AH51
| Asian Highway 51 | ||||
|---|---|---|---|---|
| Kohat Tunnel on AH51 | ||||
| Route information | ||||
| Length | 825 km (513 mi) | |||
| Major junctions | ||||
| North end | Peshawar, Khyber Pakhtunkhwa Province | |||
| South end | Quetta, Balochistan Province | |||
| Location | ||||
| Countries | Pakistan | |||
| Highway system | ||||
| 
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Asian Highway 51 or AH51 is a route located entirely in Pakistan, running 825 kilometres (513 mi) from Peshawar, Khyber Pakhtunkhwa Province to Quetta, Balochistan Province.