38770 Harmonic Balancer Bolt for Small Block Chevy Harmonic Balancer

★★★★★ 4.9 128 reviews

US$4.40
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US$4.40
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Free shipping Free 30-day returns

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Product details

Management number 233913522 Release Date 2026/06/27 List Price US$4.40 Model Number 233913522
Category

use: The Harmonic Balancer Bolt is primarily used to connect and secure the Harmonic Balancer on the engine to the crankshaft. A harmonic balancer, also known as a vibration damper, is a key component designed to reduce torsional vibration when the engine is running. These vibrations are usually caused by an imbalance of forces generated when the engine cylinders are ignited. By reducing these vibrations, harmonic balancers help extend the life of the engine and its related components, improving the comfort and reliability of the entire vehicle. Why use: 1. Reduce vibration and noise: When the engine is running, significant torsional vibrations occur due to the firing sequence of the cylinders and the reciprocating motion of the pistons. If these vibrations are not effectively suppressed, they not only affect driving comfort, but can also cause damage to the engine and its surrounding components. The Harmonic Balancer, through its internal rubber elements or liquid filling, is able to absorb and disperse this vibration energy, thereby reducing the vibration and noise transmitted to the body and other components. 2. Protect engine parts: Torsional vibration can cause fatigue damage or even fracture of critical components such as crankshafts, connecting rods, and bearings. By installing the Harmonic Balancer, the vibration stresses on these components can be effectively reduced, thereby extending their service life. 3. Improve driving stability: Stable engine operation is the basis for ensuring a smooth driving of the vehicle. By reducing vibrations, the Harmonic Balancer contributes to the smoothness of the engine, which in turn improves the driving stability of the vehicle. 4. Enhance performance: In high-performance vehicles, the vibrations generated by the engine are even more intense. The use of high-quality Harmonic Balancer Bolt and Harmonic Balancer allows for better control of these vibrations, ensuring that the engine can continue to deliver consistent and stable power, thus improving the overall performance of the vehicle. 5. Ensure safety: Excessive vibration can cause engine components to loosen or fall off, which can lead to serious mechanical failure. By installing and regularly inspecting the Harmonic Balancer Bolt and its connected harmonic balancer, potential safety hazards can be identified and resolved in a timely manner, ensuring the safety of the vehicle and passengers. In summary, the Harmonic Balancer Bolt and its connected harmonic balancer play a vital role in the engine. They provide more reliable, comfortable and efficient operation of vehicles by reducing vibrations, protecting components, improving driving stability and performance, and ensuring safety.

  • 【Professional Obsidian, Understated Luxury】The deep black plating gives the Harmonic Balancer Bolt a low-key and luxurious style, which blends perfectly with any high-performance engine compartment and shows extraordinary taste.
  • 【Precise Customization, Born for Chevrolet】This black bolt is precisely designed and manufactured to ensure a perfect match with every detail of the small Chevrolet engine, providing a solid guarantee for the stable operation of the engine.
  • 【Rugged, the power behind the black】Hidden under the black exterior is the superior strength of Grade 8 steel, which can withstand high-intensity vibration and extreme working conditions, ensuring that the bolt is durable and lives up to its trust.
  • 【 Performance Improvement, Black Accelerates Passion】Designed for racing enthusiasts looking for extreme performance, the Black Harmonic Balancer Bolt reduces engine vibration and improves acceleration response for every sprint on the track.
  • 【Trusted Choice, Black Quality Assurance】Among the many high-performance automotive parts, this black Harmonic Balancer Bolt stands out for its excellent quality and consistent performance, and has become the trusted choice of many Chevrolet owners.
ASIN B0D95VTTR6
Brand Aulpq
Color Black
Set Name Single
Head Type Hex
Size Name 3/8"-16 UNC
Metal Type Alloy Steel
Unit Count 1.0 Count
Part Number 38770
Thread Size 3/8"-16 UNC
Thread Type Unc
Drive System Rear-Wheel Drive
Finish Types glossy
Manufacturer Aulpq
Thread Class 2A
Thread Style Right Hand
Fastener Size 3/8"-16 UNC
Fastener Type Hexagon Bolt
Item Hardness Grade 8
Material Type Alloy Steel
Item Type Name Harmonic Balancer Bolt
Exterior Finish Black
Number Of Items 1
Thread Coverage Fully Threaded
Screw Head Style Hex
Manufacturer Grade Grade 8
Included Components Harmonic Balancer Bolt
Maximum Shear Strength 580 MPa
Compatible Groove Diameter 0.38 Inches

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4.9 out of 5
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128 ratings | 52 reviews
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