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 Professional D308r 12363081 Ignition Distributor Cap

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

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

Help Track order

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Description

⚡ Ignite your engine’s potential with ACDelco’s pro-grade distributor cap!

ANTI ARC BARRIER - Reduces secondary voltage arcs to keep your engine firing flawlessly 🛡️
EASY LOCATOR KEYS - Simplifies installation with clear, easy-to-read alignment markers 🔍
TAILORED VEHICLE FIT - Designed specifically for your car or truck for hassle-free installation 🔧
PRECISION METAL INSERTS - Ensures lightning-fast spark transfer for peak engine performance ⚡
DURABLE PROFESSIONAL BUILD - Built to last with premium materials and backed by a 24-month unlimited mileage warranty 🏆

The ACDelco Professional D308R Ignition Distributor Cap is a vehicle-specific, premium aftermarket replacement designed for optimal fit and maximum conductivity. Featuring metal inserts and a full anti-arc barrier, it ensures reliable spark delivery and reduces engine misfires. Easy-to-read locator keys simplify installation, while durable construction backed by a 24-month unlimited mileage warranty guarantees long-lasting performance.

Specifications

ASIN	B000C9N6AK
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#130,694 in Automotive ( See Top 100 in Automotive ) #12 in Automotive Replacement Distributor Caps
Brand	ACDelco
Brand Name	ACDelco
Closure Type	Twist-On
Color	Black
Compatible with Vehicle Type	Car, Truck
Customer Reviews	4.6 out of 5 stars 120 Reviews
Exterior Finish	Painted
Global Trade Identification Number	00036666615623, 40036666615621
Included Components	ACDelco - Ignition Distri (B) (D308R)
Item Dimensions	5.4 x 4.5 x 4.3 inches
Item Type Name	ACDelco - Ignition Distri (B) (D308R)
Item Weight	6.4 ounces
Item dimensions L x W x H	5.4 x 4.5 x 4.3 inches
Manufacturer	ACDelco
Manufacturer Part Number	12363081
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	D308R
Number of Items	1
OEM Equivalent Part Number	12363081
Style Name	Professional,Simple
UPC	036666615623
Unit Count	1 Count
Vehicle Service Type	Car, Truck

Reviews

S**R

Great product

Great part

15.10.2025

D**E

Working good on my Buick

Works great for my Buick

5.07.2025

N**R

Just right

Replaced the original perfectly.

27.12.2025

R**N

Good Dist cap

5.05.2025

V**A

327 engine parts

Work great. I would deal with them again

30.11.2025

R**B

Correct AC Delco distributor cap

Correct AC Delco distributor cap for my 1973 corvette.

18.07.2024

T**C

just right!

quality product, as described

3.05.2024

C**W

Perfect fit for my '72 AMC Javelin

It works!

14.03.2024

W**Y

tres satisfait

9.09.2018

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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€ 57.97

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago