Crowley Marine: serving boaters for over 40 years Crowley Marine: serving boaters for over 40 years
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Thermostat Seal 0334742

Satisfaction rating 5 out of 5 (8 Ratings)
Save $1.76 (15%)
ONLY 1 REMAINING Ships Immediately

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  • This is an OEM part manufactured by Johnson/Evinrude, OMC
  • Flat rate shipping starting at $3.95
  • 30 day return policy

Product Description

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

Product Questions

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8 Product Reviews


I have done business with you in the past. Your service is always the best.

Johnson 50 2 stroke

Repair Difficulty
Repair Time
More than 4 hours

Problem fixed: Remove power head, replace crank seals

Straight forward save for seized bolt on power head.

Items were shipped promptly if in stock. Reasonable prices.



Excellent, every time I use you guys.

Repair Difficulty
Repair Time
1 to 2 hours
Excellent- cheaper with freight than buying in Australia.

Problem fixed: Fuel coming from fuel pump, motor not been used for 5 years so it needed a major service.

We originally found your site as we wanted to replace the tilt assist cylinder. We later found a local to re-gas & service the cylinder as they are only a strut it is now working great! Replaced fuel/oil pump, serviced carbi's, changed leg oil and replaced water pump. We now know we have a very reliable motor. Crowley Marine made it doable due to fantastic prices. Thanks

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Aftermarket Product Interchange

Name SKU Price Brand
Thermostat Seal 18-1734 $8.47 Sierra Marine

Flat $3.95 Shipping on ALL parts orders

We offer shipping flat $3.95 shipping on ALL parts orders. (Complete Engines, Lower Units and Sterndrives excluded). In addition orders over $89 have reduced cost express shipping available in checkout.

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