GM Genuine Parts D329A distributor cap top view showing precise fit and durable construction.
GM Genuine Parts D329A distributor cap side view highlighting anti-arc barrier helps reduce misfires.
GM Genuine Parts D329A distributor cap top view showing precise fit and durable construction.
GM Genuine Parts D329A distributor cap side view highlighting anti-arc barrier helps reduce misfires.

GM Genuine Parts D329A Distributor Cap (10452459) – OE Replacement

Upgrade your GM with the GM Genuine Parts D329A Distributor Cap, a GM Original Equipment replacement that...
Vendor: GM GENUINE PARTS
Availability: In stock
£65.09
£65.09
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GM Genuine Parts D329A distributor cap top view showing precise fit and durable construction.

GM Genuine Parts D329A Distributor Cap (10452459) – OE Replacement

£65.09
GM Genuine Parts D329A distributor cap top view showing precise fit and durable construction.
GM Genuine Parts D329A distributor cap side view highlighting anti-arc barrier helps reduce misfires.

GM Genuine Parts D329A Distributor Cap (10452459) – OE Replacement

£65.09
Description
Description
x

Upgrade your GM with the GM Genuine Parts D329A Distributor Cap, a GM Original Equipment replacement that mirrors the design and durability of the part your vehicle left the factory with. It sits atop the distributor, covering the rotor path and helping route the spark to each cylinder with precision.

Built to fit a wide range of GM models, this cap is engineered to the same standards General Motors expects from its OE parts, ensuring consistent performance and service life. The D329A cap works as part of the distributor system to support reliable ignition timing in everyday driving and on longer road trips.

Key benefits and features

  • Metal inserts provide a secure fit that supports strong conductivity between the distributor towers and spark plug wires.
  • Vehicle-specific fit type ensures compatibility with your GM model and engine configuration.
  • Cap design includes an anti-arc barrier to reduce the chance of secondary voltage arcs that can contribute to misfires.

Installation is straightforward thanks to clear locator keys on the cap. This helps ensure you seat the cap correctly the first time, saving time during maintenance.

What you get

  • Distributor Cap Tower Quantity: 8
  • Reliable OE-grade materials backed by GM's engineering standards

Real-world use and considerations

Designed for everyday driving, seasonal maintenance cycles, and routine tune-ups, the D329A OE cap is built to endure typical engine bay conditions and provide consistent spark delivery. While outcomes will vary by vehicle and driving style, you may notice smoother start-up and steady operation when the cap works in harmony with the rest of the ignition system.

FAQ

Q: What is the GM Genuine Parts D329A Distributor Cap used for?

A: It’s an OE replacement that fits GM vehicles, covering the distributor top and part of the rotor path to help spark delivery.

Q: What are the key benefits of this distributor cap?

A: Precise fit and robust materials, metal inserts for conductivity, locator keys for simple installation, and an anti-arc barrier to reduce secondary arcing.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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