Engine Air Filter 1131579

Engine air filter for Caterpillar industrial engines, generators, and engine-generator sets. This filter is installed as the secondary filter element in the engine air intake system and uses an axial seal. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The filter is identified by SKU 1131579 and is used with the Caterpillar equipment applications listed below. The supplied application data distinguishes industrial engine use, generator use, and engine-generator set use.

Fitment

• Caterpillar industrial engines: 3512B
• Caterpillar industrial engines: 3512C
• Caterpillar industrial engines: 3512E
• Caterpillar industrial engines: 3516B
• Caterpillar industrial engines: 3516C
• Caterpillar industrial engines: 3516E
• Caterpillar generator: SR4B
• Caterpillar engine-generator sets: 3516B
• Caterpillar engine-generator sets: 3516C

For industrial engine applications, the listed compatible series are Caterpillar 3512B, 3512C, 3512E, 3516B, 3516C, and 3516E. For generator equipment, the supplied data specifies the Caterpillar SR4B series. For engine-generator sets, the listed models are Caterpillar 3516B and 3516C.

Cross-reference numbers

• 113-1579

Part number 113-1579 is the hyphenated number format associated with SKU 1131579. The supplied product data does not identify additional supplier numbers or other equipment-manufacturer numbers.

Specifications

The filter specification is for secondary filtration rather than the primary filter position. Its sealing configuration is axial, and the stated efficiency classification is standard efficiency. The dimensions provided for the part are 49 cm in length, 43 cm in width, and 43 cm in depth; the listed weight is 12 lb.

Application identification should be checked against the equipment model and the existing filter number before installation, particularly where the same engine series is used in different equipment configurations. The fitment information provided applies to the Caterpillar industrial engines, the SR4B generator, and the 3516B and 3516C engine-generator sets listed above.