Alpha one gen 1 gear oil capacity

Q: How much gear oil does a lower unit take?

STEPLower Unit Oil Needed by Model

Description

Mercruiser Alpha Gear Oil Change Kit

Table of Contents Show

Description
How much gear oil does a lower unit take?
What type of oil goes in a Mercruiser lower unit?

2L Quicksilver Hi-Performance Gear Lube

2 x Drain Screw Washer Seals

Alpha One GEN – II 1991 & UP

High Performance Gear Lube for use in stern drive and outboard gear housings

For outboards 75 HP and up and all sterndrives Mercury or Quicksilver SAE 90 High Performance (Extreme) Gear Lube is recommended

This gear lube capacity chart is limited to recent models and has been developed to aid in determining how much gear lube to have on hand when servicing a particular gear housing. Changing and servicing of gearlube should always be performed in accordance with techniques and procedures as outlined in the appropriate service or owner manuals. The quantities shown here are to be regarded as reference only. Any variation from the quantities shown may indicate an incorrect model selection, the wrong service technique or a more serious problem. Contact your local dealer prior to running if this should occur.

BrandModelCycleModel DescriptionOz./Qts.mL.Mercury/Mariner75, 902 cycle3 cylinder22.5665Mercury/Mariner100,115,1252 cycle4 cylinder22.5665Mercury/Mariner1152 cycle3 cylinder Optimax22.5665Mercury/Mariner135,1502 cycle2.0L22.5665Mercury/Mariner150,175,2002 cycle2.5L Carb/EFI/Optimax22.5665Mercury/Mariner200,225,2502 cycle3.0L Carb/EFI/Optimax27.0798Force752 cycle12.0355Force90,1202 cycle22.5655Mercury/Mariner75-90Four StrokeS/N 1B366822 & below22.5665Mercury/Mariner75-90Four StrokeS/N 18366823 & above24.0710Mercury/Mariner115Four Stroke24.0710Mercury/Mariner135/150/175Four StrokeVerado (RH rotation)32.8970Mercury/Mariner150 EFIFour StrokeRH rotation26.4780Mercury/Mariner200Four StrokeVerado (RH rotation)32.8970Mercury/Mariner225 EFIFour StrokeStandard gearcase39.01.15LMercury/Mariner225/250/275/300 VeradoFour Stroke4.8 Diameter32.8970Mercury/Mariner225/250/275/300 VeradoFour Stroke5.44 Diameter Sportmaster lower20.9620Mercury/Mariner225/250/275/300 VeradoFour Stroke5.44 Diameter HD17.2510Mercury/Mariner225/250/275/300 VeradoFour Stroke5.44 non-HD28.7850MerCruiserAlpha One Gen II4 cyclewithout Gear lube monitor1.22 US Quarts1.16LMerCruiserAlpha One Gen II4 cyclewith Round Gear lube monitor2.0 US Quarts1.9LMerCruiserAlpha One Gen II4 cyclewith Rectangular Gear lube Monitor1.75 US Quarts1.66LMerCruiserBravo One4 cyclewithout Gear lube monitor2.0 US1.9LMerCruiserBravo One4 cyclewith Round Gear lube monitor3.25 US Quarts3.07LMerCruiserBravo One4 cyclewith Rectangular Gear lube Monitor2.75 US Quarts2.6LMerCruiserBravo Two4 cyclewithout Gear lube monitor2.5 US Quarts2.4LMerCruiserBravo Two4 cyclewith Round Gear lube monitor3.75 US Quarts3.55LMerCruiserBravo Two4 cyclewith Rectangular Gear lube Monitor3.25 US Quarts3.07LMerCruiserBravo Three4 cyclewithout Gear lube monitor2.0 US Quarts1.9LMerCruiserBravo Three4 cyclewith Rectangular Gear lube Monitor3.0 US Quarts2.84LMerCruiserBlackhawk4 cyclewithout Gear lube monitor1.75 US Quarts1.66L

Shop for all Mercury Gear Lube at discounted prices here

Gear Case Fill Screw/Seal Kits can be purchased HERE

wildman

Seaman Apprentice

JoinedDec 14, 2002Messages32

Jun 24, 2003

HI: I need to know the capacity on an Alpha I, how much oil is that thing supposed to hold?? When changing the oil is it ok to fill from vent hole in the top or do you have to use the hole in the bottom... Thanks in advance WM

llerrad

Petty Officer 2nd Class

JoinedJan 21, 2003Messages172

Jun 24, 2003

Re: Alpha One oil change and Capacity

Pick up oil kit which will give you a connector hose and adapt to oil bottle then after you have drained the oil attach and fill from the bottom unitl full to the top vent hole.

Bob_VT

Moderator & Unofficial iBoats Historian

Staff member

JoinedMay 19, 2001Messages25,915

Jun 24, 2003

Re: Alpha One oil change and Capacity

About 1 quart. I would fill from the bottom like said previosly, buy the pump and the connector tube....best way to go. Bob

brianwhart

Cadet

JoinedMay 19, 2003Messages27

Jun 24, 2003

Re: Alpha One oil change and Capacity

It depends on whether you have the reservoir. Mine holds 54 ozs including the reservoir. You always want to fill from the bottom hole until comes out the top hole. Then plug the top hole and refill the reservoir. That oil kit mentioned in the above posts is definitely the way to go.

wildman

Seaman Apprentice

JoinedDec 14, 2002Messages32

Jun 24, 2003

Re: Alpha One oil change and Capacity

So I guess when I bought 5 quarts, that was a little way too much..... I figured that thing held at least 4 quarts.... Shoot.... Anyone need to buy some Mer High Perf gear lube???? Thanks for the help folks! WM

dragracer

Petty Officer 3rd Class

JoinedJun 22, 2003Messages82

Jun 24, 2003

Re: Alpha One oil change and Capacity

LOL...don't think it will hold 5 quarts. Yep, the bottle pump adapter makes it a real easy job. Just pump it in from the bottom until it's full. I was told mine would hold about a quart. I was very surprised that it held almost two quarts. What and where is this "resevoir"? Is it visable on the outside or is it internal? Or does the GenII just hold more than the GenI outdrives?

brianwhart

Cadet

JoinedMay 19, 2003Messages27

Jun 24, 2003

Re: Alpha One oil change and Capacity

I'm not sure when they started putting the drive oil reservoir on them. I have a 97 4.3L with an Alpha one, which has a translucent drive oil reservoir right on top of the engine with a hose running to your lower unit so that you can monitor your drive oil level and quality.

dragracer

Petty Officer 3rd Class

JoinedJun 22, 2003Messages82

Jun 24, 2003

Re: Alpha One oil change and Capacity

Hmmm...Ok thanks......don't guess I have one. No hoses running to lower unit that I have seen. Still wondering why mine took almost two quarts(over 1.5 quarts). Weird.

Doug Durako

Chief Petty Officer

JoinedNov 17, 2002Messages519

Jun 24, 2003

Re: Alpha One oil change and Capacity

Wildman---I'll take some of that oil. I live in Bloomington, IL. What's your web address? Dragracer---be carfule not to overfill--was it coming out the vent hole near the top of the upper unit? I stop pumping when it just starts coming out and then fill the reservoir from the topside/inside/front of engine compartment.

Baketech

Cadet

JoinedJun 15, 2003Messages15

Jun 24, 2003

Re: Alpha One oil change and Capacity

Did my first gear lube change last weekend on my Alpha. My manual said that it would take 2 quarts. (64oz) It ended up taking around 56oz to to top line on the monitor. I am sure that I drained everything completely, so I am not sure where the discrepancy is? Anyway, it has maintained its level after about 8 hours of running time. Things I learned: Always fill from the bottom. I purchased the little plastic pump from my Merc dealer for $9.75...and then bumped into the exact same thing at Walmart in a generic package for about $2 less.... :rolleyes: Things I still want to know: Whats the trick to quickly getting the pump unscrewed and the plug back in without making a hell of a mess....

Doug Durako

Chief Petty Officer

JoinedNov 17, 2002Messages519

Jun 24, 2003

Re: Alpha One oil change and Capacity

Bake---always a little mess with this stuff. If you put the top vent screw in and the resevoir cap back on after full, then remove the pump from the bottom, not as much lube comes out.

How much gear oil does a lower unit take?

STEP

Lower Unit Oil Needed by Model
Model	Approximate Fluid Ounces Required
9.8 (2-stroke & 4-stroke)	10.8 fl oz
9.9 (2-stroke)	12.5 fl oz
9.9A (4-stroke)	6.8 fl oz

LOWER UNIT OIL CHANGE | TOHATSU North America - TOHATSUtohatsu.com › marine › tech_info › oil_changenull

What type of oil goes in a Mercruiser lower unit?

Quicksilver 85W-90 Extreme Performance Gear Lube.

alpha gen gear oil capacity

Alpha one gen 1 gear oil capacity

Description

wildman

Seaman Apprentice

llerrad

Petty Officer 2nd Class

Bob_VT

Moderator & Unofficial iBoats Historian

brianwhart

Cadet

wildman

Seaman Apprentice

dragracer

Petty Officer 3rd Class

brianwhart

Cadet

dragracer

Petty Officer 3rd Class

Doug Durako

Chief Petty Officer

Baketech

Cadet

Doug Durako

Chief Petty Officer

How much gear oil does a lower unit take?

What type of oil goes in a Mercruiser lower unit?

Related Posts

Advertising

LATEST NEWS

Advertising

Populer

Advertising

About

Legal

Help

Social