Standard Ignition GB-351 Distributor Rotor

Distributor Rotor for Porsche and Rolls-Royce

Standard Ignition GB-351 is a distributor rotor built for specific Porsche and Rolls-Royce applications. It uses a push-on mount, brass contact material, and a plastic rotor body with a red finish for straightforward distributor service.

Key Features

• Standard Ignition distributor rotor, part number GB-351
• Push-on mount type for direct distributor installation
• Brass contact material for consistent spark transfer
• Plastic rotor construction with red finish
• Distributor rotor contents only
• Compatible with select Porsche 924 and Porsche 944 applications, plus Rolls-Royce Corniche II, Silver Spirit, and Silver Spur models

Detailed Description

GB-351 is a distributor rotor for ignition service on select Porsche and Rolls-Royce vehicles. This rotor is specified with a push-on mount and brass contact material, helping maintain proper rotor-to-cap electrical transfer inside the distributor. The red plastic housing provides the physical structure of the rotor while keeping the part lightweight and application-specific. This Standard Ignition GB-351 rotor is listed for 1983-1986 Porsche 944, 1987-1988 Porsche 924, 1987-1988 Porsche 944 with triangular rotor, 1989 Porsche 944, and 1990-1991 Rolls-Royce Corniche II, Silver Spirit, and Silver Spur.

This part cross-references EXEDY OEM 04155 for the same application.

What It Helps Fix

• Weak or inconsistent spark delivery from a worn rotor
• Misfire caused by damaged rotor contacts
• Distributor cap wear related to poor rotor contact alignment
• Hard starting tied to ignition rotor deterioration
• Ignition performance issues on Porsche 944, Porsche 924, and Rolls-Royce V8 applications

Installation Notes and Tips

Verify distributor style before ordering, especially on 1987-1988 Porsche 944 applications that require the triangular rotor note. Inspect the distributor cap, cap terminals, and shaft condition during service, since rotor wear often appears alongside related ignition wear. Confirm the push-on mount seats fully on the distributor shaft before reassembly.

Quality Assurance

Standard Ignition supplies ignition service parts for direct-fit replacement use. GB-351 is built to match the listed application requirements for the specified Porsche and Rolls-Royce vehicles.