Mercruiser 140 Starter

[zigbat]

I need to replace the starter in a 140hp Mercruiser will the later model 3.0 135hp starters fit?

 

[Scott Danforth]

there are 2 styles of starters and two flywheel sizes.

originally the starters were direct drive, today they are PMGR (Permanent Magnet Gear Reduction).

most importantly, you need to order a starter for your flywheel ring gear size, 153 tooth or 168 tooth.

 

[alldodge]

The 140 and "early" model 3.0 use the straight across bolt pattern starts 50-8M0090697
The newer 3.0 uses the staggered bolt pattern starter and is above serial number 0L097000. Don't know the year but would be after 1997

 

[Scott Danforth]

straight across pattern is for the 153 tooth flywheel and the staggered is for the 168 tooth flywheel.

 

[Bondo]

I need to replace the starter in a 140hp Mercruiser will the later model 3.0 135hp starters fit?

Ayuh,..... There's only 2 Chevy starter bolt patterns,.... Straight across, 'n Staggered,....

Which ever ya find, ya Gotta replace with the same pattern,....

 

[zigbat]

1972 Seaswirl Marlin Cuddy...
stop laughing...