PUMP GP-MAIN HYDRAULIC 4884577 - Caterpillar

(90U),
3406B (6TB),
3406C (3ER),
3406E (6BR),
3456 (3LW) Industrial Engines;
3406B (4TB),
3406C (1SS),
3406E (9WR) Marine Engines;
3406B (2WB),
3406C (4ZR) Generator Set;
G3406 (1RK, 4FD Industrial EnginesSUPPLEMENT: APRIL 1999Engine News SEBD9270, Article 5, Page 3, March 1999; "New Flywheel Housing Gasket For 3406 Engines".In addition to the other engines that are listed for the article, the change also applies to the G3406 (4FD) Engine.
--------------- END SUPPLEMENT ---------------Description of Change: A new flywheel housing gasket that utilizes an anti-stick coating on the beaded sided of the gasket is used on the above engines. This coating will help prevent gasket fracture due to thermal scrubbing. The new gasket will help prevent leaks between the flywheel housing and the cylinder block.Adaptable To: The new 159-3021 Gasket is for 19 bolt flywheel housings. The new 155-5619 Gasket is used for 24 bolt flywheel housings. The former 105-5082 Gasket is canceled.