The Heavy Cargo Pack Add-on for Euro Truck Simulator 2 has 5 achievements.
Deliver first Heavy Cargo (requires Heavy Cargo Pack DLC)
Complete a perfect delivery (no damage, no fines, in-time) of 3 consecutive Heavy Cargo Pack jobs (requires Heavy Cargo Pack DLC)
Collect 1,000 XP from parking on Heavy Cargo Pack deliveries (requires Heavy Cargo Pack DLC)
Deliver total of 250 tons of cargo on 5 consecutive jobs (requires Heavy Cargo Pack DLC)
Complete a delivery of all heavy cargoes in Euro Truck Simulator 2 (requires Heavy Cargo Pack DLC)