2P1388 Cogged V-Belt Set of 2 for Caterpillar

The 2P1388 is a set of two cogged V-belts for Caterpillar equipment and engine applications. It is listed for Caterpillar engines, generator sets, industrial engines and petroleum products, including the 3306, C9, 3126B, C-9, C7, CX31-C9I and TH31-C9I models. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part belongs to the Engine Belts category. The supplied product is identified as a two-belt set, with the reference 2P1388 also shown in the hyphenated form 2P-1388. The fitment information below is limited to the Caterpillar equipment and model references provided for this part.

Fitment

• Equipment manufacturer: Caterpillar
• Equipment type: Caterpillar engine applications
• Equipment type: Caterpillar generator sets
• Equipment type: Caterpillar industrial engines
• Equipment type: Caterpillar petroleum products
• Engine model: Caterpillar 3306
• Engine model: Caterpillar C9
• Engine model: Caterpillar 3126B
• Engine model: Caterpillar C-9
• Engine model: Caterpillar C7
• Transmission or powertrain application: Caterpillar CX31-C9I
• Transmission or powertrain application: Caterpillar TH31-C9I

The model references include both C9 and C-9 designations as supplied in the available application data. The C7 and C9 references were listed more than once in the source information and are shown once each here. Compatibility should be checked against the equipment identification and the installed belt reference before replacement.

Cross-reference numbers

• Caterpillar equipment part number: 2P1388
• Hyphenated part-number format: 2P-1388
• Product SKU: 2P1388

The available data identifies 2P1388 and 2P-1388 as the applicable reference formats for this belt set. No separate supplier part number or additional cross-reference number is provided in the available product information.

Specifications

The dimensions and weight above are the listed product measurements supplied for SKU 2P1388. They are not identified as the working length, belt width, belt thickness or belt cross-section. No additional technical values, such as belt profile, pitch, material specification, pulley dimensions or tension setting, are provided for this part.