Eleven Parts Steering Gear for Porsche: A Complete Buyer's Guide

If you're restoring or upgrading a Porsche and need a reliable steering gear, Eleven Parts has become a notable name among enthusiasts. This guide covers everything you need to know about Eleven Parts steering gear for Porsche vehicles—what it is, which models it fits, key features, installation considerations, and how to make an informed purchase. Whether you're a weekend mechanic or working with a shop, this information will help you decide if Eleven Parts is the right choice for your project.

What Is Eleven Parts Steering Gear?

Eleven Parts is a brand that specializes in producing replacement steering components, including steering gears (also called steering boxes or steering racks depending on the model) for classic and modern Porsches. Their steering gear units are designed to meet or exceed OEM specifications, offering a direct fit for many popular Porsche chassis. The company focuses on durability and precise steering response, making their parts a popular alternative to factory units, especially for cars where original parts are no longer available or are prohibitively expensive.

Porsche Models Compatible with Eleven Parts Steering Gear

Eleven Parts steering gears are commonly available for several Porsche models, with the most extensive coverage for air-cooled and early water-cooled cars. Before purchasing, always verify your specific model year and chassis number.

911 (1965–1989)

• 901/911 series: Early 911s (up to 1973) use a steering box, while later 911s (1974–1989) transitioned to a steering rack. Eleven Parts offers both types. For early cars, their steering boxes are known for eliminating slop and providing a tighter feel. For later models with racks, they offer units that match factory geometry.
• 964 and 993: These generations (1989–1998) use a steering rack. Eleven Parts provides replacement racks that are often upgraded with stronger internals for better longevity.

914 (1970–1976)

• The 914 uses a steering rack. Eleven Parts racks are a common upgrade because original racks can wear out. Their units are built to restore original handling.

924, 944, 968 (1976–1995)

• These transaxle Porsches use a steering rack. Eleven Parts racks are available for most models, including the 944 Turbo. They offer both standard and power steering versions.

928 (1978–1995)

• The 928 uses a recirculating-ball steering gear, not a rack. Eleven Parts produces replacement steering boxes for the 928, which are sought after due to limited OEM availability.

Boxster and Cayman (986, 987, 981)

• Some early Boxsters (986) use a steering rack that Eleven Parts can supply. Always check compatibility with your chassis number.

Key Features of Eleven Parts Steering Gear

When comparing Eleven Parts steering gears to other aftermarket or OEM units, several features stand out:

Precision Manufacturing

Eleven Parts uses modern CNC machining and quality control processes. The gears are machined from high-grade materials, ensuring consistent tolerances. This translates to a steering feel that is crisp and free of dead spots.

Direct Fit Design

Each unit is designed to bolt in without modifications. They come with the correct mounting points, input shaft splines, and fluid connections (for power steering models). This saves time and eliminates guesswork during installation.

Upgraded Internals

Many Eleven Parts steering gears use reinforced internal components, such as stronger gears, bearings, and seals. This increases durability, especially for cars that see track use or higher mileage. Some units feature a tighter ratio for quicker steering response.

Rebuilt vs. New Options

Eleven Parts offers both new-manufacture units and professionally rebuilt units. Rebuilt units are based on original cores and are thoroughly inspected, while new units are built from scratch. Both are reliable, but new units may be preferred when original cores are scarce.

Choosing Between Eleven Parts and Other Brands

The main alternatives to Eleven Parts are OEM Porsche, ZF (original equipment manufacturer for many Porsche steering racks), and other aftermarket brands like Karlyn or Lemförder. Here's how Eleven Parts compares:

• Price: Eleven Parts is typically less expensive than new OEM but comparable to quality aftermarket brands. Rebuilt units offer even greater savings.
• Availability: Eleven Parts often has stock for models where OEM parts are backordered or discontinued.
• Quality: They are known for good quality control, though some enthusiasts prefer OEM for absolute factory correctness on concours restorations. For driver cars and performance upgrades, Eleven Parts is a solid choice.
• Warranty: Most Eleven Parts units come with a limited warranty. Check the specific listing for warranty length and coverage.

Installation Tips for Eleven Parts Steering Gear

Installing a steering gear requires mechanical skill. If you're not experienced, consider professional installation. Here are key points:

Preparation

• Safely raise the vehicle: Use jack stands on level ground. For rear-engine Porsches, the front is lighter, so be cautious.
• Disconnect battery: If your car has power steering, disconnect the battery to avoid accidental pump operation.
• Drain fluid: Remove the power steering reservoir cap and drain the fluid to minimize mess.

Removal

• Mark alignment: Before removing the old steering gear, mark the steering column U-joint and the gear input shaft. This simplifies alignment during reinstallation.
• Support the gear: Use a transmission jack or helper to support the weight of the steering gear while removing mounting bolts.
• Disconnect lines: For power steering, carefully disconnect the high-pressure and return lines. Have rags ready for fluid drips.

Installation

• Transfer components: If your old gear had a pitman arm (for steering boxes) or tie rod ends (for racks), transfer them to the new unit unless you're replacing them separately.
• Bolt in place: Install the mounting bolts and torque to manufacturer specifications. Use thread locker if recommended.
• Reconnect lines: Use new crush washers or O-rings supplied with the unit. Torque fittings correctly to avoid leaks.
• Align steering: Center the steering wheel and align the gear's input shaft with the column U-joint. Install the bolt and torque it.
• Bleed system: Refill with the correct power steering fluid (typically ATF or specific Porsche fluid; check the manual). Turn the wheel lock-to-lock with the engine off, then start the engine and repeat until the fluid is clear and no bubbles.

Post-Installation

• Check alignment: A steering gear replacement does not require a full alignment, but it's wise to check toe and adjust if needed.
• Inspect for leaks: After a test drive, check all connections for fluid leaks.

Maintenance and Longevity

Eleven Parts steering gears are built to last, but proper maintenance extends their life:

• Fluid changes: Change power steering fluid every 2–3 years or according to your Porsche's service schedule.
• Belly pan: For 911s, keep the engine/transmission belly pan installed to protect the steering rack from road debris.
• Boots and seals: Inspect the rubber boots on tie rod ends and the steering gear for cracks. Replace if damaged.
• Lubrication: Some steering boxes require periodic grease. Check if your unit is sealed or has grease fittings.

Final Recommendation

For Porsche owners seeking a reliable replacement steering gear that balances cost and quality, Eleven Parts is a strong choice. Their direct-fit design and upgraded internals make them especially appealing for daily drivers and weekend track cars. If you're restoring a rare model like a 928 or 914, Eleven Parts may be your best option when OEM parts are unavailable. For pure concours restorations where originality is paramount, consider OEM or genuine ZF units. Always verify compatibility with your specific Porsche using the chassis number, and opt for a new unit if you plan to keep the car long-term, as rebuilt units have a shorter service life. Install with care, and your Eleven Parts steering gear will deliver crisp, reliable steering for years.