That's stock. If it's like mine, it has light tabs on it too. The only time-consuming part of reinstallation with that three-piece design is getting the rubber piece between each of the main vertical ribs lined up in it's groove on both parts as they fit together.

It's a decently made piece.

John B.

'87 Raider 2.6 Turbo Auto, Under Construction
'95 Montero SR, 35x12.5/15 BFG M/T KM-2's, Rock sliders, Qtr panel chop, gas tank lift, 2" BL, Aisins, 5.29s
'95 Pajero Mini
'98 Montero Winter Ed.
'04 Cadillac XLR
'03 Kawasaki ZRX1200R
'60 Ford Falcon 4Dr