ALFA ROMEO 33 905 AR30588 Engine.

Alfa Romeo AR30588 1.5L Petrol Engine.

High-Quality Used Engine for Sale.

The Alfa Romeo AR30588 1.5L petrol engine is a classic, lightweight, and naturally aspirated four-cylinder power plant known for its responsive performance and charming mechanical character. 

Designed for spirited driving, this boxer-style engine (horizontally opposed layout) delivers smooth power delivery, reduced vibration, and exceptional balance, making it a popular choice among Alfa Romeo enthusiasts restoring or upgrading older models. 

If you’re looking for a clean, reliable replacement engine with authentic driving feel, the AR30588 is one of the most desirable units from Alfa Romeo’s legendary engineering era.

This engine is primarily compatible with the Alfa Romeo 33 (Series I & II) and also interchanges with certain variants of the Alfasud and Sprint platforms where the 1.5-liter boxer engine was used. Its compact design and low center of gravity make it suitable for rebuild projects, engine swaps within Alfa’s boxer chassis line, and restorations that require authenticity and reliability. 

Buyers across Europe, Southern Africa, and international markets continue to seek this unit due to its simplicity, robust mechanical design, and strong aftermarket support.

 Specifications, Common weaknesses and Maintenance.

The AR30588 features an approximate 1.5-liter displacement, 8-valve configuration, wet-sump lubrication, carbureted fuel system (depending on version), and an output ranging from 85 to 105 horsepower depending on model variant. It is built to deliver lively performance at higher revs while maintaining efficient daily driving characteristics. 

Its straightforward mechanical layout allows for easier servicing, tune-ups, and cost-effective maintenance compared to modern engines.

Common weaknesses are primarily age-related rather than design failures. Owners should be aware of carburetor tuning issues, oil leaks from gaskets, timing belt wear, and exhaust manifold corrosion—typical concerns for classic Alfa boxer engines. Regular belt replacement, proper carburetor synchronization, and consistent oil changes dramatically extend engine lifespan. Ensuring proper cooling system maintenance is also crucial for preventing overheating, especially in older vehicles.

Whether you’re restoring an Alfa Romeo 33 to factory condition or looking for a lightweight classic performance engine, the Alfa Romeo AR30588 1.5L remains a proven and enthusiast-trusted choice. Our units are quality-tested, compression-checked, and ready for installation, offering exceptional value for anyone seeking authentic Alfa performance and long-term dependability.