
Description
Overview
DEF header unit designed to mount in the DEF tank and support fluid pickup and level/temperature monitoring where applicable for proper DEF system operation. Proper header function helps maintain consistent DEF supply to the aftertreatment system and supports reliable dosing performance.
Fitment
- Freightliner Cascadia – Detroit Diesel DD13 12.8L (2011–2020)
- Freightliner Cascadia – Detroit Diesel DD15 14.8L (2011–2019)
- Western Star 5700XE – Detroit Diesel DD13 12.8L (2016–2020)
- Western Star 5700XE – Detroit Diesel DD15 14.8L (2016–2022)
Note: Verify fitment with us before ordering to ensure the correct part for your application.
Why buy from Wisent Parts
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Fast shippingOrders before 12PM EST ship same business day.
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180-day warrantyAll parts covered from delivery date.
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Easy returns30-day returns.
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Verify fitmentSend VIN/ESN and we’ll confirm.
Shop with confidence