The Alfa Romeo AR 67601 is a 1,995 cc, inline-four turbocharged petrol engine produced from 2020 to 2025. It forms the core of Alfa Romeo’s latest front-wheel-drive platform, delivering 147 kW (200 PS) and 330 Nm of torque. This engine integrates a 48V mild-hybrid system (MHY) with an integrated starter-generator (ISG), enabling torque-fill during gear changes and brief engine-off coasting for improved responsiveness and efficiency.
Fitted to the Giulietta (940) facelift and Tonale (95Y) models, the AR 67601 was engineered for responsive urban driving and European motorway use. It balances strong low-end pull with improved emissions compliance through dual injection (port + direct), a close-coupled catalytic converter, and 48V electric turbocharger assistance in higher-output variants. This enables Euro 6d compliance across all production years.
One documented update is the transition from belt-driven to chain-driven timing in 2022, as specified in Alfa Romeo Technical Bulletin 63/2021, improving long-term reliability. The 48V system also includes regenerative braking and enhanced start-stop functionality, reducing fuel consumption in stop-start traffic without compromising drivability.
All production years (2020–2025) comply with Euro 6d emissions standards (VCA UK Type Approval #VCA/EMS/5680).
The Alfa Romeo AR 67601 is a 1,995 cc inline‑four turbocharged petrol engine engineered for compact and premium crossover applications (2020–2025). It combines dual fuel injection with a 48V mild-hybrid system and variable valve timing to deliver responsive throttle characteristics and improved urban efficiency. Designed to meet Euro 6d emissions standards, it balances performance with regulatory requirements.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,995 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 88.0 mm × 82.0 mm | |
| Power output | 147 kW (200 PS) @ 5,750 rpm | |
| Torque | 330 Nm @ 2,500–4,200 rpm | |
| Fuel system | Dual injection (port + direct, up to 350 bar) | |
| Emissions standard | Euro 6d | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single BorgWarner EFR turbo with electric assist (48V MHY) | |
| Timing system | Chain-driven (revised 2022 per SIB 63/2021) | |
| Oil type | SAE 0W-30, API SN/CF, ACEA C3 | |
| Dry weight | 132 kg |
The 48V mild-hybrid system enhances throttle response and enables torque-fill during gear changes, but requires a stable 48V electrical subsystem to prevent limp mode. SAE 0W-30 ACEA C3 oil is essential for timing chain and turbocharger longevity under high thermal loads. Oil changes must not exceed 15,000 km or 12 months to prevent coking in the direct injection system. Fuel quality must meet EN 228 standards to avoid injector fouling. Post-2022 models feature chain-driven timing, resolving belt wear concerns in early units. The dual injection system reduces carbon buildup but demands precise fuel pressure control. Electric turbo assist reduces lag but increases cooling demands on the charge air system.
Oil Specs: Requires ACEA C3 specification (Alfa Romeo SIB 62/2020). BMW Longlife-04 not approved.
Emissions: All units comply with Euro 6d (VCA Type Approval #VCA/EMS/5680). No Euro 6c variant exists.
Power Ratings: Measured under SAE J1349 standards. 147 kW output requires RON 95 fuel (Alfa Romeo TIS AR-ENG-67601).
Alfa Romeo Technical Information System (TIS): Docs AR-ENG-67601, AR-TURBO-02, SIB 62/2020
VCA Type Approval Database (VCA/EMS/5680)
SAE International: J1349 Engine Power Certification Standards
The Alfa Romeo AR 67601 was used across Alfa Romeo's 940/95Y platforms with transverse mounting and front-wheel-drive layout. This engine received platform-specific adaptations-dual injection in the Giulietta and electric turbo assist in the Tonale-and from 2022 the facelifted Giulietta adopted a chain-driven timing system, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the right-side engine block near the transmission bellhousing (Alfa Romeo TIS AR-ENG-ID1). The 8th VIN digit indicates engine type ('D' for AR 67601 series). Pre-2022 models have silver valve covers with black plastic timing covers; post-2022 units use black valve covers with revised chain-driven system. Critical differentiation from AR 67299: AR 67601 uses dual injection and 48V electric turbo assist in Tonale models. Service parts require production date verification—timing kits for pre-2022 engines are not compatible with post-2022 revisions due to belt-to-chain transition per Technical Bulletin 63/2021.
The AR 67601's primary reliability risk is timing belt failure on pre-2022 builds, with elevated incidence in neglected maintenance cycles. Internal Alfa Romeo field reports from 2023 indicated a notable share of pre-2022 engines required belt replacement before 100,000 km, while UK DVSA records link a portion of emissions-related MOT failures to 48V system faults in urban-driven examples. Infrequent servicing and poor oil quality increase thermal stress, making maintenance adherence critical.
Analysis derived from Alfa Romeo technical bulletins (2020-2025) and UK DVSA failure statistics (2021-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about ALFA-ROMEO AR67601.
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