DOWNLOAD THE APP
Customer Services
Copyright © 2025 Desertcart Holdings Limited
DOWNLOAD THE APP
⚙️ Seal the deal on your gearcase with confidence!
The S-34 Gearcase Pressure Tester by Stevens Instrument Company is a compact, durable tool designed for precise pressure testing of outboard and sterndrive gearcases. Featuring a standard 3/8-16 vent plug thread and the ability to hold pressure for over 24 hours, it ensures reliable leak detection during maintenance or repairs. Lightweight and highly rated, it’s the go-to tester for DIY professionals aiming to maintain peak gearcase performance.
| ASIN | B005GY9X7Q |
| Best Sellers Rank | #372,060 in Automotive ( See Top 100 in Automotive ) #116 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
1 week ago
1 month ago