This is a alternator from a Mercruiser boat. Not exactly sure as to the year of the motor but we are fairly certain that it is a 1984 motor. This is the MARINE version of this alternator so it has spark resistant screens on the top. This part should fit on several other years and models but research is vital to ensure purchase of proper part. Sold exactly as pictured. Our goal is to continue providing outstanding customer service with every order. Every effort is made to inspect the item and provide an accurate description so that you can buy with confidence! We would be happy to try and answer any and all questions regarding our products. We usually ship on Monday and Thursday. Please check out our store! Thanks! Returns: Items sold AS IS! Returns are allowed only if the item is defective or if we made a mistake in the listing. Returns are allowed for 14 days only. Buyer is responsible for return shipping costs. Buyer must contact us via email before returning any item. (Buyer should do own research to ensure purchase of the correct part.) Payment: PAYPAL is preferred. Payment is expected within 7 days of the auction closing. After that, the item will be relisted. Shipping: We normally ship twice a week (Monday Thursday) or within 1-2 business days of when the payment is received and cleared. If you purchase multiple items, then please allow us to send an invoice to save you a little on shipping! Unless otherwise stated, products will be shipped via USPS. Contact seller for any items being shipped to anywhere other than the lower 48 states. Additional shipping charges will apply to all places outside of the lower 48. Buyer is responsible for all shipping costs. Arrangements can be made to pick up item locally. Feedback and Detailed Seller Ratings: We would appreciate positive feedback from all of our buyers. If you have any problems, questions, or concerns about the merchandise you purchased, please contact us before leaving any negative or neutral feedback.