

🛠️ Lock in engine performance with precision air pressure testing!
The Hromee Engine Air Valve Holder and Cylinder Leakage Testing Assistant Tool is a robust diagnostic device designed for gasoline engines with M12 or M14 spark plug threads. It pressurizes cylinders up to 110psi to hold valves closed, allowing valve seal replacement without engine teardown. Built with durable brass and rubber components, it ensures corrosion resistance and high-pressure durability. Ideal for professional mechanics and DIY enthusiasts aiming for precise engine leak detection and maintenance efficiency.



| Manufacturer | Hromee |
| Brand | Hromee |
| Model | HR4145 |
| Product Dimensions | 15.24 x 10.16 x 3.81 cm; 170.1 g |
| Item model number | HR4145 |
| Manufacturer Part Number | HR4145 |
| Material | Rubber, Brass |
| Assembly Required | No |
| Manufacturer | Hromee |
| Country of Origin | USA |
| Item Weight | 170 g |
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