---
product_id: 204688784
title: "ACDelco GM Original Equipment D303A Ignition Distributor Cap, Black"
brand: "gm genuine parts"
price: "€ 72.82"
currency: EUR
in_stock: true
category: "Gm Genuine Parts"
url: https://www.desertcart.pt/products/204688784-acdelco-gm-original-equipment-d303a-ignition-distributor-cap-black
store_origin: PT
region: Portugal
---

# Max conductivity metal inserts Easy-install locator keys Anti-arc barrier for misfire prevention ACDelco GM Original Equipment D303A Ignition Distributor Cap, Black

**Brand:** gm genuine parts
**Price:** € 72.82
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your drive with GM-grade precision and reliability!

## Quick Answers

- **What is this?** ACDelco GM Original Equipment D303A Ignition Distributor Cap, Black by gm genuine parts
- **How much does it cost?** € 72.82 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/204688784-acdelco-gm-original-equipment-d303a-ignition-distributor-cap-black)

## Best For

- gm genuine parts enthusiasts

## Why This Product

- Trusted gm genuine parts brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Vehicle-Specific Fit:** Perfectly engineered for your GM vehicle’s ignition system 🔩
- • **Precision Metal Inserts:** Ensures peak electrical conductivity for flawless ignition ⚡
- • **GM OE Quality & Durability:** Built to GM’s exacting standards for long-lasting performance 🚗
- • **User-Friendly Locator Keys:** Simplifies installation, saving you time and hassle 🔧
- • **Anti-Arc Barrier Technology:** Reduces engine misfires by blocking secondary voltage arcs 🛡️

## Overview

The ACDelco GM Original Equipment D303A Ignition Distributor Cap is a direct replacement part designed specifically for GM vehicles. Featuring metal inserts for optimal conductivity, easy-to-read locator keys for quick installation, and a full anti-arc barrier to prevent misfires, this cap delivers GM’s trusted quality, durability, and performance. Backed by a 12-month/12,000-mile warranty, it ensures your ignition system runs smoothly and reliably.

## Description

An ACDelco GM Original Equipment Distributor Cap is a GM-recommended replacement for your vehicle’s original component. It covers the top of the distributor and provides half of the rotary switch (distributor rotor). This original equipment distributor cap has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

## Features

- Have metal inserts designed to provide the best possible fit to ensure maximum conductivity between the distributor towers and spark plug wires
- Easy-to-read locator keys on caps make proper installation simple
- Equipped with a full anti-arc barrier to reduce the possibility of secondary voltage arcs that can cause an engine to misfire
- Offering the quality, reliability, and durability of GM OE
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000BYB1Y4 |
| Automotive Fit Type | Vehicle Specific Fit |
| Brand Name | GM GENUINE PARTS |
| Closure Type | Twist-On |
| Colour | Black |
| Compatible with Vehicle Type | Vehicle |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,012) |
| Exterior Finish | Metal |
| Global Trade Identification Number | 40707773268450 |
| Item Dimensions | 17 x 14.5 x 10.7 centimetres |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 19166099 |
| Manufacturer Warranty Description | 12 Months / 12,000 Miles (Parts Only) |
| Material Type | Metal |
| Model Number | D303A |
| Number of Items | 1 |
| OEM Equivalent Part Number | 19166099 |
| Style Name | Simple |
| UPC | 707773268452 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** GM GENUINE PARTS
- **Colour:** Black
- **Exterior finish:** Metal
- **Item dimensions L x W x H:** 17 x 14.5 x 10.7 centimetres
- **Material:** Metal

## Images

![ACDelco GM Original Equipment D303A Ignition Distributor Cap, Black - Image 1](https://m.media-amazon.com/images/I/61Pv37F+vRL.jpg)

## Questions & Answers

**Q: What are the symptoms of a bad ignition coil?**
A: A failing ignition coil can cause several symptoms, including the “Check Engine Light” appears, engine misfires, difficulty starting the vehicle, reduced fuel economy and loss of power during acceleration.

**Q: How often should spark plugs be replaced?**
A: Spark plug replacement intervals depend on the type of spark plug and the vehicle’s engine. Refer to your vehicle’s Owner’s Manual for more information.

**Q: How can I tell if my distributor cap and rotor need replacing?**
A: Distributor caps and rotors typically need replacement when you notice engine misfires, difficult vehicle startup, reduced engine performance, corrosion or carbon tracking on the cap, or cracks or wear on the rotor.

**Q: What is the difference between glow plugs and spark plugs?**
A: Glow plugs are used in diesel engines to preheat the combustion chamber for a cold start. Spark plugs are used in gasoline engines to ignite the air and fuel mixture.

**Q: Does the "Service Engine Soon" light tell me when my vehicle needs a tune-up?**
A: No. The "Service Engine Soon" light comes on when the vehicle’s computer detects a minor malfunction, an engine emissions issue or that routine maintenance is needed. For more information, refer to your vehicle owner's manual.

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**Shop now:** [https://www.desertcart.pt/products/204688784-acdelco-gm-original-equipment-d303a-ignition-distributor-cap-black](https://www.desertcart.pt/products/204688784-acdelco-gm-original-equipment-d303a-ignition-distributor-cap-black)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-10-26*