The MTA wants to change Long Island Rail Road workers’ contracts so it can finally yank the pensions of those who commit overtime fraud and other abuses on the job, according to documents obtained by The Post.

The proposal — put forward in collective bargaining documents recently filed to the National Mediation Board — comes as the agency faces multiple probes after workers were found logging seemingly impossible OT hours and retiring with fat pensions.

The contract proposal would give the LIRR the power to revoke pensions of workers who have committed “egregious and willful misconduct,” including criminal misconduct — even after they’ve left the job.

The MTA’s Inspector General announced last month it had busted 22-year LIRR veteran Raymond Murphy hanging out at home while on the clock and receiving overtime pay.

In one five-day period, he also claimed to have worked 114 of a possible 120 hours.

Murphy retired before disciplinary action could be taken — and is now able to collect his full pension of $78,554 a year.

The LIRR is also facing probes from the Manhattan US Attorney’s office, the Queens District Attorney and the IG after watchdog group the Empire Center showed staff at the railroad raking in hundreds of dollars in overtime pay.

Pension forfeiture is just one of dozens of concessions the agency is hoping to win ahead of negotiations with the 10 unions representing LIRR workers — including eliminating double-time and capping consecutive hours.

The unions have been working without contracts since April. The last round of negotiations nearly ended in a strike, and the MTA’s demands this time are bring met with stiff opposition from union leaders.

“Between the accusations of employees being criminal, we have a morale problem,” said Christopher Natale, leader of the Brotherhood of Railroad Signalmen Local 56. “If a cop goes out and shoots his wife, you don’t vilify the whole NYPD.”

The Empire Center’s E.J. McMahon said the existing rules encourage misconduct.

“One of the reasons people cross the lines to exploit overtime rules is when the overtime rules are extremely generous,” he said. “You’d have less of a pension problem if you didn’t have rules that made it easy to pad your pay.”

MTA chairman Pat Foye last month called on lawmakers about:blank and the agency’s labor contracts to facilitate pension pulling.

An MTA spokesperson declined to comment.

Additional reporting by Bernadette Hogan