Part Type: Rear Engine Cover Gasket
Brand: NEXGEN – Premium Replacement
Part Numbers: 1555619, 155-5619
Product Description
The 1555619 rear engine cover gasket by NEXGEN is a high-quality premium replacement designed for selected CAT engines and machines. It is installed between the rear engine cover and the engine block, providing a reliable seal while effectively preventing engine oil leaks and the ingress of contaminants into the engine. It is located in the flywheel housing area at the rear of the engine.
Manufactured from high-quality sealing materials resistant to high temperatures, oil, and demanding operating conditions, it ensures long service life and reliable performance. Precision engineering guarantees accurate fitment and long-lasting sealing performance.
Product Features
Applications
CAT Excavators:
374, 374F L, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 390F L, 395
CAT Track-Type Tractors:
D8, D8N, D8R, D8R II, D8T, D8GC, D9, D9T
CAT Wheel Loaders:
980C, 980F, 980F II, 980G, 980G II, 980H, 986H, 986K, 988G, 988H, 988K
CAT Off-Highway Trucks:
D35HP, D40D, D350E II, D400, D400D, D400E II, 735, 735 OEM, 735B, 735C, 740, 740 GC, 740B, 740C, 745, 745C
CAT Wheel Tractor-Scrapers:
621, 621B, 621E, 621F, 621G, 623B, 623E, 623F, 623G, 627B, 627E, 627F, 627G, 631D, 631E, 631G, 631K, 633D, 633E II, 637D, 637E, 637G, 637K, 651, 651E, 657, 657B, 657E, 657G
CAT Compactors:
814B, 824C, 824G, 824G II, 824H, 824K, 825C, 825G, 825G II, 825H, 825K, 826C, 826G, 826G II, 826H, 826K, 834G, 834H, 834K, 836G, 836H, 836K
Function of the Rear Engine Cover Gasket
The rear engine cover gasket provides a leak-proof seal between the rear engine cover and the engine block. It prevents engine oil leaks, protects the engine interior from contaminants, and maintains proper sealing around the rear section of the engine and the flywheel housing.
A worn or damaged gasket may cause engine oil leaks, contamination of the engine compartment, loss of sealing, and an increased risk of damage to surrounding engine components.
Data sheet
Specific References
Manufacturer
Responsible person






The 1555619 rear engine cover gasket by NEXGEN is a high-quality premium replacement designed for selected CAT engines and machines. It is installed between the rear engine cover and the engine block, providing a reliable seal while effectively preventing engine oil leaks and the ingress of contaminants into the engine. It is located in the flywheel housing area at the rear of the engine.

















