2V3687 Gear Diff 38T for Caterpillar

2V3687 is a 38-tooth differential gear used in equipment manufactured by Caterpillar. The listed applications include Caterpillar 3406, 3406B, 3406C and 980C equipment, including Caterpillar engines, machines and wheel-type loaders. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part belongs to the bevel gear and gear sets category. Its primary identification is the 2V3687 part number, and the gear is specified with 38 teeth. The supplied application information identifies the part for use with the Caterpillar models and equipment types listed below.

Fitment

• Caterpillar 3406
• Caterpillar 3406B
• Caterpillar 3406C
• Caterpillar 980C

The listed fitment covers Caterpillar engine and machine applications as well as Caterpillar wheel-type loader equipment. Model designation, equipment arrangement and serial number should be checked against the machine parts documentation before installation, because the same machine family may contain different component configurations.

Cross-reference numbers

Part number 2V3687 is the identification number for this gear and is also included among the known cross-reference numbers. Number 2V6554 is listed as an interchangeable reference for the same application. Cross-reference information should be compared with the number stamped on the removed component and with the equipment parts documentation.

Specifications

The dimensional and weight values are the available product data for the listed 2V3687 gear. Length, width and depth refer to the packaged or recorded overall product dimensions as provided in the source information; no separate dimensional drawing or tolerance data is specified. The available data does not include material grade, bore diameter, tooth profile, pitch, mounting method or installation hardware, so these parameters are not stated.

The supplied information identifies the part by tooth count, application models and cross-reference numbers. Before fitting, confirm that the existing gear has the same part number or an applicable reference number, the same 38-tooth configuration and a matching assembly position in the Caterpillar equipment.