Distributor Cap for 1991-1994 Nissan 240SX - Standard Ignition JH-178

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$17.99
MPN: JH-178
Item Package Quantity: 1
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Standard Ignition Distributor Cap P/N:JH-178
Standard Ignition Distributor Cap P/N:JH-178
$17.99

Help keep high-voltage spark flowing to every plug wire with this Standard Ignition 1991-1994 Nissan 240SX distributor cap, part number JH-178. It is a direct-fit replacement for the 1991-1994 Nissan 240SX. See the Buyer's Guide tab for engine details.

Standard is a global manufacturer of original equipment ignition products. It maintains complete quality control throughout manufacturing, from componentry to the finished product, and its distributor caps and rotors draw on decades of research and development.

  • Cap material: Standard makes its distributor caps from a high dielectric strength, glass/mineral reinforced polyester resin. The material is intended to reduce carbon tracking and resist electrical breakdown.
  • RFI resistors, where specified: On caps where Standard specifies them, RFI resistors are designed to help suppress radio static and potential ECU-damaging voltage spikes.
  • Solid brass terminals, where available: Where Standard offers them, solid brass terminals are intended to make better connections and to better resist electrical pitting and corrosion.

The distributor cap receives high voltage from the ignition coil. As the rotor turns beneath it, the cap passes that voltage to each spark plug terminal in turn.

Signs a cap may need replacing include misfires, rough idle, hard starting, and cracks, carbon tracks or corroded terminals inside the cap. These symptoms can have other causes, so inspect the ignition system before replacing parts. If a worn cap is the cause, this unit replaces it.

Interchange: 10-0245
100245 · C735 · JD926 · EP888 · 19017074 · 221621C710 · 2216253F11

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

C735, JD926, EP888, 19017074, 10-0245, 221621C710, 2216253F11, JH-178

Frequently Asked Questions

Will this distributor cap fit my 1991-1994 Nissan 240SX?

Part JH-178 is listed for the 1991-1994 Nissan 240SX. Check the Buyer's Guide tab for the engine details that apply to your vehicle.

What is the Standard JH-178 distributor cap made of?

Standard makes its distributor caps from a high dielectric strength, glass/mineral reinforced polyester resin. The material is intended to reduce carbon tracking and resist electrical breakdown.

What are signs a distributor cap may need replacing?

Common signs include misfires, rough idle, hard starting, and cracks, carbon tracks or corroded terminals inside the cap. These can have other causes, so inspect the ignition system first.

What does a distributor cap do?

It receives high voltage from the ignition coil. As the rotor spins beneath it, the cap passes that voltage to each spark plug wire terminal.

Which part numbers does JH-178 interchange with?

It cross-references 10-0245, C735, JD926, EP888, 19017074, 221621C710 and 2216253F11.