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- Powermaster 51487 Alt GM AD244 Black 220A 6 G...
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Item #:
210363398
Powermaster 51487 Alt GM AD244 Black 220A 6 Grv
Item #:
210363398
NZD 1321
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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In stock
Imported from USA store
QTY:
Order now and get it around Thursday, August 20
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Our Top Logistics Partners
For those building custom cars, it’s crucial to understand the power curve of an alternator and the importance of matched pulley ratios for optimal performance.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High Output Power
Delivers a robust 220 amps, ensuring your GM vehicle’s electrical system runs smoothly even under heavy loads. Ideal for performance upgrades and reliable day-to-day driving.
Durable Design
Constructed with high-quality materials and a sleek black finish, the Powermaster 51487 is designed to withstand harsh conditions while enhancing your vehicle’s aesthetics and performance.
Easy Installation
Designed for quick and straightforward fitting with 6 grooves, this alternator simplifies installation for a hassle-free upgrade, making it a perfect choice for both DIY enthusiasts and professionals.
Product Details
| Country of Origin | This item will be imported from US |
| Item Weight | 18 lbs (8.16 kg) |
| What is in the box | Powermaster 51487 Alt GM... For more details, please check description/product details |
Product Description
Powermaster 51487 Alt GM AD244 Black 220A 6 Grv
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Customer Questions & Answers
-
Question:
Why is understanding the alternator's power curve important?
Answer: It ensures accurate matching of components for better performance, especially in custom builds. -
Question:
What is the recommended pulley ratio for street driven cars?
Answer: At least 3:1 for typical cars; higher ratios may be necessary for automatic transmissions with low idle. -
Question:
Can high-speed use of alternators cause problems?
Answer: No, alternators can handle high speeds up to 20,000 RPMs for short bursts without issue.
POWERMASTER Alternators Editorial Review
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22 July 2026 · via Trustpilot
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“Product came earlier than expected (shipped from US to NZ), in about 3 weeks. No damages and product was exactly as advertised!”
15-Jul-26 · via Trustpilot
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“Easy to order, easy to track and the product is great to use. Also, the person-to-person (not automated) phone call I got to confirm that I'd received the item was wonderful ??”
11-Jul-26 · via Trustpilot
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NZD 1321
Order now and get it around Thursday, August 20
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
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Features & Benefits
- Understand the alternator's power curve for custom builds.
- Mismatched pulley ratios can cause performance issues, especially at idle.
- Output capacity varies based on alternator speed; it's not linear.
- Recommended pulley ratio for street cars is at least 3:1.
- High amperage alternators may require specific pulley considerations.
- Powermaster uses advanced testing to ensure optimal performance.
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