159590-7321 ZEXEL 9 421 620 649 BOSCH ADJUSTING DEVICE 9421620649 1595907321

Serial Number Plate
Located on the right rear side of the cylinder block.Information Plate
Located on the valve cover.Reference Numbers
Chassis Serial No.____________________ Engine Model____________________ Engine Serial No____________________ Performance Specification No.____________________ Fuel Filter No.____________________ Lubrication Oil Filter Element No.____________________ Auxiliary Oil Filter Element No.____________________ Supplemental Coolant Additive Maintenance Element No.____________________ Supplemental Coolant Additive Precharge Element No.____________________ Air Cleaner Element No.____________________ Fan Belt No.____________________ Alternator Belt No.____________________Ordering Parts
Quality Caterpillar replacement parts are available from Caterpillar dealers throughout North America and the world. Their parts stocks are up to date and include all parts normally required to protect your investment in Caterpillar engines.When ordering parts, your order should specify the quantity, part number, part name and serial number, arrangement number and modification number of the engine for which the parts are needed. If in doubt about the part number, please provide your dealer with a complete description of the needed item.When services is needed for your Caterpillar engine, be prepared to give the dealer all the information that is provided on the 9L6531 Information Plate located on the valve cover.Discuss the problem with the dealer, such as; when it occurs, what happens, etc. This will help the dealer in troubleshooting and solving the problem faster.