1853986 Sealant Fits Caterpillar Models

One New Aftermarket Replacement Silicone Sealant for Caterpillar (Cat) Equipment

This silicone sealant is a general-purpose adhesive and sealing compound used across a wide range of Caterpillar (Cat) equipment applications, including engine assemblies, housings, gasket surfaces, and other components requiring a durable, flexible seal. Replaces OEM part number 1853986, interchange for Caterpillar part number 3S6252.

Compatible Models

Caterpillar Challenger: 35, 45, 55

Caterpillar Cold Planer: PM-465

Caterpillar Engine - Generator Set / Industrial: 3034, 3054, 3054B, 3056, 3176, 3406B, 3406C, 3406E

Caterpillar Excavator: 311B

Caterpillar Backhoe Loader: 428

Caterpillar Hydraulic Excavator / Work Tool: 508, 533, 543

Caterpillar Compactor: CP-433B, CP-433C, CS-323, CS-433C

Caterpillar Articulated Truck: D250B

Caterpillar Motor Grader / Wheel Tractor-Scraper: 561H, 621B, 623B, 637D, 641B, 657B

Caterpillar Off-Highway Truck: 769C, 771C

Caterpillar Wheel Loader: 926

Caterpillar Track-Type Loader: 931B

Caterpillar Paving Compactor: A26B

Caterpillar Forest Products / Other: 75

Replaces Part Number(s):

1853986, 3S6252, 3S-6252

Aftermarket Interchange Numbers

Also interchanges with: 5P3308, 6S4061, 2W2142, 780660, 775347, 773935, 777636, 776335, 983855, 777840, 7X5608, 981154

New aftermarket replacement part - not remanufactured, not used.