Ensure precise and damage-free piston installation with the ARP 80.5mm Piston Ring Compressor. This essential engine building tool is engineered to accurately compress piston rings, allowing for smooth, controlled insertion of the piston into the cylinder bore without causing damage to delicate rings or cylinder walls. Its tapered design guides the piston straight into the bore, making engine assembly more efficient and reliable.

Crafted for durability and consistent performance, this ARP ring compressor is a vital component in any professional or enthusiast's toolbox, designed to stand up to repeated use during engine rebuilds and performance upgrades.

• Precisely sized for 80.5mm cylinder bores
• Designed to compress piston rings safely and evenly
• Facilitates smooth, damage-free piston installation
• Durable construction for long service life
• Manufacturer Part Number: 901-8050

Ensure a seamless engine build with the ARP 4.110in Tapered Piston Ring Compressor. Designed for professional engine builders and performance enthusiasts, this precision tool eliminates the risk of broken rings or marred piston skirts during short block assembly. Unlike generic adjustable compressors, this fixed-bore tool provides a smooth, gradual taper that guides the ring pack into the cylinder with perfect alignment.

Each compressor is CNC-machined from premium 6061-T6 billet aluminum and finished with a hard-anodized coating. This construction ensures the tool maintains its strict tolerances and resists wear across multiple high-performance builds. The true-bore design is specifically sized for 4.110-inch bores, providing the exact compression needed for standard and file-fit rings.

• Bore Size: 4.110in
• Material: 6061-T6 Billet Aluminum
• Finish: Hard-Anodized Black
• Design: Fixed Tapered Bore for precise ring compression
• Manufacturer Part Number: 900-1100

This five-piece set of ARP 12-point metric bolts (MPN 773-1010) provides a high-strength, corrosion-resistant fastening solution for demanding automotive applications. These fasteners are manufactured from ARP 300 series stainless steel, a proprietary alloy that is polished to a mirror finish and offers a typical tensile strength of 170,000 psi, making them significantly stronger than standard Grade 8 hardware.

The compact 12-point head design is ideal for recessed or tight-clearance areas where traditional hex heads may be difficult to access with a socket. This design also provides more surface area for better torque distribution and reduced risk of rounding. These M10 x 1.25 bolts feature an 80mm underhead length, perfect for custom brackets, engine accessories, and structural components where reliability and aesthetics are paramount.

• Manufacturer Part Number: 773-1010
• Material: ARP 300 Stainless Steel
• Thread Size: M10 x 1.25
• Underhead Length: 80mm
• Head Style: 12-Point
• Tensile Strength: 170,000 psi
• Quantity: 5 per package

Secure your critical components with the superior strength and corrosion resistance of ARP 773-1008 stainless steel bolts. These fasteners are manufactured from ARP 300 alloy, a proprietary stainless steel rated at 170,000 psi tensile strength. This material choice provides a significantly higher safety margin than standard Grade 8 hardware while remaining virtually impervious to rust and pitting, making them ideal for exhaust manifolds, accessory brackets, and high-heat environments.

Featuring a compact 12-point head, these bolts allow for easier tool access in tight clearances compared to traditional hex heads. Each bolt is precision-machined for consistent thread engagement and features a polished finish that maintains a professional look under the hood. This 5-piece kit is a versatile solution for mechanics and builders requiring dependable, high-strength metric fasteners.

• Manufacturer Part Number: 773-1008
• Thread Pitch: M10 x 1.25
• Under Head Length (UHL): 60mm
• Head Style: 12-Point
• Material: ARP 300 Stainless Steel
• Tensile Strength: 170,000 psi
• Quantity: 5 Bolts per package

Secure your critical components with the precision and strength of ARP 773-1007 stainless steel bolts. These fasteners are engineered to exceed the quality of standard hardware, offering a reliable solution for high-performance automotive applications where corrosion resistance and tensile strength are paramount.

These M10 x 1.25 bolts feature a 50mm under-head length and a specialized 12-point head design. The 12-point profile provides more surface area for tool engagement, allowing for consistent torque application while maintaining a smaller footprint than traditional hex heads—ideal for tight clearances in engine bays or chassis components. Constructed from high-quality stainless steel and polished to a mirror finish, they provide lasting durability against the elements.

• Manufacturer Part Number: 773-1007
• Thread Pitch: M10 x 1.25
• Under Head Length (UHL): 50mm
• Head Style: 12-Point
• Material: Polished Stainless Steel
• High corrosion resistance for long-term reliability

Upgrade your hardware with these precision-engineered ARP stainless steel bolts. Featuring a 12-point head design, these fasteners allow for easier tool access in tight clearances compared to standard hex heads. The polished stainless steel construction provides exceptional corrosion resistance and a professional finish for engine, accessory, or chassis applications where both strength and aesthetics are required.

• Manufacturer Part Number: 773-1005
• Thread Size: M10 x 1.25
• Underhead Length: 40mm
• Head Style: 12-Point
• Material: Polished Stainless Steel
• Quantity: 5 per package

Secure your components with the strength and corrosion resistance of ARP stainless steel fasteners. This 5-pack of M10 x 1.25 bolts features a 35mm under-head length, making them ideal for high-stress automotive applications where standard hardware may fail or succumb to rust. The polished stainless steel finish provides a professional look while resisting the elements in engine bay or chassis environments.

The 12-point head design offers a smaller footprint than a traditional hex head, allowing for better tool clearance in tight spaces and more even distribution of torque. These bolts are engineered to meet ARP's rigorous standards for tensile strength and dimensional accuracy, ensuring a reliable fit for your specific assembly needs.

• Manufacturer Part Number: 773-1004
• Thread Size: M10 x 1.25
• Under-Head Length: 35mm
• Head Style: 12-Point
• Material: Polished Stainless Steel
• Quantity: Pack of 5

Upgrade your hardware with the ARP 773-1003 stainless steel fastener kit. These high-strength M10 x 1.25 x 30mm bolts are designed to provide superior corrosion resistance and a professional, polished finish for engine accessories, brackets, and external components.

The 12-point head design offers a smaller footprint than standard hex bolts, facilitating easier socket access in tight spaces while ensuring even load distribution during torqueing. Each bolt is manufactured to ARP's exacting tolerances to ensure consistent clamping force and durability in demanding automotive environments.

• Thread Size: M10 x 1.25
• Underhead Length: 30mm
• Head Style: 12-Point
• Material: Stainless Steel
• Quantity: Pack of 5
• Manufacturer Part Number: 773-1003

Upgrade your vehicle's hardware with this ARP 773-1002 stainless steel bolt kit. Engineered for both durability and aesthetics, these fasteners are manufactured from high-strength stainless steel that is virtually impervious to rust and corrosion. The 12-point head design offers a smaller profile than traditional hex heads, allowing for easier socket access in tight engine bay or chassis environments.

• Manufacturer Part Number: 773-1002
• Thread Pitch: M10 x 1.25
• Underhead Length: 25mm
• Head Style: 12-Point
• Material: Stainless Steel
• Quantity: 5 Bolts per package

Each bolt is precision-machined to ensure consistent tolerances and reliable clamping force. These are ideal for automotive applications where a high-performance, polished fastener is required to withstand the elements without degrading.

This 5-piece set of ARP 12-point bolts (MPN: 772-1011) provides professional-grade fastening with exceptional corrosion resistance. Engineered from high-quality stainless steel, these fasteners are designed for performance applications where both structural integrity and a clean, polished appearance are required.

• Thread Size: M10 x 1.50
• Under-Head Length: 90mm
• Head Style: 12-Point
• Material: Stainless Steel
• Quantity: 5 bolts per package
• Manufacturer Part Number: 772-1011

The 12-point head design offers a smaller profile than standard hex bolts, facilitating easier tool access in tight clearances while providing more surface area for consistent torque application. Each bolt features precision-machined threads for smooth installation and reliable clamping force.

Secure your build with ARP 772-1005 metric 12-point bolts, engineered for high-performance applications that demand both extreme strength and superior corrosion resistance. These fasteners are manufactured from ARP's proprietary 300 stainless steel, offering a polished finish that won't rust or chip under harsh automotive conditions.

Rated at a minimum 170,000 psi tensile strength, these M10 fasteners provide a significant margin of safety over standard Grade 8 hardware. The compact 12-point head design is specifically chosen for tight clearances, allowing for better tool access in recessed or restricted areas where a traditional hex head might fail.

• Thread Size: M10 x 1.50
• Underhead Length: 40mm
• Material: ARP 300 Stainless Steel
• Head Style: 12-Point
• Tensile Strength: 170,000 psi
• Quantity: Pack of 5
• Part Number: 772-1005

Install critical components with confidence using this ARP M10x1.50x35 12-point stainless steel bolt kit. Manufactured by ARP, a leader in automotive fasteners, these bolts deliver precise fitment and lasting durability for a range of demanding applications.

Crafted from high-grade stainless steel, these fasteners are engineered to resist corrosion and maintain integrity even in harsh underhood or chassis environments. The 12-point head design allows for excellent wrench engagement, facilitating higher torque values and easier installation in tight clearances compared to standard hex head bolts.

• Material: High-strength Stainless Steel
• Thread Size: M10 x 1.50mm
• Length: 35mm
• Head Type: 12-Point
• Quantity: 5 bolts per package
• Manufacturer Part Number: 772-1004

Secure your components with the professional-grade ARP Stainless Steel 12-point bolt kit (MPN: 772-1003). These M10 x 1.50 fasteners are engineered from a high-strength, corrosion-resistant stainless steel alloy, providing a durable solution that maintains its finish even in harsh environments. The 12-point head design provides a greater surface area for socket engagement, allowing for more precise torque application while offering a compact footprint for tight clearances where traditional hex heads may not fit.

• Thread Size: M10 x 1.50
• Underhead Length: 30mm
• Material: Corrosion-resistant Stainless Steel
• Head Style: 12-Point
• Quantity: Pack of 5
• Manufacturer Part Number: 772-1003

Upgrade your hardware with this professional-grade set of ARP stainless steel fasteners. These M8 x 1.25 bolts feature a 16mm underhead length and are manufactured from high-strength stainless steel to provide exceptional corrosion resistance and a polished finish that won't chip or peel. The 12-point head design offers a smaller profile than traditional hex bolts while providing more surface area for socket engagement, ensuring reliable torque application in tight engine bay spaces.

• Thread Size: M8 x 1.25
• Underhead Length: 16mm
• Head Style: 12-Point
• Material: High-strength Stainless Steel
• Quantity: Set of 5 bolts
• Manufacturer Part Number: 771-1017

This 5-pack of ARP 771-1015 fasteners provides a professional-grade solution for securing automotive components where high strength and corrosion resistance are required. Manufactured from ARP's premium 300 series stainless steel, these bolts are polished to a mirror finish, making them as suitable for show-quality engine bays as they are for demanding mechanical environments.

The 12-point head design provides a larger contact area for socket engagement compared to standard hex bolts, allowing for more consistent torque application and better clearance in recessed or tight spaces. These metric fasteners are precision-machined to ensure exact thread engagement and reliable clamping force.

• Manufacturer Part Number: 771-1015
• Material: Polished 300 Stainless Steel
• Thread Size: M8 x 1.25
• Underhead Length: 100mm
• Head Style: 12-Point
• Package Quantity: 5 Bolts

These ARP high-strength fasteners are engineered to provide superior corrosion resistance and professional-grade durability. Manufactured from a proprietary stainless steel alloy, these M8 x 1.25 bolts offer a clean, polished look while maintaining higher tensile strength than standard hardware. The 12-point head design allows for a smaller socket diameter, making these ideal for applications with tight clearance requirements where high torque delivery is essential.

• Thread Size: M8 x 1.25
• Underhead Length: 70mm
• Head Style: 12-Point
• Material: Stainless Steel
• Quantity: Set of 5 bolts
• Manufacturer Part Number: 771-1011

Secure your components with the superior strength and corrosion resistance of ARP stainless steel fasteners. These 12-point bolts are engineered to exceed the performance of standard hardware, offering a high-tensile strength solution that maintains a polished, show-quality finish even in harsh environments. The 12-point head design provides a greater surface area for torque application and allows for easier tool access in tight clearances compared to traditional hex heads.

• Manufacturer Part Number: 771-1010
• Material: Maintenance-free Stainless Steel
• Thread Size: M8 x 1.25
• Under Head Length: 65mm
• Head Style: 12-Point
• Quantity: Set of 5

These ARP 12-point stainless steel bolts provide a high-strength, corrosion-resistant fastening solution for demanding automotive applications. Rated at approximately 170,000 psi tensile strength, these fasteners are manufactured from ARP 300 material, making them significantly stronger than standard Grade 8 hardware while remaining virtually impervious to rust.

The compact 12-point head design allows for better socket clearance in tight spaces compared to traditional hex heads. These fasteners are precision-machined with rolled threads to ensure superior fatigue life and consistent torque loading during installation.

• Manufacturer Part Number: 771-1009
• Thread Size: M8 x 1.25
• Under Head Length: 60mm
• Head Style: 12-Point
• Material: ARP 300 Stainless Steel
• Tensile Strength: 170,000 psi
• Quantity: 5 bolts per package

Secure your components with the precision and strength of ARP stainless steel fasteners. This set of five 12-point bolts is engineered to provide superior corrosion resistance and high-tensile strength, making them an ideal upgrade for accessory mounting, engine bay dress-up, or any application requiring a durable, high-quality fastener. The 12-point head design allows for a smaller wrenching diameter and higher torque application compared to standard hex heads, which is critical in tight-clearance environments.

• Manufacturer Part Number: 771-1005
• Material: High-quality stainless steel for maximum corrosion resistance
• Head Style: 12-point
• Thread Size: M8 x 1.25
• Under Head Length: 40mm
• Quantity: Set of 5 bolts

Ensure maximum reliability and corrosion resistance with this set of five ARP 12-point fasteners. These M8 x 1.25 bolts feature a 35mm under head length and are manufactured from high-strength stainless steel. Ideal for applications where fastener durability and a clean, professional finish are critical, ARP hardware is engineered to exceed the tolerances and performance of standard OE fasteners.

• Manufacturer Part Number: 771-1004
• Thread Size: M8 x 1.25
• Under Head Length (UHL): 35mm
• Head Style: 12-Point
• Material: Stainless Steel
• Quantity: Set of 5

These ARP 12-point stainless steel fasteners (MPN 771-1003) provide a high-strength, corrosion-resistant solution for automotive assembly. Engineered to exceed standard hardware specifications, these metric bolts feature a polished finish that resists tea and oxidation, making them ideal for brackets, accessory mounting, and trim where both durability and aesthetics are required.

The compact 12-point head design allows for more surface area engagement during torquing and offers superior tool clearance in tight engine bay compartments compared to traditional hex-head bolts.

• Brand: ARP
• Part Number: 771-1003
• Thread Size: M8 x 1.25
• Underhead Length: 30mm
• Head Style: 12-Point
• Material: Stainless Steel
• Quantity: 5 Bolts per Package

These ARP 12-point metric bolts provide a high-strength, corrosion-resistant fastening solution for a variety of automotive and custom applications. Manufactured from ARP's proprietary stainless steel alloy, these fasteners offer superior resistance to rust and oxidation while maintaining a polished, professional appearance for engine accessories, brackets, and trim.

The 12-point head design provides a larger surface contact area for tools, allowing for more consistent torque application and improved clearance in tight spaces compared to traditional hex-head hardware. Rated at 170,000 psi tensile strength, they are significantly stronger than standard Grade 8 hardware.

• Manufacturer Part Number: 771-1002
• Thread Size: M8 x 1.25
• Underhead Length: 25mm
• Head Style: 12-Point
• Material: Polished Stainless Steel
• Tensile Strength: 170,000 psi
• Quantity: Pack of 5 bolts

Upgrade your vehicle hardware with the ARP 771-1001 stainless steel 12-point bolt kit. These fasteners are engineered for superior strength and extreme corrosion resistance, making them a perfect replacement for standard Grade 8 or OE hardware in environments prone to moisture or heat. The compact 12-point head design offers a smaller footprint and better socket engagement, which is essential for tight clearances in engine bays or chassis components.

Forged from high-quality stainless steel, these bolts provide a clean, polished finish that maintains its appearance over time without the risk of rusting or pitting. Each package includes five precision-manufactured bolts to ensure consistent clamping force across your assembly.

• Manufacturer Part Number: 771-1001
• Thread Size: M8 x 1.25
• Under Head Length: 20mm
• Head Style: 12-Point
• Material: Stainless Steel
• Quantity: 5 Bolts per package

Upgrade your hardware with the ARP 770-1017 fastener kit. These M6 x 1.00 x 16mm bolts are manufactured from ARP's proprietary Stainless 300 alloy, providing a polished look with exceptional resistance to rust and corrosion. Rated at approximately 170,000 psi tensile strength, these fasteners are significantly stronger than standard industrial hardware.

The compact 12-point head design allows for easier socket engagement in tight engine bay clearances and provides a professional, finished appearance. These bolts are ideal for accessory brackets, valve covers, and various trim components where durability and aesthetics are critical.

• Thread Size: M6 x 1.00
• Under Head Length: 16mm
• Material: Stainless 300 Alloy
• Head Style: 12-Point
• Tensile Strength: 170,000 psi
• Quantity: 5 bolts per package
• Manufacturer Part Number: 770-1017

Upgrade your hardware with the professional-grade strength and finish of ARP stainless steel fasteners. These M6 x 1.00 12-point bolts are engineered to exceed standard aerospace hardware specifications, offering a rated tensile strength of 170,000 psi. This makes them significantly stronger than standard Grade 8 hardware while providing superior corrosion resistance for engine accessories, brackets, and trim.

The compact 12-point head design provides a smaller footprint and easier socket access in confined spaces compared to traditional hex heads. Each fastener features precision-rolled J-form threads to ensure maximum fatigue life and consistent clamping force during installation.

• Thread Size: M6 x 1.00
• Under Head Length: 12mm
• Head Style: 12-Point
• Material: ARP 300 Stainless Steel
• Tensile Strength: 170,000 psi
• Quantity: 5 Bolts per package
• Manufacturer Part Number: 770-1016

This 5-pack of ARP stainless steel fasteners provides a high-strength, corrosion-resistant solution for specialized automotive applications. Engineered to surpass the strength of standard Grade 8 hardware, these bolts are manufactured from a proprietary stainless steel alloy that is polished to a mirror finish, making them virtually impervious to rust and corrosion.

The 12-point head design increases the surface area for wrench engagement, allowing for more secure torque delivery while preventing head rounding. These fasteners are ideal for engine accessories, brackets, and trim components where both structural integrity and a show-quality finish are required.

• Manufacturer Part Number: 770-1009
• Thread Size: M6 x 1.00
• Under Head Length: 60mm
• Head Style: 12-Point
• Material: High-strength Stainless Steel
• Quantity: Pack of 5 bolts

Upgrade your vehicle's hardware with the ARP 770-1004 M6 x 1.00 x 35mm 12-point bolts. These fasteners are manufactured from high-grade ARP 300 stainless steel, which is specially alloyed to remain virtually impervious to rust and corrosion. Unlike chrome-plated hardware, these bolts are polished to a mirror-like finish that will not chip or peel over time.

Ideal for securing accessories, covers, and brackets, these bolts offer superior tensile strength compared to standard hardware. The compact 12-point head design provides a smaller footprint and easier tool access in tight engine bay clearances. Each fastener is precision-machined to ensure consistent torque loading and reliable thread engagement.

• Thread Size: M6 x 1.00
• Underhead Length: 35mm
• Head Style: 12-Point
• Material: ARP 300 Stainless Steel
• Finish: Polished
• Package Quantity: 5 Bolts
• Manufacturer Part Number: 770-1004

These ARP stainless steel 12-point bolts (MPN 770-1003) provide a superior alternative to standard hardware for automotive and specialty applications. Engineered for both durability and aesthetics, these fasteners are manufactured from ARP's proprietary Stainless 300 material, which is rated at a 170,000 psi tensile strength. This makes them significantly stronger than Grade 8 hardware while remaining virtually impervious to rust and corrosion.

• Thread Size: M6 x 1.00
• Under Head Length: 30mm
• Head Style: Compact 12-Point
• Material: ARP Stainless 300
• Tensile Strength: 170,000 psi
• Quantity: 5 bolts per package

The 12-point head design offers a smaller footprint and more surface area for wrenching, making these bolts ideal for tight clearances where a traditional hex head may be difficult to access. Each fastener is precision-machined to ensure consistent thread engagement and clamping force.

Secure your project with the professional-grade reliability of ARP 770-1002 stainless steel bolts. These fasteners are precision-machined for superior corrosion resistance and a clean, polished finish that won't rust or pit over time. The 12-point head design provides a higher torque capacity and a more compact footprint than traditional hex heads, making them an ideal solution for tight clearances where socket access is limited.

• Manufacturer Part Number: 770-1002
• Thread Size: M6 x 1.00
• Underhead Length: 25mm
• Head Style: 12-Point
• Material: Stainless Steel (SS)
• Quantity: Set of 5 bolts

Secure your components with the superior strength and corrosion resistance of ARP 770-1001 stainless steel fasteners. These 12-point bolts are manufactured from ARP 300 series stainless steel alloy and polished to a mirror finish, making them an ideal choice for both high-performance mechanical assemblies and show-quality engine bays.

• Thread Size: M6 x 1.00
• Under Head Length: 20mm
• Head Style: Compact 12-Point
• Material: 300 Series Stainless Steel
• Tensile Strength: Rated at 170,000 psi
• Quantity: 5 per package
• Manufacturer Part Number: 770-1001

Each fastener is heat-treated prior to thread rolling and machining, which ensures consistent torque loading and maximum fatigue life. The proprietary stainless alloy is virtually impervious to rust and corrosion, providing a permanent hardware solution for demanding automotive environments.