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12557840 Upgrade 12.9 Grade Balancer Bolt for GM Harmonic Balancer Crank Bolt, for All gen III and gen IV LS engines except for LS7/LS9. 4.8L 5.3L 6.0L 6.2L LS1 LS2 LS3 LS6 L99 LM7 LR4 LMG LQ4 LQ9 L96
- Compatible with: 917-139 Harmonic Balancer Bolt fit for all Gen 3 and Gen 4 LS engines, including LS1, LS2, LS3, LS6, LQ4, LQ9, and models with 4.8L, 5.3L, 6.0L, 6.2L engines. (Note: Does NOT fit LS7/LS9 models).
- Exact Specifications: Features M16 x 2.0 thread pitch with an underhead length of 4.05 inches. The Grade 12.9 bolt is finished with an anti-corrosion coating for long-lasting protection.
- Replace OE# 12557840 LS Harmonic Balancer Bolt, 917-139 Harmonic Balancer Bolt.
- High-Strength Material: Crafted from high-grade Carbon Steel, heat-treated to achieve a Grade 12.9 rating. This ensures maximum tensile strength, preventing stretch and breakage under high stress.
- After-Sales Service: We offer 24 hours customer service and 1 year product service, If you are encounter product installation, product quality and other problems, please feel free to contact us.
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Compatible with: 917-139 Harmonic Balancer Bolt fit for all Gen 3 and Gen 4 LS engines, including LS1, LS2, LS3, LS6, LQ4, LQ9, and models with 4.8L, 5.3L, 6.0L, 6.2L engines.
(Note: Does NOT fit LS7/LS9 models).
^^Exact
^^High-Strength Material: Crafted from high-grade Carbon Steel, heat-treated to achieve a Grade 12.9 rating. This ensures maximum tensile strength, preventing stretch and breakage under high stress.
^^After-Sales Service: We offer 24 hours customer service and 1 year product service, If you are encounter product installation, product quality and other problems, please feel free to contact us.
(Note: Does NOT fit LS7/LS9 models).
^^Exact
Specifications
: Features M16 x 2.0 thread pitch with an underhead length of 4.05 inches. The Grade 12.9 bolt is finished with an anti-corrosion coating for long-lasting protection. ^^Replace OE# 12557840 LS Harmonic Balancer Bolt, 917-139 Harmonic Balancer Bolt.^^High-Strength Material: Crafted from high-grade Carbon Steel, heat-treated to achieve a Grade 12.9 rating. This ensures maximum tensile strength, preventing stretch and breakage under high stress.
^^After-Sales Service: We offer 24 hours customer service and 1 year product service, If you are encounter product installation, product quality and other problems, please feel free to contact us.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by Lumitek Return Policy
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