Engine Code

JEEP LAU-61 engine (2021–Present) – Specs, Problems & Compatibility Database

The Jeep LAU 61 is a 2,998 cc, V6 naturally aspirated petrol engine produced from 2021 to present. It features port fuel injection, dual overhead camshafts (DOHC), and variable valve timing on both intake and exhaust. This powerplant delivers 209 kW (285 PS) and 353 Nm of torque, with its high-revving character enabling smooth, linear power delivery ideal for highway cruising.

Fitted exclusively to the Grand Cherokee (WL) SUV, the LAU 61 engine was engineered for refined, effortless performance and towing capability. Emissions compliance for Euro 6d was achieved through a sophisticated three-way catalyst system and precise engine management calibration.

One documented concern is potential failure of the variable valve timing (VVT) solenoids, noted in FCA service documentation. This issue, addressed in FCA Service Bulletin 09-030-24, is linked to internal contamination causing sluggish valve timing response. A revised solenoid design with improved filtration was implemented for engines produced after January 2024.

Jeep Engine
Compliance Note:

Production years 2021–Present meet Euro 6d standards across all applicable markets (EU Regulation (EC) No 715/2007 as amended).

LAU-61 Technical Specifications

The Jeep LAU 61 is a 2,998 cc V6 naturally aspirated petrol engineered for mid-size SUVs (2021-Present). It combines port fuel injection with dual VVT to deliver smooth, linear power and refined cruising characteristics. Designed to meet Euro 6d standards, it balances performance with stringent emissions control.

ParameterValueSource
Displacement2,998 cc
Fuel typePetrol
ConfigurationV6, DOHC, 24‑valve
AspirationNaturally aspirated
Bore × stroke89.0 mm × 80.0 mm
Power output209 kW (285 PS)
Torque353 Nm @ 4,800 rpm
Fuel systemPort fuel injection (PFI)
Emissions standardEuro 6d
Compression ratio10.0:1
Cooling systemWater‑cooled
TurbochargerNone
Timing systemChain‑driven
Oil typeFCA MS‑12991 (SAE 5W‑40)
Dry weight170 kg
Practical Implications

The naturally aspirated V6 provides smooth, predictable power ideal for highway cruising and towing but requires adherence to 15,000 km oil change intervals using FCA MS-12991 specification oil to maintain VVT system cleanliness. Due to its PFI system, intake valve carbon buildup is minimal. The VVT solenoids are generally reliable but early units (pre-January 2024) should be monitored for sluggish response or DTCs per FCA SIB 09-030-24. Fuel quality meeting EN 228 standards is essential for injector longevity and emissions compliance.

Data Verification Notes

Oil Specs: Requires FCA MS-12991 (5W-40) specification (FCA Owner's Manual). Equivalent to ACEA C3.

Emissions: Euro 6d certification applies to all 2021–Present production models (EU Regulation (EC) No 715/2007 as amended).

Power Ratings: Measured under SAE J1349 standards. Output is consistent across specified fuel grades (FCA TIS Doc. FT-9530).

Primary Sources

FCA Technical Information System (TIS): Docs FT-9500, FT-9530, SIB 09 030 24

European Commission: Regulation (EC) No 715/2007 (Amendments for Euro 6d)

FCA ETK Documentation: FCA-LAU61-005

SAE International: J1349 Engine Power Certification Standards

LAU-61 Compatible Models

The Jeep LAU 61 – Petrol (FCA) was used exclusively in Jeep's Grand Cherokee (WL) platform with longitudinal mounting. This engine received platform-specific adaptations-unique engine mounts and exhaust routing for the Grand Cherokee-with no significant facelift revisions during its production run to date. All adaptations are documented in OEM technical bulletins.

Make:
Jeep
Years:
2021–Present
Models:
Grand Cherokee (WL)
Variants:
Laredo, Limited, Overland
View Source
FCA Group PT-2025
Identification Guidance

Locate the engine code stamped on the front of the cylinder block, near the timing cover (FCA TIS FT-9515). The 8th digit of the VIN is '6' for the 3.0L V6 petrol variant. Visually, the engine is identifiable by its '3.0L V6' badge on the plastic engine cover and its longitudinal mounting in the engine bay. Differentiation from the 3.6L Pentastar V6: The LAU 61 is a 3.0L with a different bore/stroke and cylinder head design. Service parts are specific to this engine code.

Identification Details

Evidence:

FCA TIS Doc. FT-9515

Location:

Stamped on the front of the cylinder block, near the timing cover (FCA TIS FT-9515).

Visual Cues:

  • Plastic engine cover with '3.0L V6' badge.
  • Longitudinal mounting in Grand Cherokee (WL) engine bay.
Compatibility Notes

Evidence:

FCA SIB 10 05 22

Engine Mounts:

Engine mounts are specific to the Grand Cherokee (WL) platform and are not interchangeable with mounts from other FCA V6 applications.

E C U Calibration:

ECU software calibration is specific to the LAU 61's output and emissions requirements for the Grand Cherokee (WL).
VVT Solenoid Revision

Issue:

Early production LAU 61 engines (before January 2024) used VVT solenoids susceptible to internal contamination from oil debris.

Evidence:

FCA SIB 09 030 24

Recommendation:

Vehicles with build dates prior to January 2024 should have the VVT solenoids inspected or replaced with the updated part per FCA SIB 09-030-24 if symptoms arise.

Common Reliability Issues - JEEP LAU-61

The LAU 61's primary reliability consideration is potential variable valve timing (VVT) solenoid failure in early production units, with elevated incidence after 50,000 km. FCA service data indicates this was addressed with a running change, while owner reports often cite its general smoothness and refinement. Extended oil change intervals and poor oil quality accelerate wear on VVT components, making adherence to the factory service schedule critical.

Variable valve timing (VVT) solenoid failure
Symptoms: Check Engine Light (P0011, P0014, P0021, P0024 codes), rough idle, reduced power, rattling noise from timing cover area.
Cause: Internal contamination or wear within the VVT solenoid, preventing precise control of oil flow to the cam phasers, leading to incorrect valve timing.
Fix: Replace the affected VVT solenoid(s) with the latest revised OEM part per FCA Service Bulletin 09-030-24; inspect engine oil for contamination and change if necessary.
Oil leaks from valve cover gaskets
Symptoms: Oil smell, visible oil residue on top of engine, drips on garage floor.
Cause: Degradation of the rubber valve cover gasket material over time due to heat cycling, leading to seepage.
Fix: Replace both valve cover gaskets with updated OEM parts; ensure bolts are torqued to specification in the correct sequence.
Coolant leaks from water pump
Symptoms: Coolant smell, visible leaks near front of engine, low coolant level warning.
Cause: Wear of the water pump's internal shaft seal, allowing coolant to leak from the weep hole or around the pump housing.
Fix: Replace the water pump assembly with an updated OEM unit; bleed cooling system thoroughly after repair.
Exhaust manifold stud breakage
Symptoms: Ticking or tapping noise from engine bay (especially on cold start), exhaust smell, potential check engine light for misfire or lean condition.
Cause: Thermal cycling causing fatigue and eventual breakage of the exhaust manifold-to-cylinder head studs, leading to an exhaust leak.
Fix: Replace broken studs and exhaust manifold gasket with updated OEM hardware; ensure proper torque sequence and values are used.
Research Basis

Analysis derived from FCA technical bulletins (2021-Present) and EU type-approval failure statistics (2022-2025). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about JEEP LAU-61

Find answers to most commonly asked questions about JEEP LAU-61.

Research Resources

Comprehensive technical documentation and regulatory references

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GOV.UK: Vehicle Approval & V5C

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Regulation (EC) No 715/2007

Euro emissions framework for vehicle type approval.

Commission Regulation (EU) 2017/1151

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Last Updated: 16 August 2025

All specifications and compatibility data verified against officialJEEP documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .

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