- Machine Engines:
- 3054 (S/N: 5HK1-UP; 7BJ1-UP)
- 3056 (S/N: 8XJ1-UP)
Description of Change: An improved valve cover gasket is now used on 3054 and 3056 machine engines. The new valve cover gaskets are made from an improved material which provides the following improvements: improved reliability, improved sealing and improved heat resistance.
Adaptable To: The new 200-6374 Valve Cover Gasket replaces the former 196-4886 Valve Cover Gasket, which has been cancelled. The new 200-6373 Valve Cover Gasket replaces the former 146-7463 Valve Cover Gasket, which has been cancelled.
Table 1 identifies the part numbers for the new valve cover gaskets. Table 1 also identifies the serial numbers that are adaptable to the new valve cover gaskets.
Part Numbers for the New Valve Cover Gaskets     | |||
Sales Model     | Serial Number     | New Part Number     | Former Part Number     |
3054     | (S/N: 5HK; 7BJ)     | 200-6374     | 196-4886     |
3056     | (S/N: 8XJ)     | 200-6373     | 146-7463     |
Note: Always install a new valve cover gasket when the valve cover is removed.For more information, contact your Caterpillar dealer.