540 brushed motor

OK guys here's a tough one....I think.

My B&D cordless drill just died on me, sudden loss of power and loads of thick black smoke belching out. Motor is DOA for sure.

This is the kind of motor you can't service, I can't anyway. So I need to find a replacement for it. Found an e-store with B&D replacement parts, but my drill isn't listed. Already googled all the numbers on the can. All I know it's a Johnson Electric motor, with a 16t pinion. I think it's 540 anyway, dimension are 38x56mm.

Thought you guys might be able to help, a new drill is not in the budget right now.