What are the symptoms of a bad ignition coil?

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.

How often should spark plugs be replaced?

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.

How can I tell if my distributor cap and rotor need replacing?

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.

What is the difference between glow plugs and spark plugs?

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.

Does the "Service Engine Soon" light tell me when my vehicle needs a tune-up?

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.

Acdelco Gm Original Equipment D303a Ignition Distributor Cap Black

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

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€ 82.33

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In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Ignite your ride with GM-grade precision and reliability!

LIGHTWEIGHT DURABLE - Compact 210g design built to last under demanding driving conditions.
EFFORTLESS INSTALLATION - Clear locator keys make setup quick and foolproof—no guesswork needed.
GM RECOMMENDED RELIABILITY - Original Equipment quality trusted by professionals and enthusiasts alike.
ENGINEERED TO PREVENT MISFIRES - Full anti-arc barrier reduces secondary voltage arcs, keeping your engine firing smoothly.
PRECISION FIT PEAK PERFORMANCE - Metal inserts ensure flawless conductivity and a perfect fit every time.

The ACDelco GM Original Equipment D303A Ignition Distributor Cap is a genuine GM replacement part designed for a perfect fit and maximum conductivity. Featuring metal inserts, easy-to-read locator keys, and a full anti-arc barrier, it ensures reliable engine performance and reduces misfires. Trusted by GM and backed by high customer ratings, this durable, lightweight cap delivers OEM quality for your vehicle’s ignition system.

Specifications

ASIN	B000BYB1Y4
Automotive Fit Type	Vehicle Specific Fit
Brand	GM GENUINE PARTS
Brand Name	GM GENUINE PARTS
Closure Type	Twist-On
Colour	Black
Compatible with Vehicle Type	Vehicle
Customer Reviews	4.8 out of 5 stars 999 Reviews
Exterior Finish	Metal
Exterior finish	Metal
Global Trade Identification Number	40707773268450
Item Dimensions	17 x 14.5 x 10.7 centimetres
Item dimensions L x W x H	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	Metal
Material Type	Metal
Model Number	D303A
OEM Equivalent Part Number	19166099
Style Name	Simple
UPC	707773268452
Unit Count	1.0 count
Vehicle service type	Vehicle

Reviews

A**R

OEM part thumbs up

Fit works perfectly

28.02.2026

J**N

good fit

perfect fit

31.10.2022

E**S

Excelente

Muy buen elemento lo instale en mi Cheyenne 1990 y funciona mucho mejor la recomiendo

22.02.2026

J**Z

Good product 👍🏼

Fast delivery, Packaging and product arrived in good shape 👍🏼 Fit perfect on my 93 Chevy C1500 with a 350. Two screws to take off and place new one right on. Vehicle started right up with no issues. Also replaced rotor, plug wires and pvc valve. All AC delco. Just make sure if you take a spark plug wire off you put it one by one on the new cap. I also used tape and a number on each one. Anybody can do this. YouTube helps if not.

31.12.2019

G**E

Quality product

Fit well ,well built

23.09.2022

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€ 82.33

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In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

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