This driveshaft bearing upgrade is designed to replace the small nylon bush of the older "C" model ABU Ambassadeur 4500, 5000, 5500, 6000 and 6500 reels, making your reel much smoother and reducing wear on the driveshaft and gears.
The nylon bushes are prone to wear, creating play in the drive and shortening the life of the gears. Simply replace the 8x13x7 nylon bush (Part No: 19361) with the two washers and bearing as shown in the picture below to get rid of the problem for good.
Fits all models with an 8mm driveshaft and a 13mm ID to the right side plate boss which is fitted with ABU part No 19361 (7mm deep nylon bush) as standard. The bearing is a direct replacement for ABU part No 20647.
Please note: the bearing included is not an IAR bearing and you will need to retain the anti-reverse pawl on your reel.