Replacing a Starter with an Offset Pinion | Delco Remy Tech Tip

In this Tech Tip Video, we explain why you can replace a starter with an offset pinion with one that is centered. Despite the new starter having a different pinion size, tooth count and placement it may still be able to be used. Starters are designed to match the engine ring gear for proper mesh and performance. Most starters-including Delco Remy branded starters-have a centered pinion. However, some manufacturers use an offset pinion. If the old starter’s pinion is offset and the new one is centered, you will notice the pinion on the new starter is larger in size. The larger pinion is needed in order for the pinion to reach the ring gear when it is centered. Additionally, you’ll likely notice a higher tooth count. An offset pinion, on the other hand, has a smaller pinion size. So, in order for it to reach the ring gear, the pinion is offset and moved closer to the ring gear. Frequently, an offset pinion will have fewer teeth. -- delcoremy.com​ -- Delco Remy starters and alternators from BorgWarner are the preferred choice for medium and heavy-duty truck, bus and off-highway applications worldwide. Learn more at delcoremy.com​. Delco Remy is a registered trademark of General Motors Corporation, licensed to BorgWarner PDS (Anderson) L.L.C. -- delcoremy.com​ -- Safety Reminder The various electrical systems within a vehicle are highly charged and may include corrosive, poisonous, and hazardous materials. To remain safe, you must: - Know where the nearest eye wash station is located - Always wear eye protection - Remove any metallic items that could create an electrical charge including watches and jewelry - Never smoke near batteries - Never use batteries as a tool rest - Dispose of batteries properly when necessary - Follow usual safety precautions near rotating machinery.