6N6651 Cogged V-Belt Set of 2 for Caterpillar

The 6N6651 is a set of two cogged V-belts used in Caterpillar engine applications. It is intended for Caterpillar ENGINE - MACHINE and Caterpillar ENGINE - GENERATOR SET equipment, including the engine models listed below. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

Fitment

The belt set is identified for use with the following Caterpillar equipment and engine models:

• Caterpillar ENGINE - MACHINE
• Caterpillar ENGINE - GENERATOR SET
• Caterpillar 3306
• Caterpillar 3406
• Caterpillar 3406B
• Caterpillar 3406C
• Caterpillar 3408
• Caterpillar 3408B
• Caterpillar 3408C
• Caterpillar 3412

The listed models include the Caterpillar 3306, 3406, 3408, and 3412 engine families, together with the specified B and C versions. The application category covers both engines installed in machines and engines used in generator-set equipment.

Cross-reference numbers

The following numbers are associated with this belt set in the available application data:

Part number 6N6651 is the product SKU and the principal reference number for this set. Number 6N6650 is included as an additional cross-reference in the supplied data. Verify the belt number against the identification on the engine or the applicable parts documentation before installation, particularly where more than one belt configuration is used for the same engine family.

Specifications

The supplied dimensional data is recorded as length 7 cm, width 5.5 cm, and depth 30 cm. These values are provided as listed for the product and are not identified in the source data as the belt's effective length, section dimensions, or individual-belt measurements. The set contains two cogged V-belts; the source data does not specify the belt profile, pitch, groove dimensions, material compound, or tension setting.