these are example of part number that i need, i can find some of them refurbish or OEM and for some them there is Brand new Original or any other category. please let me know which type available with you at what price and condition? Sr# Part # 1 500662-B21 2 647901-B21 3 672631-B21 4 726719-B21 5 805351-B21 6 836220-B21 Sr# Part # 1 785067-B21 2 507127-B21 3 507125-B21 4 781518-B21 5 870765-B21 Show More