8F7278 Diaphragm for Caterpillar Air Compressor

8F7278 is a diaphragm used in the air compressor category for Caterpillar equipment. The part is intended for installation on the listed articulated trucks, tractors, trucks, wheel scrapers, and wheel tractors manufactured by Caterpillar.

This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

Fitment

The diaphragm is listed for the following Caterpillar equipment models and machine series:

• Articulated trucks: D35C, D35HP, D44B, D550B.
• Tractor: 772.
• Trucks: 769, 773B.
• Wheel scrapers: 630B, 631D, 633D, 637D, 651, 657B, 666.
• Wheel tractors: 631C, 633C, 651, 657.

Application data identifies Caterpillar as the equipment manufacturer. The same model designation may occur in more than one equipment category, so the machine type should be checked together with the model number when confirming installation.

Listed applications by equipment type are as follows:

Cross-reference numbers

The supplied product data identifies the part by the following number:

• 8F7278

Part number 8F7278 is the SKU and the listed identification number for this diaphragm. No additional equipment-manufacturer or supplier cross-reference numbers are provided in the available data.

Specifications

The available dimensional data records a length, width, and depth of 1 cm each. These values are reproduced from the supplied product information and do not include any additional dimensional details, material specifications, thread data, mounting information, or kit contents.

Before installation, the equipment model and the identification number on the removed diaphragm should be compared with the listed application and part number 8F7278.