2 pcs Auto parts:1 x Cap For Oil Filler & 1 x Belt Tensioner Idler PulleyBrand new and high quality Tension Wheel avoids belt slippage, compensate for belt wear and elongation after aging. The noise is small, and it can prevent slipping.Advantages-According to the different degree of tightness of the belt, the tension can be automatically adjusted, to make the transmission system stable, safe and reliable.belt, the tension can be automatically adjusted, to make the Only the best steels are used Use only the best rubber materials roll smoother and longer lasting.Easy to install, but professional installation is highly recommended.Item Type: Belt Tensioner Idler PulleyOE NO.: 11281748131INTERCHANGE PART NUMBERS: 11 28 1 726 343 / 11281726343,11281748131 / 11 28 1 748 131Manufacturer Part Number: 5320001100 / 11281748131FOR:BMW E46 325 330 E39 528 530 E53 X5FITS THE FOLLOWING:1992-1992 BMW 318I BASE CONVERTIBLE 2-DOOR1992-1999 BMW 318IS BASE COUPE 2-DOOR1995-1999 BMW 318TI BASE HATCHBACK 2-DOOR1992-1995 BMW 320I BASE SEDAN 4-DOOR2000-2000 BMW 323CI BASE COUPE 2-DOOR1998-1999 BMW 323I BASE CONVERTIBLE 2-DOOR1998-1999 BMW 323IS BASE COUPE 2-DOOR1999-2000 BMW 323TI BASE HATCHBACK 2-DOOR2001-2005 BMW 325CI BASE CONVERTIBLE 2-DOOR2001-2005 BMW 325CI BASE COUPE 2-DOOR2000-2000 BMW 328CI BASE COUPE 2-DOOR1996-1999 BMW 328I BASE CONVERTIBLE 2-DOOR1996-2000 BMW 328I BASE SEDAN 4-DOOR2005-2005 BMW 330I M SEDAN 4-DOOR1999-2003 BMW 540I BASE WAGON 4-DOOR2001-2006 BMW X5 3.0I SPORT UTILITY 4-DOOR2003-2006 BMW X5 4.4I FORMULA 1 SPORT UTILITY 4-DOOR2002-2006 BMW X5 4.4I LUJO SPORT UTILITY 4-DOORProduct Name: Oil Filler CapOE NO.: 11121743294Colour:blackMaterial:plasticSize: about 6.5cm(L) x 6.5cm(W)Package Contents:1 x Cap For Oil Filler1 x Belt Tensioner Idler PulleyOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.