Standard Ignition Distributor Cap DR-427
Standard Ignition Distributor Cap DR-427

Standard Ignition Distributor Cap P/N:DR-427

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$22.99
MPN: DR-427
Item Package Quantity: 1
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Standard Ignition Distributor Cap P/N:DR-427
Standard Ignition Distributor Cap P/N:DR-427
$22.99

Route high-voltage spark to the correct cylinder in firing order with the Standard Ignition Distributor Cap DR-427. It drops in as a direct-fit replacement for a long list of vintage GM and other classic applications — including the 1954-1956 Buick Century (V8-5.3L), the 1955-1962 Chevrolet Corvette (V8-4.3L, V8-4.6L, V8-5.3L), the 1953-1955 Cadillac DeVille (V8-5.4L), and many more; see the Buyer's Guide tab for the full list.

Features:

  • Reinforced housing: made of high dielectric strength, glass/mineral reinforced polyester resin for less carbon tracking and greater resistance to electrical breakdown.
  • Brass contact terminals: solid brass terminals (where available) make better connections and add resistance to electrical pitting and corrosion.
  • RFI suppression: RFI resistors where specified help eliminate radio static and potential ECU-damaging spikes.
  • Build: 9 terminals, vertical tower position, clip mount, black finish.

The cap covers the distributor and passes spark from the rotor out to each plug-wire terminal in sequence. Cracks, carbon tracking, or corroded terminals can lead to misfires or a hard start; if a failed cap is the cause, this replaces it. Gaskets, spark plug wires, an ignition rotor, screws, and instructions are not included. Country of origin: United States.

Interchange: 3119701 · J3119701 · 9001742 · C145 · 87781 · DR972 · RR158 · 12338675 · 1917247 · 1925223 · 1931513 · Manufacturer part number DR-427 (also DR427).

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

3119701, J3119701, 9001742, C145, 87781, DR972, RR158, 12338675, 1917247, 1925223, 1931513

Frequently Asked Questions

What does the DR-427 distributor cap do?

It covers the distributor and routes high-voltage spark from the rotor to each spark plug wire terminal in the engine's firing order.

How many terminals does this cap have?

It has 9 terminals with a vertical tower position and a clip mount. Contact terminals are brass where available.

Does it include a rotor, wires, or hardware?

No. An ignition rotor, spark plug wires, gaskets, screws, and instructions are not included with this cap.

What vehicles does the DR-427 fit?

It fits 145 vintage applications from makes such as Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac, Packard, and Studebaker. See the Buyer's Guide tab for the full list and engine codes.

What is the cap made of and where is it made?

It uses a high dielectric strength, glass/mineral reinforced polyester resin housing for less carbon tracking and greater resistance to electrical breakdown. Country of origin: United States.

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