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![Engine Mount Thru-Bolt Hardware Kit for GM LS, LT Engines [Zinc Plated Steel]](https://www.jegs.com/images/mini_750/500/520/520-71223015hkr.jpg)
Vehicle Info NeededHOOKER HEADERSPART NUMBER: 520-71223015HKR
Engine Mount Thru-Bolt Hardware Kit for GM LS, LT Engines [Zinc Plated Steel]
$2179
9 left in stock
Ships on Oct 12, 2026
Lowest Price GuaranteeGM
Engine Mount Hardware
Engine Mount Hardware
Engine Mount Thru-Bolt Hardware KitGM LS, LT Engines Hemi Gen III Poly Mounts M12x1.75 x 150mm Flange Head Bolts Class 10.9 Includes 2 Bolts and 2 Nuts Steel Zinc Plated Sold as a Kit
Stock replacement engine mount through-bolts are hard to find because of their uncommon length. This kit supplies M12x1.75x150mm flange head bolts for GM LS/LT and Gen III Hemi engines running poly mounts or OEM rubber mounts.
Hooker BlackHeart 71223015HKR Features:
- M12x1.75x150mm class 10.9 flange head bolts for strength.
- Zinc plated for corrosion resistance.
- Works with aftermarket polyurethane mounts or OEM rubber mounts.
- Includes 2 flange head bolts and 2 flange nuts.
Part TypeMotor Mount Bolt
BrandHOOKER HEADERS
Package Height1.4
Package Width5.7
Package Length6.1
Weight0.76 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part Number71223015HKR
Package Qty1
Package TypeEA
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