha I Gen II 21 Teeth Application: Alpha One (Gen II) 1998 & Up - s/n 0L100040 & up Alpha One (Gen II) 1996-1997 - s/n 0F680000 thru...

Mercruiser 43-878087A-2 Forward Gear Set Genuine OEM Mercury-Mercruiser part. Fits: Alpha One Gen II (except 2.00 & 2.40 ratio) (s/n 0F680000 and above) 13‑21 Teeth  Standard Rotation (RH) Special Order Item.

Mercruiser 43-96084A-7 Forward Gear Set Genuine OEM Mercruiser part. Application: R/MR/Alpha One (Sterndrive) 1983-1990 (s/n 6225577 thru 0F386995) R/MR/Alpha One (Transom Assembly) 1983-1990 (s/n 6216687 thru 0F386995) Special Order Item.

Mercury - Mercruiser 1623-8951A37 Gc Alpha -Basic Genuine OEM Mercury-Mercruiser part. Special Order Item

Mercury - Mercruiser 43-84808T Forward Gear

Mercury - Mercruiser 43-84810T Reverse Gear

Mercury - Mercruiser 43-878087A-4 Gear Set-21T Genuine OEM Mercury-Mercruiser part. Special Order Item.

Mercury - Mercruiser 53-27290 Retain Ring

Mercury - Mercruiser 818763A10 Carrier Assy-Brg Genuine OEM Mercury-Mercruiser part. Special Order Item

Mercury-Mercruiser 32520 Drive Shaft/Bell Housing Reverse Hook For drive shaft housing & bell housing assembly groups on Mercruiser stern drive engines. Fits: Mercruiser 120/140 (1967-1969 2062141 Thru 2791956) Mercruiser 160 (1967-1969 2065190...

Gear Set - Special Order est. 10 Days

Sierra Clutch Cross Pin Spring Special Order est. 10 Days For use on Mercury/Mariner Outboard Engines 70, 75, 80, 90, (serial # A996142 & later), 100, 115, 125, 4 cyl. (serial # B209468 & later), Mercruiser - MR/Alpha  I/O, 1MC-1/R/MR/Alpha...

Sierra 18-2368 Lower Gearcase Seal Sierra replacement lower gearcase seal for Mercruiser Alpha/Gen II 1996-97 Interchangeable with: Mercruiser Stern Drive 43-803071T1 Application: Mercruiser Stern Drive Alpha One Gen II 1996-1997 s/n...

Sierra 18-2405 Mercruiser Gear Repair Kit for MR and Alpha 1 Drives Sierra high-quality engine parts are designed to meet OEM specifications.  Kit Includes: (1) 18-1117 Pinion Bearing (1) 18-1143 Tapered Roller Bearing (1) 18-1155 Ball...