Another member of the Fab Four has ended a long-running feud with Apple, further clearing the way for the arrival of The Beatles’ catalog online.

EMI and the estate of John Lennon yesterday announced a deal with Apple Inc.’s iTunes to make the solo work of the late Beatles star available for download for the first time through the popular service.

The pact ends a more than 18-month-old iTunes holdout by the Lennon estate, stemming from an extended trademark fight between iPod/iTunes-owner Apple Inc. and Apple Corps., the Beatles label.

That lawsuit settled in February, laying the groundwork for the truce.

Lennon’s catalog has been online for well over a year through other retailers. But it has not been compatible with the iPod and has yielded minimal sales.

Paul McCartney and iTunes inked a similar deal for his solo work in May, ending his holdout.

Ringo Starr has announced that he will start selling his solo music Aug. 28.

The deals remove major hurdles in the long-running saga of the digital music retailer’s quest to gain access to The Beatles catalog, considered by many to be important symbolic gesture in the legitimacy of music downloads as a business.

However, the estate of George Harrison remains a lingering sticking point. His solo material has yet to be made available anywhere online.