Honda Prelude III (1987–1991): A legendary sports coupé and pioneer of mechanical 4WS

Honda Prelude III – a true icon of the late 1980s

The third-generation Honda Prelude, produced between 1987 and 1991 (chassis codes BA4 / BA5), is widely regarded as one of the most advanced and best-handling sports coupés of its time. Combining reliability, sharp design and cutting-edge engineering, the Prelude III quickly became a benchmark among Japanese performance cars.

This generation made history with its innovative 4WS (Four-Wheel Steering) system, which dramatically improved manoeuvrability at low speeds and stability during high-speed cornering. Even today, the mechanical 4WS system is praised for its precision and engineering ingenuity.

Design and bodywork of the Prelude III

The Prelude III was sold exclusively as a 2-door coupé. Its wedge-shaped silhouette, pop-up headlights and low bonnet line created one of the purest aerodynamic designs of the late 1980s. The proportions and balance of the chassis remain highly appreciated by enthusiasts to this day.

• BA4 / BA5 coupé: low centre of gravity and excellent weight distribution for sporty driving.
• 4WS versions: unmatched agility and stability thanks to mechanical rear-wheel steering.

Correct engine specification – B20A and B21A

The third-generation Prelude used engines exclusively from the B20A and B21A families. These four-cylinder units were offered in SOHC and DOHC versions depending on market (USDM / EDM / JDM) and equipment level.

Engines in Prelude III (1987–1991):

• B20A3 – 2.0 SOHC, approx. 109–114 PS (carburettor or early injection, depending on version)
• B20A5 – 2.0 DOHC, approx. 135–150 PS (most common in Europe, responsive and durable)
• B20A7 / B20A8 – variations for JDM/EDM with different emissions and ECU tuning
• B21A1 – 2.1 DOHC, approx. 140–150 PS (high-spec U.S. model)

These engines are known today for their reliability, smoothness and good potential for performance upgrades, especially the DOHC variants.

Interesting facts about the Prelude III

• It was one of the best-handling sports coupés of the late 1980s.
• The mechanical 4WS system remains one of the most precise rear-steer designs ever produced.
• The Prelude III was frequently compared to Porsche 944 and BMW E30 in period reviews — and often won on handling.
• The B20A engine sits at a slight tilt, improving bonnet line and lowering the centre of gravity.
• JDM versions had different ECU maps, exhaust manifolds and more aggressive timing.

Common issues and age-related maintenance

• 4WS system: worn mechanical components or lines; rebuilds are usually successful.
• Suspension: bushings, ball joints and dampers almost always require replacement due to age.
• Cooling system: water pumps and thermostats should be renewed preventively.
• B20A/B21A engines: require a healthy PCV system and regular oil checks.
• Oil seals: crank and cam seals often leak after 30+ years – replacement is recommended.

Most popular replacement parts for Honda Prelude III

• suspension bushings and control arms,
• brake pads and discs,
• Aisin water pumps,
• NOK engine and gearbox seals,
• wheel bearings (NTN / Koyo),
• air, oil and fuel filters (Mahle, MANN, Honda OEM),
• NGK / Denso spark plugs for B20A/B21A,
• timing belts and tensioners.

jdmshop.eu provides both genuine Honda OEM parts and premium aftermarket replacements specifically matched to the Prelude III.

FAQ – Honda Prelude III (1987–1991)

Do parts from the 4th or 5th generation fit the Prelude III?

In most cases no — engines, suspension geometry and many components are completely different.

Can the 4WS system still be repaired?

Yes. In many cases a rebuild or replacement of mechanical linkages and lines fully restores functionality.

Which engine is the most reliable?

The B20A5 is considered the most durable when properly maintained.

Is the B20A good for tuning?

Yes — the DOHC variants respond well to intake, exhaust, ECU and suspension upgrades.

Are OEM parts still available?

Many OEM parts are still in production or available as NOS, and rare items can be sourced individually.