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Standard Ignition GB-339 Distributor RotorOE Quality 60-Day Returns
Part #: Y-402

Standard Ignition GB-339 Distributor Rotor

97 vehicles fit this part
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Distributor Rotor for BMW and Volvo Ignition Systems

Standard Ignition GB-339 is a bolt-on distributor rotor built for select BMW and Volvo ignition applications. It features a phenolic rotor body, brass contact material, a red finish, and an RFI-coated contact terminal to support consistent distributor operation in the vehicles listed below.

Key Features

  • Bolt-on mount type for direct distributor rotor replacement
  • Phenolic rotor material for ignition system durability
  • Brass contact material for reliable electrical transfer
  • RFI-coated contact terminal to help reduce radio-frequency interference
  • Red color/finish for easy visual identification during service
  • Standard Ignition GB-339 replacement part number

Detailed Description

This distributor rotor is used in ignition systems that route high-voltage spark from the distributor to the correct cylinder at the proper time. Standard Ignition GB-339 is listed for a wide range of BMW applications, including 1982-2001 BMW 528e, 535i, 635CSi, 735i, 735iL, 750iL, 850i, 850Ci, 850CSi, M5, M6, 325e, 325es, 325i, 325is, 325iX, 525i, and 535is, plus 1987-1990 Volvo 760 and 780. It also fits 1990-1992 Dodge Monaco applications shown in the catalog data. This part cross-references D652 and EP573 for the same application.

What It Helps Address

  • Weak or inconsistent spark delivery through the distributor
  • Misfire caused by worn rotor contact surfaces
  • Ignition crossfire related to rotor wear or contamination
  • Radio interference concerns tied to ignition terminal output
  • Service replacement for aging distributor rotor components

Installation Notes and Tips

Verify distributor style and engine application before installation. Clean the distributor cap and inspect the cap terminals, ignition wires, and related ignition components at the same time. Confirm the rotor seats correctly on the distributor shaft and that the bolt-on mounting style matches the original part. For BMW 325i, 535i, and M5 applications, as well as Volvo 760 and 780 models, match the catalog fitment exactly before service.

Quality Assurance

Standard Ignition GB-339 is built to the listed OE-style specifications for the applications shown, including brass contact construction, phenolic rotor material, and an RFI-coated terminal. Use the confirmed fitment data to verify compatibility before installation.

BrandATP Parts
Part NumberY-402
End 1 TypeBarrel
End 2 TypeBarrel
Length51.18
LineCodeATP

This part fits 97 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2001BMW750iLN/A
2000BMW750iLN/A
1999BMW750iLN/A
1998BMW750iLN/A
1997BMW750iLN/A
1997BMW850CiN/A
1996BMW750iLN/A
1996BMW850CiN/A
1995BMW750iLN/A
1995BMW850CiN/A
1995BMW850CSiN/A
1994BMW750iLN/A
1994BMW850CiN/A
1994BMW850CSiN/A
1993BMW535iN/A
1993BMW750iLN/A
1993BMW850CiN/A
1993BMWM5N/A
1992BMW535iN/A
1992BMW735iN/A
1992BMW735iLN/A
1992BMW750iLN/A
1992BMW850iN/A
1992BMWM5N/A
1992DodgeMonacoN/A
1991BMW325iN/A
1991BMW325isN/A
1991BMW325iXN/A
1991BMW535iN/A
1991BMW735iN/A
1991BMW735iLN/A
1991BMW750iLN/A
1991BMW850iN/A
1991BMWM5N/A
1991DodgeMonacoN/A
1990BMW325iN/A
1990BMW325isN/A
1990BMW325iXN/A
1990BMW525iN/A
1990BMW535iN/A
1990BMW735iN/A
1990BMW735iLN/A
1990BMW750iLN/A
1990DodgeMonacoN/A
1990Volvo7602.8LV6N/A
1990Volvo7802.8LV6N/A
1989BMW325iN/A
1989BMW325isN/A
1989BMW325iXN/A
1989BMW525iN/A
1989BMW535iN/A
1989BMW635CSiN/A
1989BMW735iN/A
1989BMW735iLN/A
1989BMW750iLN/A
1989Volvo7602.8LV6N/A
1989Volvo7802.8LV6N/A
1988BMW325iN/A
1988BMW325isN/A
1988BMW325iXN/A
1988BMW528eN/A
1988BMW535iN/A
1988BMW535isN/A
1988BMW635CSiN/A
1988BMW735iN/A
1988BMW735iLN/A
1988BMW750iLN/A
1988BMWM5N/A
1988BMWM6N/A
1988Volvo7602.8LV6N/A
1988Volvo7802.8LV6N/A
1987BMW325eN/A
1987BMW325esN/A
1987BMW325iN/A
1987BMW325isN/A
1987BMW528eN/A
1987BMW535iN/A
1987BMW635CSiN/A
1987BMW735iN/A
1987BMWM6N/A
1987Volvo7602.8LV6N/A
1987Volvo7802.8LV6N/A
1986BMW325eN/A
1986BMW325esN/A
1986BMW528eN/A
1986BMW535iN/A
1986BMW635CSiN/A
1986BMW735iN/A
1985BMW325eN/A
1985BMW528eN/A
1985BMW535iN/A
1985BMW635CSiN/A
1985BMW735iN/A
1984BMW325eN/A
1984BMW528eN/A
1983BMW528eN/A
1982BMW528eN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1657816652430083443008384300839430084552778325277922610149061243CA-8301CA8301CB302CE655

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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