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Description
OMC 0908614 908614 Crankshaft 3.0L 181cid 140hp 4cyl N393775 1972-1989 StringerItem Details Used from 1972 1989 on virtually all OMC & Mercruiser 3. 0L 140hp power plants. (both companies used the same GM blocks, but OMC used bolts rather than studs at the end of the crankshaft to hold the couplers on until 1986 in the cobra applications regardless the crankshaft stayed the same through all of this, but had 3 different commonly stamped part numbers which are all interchangable) This is for engines with a 2 piece rear main seal.
Item Details
- Used from 1972-1989 on virtually all OMC & Mercruiser 3.0L 140hp power plants. (both companies used the same GM blocks, but OMC used bolts rather than studs at the end of the crankshaft to hold the couplers on until 1986 in the cobra applications... regardless the crankshaft stayed the same through all of this, but had 3 different commonly stamped part numbers which are all interchangable)
- This is for engines with a 2-piece rear main seal....which is what they used before 1990...
- No studs on this (which you shouldn't need unless it's a cobra application)
- OMC Part Number 0908614 / 908614
- GM part # N398775 / 398775 (Stamped)
- Equivalent GM Part numbers (Other common Stamps
- N9341352 / 9341352
- N398776 / 398776
- N393775 / 393775
- Sometimes looks like 393776
- Yours should looks just like this.
- Engine turned over by hand freely before removed.
- This crankshaft may need some additional polishing, but for the most part it seems okay. The engine turned over freely by hand before disassembly.
- If you are unsure if this will work for you, just ask.
- Purchase with confidence!
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- Final sale items are not eligible for returns or exchanges.
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★★★★★ 1
Don't Waste Your Money
Bought this 2 year protection plan and come to find out it doesn't even cover simple stuff like our mattress losing it's shape and stability. A mattress should last longer than 1 1/2 years before it starts caving in and the foam and springs start to give. So disappointed. Asurion Protection is a waste of money.
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Reviewed in the United States on June 7, 2026
★★★★★ 5
They got your back
Hey its worth every penny to get a warranty from this company ya never know what tomorrow brings so yeah
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Reviewed in the United States on May 11, 2026
★★★★★ 5
Very Pleaded!
They covered my purchase as advertised.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
love my new chairs
best darn chairs for big people (450lbs)..iv ever purchased.the fabric is way thicker then the cheaper chairs thats out there.....only thing i have a slight concern about is the connectors ((made of plastic)) which hold the frameing in place....that could lead to a problem....thats what usually fails on most chairs iv purchased in the past...so i bought a 2 year protection plan just for that reason.but if i was to give it a rateing i would give it a 9 out of 10...one more thing if your a tall person its alot easerier to get up out of the chair because it sits higher then cheaper versions.
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Reviewed in the United States on March 12, 2026
★★★★★ 4
Get rid of the automation telephone go to a human being
I wish they would make it just a little bit easier to retrieve your gift card than having to search for it After trying to speak to a human Which was unsuccessful I managed to navigate my way through their AI and get them I managed to navigate my way through their AI and get them to retransmit my gift card. All besides that things work out good got my refund Thank you
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Reviewed in the United States on November 11, 2025
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