Engine Code

Alfa Romeo AR67201 Engine (2021–2025) – Specs, Problems & Compatibility Database

The Alfa Romeo AR 67201 is a 1,995 cc, inline — four, turbocharged petrol engine produced between 2021 and 2025. It belongs to Alfa Romeo's FireFly engine family, featuring gasoline direct injection (GDI) and dual overhead camshafts (DOHC). In standard tune, it delivers 140 kW (190 PS) and 300 Nm of torque, with higher — output versions reaching 169 kW (230 PS) in performance trims.

Fitted to models such as the Giulia (952) and Stelvio (954), the AR 67201 was engineered for res

BMW N47D20A Engine
Compliance Note:

Production years 2021–2025 meet Euro 6d-TEMP emissions standards (VCA UK Type Approval #VCA/EMS/8901).

Alfa Romeo AR67201 Technical Specifications

The Alfa Romeo AR 67201 is a 1,995 cc inline-four turbocharged petrol engine designed for compact and mid-size applications (2021–2025). It combines gasoline direct injection with twin-scroll turbocharging to deliver strong mid-range power and responsive throttle delivery. Engineered to meet Euro 6d-TEMP standards, it balances urban drivability with performance-oriented characteristics.

ParameterValueSource
Displacement
1,995 cc
Fuel type
Petrol
Configuration
Inline-4, DOHC, 16-valve
Aspiration
Turbocharged (IHI twin-scroll)
Bore × stroke
88.3 mm × 81.3 mm
Power output
140–169 kW (190–230 PS) @ 5,750 rpm
Torque
300 Nm @ 2,500–4,500 rpm
Fuel system
Gasoline direct injection (GDI)
Emissions standard
Euro 6d-TEMP
Compression ratio
9.8:1
Cooling system
Water-cooled
Turbocharger
IHI IS2A-25GK-71.5
Timing system
Chain-driven (single-row)
Oil type
SAE 5W-40, ACEA A3/B4
Dry weight
134 kg

Alfa Romeo AR67201 Compatible Models

The Alfa Romeo AR 67201 was used across Alfa Romeo's 952/954 platforms with longitudinal mounting. This engine received platform-specific adaptations-tuned intake manifolds in the Giulia and revised exhaust routing in the Stelvio-and from 2023 received minor internal revisions to the intake manifold runner flap system, creating service part distinctions. All adaptations are documented in OEM technical bulletins.

Make:
Alfa Romeo
Years:
2021–2025
Models:
Giulia (952)
Variants:
2.0 Turbo, 190 HP / 230 HP
View Source
Alfa Romeo Group PT-2023
Make:
Alfa Romeo
Years:
2021–2025
Models:
Stelvio (954)
Variants:
2.0 Turbo, 190 HP / 230 HP
View Source
Alfa Romeo Group PT-2023

Common Reliability Issues - ALFA-ROMEO AR67201 Compatible Models

The AR 67201's primary reliability risk is intake manifold runner flap failure on early builds, with elevated incidence in mixed urban/highway driving. Internal Alfa Romeo quality reports from 2023 indicated a notable number of pre-2023 engines requiring intake system service before 80,000 km, while UK DVSA data shows ignition coil failures as a frequent cause of MOT emissions failures. Short trip driving and delayed maintenance increase thermal stress, making EGR system and oil quality adherence critical.

Intake manifold runner flap failure
Symptoms: Fluctuating idle, intake flutter noise, reduced power, DTCs related to airflow or manifold pressure.
Cause: Early-design polymer flaps prone to cracking under thermal cycling; exacerbated by high EGR flow and carbon buildup.
Fix: Replace intake manifold with updated OEM part per SIB 64/2022; clean EGR passages and verify actuator function.
Ignition coil carbon tracking
Symptoms: Misfires under load, rough idle, illuminated check engine light, increased hydrocarbon emissions.
Cause: Moisture and oil mist accumulation on coil boots leading to electrical tracking and insulation breakdown.
Fix: Replace affected ignition coils with revised OEM parts; apply dielectric grease and inspect valve cover gasket for leaks.
Timing chain tensioner wear
Symptoms: Rattle at cold start, timing-related DTCs, potential loss of compression if chain skips.
Cause: Plastic guide rails and tensioner shoes susceptible to wear over time, especially with extended oil intervals.
Fix: Inspect tensioner and guides during service; replace with updated components if wear is detected. Use correct oil spec.
Intake valve coking
Symptoms: Hesitation at low RPM, unstable idle, reduced throttle response, limp mode activation.
Cause: Direct injection leads to absence of fuel washing over intake valves, allowing carbon buildup from oil and combustion byproducts.
Fix: Perform walnut shell blasting of intake valves every 60,000 km; consider fuel additives and longer warm-up periods.
Research Basis

Analysis derived from Alfa Romeo technical bulletins (2021–2025) and UK DVSA failure statistics (2021–2023). Repair procedures should follow manufacturer guidelines.

ALFA-ROMEO AR67201 FAQ Common Questions Answered

The most common questions about engine codes, what they mean, how to find them and how this database works

The AR 67201 offers strong performance and responsiveness, but early models (2021–2022) had reliability concerns, particularly intake manifold runner flap failure. Later revisions (post-2023) improved flap durability, so well-maintained examples can be robust. Regular servicing and using high-quality oil (5W-40 ACEA A3/B4) significantly enhance longevity.

The most frequent issues include intake manifold runner flap failure, ignition coil carbon tracking, timing chain tensioner wear, and intake valve coking. These are documented in Alfa Romeo service information bulletins and supported by workshop repair data.

The AR 67201 was primarily used in the Alfa Romeo Giulia (952) and Stelvio (954) from 2021–2025, both in 2.0 Turbo 190 HP and 230 HP configurations. It was not used in other Fiat Group brands in European markets.

Yes. The AR 67201 responds well to ECU remapping, with stage 1 tunes typically adding +30–45 kW. The stock turbo and internals support moderate increases, but supporting mods (intercooler, exhaust) are recommended for higher power levels. Tuning should be performed by specialists familiar with Alfa Romeo engine management.

In combined driving, the AR 67201 achieves approximately 8.3 L/100 km (34 mpg UK) in the Giulia. Real-world consumption varies with driving style; aggressive use can exceed 10.5 L/100 km, while careful driving may achieve 7.2 L/100 km (39 mpg UK).

Yes. The AR 67201 is an interference engine. If the timing chain fails or skips, piston-to-valve contact is likely, resulting in severe internal damage. Proper maintenance and timely inspection of the chain system are essential to prevent costly repairs.

Alfa Romeo specifies SAE 5W-40 synthetic oil meeting ACEA A3/B4 standards. Oil changes should be performed every 15,000 km or annually to protect the turbocharger and timing system. Using incorrect oil can accelerate wear in high-temperature components.

Research Resources

Comprehensive technical documentation and regulatory references

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Transparency in Gaps

If a data point is not officially disclosed, it is marked 'Undisclosed'.

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EU regulations are referenced using CELEX identifiers for long-term stability.

Primary Sources

ALFA-ROMEO Official Site

Owner literature, service manuals, technical releases, and plant documentation.

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.

Regulatory Context

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.

Methodology

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Last Updated: 25 Feb 2026

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

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