Bracket, left for 518+520/4+520i+520/6 up to 08/1979, you need 4 for 1 car and for 525+528+528i up to 08/1979, you need 2 for 1 car, version 501-502/521-522-523/541-542-543
Seat rail, inner left for 518, 520/4, 520i, 525, 528 f. 08/73-05/77, 1 for 1 car, vers.501-502/521-522-523/541-542-543 (520/4LHD3727689/520/4RHD3320951/520A/4LHD3804603/520A/4RHD3340366/520iLHD3358600/520iRHD3310242-518LHD4661873/518RHD3825334/520/4LHD5363519/520/4RHD4405337/520A/4LHD4422332/520A/4RHD4435170/520iLHD4462550/520iRHD4853455/525LHD4853455/525RHD4505346/525ALHD4523556/525ARHD4535355/528LHD4777469/528RHD4740350/528ALHD4732546/528ARHD4745399/528iLHD5370054/528iRHD4765023/528iALHD478004