Bosch Lambda Probe Fiat Alfa Jeep 1.6 d

The oxygen sensor with original code FCA 55275928 is a key component for emission control and combustion management in diesel engines. Used on a wide range of FCA group vehicles, this sensor plays a central role in regulating the air-fuel mixture.

Technical specifications of oxygen sensor 55275928

This oxygen sensor belongs to the category of heated planar or wideband (broadband) sensors. Its main technical features include:

• Thread: M18×1.5
• Type: heated, with integrated heating element
• Number of pins: 5 or 6, depending on the variant and vehicle wiring
• Sensor type: wideband lambda sensor, particularly suitable for modern diesel engines
• Cable length: variable, usually between 275 mm and 720 mm
• Connection: oval or D-type multi-pin connector

Applications on cars and engines

Alfa Romeo

• Giulietta

Fiat

• 500L
• 500X
• Doblò 
• Tipo — SW and three-box (sedan) body styles

Jeep

• Renegade 1.6

DIPA suggests to always carefully check the spare part code against the vehicle identification number (VIN).

Typical faults

• Engine warning light (MIL) illumination
• Increased fuel consumption
• Reduced performance
• Elevated emissions
• Unusual exhaust odor
• Irregular idle

Possible causes

• Contamination from oil or additives
• Damage to the protective coating
• Wiring or connector problems
• Wear of the heating element
• Sensor breakage due to thermal shock or vibrations

Conclusions

DIPA supplies components in new, original and equivalent-quality aftermarket versions, ready for installation, with warranty and compatibility across all affected models. Ask about the availability of parts in stock for quick replacements and reduced vehicle downtime.