5126081 | Genuine Tiffin RV® Def Sensor Kit Gen6

Compatible Tiffin Models

This sensor kit fits heavy-duty, diesel-pusher Class A motorhomes. Compatibility depends heavily on the model year and chassis length:

• Tiffin Allegro Bus

• Tiffin Phaeton

• Tiffin Allegro RED

• Tiffin Zephyr

2. Chassis Compatibility

Tiffin motorhomes utilize specific chassis configurations. The DEF kit must match the exact tank depth and electronic network protocol used by the chassis manufacturer:

• PowerGlide® Chassis: Tiffin's proprietary custom chassis.

• Freightliner® Custom Chassis (XCR / XC Series)

• Spartan® Chassis

3. Technical Specifications to Verify Fitment

• Engine Fitment: Typically paired with Cummins® ISB 6.7L, ISC 8.3L, ISL/L9 8.9L, and ISX/X15 diesel engines.

• Header Height: Commonly measures 22 inches (or specific OEM depths like 19"). You must measure your physical tank or match the height exactly.

• Connector Type: Typically utilizes a Deutsch DT4 (4-pin) or digital CAN-bus connector.

• Common Part Numbers: 5126081 (Gen 6), 5023032, 5058500, 5094903.