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O Ring 0307450

Satisfaction rating 5 out of 5 (3 Ratings)
5+ IN STOCK Ships Immediately
  • Guaranteed fitment for 7 different models
  • This is an OEM part manufactured by Johnson/Evinrude, OMC
  • Flat rate shipping starting at $4.95
  • 30 day return policy

Product Description

Bombardier factory part. Search for more factory parts & parts diagrams.

Product Questions

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3 Product Reviews

Omc cobra v6

Repair Difficulty
Repair Time
Less than 30 mins
Very good communication . Thank you.

Problem fixed: Overtightened and split the do not remove plug

I overtightened the do not remove plug and split it. Crowley marine was the only place I could find a new one and the o ring that goes with it. It took a while to come from USA to Australia but still pretty good during covid. All the parts were spot on and got me going again, communication from Crowley marine about the order was fantastic.

OMC Ford Cobra 1989

Repair Difficulty
Repair Time
30 to 60 mins
I found them online as I live in Australia and was very pleased find parts for my 1989 OMC that are not available here. So impressed when they arrived by fedex in a week.

Problem fixed: Outdrive Side "do not remove' plug leaking

In my case the plug was cracked and leaking . I was able to undo and remove the backing plate with out taking the leg off. So I suspect the cracked plug was because it was not aligned properly last time. I found a long bolt and fitted it to the plate giving me enough length to glue it in place. To align the centre it fitted the new plug without the rings. Then tapped the bolt so as to make the plug a snug fit. A few drops of super glue, fed it in pushed in the plug and held it in place for as long as I could. Very gentley removed the bolt and the base stayed in place, refitted up the rings, a little sealer and original bolt and presto all sealed. Restuck the cobra logo with the same sealer.


Product Fitment Grid

This guide is to be used as a reference only. You must verify fitment using your model or serial number.

BRAND MODEL 1994 1995 1996 1997 1998
OMC Stern Drive 3 x x x x x
OMC Stern Drive 4.3 x x x x x
OMC Stern Drive 5 x x x - x
OMC Stern Drive 5.7 x - x x x
OMC Stern Drive 5.8 x x x - -
OMC Stern Drive 7.4 x x x x x
OMC Stern Drive 8.2 - - - - x

Customers Also purchased

Supersession Chain

Name SKU Superceding SKU
"O"-Ring (Plug) 3852073 0307450

Aftermarket Product Interchange

Name SKU Price Brand
O-Ring 18-7102 $1.29 Sierra Marine