Check Valve 21-64871
This product is not being produced anymore however may still be available through other dealers.
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- This is an OEM part manufactured by Mercury Marine
- Flat rate shipping starting at $3.95
- 30 day return policy
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13 Product Reviews
- Repair Difficulty
- Repair Time
- 30 to 60 mins
Problem fixed: Oil getting into carbs
Replace 2psi check valve in oil line 95 merc mixed half tank fuel 50:1 run engine oil rich make sure all air out of oil line