Specifications

The Dayton Parts 904-7359 Diesel Exhaust Fluid Header Unit is designed to replace a malfunctioning DEF level sensor in compatible Blue Bird school buses and commercial bus chassis. The assembly monitors diesel exhaust fluid level information used by the vehicle's selective catalytic reduction emissions system. It is supplied with a DEF header, 20-inch wiring harness, harness adapter, O-ring, and clamping ring to support replacement of the original equipment assembly. The unit features four electrical terminals, pin-type connections, and gray and black connector housings with square and circular configurations. This vehicle-specific replacement is intended for applications requiring the corresponding Blue Bird DEF header specifications. Confirm the original equipment part number, electrical connections, and DEF tank configuration before installation. Shop diesel emissions replacement components at Wofford Truck Parts.

Brand: Dayton Parts
Manufacturer Part Number: 904-7359
Product Name: Heavy-Duty Diesel Exhaust Fluid Header Unit
Product Type: DEF Level Sensor Assembly
Product Category: Diesel Emissions Components
Primary Application: Diesel Exhaust Fluid Tank
Vehicle System: Selective Catalytic Reduction (SCR)
Fitment Type: Vehicle-Specific
Primary Vehicle Manufacturer: Blue Bird
Primary Application Years: 2018–2024
Connector Color: Gray / Black
Connector Gender: Female
Connector Shape: Square / Circle
Terminal Gender: Male / Female
Terminal Quantity: 4
Terminal Type: Pin
Wiring Harness Included: Yes
Wiring Harness Length: 20 inches
Harness Adapter Included: Yes
Wire Gauge: 16–20 AWG
DEF Header Included: Yes
O-Ring Included: Yes
Clamping Ring Included: Yes
Package Contents: 1 DEF Header, 1 Harness Adapter, 1 O-Ring, 1 Clamping Ring
Installation Type: Direct Replacement
Product Condition: New Aftermarket
Supplier-Listed Weight: 4.00 lb
Product Length: Not Verified
Product Width: Not Verified
Product Height: Not Verified
UPC: 194883992375
Unit of Measure: Each

Compatibility

Blue Bird All American FE 2018-2024

Blue Bird All American RE 2018-2024

Blue Bird Chassis 2018-2019

Blue Bird SHL All American 2018

Blue Bird SHL All American 2020-2024

Blue Bird Vision School Bus 2018-2024


Alternative Part Numbers

  • Blue Bird 10019935
  • Blue Bird 10027844
  • Blue Bird 10035950
  • Blue Bird 10049766
  • Blue Bird 10049766
  • Blue Bird 10056545
  • Blue Bird 10060598
  • Blue Bird 10060598
  • Blue Bird 10071997
  • Blue Bird 10071997

Related Parts

DEF Header Unit
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