ATG12471 Alternator 10463018 10463019 400-12451 for Buick Skyhawk Oldsmobile Firenza Pontiac Grand Am 2.0L 1987–1990 | 12V 100A CW CS130 5-Groove Pulley Replacement-Products-TIANGUAN-Page 1

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ATG12471 Alternator 10463018 10463019 400-12451 for Buick Skyhawk Oldsmobile Firenza Pontiac Grand Am 2.0L 1987–1990 | 12V 100A CW CS130 5-Groove Pulley Replacement

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PRODUCT DETAILS

ATG12471 Alternator 10463018 10463019 400-12451 for Buick Skyhawk Oldsmobile Firenza Pontiac Grand Am 2.0L 1987–1990 | 12V 100A CW CS130 5-Groove Pulley Replacement

Part Numbers

Brand	OEM / Cross Reference Numbers
AC DELCO	321-316, 321-317, 321-327, 334-2323, 334-2324
ARROWHEAD	ADR0160, 400-12451
BBB NEW (OLD)	N7868-11
CARGO	112631
DELCO	10463018, 10463019, 10463029, 1101144, 1101145, 1101190
DELPHI	RM1118
LESTER	7801-11, 7870-11
LESTER (OLD)	7868-11, 7869-11
NSA	ALT-1312C
WAI	1-1630-32DR, 1-1631-33DR

Product Description

The ATG12471 Alternator is a high-quality aftermarket replacement designed for select Buick, Oldsmobile, and Pontiac vehicles equipped with the 2.0L (122) L4 engine. Operating at 12V with a 100A charging output, this alternator supports reliable battery charging and consistent electrical system performance.

This alternator features a Delco CS130 design, clockwise (CW) rotation, an internal regulator (IR), and an external fan (EF). It is configured for a 5-groove pulley with an approximate 62 mm outside diameter and an 11:00 plug position. The specified configuration also includes a #411 regulator reference to help identify the correct replacement.

Compatible applications include the Buick Skyhawk, Oldsmobile Firenza, and Pontiac Grand Am for the listed model years. Before ordering, compare the original alternator part number, connector position, pulley dimensions, mounting points, and regulator configuration to confirm fitment.

Product Specifications

Item	Specification
Product Name	Alternator
SKU	ATG12471
Unit Type	Alternator
Part Type	Complete Unit
Condition	Brand New Aftermarket Part
Voltage	12V
Output Current	100A
Rotation	Clockwise (CW)
Alternator Type	Delco CS130
Pulley Class	1259
Pulley Type	5-Groove Pulley
Pulley Outside Diameter	Approximately 62 mm
Regulator Type	IR (Internal Regulator)
Fan Type	EF (External Fan)
Plug Position	11:00
Regulator Reference	#411
Compatible Engine	2.0L (122) L4
Primary OEM Reference	Delco 10463018
Cross Reference	10463019, 10463029, 400-12451, Lester 7801-11, 7870-11
Estimated Net Weight	5.5 kg (Estimated)

Compatible Applications

Make	Type	Model	Year	Engine
Buick	Auto and Light Truck	Skyhawk	1987	2.0L (122) L4
Buick	Auto and Light Truck	Skyhawk	1988	2.0L (122) L4
Oldsmobile	Auto and Light Truck	Firenza	1987	2.0L (122) L4
Oldsmobile	Auto and Light Truck	Firenza	1988	2.0L (122) L4
Pontiac	Auto and Light Truck	Grand Am	1987	2.0L (122) L4

PRODUCT HIGHLIGHTS

Product Highlights

Feature	Description	Benefit
100A Charging Output	Provides 12V electrical power with a 100A rating	Supports dependable battery charging and electrical system operation
Delco CS130 Design	Features an internal regulator and external fan	Provides reliable charging performance in compatible applications
5-Groove Pulley	Approx. 62 mm pulley with an 11:00 plug position	Helps ensure proper belt alignment and connector compatibility

SHIPPING

Item Details

Processing Time Orders are processed within 1-3 business days after payment confirmation

Shipping Methods DHL/UPS/ FedEx/ TNT/ Air Freight/ Sea Freight

Estimated Delivery Time Express shipping: 3-7 business days, depending on destination

Packaging Export-standard cartons with protective inner packing

Tracking Tracking number will be provided once the order is shipped

Shipping Cost Calculated based on weight, dimensions, and destination

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WARRANTY POLICY

All new aftermarket parts come with a 1-Year warranty. Quality is the first thing we consider. Check out our Warranty Assistance for more details.

SHIPPING POLICY

We offer express and standard shipping options to ensure your off-road machine gets back in action—fast and reliably. For more details, please visit our Shipping Policy .

EASY RETURN POLICY

We prioritize your satisfaction. If your order doesn't meet your expectations within 90 days, you may be eligible for a refund. See our Easy Return Policy for details.

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