The Ultimate Guide to 1989 Porsche 911 Speedster Parts

The 1989 Porsche 911 Speedster is one of the most collectible air-cooled 911s, with only 2,104 units built. Whether you're restoring a barn find or maintaining a pristine example, finding the correct parts requires knowledge of the model's unique specifications. This guide covers everything from body panels to mechanical components, helping you make informed decisions without overpaying or settling for wrong-fit parts.

Understanding the 1989 Speedster's Uniqueness

The Speedster is based on the 911 Carrera 3.2, but it has distinct differences. Most notably, the low-profile windshield, side windows, and top assembly are shared only with the 1989 model year. The interior features lightweight bucket seats, a shorter gear lever, and distinctive Speedster badging. Many parts are interchangeable with the standard Carrera, but key items are model-specific.

Engine and Drivetrain Parts

The 3.2-liter flat-six (930/20 engine) is identical to the Carrera's, so most engine parts are readily available. However, the Speedster uses a specific oil cooler setup due to the lower roofline. When sourcing engine components:

• Cylinder heads and pistons: Same as 1987-1989 Carrera 3.2. Use OEM or reputable aftermarket like JE or Mahle.
• Exhaust system: The Speedster exhaust manifolds are unique to clear the chassis brace. Aftermarket options from Fabspeed or Dansk are good alternatives.
• Clutch and flywheel: Standard 915 transmission parts fit, but consider a lightweight flywheel for quicker revs.

Transmission and Suspension

The G50 gearbox was standard on the 1989 Speedster. Parts like synchros, bearings, and shift rods are shared with other G50 911s. Suspension is Carrera-based, but the Speedster has slightly stiffer springs and unique front sway bar mounts. For restoration, Bilstein or Koni shocks are preferred. Bushings from Elephant Racing or Wevo improve handling without altering originality.

Exterior Body and Trim Parts

This is where Speedster parts get tricky. Many panels are one-year-only or shared only with the targa.

Unique Body Panels

• Front fenders and hood: Same as 1987-1989 Carrera. No issues sourcing.
• Doors: Same as coupe and targa, but the window regulators and seals are specific to the low-profile glass. Pelican Parts and Porsche Classic offer replacements.
• Rear deck lid: Speedster-specific with a distinct spoiler lip. Reproduction fiberglass lids are available from companies like Getty Design.
• Front and rear bumpers: Identical to Carrera. The rubber trim is still available from Porsche.

Glass and Seals

The windshield is unique and expensive. New old stock (NOS) is rare; aftermarket from Pilkington exists but requires careful fitment. The side window frames and seals are also Speedster-specific. Use OEM seals from Porsche Classic or aftermarket from AIC (Auto International Car Parts).

Top and Tonneau Cover

The convertible top frame and canvas are model-specific. Replacement tops are available from GAHH, EZ-ON, and Robbins. A proper fit requires professional installation. The tonneau cover (boot cover) is also unique; used examples often have cracked fiberglass. Reproductions are available from several suppliers.

Interior Parts

Seats and Upholstery

Speedsters left the factory with either standard Carrera seats or optional sport seats. The unique "Speedster" script on the seats is often missing on restorations. Correct leather kits from Autos International or Classic 9 Leather are recommended. Door panels are same as coupe but with different map pockets.

Dash and Instrumentation

The dashboard is standard Carrera. Gauges are the same, but the Speedster has a specific tachometer with a redline at 6400 rpm. If restoring, send gauges to North Hollywood Speedometer for recalibration. The steering wheel is the standard MOMO three-spoke; period-correct replacements are available.

Carpet and Mats

Carpet sets are same as Carrera coupe. German square weave is correct. Avoid cheap molded carpets; opt for wool blend from Auto Custom Carpets.

Electrical and Lighting Parts

Most electrical components are shared with the Carrera. The Speedster has a unique wiring harness for the top motor and switches. Used harnesses can be brittle; reproduction harnesses are not widely available. Individual connectors and relays are available from Bosch or Porsche.

• Headlights: H4 units same as Carrera. Replace with Hella or Bosch.
• Tail lights: Same as 1986-1989 Carrera.
• Turn signals: Unique to Speedster? Actually they are standard for 1989 Carrera.

Where to Buy Parts

• Porsche Classic: Official source for many NOS and reproduction parts. Expect higher prices but guaranteed fit.
• Pelican Parts: Extensive catalog with OEM and aftermarket. Good for engine, suspension, and brake parts.
• EBS Racing: Specializes in air-cooled 911 parts, including rare Speedster items.
• Restoration Design: Focus on body panels and interior trim. They reproduce many hard-to-find pieces.
• Sierra Madre Collection: Good source for German-made rubber seals and weatherstripping.

Budget Considerations

A full restoration of a 1989 Speedster can cost $50,000-$100,000, with parts being the largest expense. Prioritize structural items (floor pans, suspension) over cosmetics. For a driver-quality car, aftermarket parts are fine; for concours, invest in OEM or period-correct reproductions.

Final Recommendations

1. Start with a thorough inspection: Identify which parts are original and which need replacement. Use the VIN to confirm build spec.
2. Buy new or used? For mechanicals, always buy new. For body parts, NOS is preferred but expensive. Used panels often require repair.
3. Join the community: The 911 Speedster Registry and Pelican Parts forums are invaluable for sourcing rare parts.
4. Don't skimp on rubber: Door seals, window channel seals, and top seals degrade over time. Use proper materials to avoid leaks.
5. Consider a parts consultant: Companies like The Artful Dodger specialize in sourcing Speedster-specific parts.

By focusing on correct fitment and authenticity, your 1989 Porsche 911 Speedster will remain a joy to drive and a sound investment.