







π Seal it tight, diagnose right β the proβs choice for engine care!
The Engine Air Valve Holder and Cylinder Leakage Testing Assistant Tool is a heavy-duty diagnostic device designed for gasoline engines with M12 or M14 spark plug threads. It pressurizes cylinders up to 1000 PSI using a durable steel wire braided hose, allowing valve oil seal replacement without dismantling and enabling precise detection of air leaks during compression. Equipped with a 1/4" quick coupler for easy air connection, this tool is essential for professional-grade engine maintenance and repair.





| Material | Brass, Rubber |
| Brand | kweiny |
| Fit Type | Vehicle Specific Fit |
| Vehicle Service Type | ATV, Motorbike, Passenger Car, Truck |
| Number of Pieces | 1 |
| Automotive Fit Type | Vehicle Specific Fit |
| Manufacturer | Xingzhu |
| UPC | 781573032666 |
| Item Weight | 5.5 ounces |
| Product Dimensions | 12 x 0.7 x 0.7 inches |
| Item model number | 5824091470 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | XZAMR000 |
| OEM Part Number | M12 and M14 |
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