CAT Caterpillar NEW OEM Air Cleaner Secondary Element 346-6688 0810

Caterpillar OEM Air Cleaner Secondary Element — Part Number 346-6688
Brand: Caterpillar | Condition: New Old Stock (NOS)

You are purchasing a genuine Caterpillar OEM Air Cleaner Secondary Element (inner/safety element), part number 346-6688. This is an authentic factory original part — never installed, never used.

Condition Details: This is a New Old Stock (NOS) part. The filter element itself is in new, uninstalled condition. As is common with NOS inventory, the original packaging may show signs of age, including shelf wear, dust, or minor cosmetic blemishes on the bag or box. The part is new and fully functional.

Part Number / Supersede Information:

• Primary OEM Part Number: 346-6688
• Also referenced as: 3466688
• Used with Primary Element: 346-6687
• Cross-references: Baldwin PA5290, Agco H416200090110, Claas 217189.10
• This part number may have been superseded or cross-referenced by an updated Caterpillar part number. We recommend verifying any current supersede numbers through your local Cat dealer or the official Caterpillar parts catalog (parts.cat.com) prior to ordering.

Specifications:

• Type: Air Cleaner Secondary (Safety/Inner) Element — Oval
• Outer Diameter: 5-3/16" to 10-5/16" (131.8–261.9mm)
• Length: 1-1/2" (38.1mm)

About This Part:
The secondary air element is your last line of defense against dust, dirt, and contaminants. It protects the engine while the primary filter is being serviced or in the event of a breach in the primary element. Never clean and reuse a secondary element — replace it at every other primary element change or whenever it is damaged.

Compatible Equipment:

• Backhoe Loaders: 415F2, 416F, 416F2, 420F, 420F2, 422F, 422F2, 426F2, 428F, 430F, 432F, 434F, 444F, 450F
• Track-Type Tractors: D3K2, D4K2