Ignitions and Electrical› Ignition Components

ACDelco

Ignition Coil

$55.10

SKU: D577

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The ACDelco D577 Ignition Coil is designed to provide reliable and efficient performance for your vehicle's ignition system. Manufactured to meet OE specifications, the D577 guarantees a perfect fit and dependable operation for various GM vehicles.
Show original supplier description
The ACDelco D577 Ignition Coil is engineered to deliver dependable performance for your vehicle's ignition system. This coil is manufactured to meet OE specifications, guaranteeing a perfect fit and reliable operation for a wide range of GM vehicles, including Chevrolet, GMC, Buick, and Cadillac. Constructed with an external, square coil type, the D577 features a male connector gender and female blade terminal type with four terminals. It has a height of 2.58 inches and a width of 2.860 inches. The ignition type is electronic, and it mounts using screws with an included mounting bracket, positioned above the valve cover. This ignition coil operates on a 12-volt system and does not require an external resistor or contain oil.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandACDelco
Part NumberD577
CategoryIgnitions and Electrical

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy