Parts occasionally have alternate part numbers. Check underneath the product specifications to see any recommendations. Any recommended alternates should be marked as identical in functionality.
Accessories are parts that coordinate with what you are purchasing.
Should you order a part that has an alternative number (but is the same product,) we will ship this part without notice. Although it is not always the case, parts with alias numbers are often marked with both numbers.
If a product is not in stock but has a comparable cross we may contact you to offer the similar product.