Standard Ignition Distributor Cap P/N:JH-139

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$32.99
MPN: JH-139
Item Package Quantity: 1
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Standard Ignition Distributor Cap P/N:JH-139
Standard Ignition Distributor Cap P/N:JH-139
$32.99

Send high-voltage spark to every cylinder with the Standard Ignition Distributor Cap JH-139. It drops in as a direct-fit replacement for the 1988-1991 Mazda 929 (V6-3.0L) and the 1992-1995 Mazda MPV (V6-3.0L), carrying the current from the distributor rotor out to each spark plug wire so the ignition system keeps firing in the proper order.

  • Dielectric body: molded from high-dielectric-strength, glass/mineral-reinforced polyester resin for less carbon tracking and greater resistance to electrical breakdown.
  • Terminals: aluminum contact terminals, with 7 spark-plug towers in the side position.
  • Mounting: screw-type mount; black cap finish. Instructions are included.

The rotor, spark plug wires, gaskets, and mounting screws are not included — reuse or replace these as directed by the vehicle service procedure. If a cracked, carbon-tracked, or corroded original cap is the cause of a misfire, this replaces it. Country of origin: Japan.

Interchange: C691 · CAPB10448 · JP952 · EP813 · 12353195 · JF0118V00 · JF0118V0091 · JF0718V00 · 0291201870
Manufacturer part number JH-139 · Part Eazy SKU JH-139

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

C691, CAPB10448, JP952, EP813, 12353195, JF0118V00, JF0118V0091, JF0718V00, 0291201870, JH-139

Frequently Asked Questions

What vehicles does the JH-139 distributor cap fit?

It's a direct-fit replacement for the 1988-1991 Mazda 929 (V6-3.0L) and the 1992-1995 Mazda MPV (V6-3.0L). See the Buyer's Guide tab to confirm your vehicle.

What does a distributor cap do?

It routes high-voltage current from the distributor rotor to each spark plug wire, delivering spark to the cylinders in the correct firing order.

How many terminals does this cap have and what are they made of?

It has 7 spark-plug towers set in the side position, with aluminum contact terminals.

Does it include a rotor, spark plug wires, or mounting screws?

No. The rotor, wires, gaskets, and screws are not included; installation instructions are included. Consult the vehicle service information for the correct fasteners.

What are the signs this distributor cap may need replacing?

Signs that may point to the cap include cracks, carbon tracking, corroded terminals, or a misfire. Diagnose the cause before replacing, since these symptoms can have other sources.