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- Brand:
- SKU:
335-1255
- GTIN: 00808709080688
- UPC: 808709080688
- Other Names:
19298407
- Description: ACDelco Gold (Professional) NEW Alternators are the high quality alternative to Original Equipment (OE) parts. Key components are lubricated to help ensure improved performance and long life reliability even in the toughest conditions. Alternators have regulators that are computer tested for voltage stability, terminal function, and electronic circuit board integrity. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional. ⚠ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
- Condition: New
- Warranty:
Alternator - ACDelco (335-1255)
- Sale Price: $177.34
- Sale Price: $177.34
Pricing is valid online only and may vary in your local store
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Brand
ACDelco
Shop ACDelco Parts Online – Genuine GM Aftermarket Quality
Explore ACDelco, the official General Motors (GM) original equipment and aftermarket parts brand, now available at AutoNation’s Aftermarket Store. Trusted by professional technicians and vehicle owners worldwide, ACDelco offers high-quality parts engineered for reliability, durability, and OE-level performance.
With a full lineup that includes:
-
Starters & alternators
-
Brake pads & rotors
-
Oil filters & air filters
-
Ignition components
-
Suspension & steering parts
…ACDelco ensures a precise fit for GM vehicles and a wide range of non-GM makes and models.
Backed by a 24-month/unlimited-mile limited warranty, ACDelco parts meet rigorous industry standards for quality and performance. When you choose ACDelco at AutoNation Parts, you get genuine aftermarket value — delivered fast and supported by America’s most admired automotive retailer.
Store
aftermarket
AutoNation Aftermarket Parts FAQ & Buying Guide | AutoNation Parts
What is the AutoNation Aftermarket Store?
The AutoNation Aftermarket Store is your trusted source for high-quality aftermarket auto parts and accessories. We offer over 275+ leading brands, delivering reliable components for nearly every make and model on the road today.
What types of aftermarket parts do you offer?
Our inventory includes everything from performance upgrades to essential replacement parts such as brakes, filters, suspension components, lighting, and electronics. Whether you're maintaining or upgrading your vehicle, we have you covered.
How do I find the right part for my vehicle?
Use our Search by Vehicle tool to quickly match parts to your exact make, model, and year. This ensures proper fitment and optimal performance.
Are aftermarket parts reliable?
Yes. We carefully curate our catalog with trusted aftermarket brands known for durability and performance. Many aftermarket parts meet or exceed OEM standards while offering better value.
How fast is shipping?
We offer fast and reliable delivery nationwide. Most orders are processed quickly so you can get back on the road without delays.
Do you offer discounts on aftermarket parts?
Yes. Combine essential maintenance items and apply promo code MAINT5SAVE at checkout when your order reaches $75+ to save on your purchase.
Can I install these parts myself?
Many of our products are perfect for DIY enthusiasts, while others may require professional installation. Always review product details and consult a technician if needed.
What if I order the wrong part?
If a part doesn’t fit, you can review our Returns Policy for easy return or exchange options. We recommend verifying compatibility before purchase.
Why shop with AutoNation Aftermarket?
AutoNation is one of America’s most trusted automotive retailers, with 300+ locations nationwide. We combine competitive pricing, quality assurance, and expert selection to deliver unmatched value.
Do aftermarket parts affect vehicle performance?
High-quality aftermarket parts can enhance performance, efficiency, and durability. Choosing the right components ensures your vehicle operates at its best.
Key Product Information
Additional Information
| Brand | ACDelco Gold |
| Alternator Case Material | Aluminum |
| Amperage Rating | 100 |
| DE to Pulley 1st Groove (mm) | 21.6mm |
| DE to Rotor Shaft End (mm) | 47.6 |
| External Fan Included | Not Applicable |
| FAQ - Answer 1 | Yes. These alternators are designed to withstand a wide range of weather conditions. |
| FAQ - Answer 2 | No. Some vehicles require more amperage than others depending on the amount of electronics that need to be operated. Consult the vehicle information for proper application. |
| FAQ - Question 1 | Can I be assured that the unit will last, especially in extreme weather? |
| FAQ - Question 2 | Do all alternators supply the same amperage? |
| Family | HIIILR |
| Fan Type | Internal |
| Features & Benefits - Bullet 1 | All components are 100% NEW to provide improved performance |
| Features & Benefits - Bullet 2 | Key components are greased to ensure long term reliability in harsh conditions |
| Features & Benefits - Bullet 3 | NEW units are manufactured under the guidelines of ISO Quality Standards to ensure consistent quality |
| Features & Benefits - Bullet 4 | ACDelco Professional NEW Alternators are computer tested for voltage stability, terminal function, and electronic circuit board integrity |
| Features & Benefits - Bullet 5 | Engineering enhancements to internal components provide the latest, most efficient unit for your vehicle |
| Features & Benefits - Bullet 6 | All dimensions, key mounting surfaces, and contact points are gauged and measured to ensure proper fit |
| Features & Benefits - Bullet 7 | Some ACDelco Gold parts may have formerly appeared as ACDelco Professional |
| Features & Benefits - Bullet 8 | Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models |
| Good Maintenance Practices - Section 1 - Bullet 1 | There is a cooling fan in most alternators to keep it from overheating. Making sure that the fan is clean will help the fan and alternator run properly. |
| Good Maintenance Practices - Section 1 - Bullet 2 | It is also important that all electrical connections are kept clean and firmly attached, which will make sure the battery is being properly charged by the alternator. |
| Ground Type | Negative |
| Height (in) | 6.8 |
| Inside Distance Between Mounting Feet (mm) | 61.4 |
| Length (in) | 7.8 |
| Meets or Exceeds Original Equipment Manufacture Specifications | Yes |
| Mounting Type | 2 Pivot Feet |
| One Wire Capable | No |
| Outside Pulley Diameter | 52 |
| Plug Clock Rear View Main Mounting Ear at 6 O Clock | 1 |
| Plug Type | PC_300 |
| Programming Required | No |
| Pulley Belt Type | Serpentine |
| Pulley Groove Quantity | 6 |
| Pulley Included | Yes |
| Regulator Type | Internal |
| Rotation Direction | Clockwise |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 1 | Grinding or squeaking noise |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 2 | Alternator warning light illuminates |
| Signs of Wear & Troubleshooting - Section 2 - Bullet 1 | Bad battery |
| Signs of Wear & Troubleshooting - Section 2 - Bullet 2 | Broken, frayed, or loose drive belt |
| Signs of Wear & Troubleshooting - Section 2 - Bullet 3 | Electrical fault |
| Signs of Wear & Troubleshooting - Section 2 - Bullet 4 | Worn or damaged bearings |
| Signs of Wear & Troubleshooting - Section 2 - Bullet 5 | Corroded or loose battery terminal connection |
| Signs of Wear & Troubleshooting - Section 2 - Bullet 6 | Burned fuses or fusible links |
| Signs of Wear & Troubleshooting - Section 2 - Header | Other vehicle parts that might cause related alternator problems include: |
| Signs of Wear & Troubleshooting - Section 3 - Bullet 1 | Battery health |
| Signs of Wear & Troubleshooting - Section 3 - Bullet 2 | Diagnostic trouble codes |
| Signs of Wear & Troubleshooting - Section 3 - Bullet 3 | Evidence of fluid contamination |
| Signs of Wear & Troubleshooting - Section 3 - Header | When making repairs on electrical systems, in-depth diagnosis is needed before parts replacement. This includes checking: |
| Terminal Connection Quantity | 2 |
| Voltage | 12 |
| Weight (lb) | 10.55 |
| Width (in) | 7.3 |