The Mexican striker has already netted 29 goals in just 18 months at the club — 10 of which have come from the bench.
That tally means only United hero Ole Gunnar Solskjaer has scored more as a substitute.
The Norwegian scored 28 from 150 sub appearances but Hernandez's 10 goals have come from only 30 games.
And while many players would voice their disappointment at only playing a bit-part role for their side, Chicharito is more than happy to come on as an impact player.
The 23-year-old said: "I just want to help my team. I don't care if I'm on the bench.
"Last year I was on the bench at the start and then I was in the team towards the end of the season. The gaffer has the answers.
"Every player in every team wants to play as many minutes as possible, but I don't care if I start or I'm a substitute.
"I just want to enjoy it. I am living a dream to play for Manchester United."
Red Devils boss Alex Ferguson put Solskjaer's success down to the intense way he watched and studied a game from the bench.
Hernandez though cannot put his finger on why he has been so effective as a sub and admits it could all just be a bit of luck.
He added: "I don't know what makes me effective as a substitute. I don't have the answer.
"In football you can't always come up with a reason, because of this or that.
"If I play one minute, 10 minutes or 90 minutes I try to play the same. My mind is always to do my best and help my team.
"There are some times in the game when we need to score and perhaps I have had a little bit of luck."
His attitude to being a impact or starting player is good.Hopefully,he will remain with us for a long time.Who needs Tevez when you have Chicharito?