We have used efco chainsaw parts for newer models on hand.

efco 156, 165, 962, 956 chainsaw chain tensioner assembly new pn 50010151 (new efco bin)
Part: chain tensioning screw with adjusting nut / pin Part # 50010151 Condition: new Fits: Efco 156, 165, 962, 956 Location: new Efco bin

efco 165, 156, 952, 956 chainsaw chain tensioner assembly
Part: chain tensioner screw and adjusting pin Part # 50010151 Condition: good used/working order Fits: Efco 156, 162, 952, 956

Efco 152 Chainsaw Lateral Chain Tensioner Assembly 50072027A
Side adjust chain adjuster assembly with gears, screw, adjuster nut etc. 50072027A In good used shape Fits Efco 152 147

efco 999, 981, 971 chainsw chain tensioner adjuster kit new pn 099900368b (new efco bin0
Part: chain tensioning screw with adjust pin and clamp Part # 099900368b Condition: new Fits: Efco 981, 999, 971

efco 165, 156, 952, 956 chainsaw chain tensioner pin
Part: chain tensioner screw and adjusting pin Part of assembly part # 50010151 Condition: good used/working order Fits: Efco 156, 162, 952, 956

Efco MT3500 Chainsaw Lateral Chain Tensioner Assembly NEW 50242010
Complete chain tensioner with gear, screw, and adjuster 50242010 NEW Fits Efco MT 3500