---
product_id: 5674352
title: "GM Genuine Parts D303A (19166099) Ignition Distributor Cap"
brand: "gm genuine parts"
price: "S$73"
currency: SGD
in_stock: true
category: "Gm Genuine Parts"
url: https://www.desertcart.sg/products/5674352-gm-genuine-parts-d303a-19166099-ignition-distributor-cap
store_origin: SG
region: Singapore
---

# Max conductivity metal inserts Vehicle-specific perfect fit Full anti-arc barrier protection GM Genuine Parts D303A (19166099) Ignition Distributor Cap

**Brand:** gm genuine parts
**Price:** S$73
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your drive with GM Genuine Parts – where precision meets power!

## Quick Answers

- **What is this?** GM Genuine Parts D303A (19166099) Ignition Distributor Cap by gm genuine parts
- **How much does it cost?** S$73 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/5674352-gm-genuine-parts-d303a-19166099-ignition-distributor-cap)

## 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

- • **Anti-Arc Barrier Shield:** Minimizes engine misfires by preventing secondary voltage arcs.
- • **GM OE Quality Assurance:** Factory-recommended part delivering unmatched durability and reliability.
- • **Precision Metal Inserts:** Ensures peak electrical conductivity for flawless ignition performance.
- • **Twist-On Closure Design:** Secure fit that’s quick to install, keeping your engine running smoothly.
- • **Easy-Install Locator Keys:** Simplifies installation with clear, user-friendly alignment guides.

## Overview

The GM Genuine Parts D303A Ignition Distributor Cap is a vehicle-specific, factory-recommended replacement part engineered with metal inserts for optimal conductivity and a full anti-arc barrier to prevent misfires. Designed for easy installation with locator keys and a secure twist-on closure, it guarantees GM OE quality, durability, and performance for your GM vehicle.

## 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
- GM-recommended replacement part for your GM vehicle’s original factory component
- Offering the quality, reliability, and durability of GM OE

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000BYB1Y4 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #35,181 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Replacement Distributor Caps |
| Brand | GM GENUINE PARTS |
| Brand Name | GM GENUINE PARTS |
| Closure Type | Twist-On |
| Color | Black |
| Compatible with Vehicle Type | Vehicle |
| Customer Reviews | 4.7 out of 5 stars 1,046 Reviews |
| Exterior Finish | Metal |
| Global Trade Identification Number | 40707773268450 |
| Item Dimensions | 6.7 x 5.7 x 4.2 inches |
| Item dimensions L x W x H | 6.7 x 5.7 x 4.2 inches |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 19166099 |
| Manufacturer Warranty Description | 24 Months / Unlimited Miles on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details. |
| Material | Metal |
| Material Type | Metal |
| Model Number | D303A |
| Number of Items | 1 |
| OEM Equivalent Part Number | 19166099 |
| Style Name | Simple |
| UPC | 707773268452 |
| Unit Count | 1 Count |
| Vehicle Service Type | Vehicle |

## Product Details

- **Brand:** GM GENUINE PARTS
- **Color:** Black
- **Exterior Finish:** Metal
- **Item dimensions L x W x H:** 6.7 x 5.7 x 4.2 inches
- **Material:** Metal

## Images

![GM Genuine Parts D303A (19166099) Ignition Distributor Cap - 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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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-10-11*