Ring gear. Porsche 911 87-89 / 964 C4  ❭  95011614305

Ring Gear.
The OE Match Ring Gear is a high-quality replacement drivetrain component designed to work as part of the engine starting system. Manufactured to OE specifications for fit, strength and durability, the ring gear is mounted to the flywheel or flexplate and provides the engagement surface for the starter motor pinion gear during engine start-up. 

Fits: 

• Porsche 911 1987-1989 3.2L G50
• Porsche 964 (911) C4 1989-93  

Precision-machined from hardened steel, the ring gear is engineered to withstand repeated engagement loads and high torque forces generated during engine cranking. Accurate tooth geometry ensures smooth starter engagement, reliable engine starting and long service life under demanding operating conditions.  

What This Product Does:

• Provides the engagement surface for the starter motor pinion gear.
• Transfers rotational force from the starter motor to the engine.
• Enables reliable engine cranking and starting.
• Works in conjunction with the flywheel or flexplate assembly.
• Ensures smooth engagement during start-up.
• Supports consistent operation of the starting system.
• Contributes to dependable vehicle reliability.

Symptoms Of Wear Or Failure:

• Grinding noises during engine starting.
• Starter motor spinning without turning the engine.
• Intermittent starting problems.
• Clicking noises during starter engagement.
• Starter motor slipping during cranking.
• Visible chipped, worn or missing teeth on inspection.
• Engine only starting when stopped in certain positions.
• Premature wear of the starter motor pinion gear.

Why Replacement Matters:

• The ring gear is subjected to repeated high-torque engagement every time the engine is started. Over time, the teeth can become worn, chipped, rounded or damaged, particularly in vehicles with high mileage or faulty starter motors. Excessive wear can prevent the starter pinion from engaging correctly, resulting in unreliable starting performance.
• A damaged ring gear can place additional strain on the starter motor, accelerating wear of both components and potentially leading to complete starting system failure. If left unresolved, the vehicle may become difficult or impossible to start, resulting in inconvenience and costly repairs.
• Replacing a worn ring gear restores proper starter engagement, improves starting reliability and helps protect the starter motor from unnecessary wear. An OE Match replacement provides factory-style fitment, precision machining and long-term durability, ensuring dependable starting performance and preserving the reliability of your Porsche.

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95011614305

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