Product Description
4 Stroke Digital Leak Down Tester is available now from Knobtown Cycle, your Kansas City motorcycle parts specialists.
Key Features
- Accurately displays the total percentage of leakage past the rings, head gasket, intake and exhaust valves
- Speeds up troubleshooting and helps to isolate bad components
- Precision digital display provides accurate, easy to read results
- Easy to use precision pressure regulator built into body of tool
- Rugged rubber boot protects digital gauges
- Tests at 80, psi cylinder pressure. Requires 90 PSI air source.
- Includes 1/4″ male industrial quick connector
- Meets FAA leak down test specifications for cylinders below 5.00 in. (127 mm) bore diameter
- Hose and adapter fits 10 mm, 12 mm, 14 mm spark plug threads
- Includes convenient molded tray and instructions
Product Specifications
- Part Number: 57-8740
- Brand: Motion Pro
- Weight: 0.83 lbs
Available at Knobtown Cycle
Order online or stop by our Kansas City location. Kansas City riders since 2004!
Part Locations
| Location |
Available |
| Ashley (IN) |
4 |
| Elizabethtown (PA) |
0 |
| Boise (ID) |
3 |
| Midway (GA) |
2 |
| Fresno (CA) |
0 |
| Jessup (MD) |
0 |
| Midlothian (VA) |
8 |
| National Total |
17 |
Stock levels last updated: March 8, 2026 5:04 PM
Professional Installation Available
Knobtown Cycle offers professional installation services. Contact us via a service request to learn more.
Thank you for Shopping at Knobtown Cycle!
When you shop with us, you’re not just buying motorcycle parts — you’re supporting a small, family-run business rooted right here in the heartland of America. Every order helps us keep riders on the road and fuels our passion for serving the motorcycle community.
From all of us at Knobtown Cycle, thank you for choosing local and riding with us.
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