8237-300 Amp XP High Amp Alternator for Hummer, Escalade, S-10, Blazer, Silverado, Avalanche, Suburban, Tahoe, Astro Van, Express Van, SSR, Sonoma, Sierra, Yukon, Savana (Cast Version)
8237-300 Amp XP High Amp Alternator for Hummer, Escalade, S-10, Blazer, Silverado, Avalanche, Suburban, Tahoe, Astro Van, Express Van, SSR, Sonoma, Sierra, Yukon, Savana
 
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Base Price: $699.95

Price with Selected Options: $699.95


Product Code: 8237-300XP-CAST

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PRODUCT FEATURES

8237-300 Amp XP High Amp Alternator

Our XP series high-output alternators are the ultimate upgrade when you need the absolute biggest and most sophisticated high output alternator on the planet. All of our XP series alternators are designed for one purpose, brute force idle output. When you need the most extreme idle output with the most sophisticated integrated alternator-monitoring system to prevent thermal failures is where the XP alternator delivers. Every Nations product we sell is held to the strictest quality standards in the industry. We only use 100% brand new USA made components along with one of the most rigorous testing before each individual alternator leaves our shop. Each XP series alternator comes standard with our custom hard-anodized billet aluminum pulley and 2-year replacement warranty. If you're looking for a significant overall increase in top end and idle output, the XP series alternator is your solution.

Quick Overview

Mounting Type Direct fit to OEM Mounting
Output Voltage 14.8
Idle Amperage 209
Hot Idle Amperage @ 200F 180
Max Amperage 270
Hot Max Amperage @ 200F 250
Pulley 6 Groove Hard Anodized 6061
Doesn't affect vehicles PCM, Check Engine Light or Charge Light Yes - Direct plug-in OEM PCM Compliant
SKU 8237-300-XP
Positive Output Stud Size 8MM x 1.25 Copper
Temperature Compensation Yes with 3-Step Thermal Protection
Rectifier 12 50 amp press fit diodes
Rectifier Heatsink Aluminum
Warranty Duration 2 Years


Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 4 Write a review.

  0 of 0 people found the following review helpful:
 
5 of 5 December 12, 2022
Reviewer: David from Shelburne Falls, MA United States  


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  0 of 0 people found the following review helpful:
 
5 of 5 Easy install, great performance so far August 20, 2021
Reviewer: Matt from Laguna Beach, CA United States  
Installed in 2004 suburban 2500 with 6.0 L LQ4 motor.  Went in no problem, existing belt fit fine.  Used the supplied harness adapter and cables.  Charging away, no warning lights.  Looks good too!

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  0 of 0 people found the following review helpful:
 
5 of 5 Excellent Product Quality! May 15, 2020
Reviewer: Benjamin B from Peoria, IL  
Bought a 300 amp alternator from another company and had to literally throw it away because of lack of performance.  Upgraded it to a Nations 300 Amp XP and my oh my!  Powerful, reliable, and on time.  Received my order  3 days after placing my order.  A+ Rating!

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  0 of 0 people found the following review helpful:
 
5 of 5 8237- 300XP September 14, 2019
Reviewer: Dominic Kowalski from St Thomas, ON Canada  
This is a mean alternator. Perfect for my service truck. I run a DC Oasis air compressor which will draw 200amps peak, this alternator didn’t even hesitate, now I can confidently Show
Up and not worry about having the juice to do a job, good for boosting tractor trailers too. Yes the price is up there but in the end, worth each penny.

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