THIS IS AN OEM GENUINE NEW OLD STOCK HOMELITE A-55191 OIL LINE. THIS IS AN OPEN BOX ITEM NOT IN ORIGINAL PACKAGING. THIS FITS MANY MODELS INCLUDING 4-20, 5-20, 6-22, 7-21C, 17, 700G, 707G, 770G, 775G, Super Wiz 55, Super Wiz 66, Super Wiz 80, AND Wiz 55. FEEL FREE TO MESSAGE ME WITH ANY QUESTIONS YOU MAY HAVE.  PLEASE BE SURE THIS PART FITS YOUR MACHINE AS I WILL NOT ACCEPT RETURNS DUE TO A BUYER ORDERING THE WRONG PARTS.  IF YOU ARE UNSURE YOU CAN MESSAGE ME WITH YOUR MODEL AND SERIAL NUMBERS AND I WILL LOOK IT UP FOR YOU IF I HAVE ACCESS TO THE PARTS DIAGRAMS TO GUARANTEE YOU RECEIVE THE CORRECT PARTS FOR YOUR MACHINE.  IF MY PART IS LISTED BY BRAND AND PART NUMBER PLEASE DO NOT ASK ME FOR MEASUREMENTS. I WILL NOT PULL PARTS TO TAKE MEASUREMENTS. THIS IS WHY I OFFER PARTS LOOKUP SERVICE.