⚡ Power your ride like a pro—never settle for less!
The Powermaster 478028 Alternator is a high-performance 140-amp alternator featuring a 6-groove pulley and an innovative voltage regulator that allows real-time voltage adjustments. Designed for direct replacement, it enhances electrical system reliability, especially in vehicles with demanding power needs like upgraded stereos and air conditioning.
| ASIN | B000PDLXXK |
| Best Sellers Rank | #60,289 in Automotive ( See Top 100 in Automotive ) #42 in Automotive Replacement Starters & Alternators |
| Brand | Powermaster |
| Customer Reviews | 4.2 4.2 out of 5 stars (7) |
| Date First Available | 11 September 2014 |
| Item Weight | 4.54 g |
| Item model number | 478028 |
| Manufacturer | Powermaster |
| Manufacturer Part Number | 478028 |
| Model | Powermaster |
| OEM Part Number | 478028 |
| Product Dimensions | 23.62 x 19.3 x 18.54 cm; 4.54 g |
P**.
Nice upgrade for my classic car (‘87 GTA w/L98). Previously, it’s big stereo challenged the stock alternator especially at idle or with AC running. Had to keep an eye on voltmeter. Had no drama with direct replacement install/fitment. Now- much improved- I can relax a bit….
A**.
Had it in my car a year and a diode went out causing my car battery to drain with a parasitic draw of .68 amps. Killed it overnight.
M**.
Awesome product. Plugged right in to our 87 k5 chevy blazer. Handles the air conditioner and accessories without any issues. Professional packing and instructions.
J**E
Nice product -charges both battery's main & spare for sound system
Trustpilot
1 day ago
5 days ago
