SKU: 55597792639

Proform Lightning-Bolt 100 AMP Mini Alternator 10SI Mount # 66437

Sale price$267.75 Regular price$297.50
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Description

Proform Lightning-Bolt 100 AMP Mini Alternator 10SI Mount # 66437Ultimate Street Strip Alternator 80+ Amps @ Idle; 100+ Amps Top End Features: Mini Style; 12 Volt Unique Lightning Bolt Case 10SI Mounting Adapter Kit Included 100 AMP Internal Fan & 2. 7in. V Belt Pulley 1 Wire Hook up w Internal Regulator Only 7 lbs. 6. 61" Center on Center Mounting Multiple Patented Technologies PROFORM Parts Brand Product Sold Individually NOW AVAILABLE! It took a technological breakthrough to develop an alternator that is nearly

Ultimate Street/Strip Alternator

80+ Amps @ Idle; 100+ Amps Top End

Features:

  • Mini-Style; 12-Volt
  • Unique Lightning Bolt Case
  • 10SI Mounting Adapter Kit Included
  • 100 AMP Internal Fan & 2.7in. V-Belt Pulley
  • 1-Wire Hook-up w/ Internal Regulator
  • Only 7 lbs.
  • 6.61" Center-on-Center Mounting
  • Multiple Patented Technologies
  • PROFORM Parts Brand Product
  • Sold Individually

NOW AVAILABLE! It took a technological breakthrough to develop an alternator that is nearly 40% lighter than a 10SI that kicks out as many amps! The physics defying Lightning Bolt design generates 80+ amps at idle, and over 100 amps at the top endall this from a 7 lb, 98mm stator size alternator. It is light enough for the drag strip, but puts out the kind of amps that are needed on the street. On top of that, the Lightning-Bolt has its own unique aluminum housing that certainly will spin a head or two. Whether its fashion or function youre after, the Lightning Bolt delivers both.

This is a 12 volt, 1-wire hookup alternator. A V-belt style pulley is included, and various serpentine pulleys are sold separately. This alternator uses the same standard universal mounting configuration as 93mm mini alternators. This alternator includes a billet aluminum adapter kit that allows it to fit a standard 10SI mount (6.61" Center-on-Center)...so easy remove and replace!!

Amperage Output 100 AMP
Case Style Lightning-Bolt
Finish Natural
Mounting Center-on-Center (inches) 6.61"
Pulley Diameter 2 3/4"
Pulley Style V-Belt
Voltage 12 Volt
Wire Type 1-Wire

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 55597792639

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4.3 ★★★★★
Based on 26 reviews
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A
Verified Purchase
Amazon Customer
Boise, US
★★★★★ 5
East
Easy to replace and great fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
T
Verified Purchase
Tom
Lowell, US
★★★★★ 5
Perfect fit
Nice quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2025
S
Verified Purchase
stan Hithersay
Fort Morgan, US
★★★★★ 5
I'll get again.
Style: PA99892
Perfect fit and nice condition
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
R
Verified Purchase
Robert Diosdado
Grantham, US
★★★★★ 5
Great Value
Style: PA99892
Great value. Dealer wants $75 to replace engine filter. The filter is just as good as the OEM one. Total time to install is less than 3 minutes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 23, 2025
E
Eilanthe
New York, US
★★★★★ 5
fits like OEM
Style: PA99892
This fits a 2023 Civic Sport Touring without issue. It looks indistinguishable to the OEM filter. Getting the lid off the airbox is the hardest part as it is wedged in there pretty good. Other than that, this is a very do-able DIY job, and it's a lot cheaper than having the dealer do it. I have no concerns. Thumbs up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2025

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