9Y4004 Piston Body for Caterpillar Equipment

9Y4004 is a piston body used in Caterpillar equipment, including earthmoving compactors, machine engines, generator-set engines, and generators. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified as BODY AS-PISTON and is listed for Caterpillar engine and machine applications associated with the 826C, 3306, 3406, 3406B, 3406C, and SR4 model or series designations. The Caterpillar equipment brand is specified for the compatible applications; the part is manufactured by CTP.

Fitment

• Caterpillar 826C earthmoving compactor
• Caterpillar 3306 engine
• Caterpillar 3406 engine
• Caterpillar 3406B engine
• Caterpillar 3406C engine
• Caterpillar SR4 generator
• Caterpillar engine installed in a machine
• Caterpillar engine installed in a generator set

The supplied application data associates the piston body with the equipment types and models listed above. Verify the machine or engine serial number and the existing part number before installation when several configurations are present within the same model or series.

Cross-reference numbers

The Caterpillar manufacturer part number for this piston body is 9Y4004. The following numbers are listed as interchangeable or associated aftermarket reference numbers for the same application:

• 9Y4004
• 2900017
• 1W9373
• 1W9372
• 20R1115
• 3780509
• 7E8929
• 8N1605
• 20R1116

Cross-reference numbers are provided for part identification and catalog matching. They should be checked against the equipment configuration before the part is installed.

Specifications

The listed dimensions are 16 cm in length, 15 cm in width, and 15 cm in depth. The listed weight is 6.6 lb. No additional material specification, thread information, piston-ring configuration, pin specification, or included components are provided for this part.