Standard Ignition Distributor Rotor GB-337

Standard Ignition Distributor Rotor GB-337 - view 2

Standard Ignition Distributor Rotor GB-337 - view 3

Standard Ignition Distributor Rotor P/N:GB-337

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$14.99

MPN: GB-337

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Standard Ignition Distributor Rotor P/N:GB-337

$14.99

Description

Send spark to the right cylinder at the right instant with the Standard Ignition Distributor Rotor GB-337. This distributor rotor drops in as a direct-fit replacement for the 1981 Mercedes-Benz 280CE, 1981 Mercedes-Benz 280E, 1984-1986 Alfa Romeo GTV-6, 1987-1989 Alfa Romeo Milano, and the 1984, 1986-1989, and 1991-1993 Porsche 911. Mounted on the distributor shaft, it rotates to carry high-voltage spark from the coil to each terminal inside the distributor cap in firing order, so ignition energy reaches every cylinder in sequence.

Core job: transfers coil high-voltage to the cap terminals as the shaft turns, keeping the spark distribution on schedule.
Direct-fit application: built to serve as a replacement rotor on the listed vehicles.
Signs it may need replacing: rough running, intermittent misfire, or hard starting — if a worn, cracked, or carbon-tracked rotor is the cause, this replaces it.

Because these symptoms can have other sources, diagnose the ignition system before ordering. A distributor rotor is commonly serviced alongside the distributor cap.

Interchange: D727 · 1234332279 · 1234332346 · RB967 · EP747 · 04163
Manufacturer part number GB-337 (also GB337).

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

This part cross-references / interchanges with the following part numbers:

D727, 1234332279, 1234332346, RB967, EP747, 04163, GB-337

Frequently Asked Questions

What does this distributor rotor do?

It mounts on the distributor shaft and rotates to route high-voltage spark from the coil to each terminal in the distributor cap in firing order, feeding ignition energy to every cylinder in sequence.

Which vehicles does the GB-337 fit?

It is a direct-fit replacement for the 1981 Mercedes-Benz 280CE and 280E, 1984-1986 Alfa Romeo GTV-6, 1987-1989 Alfa Romeo Milano, and the 1984, 1986-1989, and 1991-1993 Porsche 911. See the Buyer's Guide tab to confirm your vehicle.

What are the signs a distributor rotor may need replacing?

Rough running, intermittent misfires, and hard starting can point to a worn, cracked, or carbon-tracked rotor. Since these symptoms have other causes, diagnose the ignition system before replacing.

What numbers does this part interchange with?

It cross-references D727, 1234332279, 1234332346, RB967, EP747, and 04163. Its own manufacturer part number is GB-337.

Should I replace the distributor cap at the same time?

A distributor rotor is commonly serviced together with the distributor cap, since both wear from spark erosion. Consult the vehicle service information for the recommended maintenance.