2N3322 Gage G Fits Caterpillar Models

One New Aftermarket Replacement Air Filter Change Indicator for Caterpillar (Cat) Engines and Equipment

This aftermarket replacement air filter change indicator (restriction indicator) mounts on the air intake system and signals when the engine air filter has reached its service limit. By monitoring air restriction rather than relying on visual inspection, it helps maximize filter life, reduce unnecessary maintenance costs, and protect engine performance. Caterpillar (Cat) OEM part number 2N3322 supersedes to 7S0687.

Specifications

• Dimensions: 0.39 x 0.39 x 0.39 in.
• Weight: 0.1 lbs.
• Type: Air filter restriction / change indicator (flag-type or graduated-type)

Compatible Models

Caterpillar Engines: 3116, 3126, 3126B, 3208, 3304, 3304B, 3306, 3306B, 3306C, 3406, 3406B, 3406C, 3406E, 3408, 3408B, 3408C, 3412, 3412C, 3412E, 3456, C7, C9, C15, D330C, D333C, D342, D342C, D343, D346, D348, D349, D353C, D353D, D353E, D379, D379A, D379B, D398, D398A, D398B, D399

Caterpillar Track-Type Tractors: D3, D3B, D3C, D3C II, D4B, D4C, D4C II, D4D, D4E, D5, D5C, D6C, D6D, D7F, D7G, D8H, D8K, D9G, D9H

Caterpillar Motor Graders: 12E, 12F, 12G, 14E, 14G, 16, 120, 120B, 120G, 130G, 140, 140B, 140G

Caterpillar Wheel Tractors / Scrapers: 621, 621B, 623, 623B, 627, 631C, 631D, 633C, 633D, 637, 641B, 650B, 651B, 657B, 660B, 666B

Caterpillar Pipelayers: 561C, 561D, 571G, 572G, 574, 583K, 594, 594H

Caterpillar Wheel Skidders: 518, 528

Caterpillar Integrated Toolcarrier: IT12

Caterpillar Generators: SR4, 3306B, 3408C, 3412, 3412C, 3456, C7.1, C9, C15, C18, C27, DE165GC, DE200GC, DE220GC, XQP100, XQP150

Caterpillar Power Modules: PM3412, PM3456

Caterpillar Pumpers: HT400

Replaces Part Number(s):

2N3322, 7S0687, 7S-0687, 4914212, 491-4212, CA7S0687

New aftermarket replacement part - not remanufactured, not used.