When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
NOS Lucas Automatic Advance Unit 54425657 in original packaging from a vintage motorcycle shop that closed decades ago.These ignition. advance units are not perfect, as they have been sitting in a parts store, on a shelf, all their life. They are all usable and function as they should, but appears to have minor corrosion and minimal pitting in spots.The cams are still smooth and not pitted, but slightly stained by old grease. The bob weights and springs all move smoothly without binding.For the reasons mentioned, I am.selling them as slightly used, at a discount. I have 5 in original boxes and 1 without a box, all the same condition.Used on Triumph 500 650 750 twins, 12 degree advance, CW direction.Quantity:
5The Lucas 54425657 is a 12-degree clockwise (CW) automatic advance unit (AAU) used on vintage Triumph motorcycle twins from 1968 to 1978 (interchangeable with Triumph part number 99-1263).Part Number: Lucas 54425657 (Triumph OEM # 99-1263)Rotation: Clockwise (CW)Advance Degree: 12 degreesApplication: 1968–1978 Triumph 500, 650, and 750 twin motorcycles (points-style ignition systems)Function: Adjusts ignition timing automatically as engine RPM increases using centrifugal weights and springs.Please see my store for more NOS and vintage parts. I combine shipping to save you money!
