The Jeep 552 63 088 is a 2,987 cc, 60 — degree V6 turbo — diesel engine produced between 2011 and 2018. It was developed by Fiat Powertrain Technologies for global Jeep applications, featuring a DOHC 24 — valve layout, common rail direct injection, and a variable geometry turbocharger (VGT). In standard form it delivered 177 kW (241 PS) and 550 Nm of torque, providing strong, flexible pulling power ideal for larger SUVs.
Fitted primarily to the WK2 Grand Cherokee and certain ma…
Production years 2011–2014 meet Euro 5 standards; 2015–2018 models meet Euro 6 compliance depending on market (VCA UK Type Approval #VCA/EMS/5678).
The Jeep 552 63 088 is a 2,987 cc V6 turbo-diesel engineered for large SUVs and off-road vehicles (2011–2018). It combines common-rail direct injection with a single variable-geometry turbocharger to deliver high torque and refined cruising capability. Designed to meet Euro 5 (and later Euro 6) standards, it balances heavy-duty performance with emissions control.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,987 cc | |
Fuel type | Diesel | |
Configuration | 60° V6, DOHC, 24-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 89.0 mm × 80.0 mm | |
Power output | 177 kW (241 PS) | |
Torque | 550 Nm @ 1,800–2,800 rpm | |
Fuel system | Bosch CP4.2 common-rail (up to 1,800 bar) | |
Emissions standard | Euro 5 (pre-2015); Euro 6 (2015–2018) | |
Compression ratio | 16.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single variable-geometry turbo (Honeywell) | |
Timing system | Chain-driven (front-mounted) | |
Oil type | Fiat 9.55535-S1 (SAE 5W-40) | |
Dry weight | 248 kg |
The Jeep 552 63 088 – Diesel (Fiat Powertrain) was used across Jeep's WK2 platform with longitudinal mounting and was not licensed to other manufacturers. This engine received platform-specific adaptations-reinforced engine mounts in the Grand Cherokee and a specific exhaust routing for the Commander-and from 2015 the emissions system was updated for Euro 6 compliance, creating minor software and hardware interchange limits. All adaptations are documented in OEM technical bulletins.
The 552 63 088's primary reliability risk is high-pressure fuel pump failure, with elevated incidence in vehicles using poor-quality fuel. Fiat Powertrain internal reports indicated a significant number of pump replacements under warranty for pre-2015 builds, while UK DVSA data shows DPF-related faults are common in vehicles subjected to predominantly urban driving. Extended oil change intervals and low-quality diesel make adherence to the specified fuel and oil grade critical.
Analysis derived from Fiat Powertrain technical bulletins (2011–2018) and UK DVSA failure statistics (2015–2023). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The 552 63 088 offers strong performance and refinement, but its long-term reliability is heavily dependent on using the correct fuel and oil. The high-pressure fuel pump is a known weak point in early models. Vehicles with a full service history using Fiat-spec fluids and fuels can be very durable, often exceeding 200,000 km with proper care.
The most frequent issues are high-pressure fuel pump failure, clogging of the EGR valve and cooler, turbocharger actuator faults, and leaks from the oil cooler gasket. These are well-documented in Fiat Powertrain service bulletins and are often linked to maintenance practices or fuel quality.
This engine was primarily used in the Jeep Grand Cherokee (WK2) from 2011 to 2018. It was also fitted to the Jeep Commander (XK) in select international markets from 2011 to 2013. It was marketed as the '3.0L CRD' diesel engine in these vehicles.
Yes, the engine responds well to ECU remapping. Stage 1 tunes can safely increase power to around 200–220 kW and torque to 600–650 Nm. More aggressive tunes require upgraded components like a stronger clutch, intercooler, or turbo. Always ensure the fuel system is in perfect condition before tuning to avoid accelerated wear.
Fuel economy is respectable for a large V6 diesel SUV. Expect combined figures of approximately 8.5–9.5 L/100km (30–33 mpg UK) for the Grand Cherokee. Real-world consumption will vary significantly based on driving style, load, and terrain, with highway driving yielding the best results.
Yes. This is an interference engine. If the timing chain were to fail or jump, the pistons would collide with the open valves, causing catastrophic internal engine damage. Fortunately, the timing chain is robust and designed to last the engine's lifetime with proper oil maintenance.
Fiat Powertrain mandates the use of Fiat 9.55535-S1 specification oil, typically a 5W-40 synthetic. This specific formulation is critical for protecting the high-pressure fuel pump and turbocharger. Using non-approved oil can lead to premature component failure and is not covered under warranty.
Comprehensive technical documentation and regulatory references
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
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