ACDelco 10042112 Alternator Brace

Part Number
Alternator BraceFits: 87-90 Chevrolet Astro, 87-93 Chevrolet S10, 87-88 Chevrolet S10 Blazer, 87-90 GMC S15, 87-88 GMC S15 Jimmy, 87-90 GMC Safari, 90-95 Chevrolet LLV, 91-93 GMC Sonoma
Special Price $56.94 Regular Price $66.99
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Alternator Brace



Features & Benefits - B1GM-recommended replacement part for your GM vehicle's original factory component
Features & Benefits - B2Offering the quality, reliability, and durability of GM OE
Features & Benefits - B3Manufactured to GM OE specification for fit, form, and function
Marketing Statement - Product LineThrough our GM Original Equipment and Professional, premium aftermarket product lines, we provide ignition system and switch products for all models of GM vehicles on the road today. With ACDelco Ignition System and Switch products you can rest assured that your vehicle is receiving high quality parts engineered for long lasting performance, durability, and dependability.
Marketing Statement - Sub BrandGet the GM quality you know and trust with ACDelco GM Original Equipment Ignition System and Switch products. Stay with the brand of parts your General Motors vehicle came with and get peace of mind that the fit, form, and function is up to the high standards and specifications of General Motors. ACDelco GM Original Equipment Ignition System and Switch products are engineered for all models of GM vehicles on the road today.
Mkt_State_Warranty_CA24 Months/40,000 KM (Parts Only). Please see for more details.
Mkt_State_Warranty_US24 Month / Unlimited Mile Limited Warranty (Parts Only). Please see for more details.
Product DescriptionACDelco GM Original Equipment Alternator Brace is a GM-recommended replacement component for one or more of the following vehicle systems: cooling, hvac, ignition, starting and charging, body-electrical and lighting, wiper and washer, and/or engine fuel management. This original equipment brace will provide the same performance, durability, and service life you expect from General Motors.




  • 1987-1990 Chevrolet Astro
  • 1987-1993 Chevrolet S10
  • 1987-1990 GMC S15
  • 1987-1988 GMC S15 Jimmy
  • 1991-1993 GMC Sonoma
  • 1987-1988 Chevrolet S10 Blazer
  • 1987-1990 GMC Safari
  • 1990-1995 Chevrolet LLV
Customer Questions
Will the alternator drain my battery?
No, the alternator is not designed to drain the battery. Instead, it charges the battery while the engine is running. If your battery is being drained, it could be due to a variety of factors, and it's recommended to have your vehicle inspected by a mechanic.
How do alternators work?
Alternators convert mechanical energy from the engine into electrical energy to power the vehicle's electrical system and charge the battery. They consist of a rotor, stator, and voltage regulator, which work together to produce electrical energy that is used to power the vehicle's electrical components and charge the battery.
Which alternator do I need?
To determine which alternator you need, consider your vehicle's make and model, engine size, and electrical system requirements.
Which alternator system is controlled by the PCM?
The variable voltage alternator system is commonly controlled by the PCM in modern vehicles.
Does AC Delco make Ford parts?
No, AC Delco produces parts primarily for General Motors vehicles and does not make parts specifically for Ford vehicles.
Can I use AC Delco parts to replace OEM parts?
Yes, in most cases AC Delco parts can be used as a replacement for OEM parts. However, it's important to ensure that the parts are compatible with your specific make and model of vehicle.
What AC Delco oil filter do I need?
AC Delco offers a variety of oil filters that are compatible with different makes and models of vehicles. To determine which AC Delco oil filter you need, consult your vehicle's owner's manual or use our online filter lookup tool that matches the make, model, and year of your vehicle.
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