Porsche Cayenne 957 958 3.6 M55.1 Engine - Genuine Used Car Part

Diagnosis and Common Symptoms

From a technical standpoint, the M55.1 3.6L power unit is a robust evolution of the VR6 architecture, yet it remains susceptible to specific mechanical fatigue over high mileage. If your Cayenne is exhibiting a persistent "Check Engine" light accompanied by Diagnostic Trouble Codes (DTC) P0016 or P0011, you are likely facing timing chain elongation or camshaft correlation issues. Physical symptoms often include a heavy rattling sound upon cold starts, unstable idling, or a significant loss of torque in the mid-range. Furthermore, if you observe P0300 through P0306 codes that do not resolve with new ignition coils, internal compression loss or carbon buildup on the intake valves may be the culprit. Replacing the long block with a verified unit is often more cost-effective than a complete bottom-end rebuild.

Introduction

This is a Genuine Porsche M55.1 3.6L V6 engine assembly, salvaged from a donor vehicle and subjected to rigorous multi-point mechanical inspection. As an Original component, it maintains the factory tolerances and metallurgical integrity required for the 957 and 958 chassis. Every unit we stock has been tested under load to ensure optimal oil pressure and compression across all six cylinders.

Product Details

• Brand: Porsche
• Model Compatibility: Cayenne 957 (2007–2010), Cayenne 958.1 (2011–2014)
• Part Name: M55.1 3.6L V6 Engine Assembly
• Condition: Genuine Used (Tested Working)
• Notes: This is a bare long block assembly; existing intake manifolds and accessories should be transferred. We recommend replacing the rear main seal and timing chain guides prior to installation as a preventative measure.