Bolt Cylinder Head

View:

Cylinder head bolt tightening torque kit
- Unit Price: 0.3~0.8USD
- Brand: NSP/FORGM/UA
- Min. Order: 40 piece/pieces
- Model No.: 22321-23000/81020800
- Place of Origin: CHINA
CYL BOLTS 22321-23000 81020800 – High-Strength Cylinder Head Bolt for Engine Integrity Engine cylinder head bolts play a pivotal role in maintaining engine performance and safety, and the CYL BOLTS 22321-23000 81020800 stands out as a premium fastening solution engineered for durability, precision, and reliability....

Contact Now
Automotive Cylinder Head Fasteners
- Unit Price: 0.3~0.8USD
- Brand: NSP/FORGM/UA
- Min. Order: 40 piece/pieces
- Model No.: 81018000/7710582
- Place of Origin: CHINA
Automotive Cylinder Head Fasteners: The Core Auto Part Guarding Engine Sealing and PowerIn the Auto Parts system of the automotive power system, Automotive Cylinder Head Fasteners are the "power anchors" that ensure a tight connection between the engine block and the cylinder head. It includes key fastening...

Contact Now
Multi-Vehicle Engine Repair & Rebuild Set
- Unit Price: 0.3~0.8USD
- Brand: NSP/FORGM/UA
- Min. Order: 40 piece/pieces
- Model No.: 81016500/ME200426/ME200427
- Place of Origin: CHINA
Multi-Vehicle Engine Repair & Rebuild Set: Universal Auto Parts for Engine Repair and Rebuilding of Multiple VehiclesIn the field of automotive repair and rebuilding, the Multi-Vehicle Engine Repair & Rebuild Set is a highly practical core Auto Part. Designed specifically for the repair and rebuilding needs of...

Contact Now
Cylinder Head Bolt Kit - Engine Rebuilding Fasteners
- Unit Price: 0.3~0.8USD
- Min. Order: 40 piece/pieces
- Model No.: 81012800/9550162/94455667/14-32145-01
- Place of Origin: NINGBO,CHINA
Cylinder Head Bolt Kit - Engine Rebuilding Fasteners: The Core Fastening Auto Part for Engine RebuildingIn the Auto Parts system for automotive engine rebuilding and maintenance, the Cylinder Head Bolt Kit - Engine Rebuilding Fasteners is the "key lock" that determines the quality of engine reconstruction. Designed...

Contact Now
Full Engine Gasket Kit
- Unit Price: 0.3~0.8USD
- Brand: NSP/FORGM/UA
- Min. Order: 40 piece/pieces
- Model No.: 81008000/0204.73/020498
- Place of Origin: CHINA
Full Engine Gasket Kit: The Core Auto Part Guarding the Comprehensive Sealing of the EngineIn the Auto Parts system of the automotive power system, the Full Engine Gasket Kit is a "comprehensive guardian" that ensures the sealing performance between various engine components. It includes gaskets required for key...

Contact Now
Cylinder Head Bolt and Washer Set
- Unit Price: 0.3~0.8USD
- Brand: NSP/FORGM/UA
- Min. Order: 40 piece/pieces
- Model No.: 7795992/607518/95512623
- Place of Origin: CHINA
Cylinder Head Bolt and Washer Set: Core Auto Parts Securing the Engine's Sealing Line of DefenseIn the Auto Parts system of the automotive power system, the Cylinder Head Bolt and Washer Set is a "golden combination" ensuring the sealing performance of the engine block. It perfectly combines high-strength bolts with...

Contact Now
TTY Cylinder Head Bolt Set
- Unit Price: 0.3~0.8USD
- Brand: NSP/FORGM/UA
- Min. Order: 40 piece/pieces
- Model No.: 7701471373/11059-00QAA
- Place of Origin: CHINA
TTY Cylinder Head Bolt Set: Professional Auto Parts Ensuring Precise Engine Operation In the key Auto Parts of the automotive power system, the TTY Cylinder Head Bolt Set (Torque-to-Yield Cylinder Head Bolt Set) stands out as a "precision guardian" for engine block sealing and core component safety, thanks to its...

Contact Now
Universal Cylinder Head Bolt
- Unit Price: 0.3~0.8USD
- Brand: NSP/FORGM/UA
- Min. Order: 40 piece/pieces
- Model No.: 7700738986/7700738987
- Place of Origin: CHINA
Universal Cylinder Head Bolt: The Core Auto Part for Engines Compatible with Multiple Vehicle ModelsIn the Auto Parts system of the automotive power system, the Universal Cylinder Head Bolt is the "key link" that ensures a tight fit between the engine block and the cylinder head. With its excellent universality, it...

Contact Now
Complete Replacement Set with Washers
- Unit Price: 0.3~0.8USD
- Brand: NSP/FORGM/UA
- Min. Order: 40 piece/pieces
- Model No.: 7696197/1549981/7696197
- Place of Origin: CHINA
Complete Replacement Set with Washers: High-Quality Auto Parts Adapting to Core Automotive ComponentsIn the field of automotive maintenance and care, a reliable Complete Replacement Set with Washers is a key Auto Part that ensures the stable operation of vehicles. It covers replacement components required for...

Contact Now
Complete Engine Replacement Set with Washers
- Unit Price: 0.3~0.8USD
- Min. Order: 40 piece/pieces
- Model No.: 1331316/7701065098
- Place of Origin: NINGBO,CHINA
Complete Engine Replacement Set with Washers: The All-Round Auto Part Revitalizing Engine PerformanceIn the field of automotive maintenance and upgrading, a high-quality Complete Engine Replacement Set with Washers is a core Auto Part that can essentially "revive" an aging engine. It not only includes all key...

Contact Now
Cylinder Head Replacement Bolts
- Unit Price: 0.3~0.8USD
- Brand: NSP/FORGM/UA
- Min. Order: 40 piece/pieces
- Model No.: 11128513128
- Place of Origin: CHINA
Cylinder Head Replacement Bolts: The Key Auto Parts Guarding the Core of Automotive Power In the complex power system of an automobile, every Auto Part undertakes a unique mission, and Cylinder Head Replacement Bolts are undoubtedly the "invisible guardians" ensuring the stable operation of the engine. Though...

Contact Now
Subaru Boxer Engine Head Bolts
- Unit Price: 0.3~0.8USD
- Brand: NSP/FORGM/UA
- Min. Order: 40 piece/pieces
- Model No.: 11095AA042
- Place of Origin: NINGBO,CHINA
Subaru Boxer Engine Head Bolts: The Exclusive Fastening Core of Subaru Boxer Engines In the performance-focused field of Auto Parts, Subaru Boxer Engine Head Bolts are a "structural stabilizer" tailor-made for Subaru's iconic Boxer engines. Unlike traditional inline or V-type engines, Subaru Boxer engines feature...

Contact Now
BMW Cylinder Head Bolt Kit
- Unit Price: 0.3~0.8USD
- Brand: NSP/FORGM/UA
- Min. Order: 40 piece/pieces
- Model No.: 11121721939
- Place of Origin: CHINA
BMW Cylinder Head Bolt Kit: The Precision Fastening Solution for BMW Engines In the field of high-end Auto Parts, the BMW Cylinder Head Bolt Kit is a "core fastening system" specially designed for various BMW engine series. BMW engines are characterized by high power density and low fuel consumption, and the...

Contact Now

China Bolt Cylinder Head Suppliers

The cylinder head bolt is a slender rod in appearance, with a thread at one end, which is used to screw the corresponding threaded hole on the cylinder body; The other end has a head that is easy for the tool to tighten, and the common head shapes are hexagonal, dodecagon, etc., to adapt to different wrenches. The rod part of the bolt is uniform in diameter, and the surface is specially processed to have a high finish to ensure that it can smoothly pass through the bolt holes of the cylinder head and cylinder block during tightening. Its material is usually selected high-strength alloy steel, such as chrome-molybdenum alloy steel, etc., such materials have excellent strength and toughness, and can withstand the huge mechanical and thermal stress generated when the engine is working.

How it works:

During the engine assembly process, the technician will use a professional torque wrench to tighten the cylinder head bolts according to the specified torque value and tightening sequence. This is because the appropriate torque can cause the bolt to produce a certain tensile deformation, thus forming a pre-tightening force inside the bolt. When the engine is working, the high temperature and high pressure gas generated by the Combustion Chamber will produce upward thrust on the cylinder head, trying to separate the cylinder head from the cylinder block. At this time, the tension borne by the cylinder head bolt will further increase, but because it has applied enough preload force during assembly, the bolt can overcome the thrust of the gas, maintain a close connection between the cylinder head and the cylinder block, and ensure the normal operation of the engine. At the same time, during the long-term operation of the engine, the bolt will be subjected to alternating loads, that is, the tension it bears will change within a certain range, which requires the cylinder head bolt to have good fatigue resistance to ensure that there will be no loosening or breakage within the specified service life.

Common types:

Ordinary bolt: The structure is relatively simple, widely used in some ordinary models that have not particularly high engine performance requirements. Its manufacturing process is mature and the cost is low, but its performance is relatively limited under high strength loads and complex working conditions.

High-strength bolts: made of special high-strength materials, through a strict heat treatment process, with higher strength and yield limits. This type of bolt can withstand greater preload and working load, suitable for high-performance engines and engines operating under harsh conditions, such as racing engines, construction machinery engines, etc.

Bolts with elastic elements: Elastic elements are designed inside or at the head of the bolt, such as dish-spring washers. These elastic elements can compensate the bolt preload loss caused by thermal expansion, cold contraction, vibration and other factors in the working process of the engine to a certain extent, improve the reliability and stability of the bolt connection, often used in the engine with high reliability requirements for the connection.