1669142 Gasket Fits Caterpillar Models

One New Aftermarket Replacement Front Cover Gasket for Caterpillar (Cat) 3406 Series Engines and Equipment

This aftermarket replacement front cover gasket (Cat part number 1669142 / 166-9142) seals the timing and front gear cover to the engine block on Caterpillar 3406-series diesel engines. It is a direct-fit replacement designed to prevent oil leaks and maintain proper function of the front cover assembly across a wide range of Cat-powered heavy construction, trucking, and industrial equipment.

Specifications

• Dimensions: approximately 23.23 x 7.09 x 0.03 in.
• Weight: approximately 0.4 lbs.
• Application: Front cover / timing gear housing gasket

Compatible Models

Caterpillar Engines: 3406, 3406B, 3406C, G3406

Caterpillar Articulated Trucks: D350E, D400E

Caterpillar Cold Planers: PM-465

Caterpillar Excavators: 375, 375 L

Caterpillar Front Shovels: 5080

Caterpillar Landfill Compactors: 826C, 826G

Caterpillar Motor Graders: 16G, 16H NA

Caterpillar Pipelayers: 578, 583R, 587R

Caterpillar Reclaimers / Stabilizers: RM-250C, RM-350B, RR-250, RR-250B, SM-350, SS-250

Caterpillar Soil / Landfill Compactors: 825G

Caterpillar Track-Type Tractors: D8N, D8R, D8R II

Caterpillar Wheel Dozers: 814B, 824G

Caterpillar Wheel Loaders: 980C, 980F, 980G

Caterpillar Wheel Scrapers / Tractors: 621E, 621F, 623E, 623F, 627B, 627E, 627F

Replaces Part Number(s):

1669142, 166-9142, 4W6857, 4208546, 6I3899

New aftermarket replacement part - not remanufactured, not used.