Eagles rallied to snatch a 1-1draw and see the two sides who came into the match unbeaten in their last six games deservedly share the spoils in Choma.
Buffaloes took the lead in the 28th minute through Diamond Chikwekwe to see them go 1-0 into the break.
But Eagles had the last say through Anos Tembo in the 48th minute to see his side displace Power from third place on goal difference tied on 44 points.
Buffaloes rise to 53 points but are four points behind Zesco who visit Power in Kitwe on Sunday.
Power drop to 4th ahead of Sundays big test for them at home against Zesco who ended their five-0match unbeaten start to the 2018 season on April 14 with a 2-1 win in Ndola.
Meanwhile, Zanaco slumped to 5th from 4th on 44 points following a devastating 3-1 away defeat in their Lusaka derby against struggling National Assembly at Woodlands Stadium in Lusaka.
Zanaco made a false start when Ernest Mbewe put them ahead in the 15th minute.
But goals for Tshite Mweshi,Peter Mwangani including a George Chaloba penalty in the 39th, 44th and 49th minutes respectively stunned the 2017 runners-up.
Assembly, though, stay just above the bottom four relegation zone at number 16 on 24 points to set up a tasty demotion dogfight home date next weekend against 17th placed Napsa Stars, who have 19 points.
