SKU: AMT0195

Gearcase Pressure/Vacuum Tester

Name: Gearcase Pressure/Vacuum Tester
Brand: Marine Tech Tools
SKU: AMT0195
Price: 172.37 USD
Availability: InStock

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$172.37

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Product Overview

Stop water intrusion before it destroys your lower unit. This professional-grade combination tester allows you to pull and hold both vacuum and pressure with a single tool.

Engineering & Design

2-in-1 Design: Flip the valve to switch between pressure and vacuum testing.
Universal Fit: Includes custom brass adapters for Yamaha, Suzuki, Tohatsu, Mercury, Johnson, Evinrude and Volvo Penta.
Quick Disconnects: Brass swivel fittings make installation fast and prevent hose twisting.
Superior to OEM and aftermarket: 90890-06756, CDI 551-34PV, S-34, V-34.
The Inner Seal (Pressure Test): The lip faces inward. Its job is to keep the gear oil INSIDE the lower unit. You test this by pumping positive pressure into the gearcase and watching the gauge to see if it holds.
The Outer Seal (Vacuum Test): The lip faces outward. Its job is to keep lake/ocean water OUTSIDE the lower unit. You test this by pulling a vacuum (negative pressure) and ensuring it holds.

Technical Specifications & Fitment

Dual Function: Dual-Action (Flip switch for Pressure or Vacuum)
PSI Gauge: High-visibility, highly accurate dial for slow leak detection
Connection Type: Brass swivel quick-disconnect
Universal Adapters: Mercury, Mariner, Johnson, Evinrude, Force, Volvo
Comparable OEM and aftermarket part numbers: 90890-06756, CDI 551-34PV, S-34, V-34

5 stars: 7 (88%)
4 stars: 0 (0%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 1 (13%)

This worked well to pressure and vacuum test my Volvo DPS-A drive. The adapter fittings are high quality and worked well. It takes quite a bit of pumping to achieve the required pressure, but I'd recommend this tool.

Marine Tech tools are always

Marine Tech tools are always the best choice. The quality is far better than any others I have used. This worked exactly as advertised.

Quality tool, great service!

Quality tool, great service!

This is a decent brake ...

This is a decent brake bleeder at best. It does not move enough volume to be an effective Gear Case Pressure Tester. We have some more elaborate brake bleeders as well as pressure/vacuum tools. I see this product being returned due to a lack of performance in the advertised task. That said we are a large boat service center and have always been satisfied with Marine Tech Tools. We use a wide variety of their products and couldn't be more satisfied.

I can see this being too slow for a shop that does this test often. It works but it takes some work too.

Great pressure / vacuum pump, ...

Great pressure / vacuum pump, comes with quick disconnect fitting, perfect for my bravo 3.

Always happy with the service and products purchased.

Great service as always! The tester appears to be good quality product, Kit came with all fitting and really nice case. Can't wait to use it.

quality tester at good price

this is a rebranded product. Appears to be well made quality tester. adapters and tubing make it easy to attach and use. worked well on the outboards tested so far. good buy at current price comparing to others available.

Extremely well built

Easy to setup and worked extremely well. No complaints.