Sale

Ignitions and Electrical› Charging Systems

ACDelco

Alternator Rotor

$23.24 $19.99 Save $3.25

SKU: D448X

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

Moderate — 2–4 hours

Overview

It is manufactured to meet or exceed expectations for fit, form, and function.

This rotor features brass contact terminals and brass insert material, with a screw mount type. Its dimensions are 2.35 inches in height, 6.85 inches in length, and 3.8 inches in width. The product is white in color and requires no programming.
Show original supplier description
It is manufactured by ACDelco to meet or exceed expectations for fit, form, and function, providing the performance and dependability associated with the brand. Constructed with a white exterior, this rotor features brass contact terminals and brass insert material, ensuring reliable electrical transfer. Its mounting type is screw, and it includes Philips mounting screws for easier installation, as confirmed by customer Q&A. The physical dimensions of the rotor are 2.35 inches in height, 6.85 inches in length, and 3.8 inches in width, with a weight of 0.42 lb. Notably, no programming is required for installation. The ACDelco D448X is a direct fit replacement for a wide range of vehicles, including many Buick, Chevrolet, GMC, and American Motors models from the 1970s through the 1980s. Customer reviews highlight its durability, ease of installation, and ability to improve engine efficiency and power. Many users consider it a sensible and reliable replacement for original equipment parts, with one reviewer noting its predecessor lasted 148,000 miles. This distributor rotor comes with a 2-year warranty, underscoring ACDelco's commitment to quality and customer satisfaction.

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 NumberD448X
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