This 15 lb round tractor radiator pressure cap is the larger type commonly fitted to agricultural tractors and machinery. The cap measures approximately 70mm OD and is designed to fit radiators with a 68mm OD filler neck. Suitable for use on a wide range of tractors, agricultural equipment and plant machinery where a higher pressure, large-diameter radiator cap is required. Fitment advice: Please measure your existing filler neck and cap before ordering. If you are unsure, message us with your measurements or a photo and we will help confirm compatibility. Returns: 30-day returns accepted. Buyer pays return postage unless otherwise stated. Message us anytime if you need help confirming fitment or require other tractor.