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🔧 Unlock your LS engine’s full potential with precision mounting power!
The ICT Billet LS Truck Iron Block Interior Third Hole Bracket restores the missing 3rd mounting hole on GM LS iron blocks, enabling secure low mount accessory installation. Compatible with popular Silverado and LS truck engines, it’s crafted from aerospace-grade billet aluminum in the USA and includes spacers plus a drill template for easy, precise installation. Perfect for professionals upgrading alternators or fuel pumps with confidence and style.









| ASIN | B0B191KMX9 |
| Best Sellers Rank | #611,417 in Automotive ( See Top 100 in Automotive ) #142 in Automotive Replacement Alternator Brackets |
| Brand Name | ICT Billet |
| Customer Reviews | 4.7 4.7 out of 5 stars (26) |
| Manufacturer Part Number | 551921-LS01 |
| Material Type | Iron |
| Model Number | 551921-LS01 |
| Mounting Type | Engine Block Mount |
| UPC | 840117203488 |
Z**R
Support for ICT lower alternator mount - Camaro style
Used this as the 3rd support for my Low Mount alternator on an LQ4. Works great.
V**A
Great
Perfect fit
C**S
Great quality but for the price should include more
ICT Billet makes nice parts and stand behind their high quality parts. However, I was very shocked when it didn’t include the alternator bracket or anything other than the bracket that adds the additional support hole on iron block 5.3. For the price the drill bit and tap should be included. Luckily I had already bought the alternator bracket and ordered the bit & tap when I ordered this bracket. Worked perfect but the price seems ridiculously high.
Trustpilot
3 weeks ago
3 weeks ago