The Jeep ERM – Petrol (Flex — Fuel) (FCA) is a 3,239 cc, V6 naturally aspirated engine produced between 2018 and 2023. It features port fuel injection, dual overhead camshafts (DOHC), and a variable intake manifold. This unit delivers 200 kW (271 PS) and 325 Nm of torque, engineered for smooth, linear power delivery across its rev range.
Fitted primarily to the Cherokee (KL) and Grand Cherokee (WK2), the ERM was designed for drivers seeking refined performance and towing cap…
Production years 2018–2023 meet Euro 6d-TEMP standards .
The Jeep ERM – Petrol (Flex-Fuel) (FCA) is a 3,239 cc V6 naturally aspirated engine engineered for mid-size and large SUVs (2018-2023). It combines port fuel injection with a variable intake manifold to deliver smooth, linear power and strong low-end torque. Designed to meet Euro 6d-TEMP standards, it balances refined performance with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 3,239 cc | |
Fuel type | Petrol (Flex-Fuel capable) | |
Configuration | V6, DOHC, 24‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 94.0 mm × 77.5 mm | |
Power output | 200 kW (271 PS) | |
Torque | 325 Nm @ 4,250 rpm | |
Fuel system | Port fuel injection (Multi-Point) | |
Emissions standard | Euro 6d‑TEMP | |
Compression ratio | 10.8:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain‑driven | |
Oil type | FCA MS‑12991 (SAE 5W‑30) | |
Dry weight | 170 kg |
The Jeep ERM – Petrol (Flex-Fuel) (FCA) was used across Jeep's KL and WK2 platforms with transverse mounting. This engine received platform-specific adaptations-reinforced mounts for the Grand Cherokee-with no major facelift revisions affecting core compatibility. All adaptations are documented in OEM technical bulletins.
Engine Finders UK Ltd, which operates EngineCode.uk, can pass your enquiry to engine suppliers in the UK. The service is for vehicles in the United Kingdom, with UK delivery or fitting. This is a commercially connected service, and sending an enquiry does not confirm diagnosis or compatibility.
Diagnostic reminder: If a technician has recommended replacing the engine, you can send an enquiry to engine suppliers in the UK. Confirm the diagnosis first: an engine-code record does not diagnose a fault.
Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. 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 ERM offers smooth, refined performance and good towing capability, but its long-term reliability hinges on addressing the known intake manifold actuator issue. Key concerns are the actuator (especially pre-2021) and water pump, both sensitive to maintenance. Using premium fuel (95 RON) and changing the oil on schedule greatly improves longevity. Later models (post-2021) have addressed the actuator design flaw.
The most frequent issues are variable intake manifold actuator failures, coolant leaks from the water pump, oil leaks from valve cover gaskets, and PCV system clogging. These are well-documented in FCA service bulletins, particularly SIB 09-015-20 for the intake manifold actuator.
This 3.2L V6 petrol engine was used in the Jeep Cherokee (KL) and Jeep Grand Cherokee (WK2) from 2018 to 2023. It was typically badged as '3.2L V6'. It was not used in the Renegade, Compass, or Wrangler.
Aftermarket ECU tuning is common on the ERM platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Official combined figures are around 10.5 L/100km (27 mpg UK) for the Cherokee and 11.2 L/100km (25 mpg UK) for the Grand Cherokee. Real-world economy varies: expect 22-28 mpg UK in mixed driving, heavily influenced by driving style, vehicle load, and terrain. Flex-fuel operation on E85 will reduce economy by approximately 25-30%.
Yes. The ERM is an interference engine. If the timing chain fails or jumps, the pistons will collide with the open valves, causing catastrophic engine damage. Fortunately, the chain is designed to be very durable and is not a common failure point.
FCA mandates oil meeting their MS-12991 specification, typically a 5W-30 full synthetic. Using the correct oil is crucial for the variable valve timing system's longevity and overall engine protection. Change intervals should not exceed 15,000 km or 12 months.
Comprehensive technical documentation and regulatory references
EngineCode.uk is operated by Engine Finders UK Ltd. It provides engine-reference information and an optional commercial enquiry service. It is not an official manufacturer website. Check the record's sources and confirm vehicle-specific details before relying on it for parts, repairs or replacement.
Our editorial standard prioritises relevant manufacturer documentation and official regulatory sources. The sources and verification status for a record should be checked alongside the data.
A statement is not verified merely because a source is listed. Where supporting evidence is missing or conflicting, the record should identify that limitation. Please report unsupported or inconsistent information.
Transparency in gaps
A missing or unverified value does not mean the manufacturer has withheld it. We distinguish information not yet verified, information not available to us, and information explicitly not disclosed by the source.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
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.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
Records are subject to review and correction. Source links, dates and verification notes should be read with the technical information. Our Editorial and Sourcing Policy explains our standards and review process.
Found an error or missing source? Report a problem with this page. Include the field or statement concerned and a supporting source if available. You can also email corrections@enginecode.uk.
Copyright and permissions
Images and other material may be protected by copyright. Attribution does not by itself grant permission to reuse material. If you believe material on this site infringes your rights, contact copyrights@enginecode.uk with the page URL and details of your claim. We will review the material and take appropriate action.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
Our Privacy Policy explains how Engine Finders UK Ltd uses information from visits, vehicle lookups, enquiries and messages. Our Cookie Policy explains cookies and similar technologies and how to change your choices.
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
Ownership and commercial services
EngineCode.uk is owned and operated by Engine Finders UK Ltd. Alongside our reference content, we offer an optional replacement-engine enquiry service through Engine Finders and may identify relevant services provided by businesses connected with us. These commercial connections are disclosed. Using an enquiry service is not required to read our reference content.
Engine Finders UK Ltd operates this website. Our optional enquiry service has a commercial purpose. Our Ownership and Commercial Disclosure explains the relationship between the reference website and that service. Participating suppliers pay a fee or subscription to participate on the network and receive quote requests.
Use this record as a starting point for identification. Specifications and vehicle applications may contain errors or omissions. Confirm the exact engine variant and compatibility using vehicle-specific documentation and a qualified supplier or technician.
All external links open in new tabs. Please verify current availability of resources.