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🔧 Don’t let leaks slow you down—pressure test like a pro!
The Guteauto Engine Air Valve Holder Pressure Pipe is a precision tool designed for quick and reliable cylinder leakage testing on gasoline engines. Compatible with M12 and M14 spark plug threads, it supports operating pressures from 30 to 110 PSI and features durable brass and rubber construction. Perfect for LS engines in Mustangs, Ford, GM trucks, and more, it includes a 1/4" NPT quick coupler for easy air compressor connection, making valve spring and seal maintenance efficient and accurate.





| ASIN | B0C56ZW4Q9 |
| Best Sellers Rank | #696,044 in Automotive ( See Top 100 in Automotive ) #289 in Engine Valve Train Tools |
| Brand | Guteauto |
| Customer Reviews | 4.0 4.0 out of 5 stars (110) |
| Date First Available | May 14, 2023 |
| Item Weight | 5 ounces |
| Manufacturer | Guteauto |
| Manufacturer Part Number | 230410gu0025 |
| Model | Engine Air Valve Holder Pressure Pipe - 230410gu0025 |
| Package Dimensions | 5.94 x 4.37 x 1.69 inches |
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