


Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Iceland.
🛠️ Seal the deal on your gearcase maintenance with precision pressure testing!
The S-34 Gearcase Pressure Tester by Stevens Instrument Company is a compact, lightweight tool designed for accurate pressure testing of outboard and sterndrive gearcases. Featuring a standard 3/8-16 vent plug thread, it helps detect leaks during lubrication or after repairs, ensuring your drives stay sealed and water-free. Trusted by DIYers and professionals alike, it offers reliable performance backed by strong customer reviews.
| ASIN | B005GY9X7Q |
| Best Sellers Rank | #1,232,917 in Automotive ( See Top 100 in Automotive ) #203 in Pressure & Vacuum Testers |
| Brand | Stevens Instrument Company |
| Customer Reviews | 4.5 4.5 out of 5 stars (61) |
| Date First Available | August 11, 2011 |
| Item Weight | 2.3 pounds |
| Item model number | S-34 |
| Manufacturer | Stevens Instrument Company |
| Manufacturer Part Number | S-34 |
| National Stock Number | 4910-01-132-9147 |
| OEM Part Number | STVS34 |
| Product Dimensions | 18.25 x 6.75 x 5 inches |
J**D
The right tool for pressure testing outdrives
Replaced O rings in two Bravo One sterndrives this spring and was able to use this tester to pump the required air into the drives to pressure test them. Held pressure at 15 pounds for 24 hours. Drives sealed well and had no water in them when oil was drained for the season. Worked perfectly. Good investment for DIY outdrive maintenance.
T**N
Great
Great
A**R
Five Stars
Works great. Use it a few times a week
S**E
Worth the money
Solid well built product , holds up well to 8 hr workdays at a pro Boat repair shop like Shadow Mountain Marine
Y**R
Works great
Great product works great
A**R
Worth the money
This pressure tester worked great on my Volvo out drive.
S**R
Perfect
Does the job
C**G
Five Stars
Worked great
Trustpilot
2 months ago
2 weeks ago