Baldwin PE17002 KIT DEF Filter | Bosch Denoxtronic 2.2 SCR | Freightliner Kenworth

Baldwin PE17002 KIT diesel exhaust fluid (DEF) filter kit for SCR systems using Bosch Denoxtronic 2.2 dosing units. The filter removes urea crystals and contaminants before they reach the dosing valve, where buildup causes SCR faults and engine derates. Supplied as a complete kit — filter element in housing, frost compensation membrane, spray lubricant, O-ring and instruction sheet.

Key Features

• Complete kit, not a bare element — includes the frost compensation membrane, O-ring and spray lubricant needed for the service
• Protects the dosing valve from urea crystal buildup, a common cause of SCR faults and derates
• Covers Cummins, Detroit and Paccar engine platforms across a wide range of chassis
• Replaces Cummins 4388378, Mercedes A0001421089 and Paccar 2122909PE
• Baldwin is a Parker brand

Kit contents

• DEF filter element in filter housing
• Frost compensation membrane
• O-ring
• Spray lubricant
• Instruction sheet

Specifications

• Part number: PE17002 KIT
• Filter type: Diesel exhaust fluid (DEF) / urea filter kit
• Dosing system: Bosch Denoxtronic 2.2
• Housing height: 4 in (102.5 mm)
• Housing outside diameter: 2-15/16 in (75 mm)
• Element outside diameter: 1-11/16 in (42.7 mm)
• Element inside diameter: 19/32 in (15.2 mm)
• Element configuration: one end open
• Sold as: kit

Compatibility & Fitment

• Freightliner: Cascadia, Cascadia Evolution, Business Class M2 106, M2 112, Coronado, Coronado SD, 108SD, 114SD, 122SD
• Kenworth: T880
• Western Star: 4900EX, 4900FA, 4900SA, 5700XE, 6900XD
• Mercedes-Benz European trucks
• Engine platforms: Cummins ISL, ISX, ISX15, X15 and X12; Detroit DD13, DD15 and DD16; Paccar MX-11 and MX-13
• Also fitted across a broad range of on-highway, vocational, bus and RV chassis using Bosch Denoxtronic 2.2 dosing systems

Fitment gate — this kit is specific to Bosch Denoxtronic 2.2 dosing units. SCR systems using other dosing generations take a different filter. Confirm your dosing system generation before ordering, or match against your OEM DEF filter part number.

Installation note — check that all kit components are present on receipt: element, frost compensation membrane, O-ring and spray lubricant. The frost compensation membrane accommodates DEF expansion when it freezes and should be replaced with the element, not reused.

Cross-References

• Fleetguard: UF106
• Cummins: 4388378
• Mercedes-Benz: A0001421089, A0001420589, A0001420789, A0001420989
• Freightliner: A0001421089
• Paccar: 2122909PE
• DAF: 2122909
• Mann-Hummel: U58/9KIT, U58/7KIT, U58/11KIT
• WIX: WS10021
• NAPA: 220021

Conclusion

The Baldwin PE17002 KIT is a complete DEF filter kit for Bosch Denoxtronic 2.2 SCR dosing systems, replacing Cummins 4388378 and Fleetguard UF106. Replacing it on schedule protects the dosing valve from urea crystal buildup and the derates that follow. Confirm your dosing system generation before ordering.