FITMENT:
Compatible with Hino and Toyota heavy-duty diesel trucks equipped with SCR (AdBlue/DEF) emission systems, including:

• Hino 500 Series (various Euro 5 / Euro 6 configurations)
• Hino 700 Series (select SCR models)
• Toyota commercial trucks with Hino-based engines
• Some Detroit Diesel integrated SCR systems (application-dependent)

OEM / Cross reference numbers:

• 89463-37021
• 5WK96715A / 5WK9 6715A
• 89463-37021-71 / 89463-37021-70 (variant suffixes in some catalogs)

This NOx sensor is used in diesel SCR aftertreatment systems to monitor nitrogen oxide levels in exhaust gas and control AdBlue dosing for emissions compliance.

FUNCTION:

• Measures NOx concentration in exhaust stream
• Sends real-time data to ECU for SCR/DEF dosing control
• Ensures Euro 5 / Euro 6 emissions compliance
• Helps maintain SCR catalyst efficiency and prevent engine derate

INSTALLATION POSITION:

• SCR system inlet (upstream) NOx sensor
• Mounted between DPF outlet and SCR catalyst

FAQ:

Q1: Is this inlet or outlet sensor?
A1: This 5WK96715A / 89463-37021 is commonly used as the inlet (upstream) NOx sensor in Hino SCR systems.

Q2: What vehicles does it fit?
A2: Hino 500/700 series trucks and Toyota commercial vehicles using Hino SCR diesel engines.

Q3: What are failure symptoms?
A3: SCR warning light, engine derate, incorrect NOx readings, AdBlue system faults, or limp mode.

Q4: Is 5WK96715A interchangeable with OEM 89463-37021?
A4: Yes, 5WK96715A is the Continental manufacturer reference matching Hino OEM 89463-37021.

Q5: Does it require programming after replacement?
A5: Some Hino systems require SCR reset or ECU adaptation after installation.