Wests Tigers have beaten North Queensland 26-18 at Campbelltown for their fifth straight NRL win.

Wests Tigers made it five-straight NRL victories with a 26-18 triumph over North Queensland in a thrilling contest at Campbelltown on Sunday.

A Tim Moltzen try, his second of the match, two minutes before fulltime sealed the win in front of a home crowd of 13,059.

While the Tigers took the points in the seven-try classic, it was Cowboys and NSW prop James Tamou who was the star of the show, the giant front-rower producing two extraordinary plays to keep his side in the game.

Tamou was in everything, including a fight with Benji Marshall in the first half.

He put a late hit on the Tigers playmaker when he made a clearing kick, resulting in the prop being placed on report for dangerous contact.

About 10 minutes into the second half, Marshall fielded a kick in his own in-goal before weaving through the Cowboys defence.

Marshall looked set to score as he hit the halfway line only to be run down by a flying Tamou before the Tigers playmaker passed to Chris Heighington and the play was soon shut down.

Soon after Tamou broke the Tigers line and ran 55 metres, stepping Moltzen before he was cut down.

The Cowboys scored from the next tackle, Ashley Graham diving over on the right edge in the 65th minute with Johnathan Thurston slotting the goal to make it 20-18.

Graham's try came eight minutes after Marshall scored after selling a dummy to Glenn Hall.

The home side went into the halftime break leading 14-12 after Lote Tuqiri scored a 40 metre intercept try two minutes before the bell.

The Tigers made a great start with Moltzen scoring in the second minute from a Marshall bomb which Bowen fumbled under pressure from Chris Heighington with the video referee giving the home side a benefit of the doubt decision.

North Queensland hit back with tries to Glenn Hall and Antonio Winterstein.