ARP 2184701 Stud Kit M10x1.25 Hex Stud Grade 8740 1.75″ Painted

Description

Product Overview

The ARP 2184701 Stud Kit is engineered for demanding automotive applications where strength, durability, and precise fit are non‑negotiable. Featuring a metric fine M10x1.25 thread, this stud is fabricated from Grade 8740 alloy steel, a material known for its superior tensile properties and resistance to fatigue. The painted exterior finish not only adds a layer of corrosion protection but also provides a visual cue for correct installation orientation. At 1.75 inches in length, the stud offers ample engagement depth while maintaining a compact profile suitable for tight engine bays. With a Rockwell hardness range of 30‑36 HRC and a maximum shear strength of 120,000 psi, the component meets or exceeds OEM specifications for main bolt reinforcement, ensuring that high‑performance engines retain structural integrity under extreme loads.

Beyond its mechanical attributes, the ARP 2184701 Stud Kit carries the reputation of ARP, a brand synonymous with precision engineering and rigorous quality control. Each stud undergoes a multi‑stage manufacturing process that includes heat treatment, surface coating, and dimensional inspection to guarantee consistency across every unit. The result is a fastener that delivers repeatable torque values, reduces the risk of thread stripping, and minimizes the need for re‑torquing during service intervals. Whether you are rebuilding a classic muscle car, upgrading a modern performance engine, or performing routine maintenance on a daily driver, this stud provides the confidence that comes from using a component designed to withstand the rigors of high‑output operation.

Usage

Designed for a wide range of automotive platforms, the ARP 2184701 Stud Kit excels in environments where engine performance and reliability intersect. It is an ideal replacement for factory‑installed main bolts in both gasoline and diesel powerplants, particularly in applications that demand higher torque settings or experience elevated thermal cycles. The stud’s metric fine thread profile ensures compatibility with a variety of aftermarket crankshaft and connecting rod assemblies, making it a versatile choice for custom builds, race‑ready engines, and high‑output street machines.

Installation is straightforward for technicians familiar with standard stud insertion procedures. The hex head provides ample leverage for proper seating, while the painted coating helps prevent galling during tightening. Because the stud conforms to the 3A thread class, it offers a tight fit that resists loosening under vibration, a critical factor for engines subjected to aggressive driving conditions or track use. Additionally, the stud’s length and thread engagement are optimized to distribute load evenly across the bearing surfaces, reducing stress concentrations that could otherwise lead to premature wear or failure.

Beyond the engine compartment, the ARP 2184701 Stud Kit can be employed in ancillary systems that require robust fastening solutions, such as transmission housings, oil pump mounts, and turbocharger brackets. Its high shear strength and corrosion‑resistant finish make it suitable for marine‑influenced environments and applications where exposure to coolant, oil, or salt is common. By selecting this stud, mechanics and enthusiasts alike can achieve a balance of performance, longevity, and ease of service that aligns with the demanding standards of modern automotive engineering.

Why Choose Us

When selecting a replacement stud for critical engine components, the decision hinges on material quality, manufacturing precision, and brand trust. ARP delivers on all three fronts. The Grade 8740 alloy used in the 2184701 model is heat‑treated to achieve a hardness that resists deformation under high torque, while the fine metric thread ensures a secure, vibration‑resistant connection. ARP’s commitment to rigorous testing means each stud is validated against industry benchmarks for tensile strength, shear capacity, and fatigue endurance, providing peace of mind that the component will perform as intended throughout the vehicle’s service life.

Our after‑sales support further distinguishes the ARP experience. Customers receive access to technical resources, installation guidelines, and a responsive service team ready to address any fitment or performance questions. In the unlikely event of a defect, ARP offers a straightforward warranty process that underscores the confidence we have in our products. This combination of superior engineering, comprehensive documentation, and dedicated support creates a value proposition that extends far beyond the initial purchase price.

Moreover, the ARP 2184701 Stud Kit is manufactured in the United States, adhering to strict quality standards that align with domestic automotive expectations. This local production not only ensures tighter control over material sourcing and process consistency but also reduces lead times for customers across North America. By choosing ARP, you are investing in a product that reflects a legacy of performance‑oriented design, backed by a brand that has earned the trust of professional racers, OEMs, and DIY enthusiasts alike.

Key Features

• Grade 8740 alloy steel delivers exceptional tensile strength and durability for high‑performance engines.
• Painted finish provides corrosion resistance and easy visual identification during installation.
• M10x1.25 metric fine thread ensures precise fit and secure torque retention.
• 1.75‑inch length offers optimal engagement while fitting within confined engine bays.
• Comes with ARP’s dedicated customer support and warranty for added peace of mind.

FAQ

What makes Grade 8740 steel suitable for engine main studs?

Grade 8740 is a high‑strength alloy that undergoes heat treatment to achieve a hardness of 30‑36 HRC, providing excellent resistance to stretching and fatigue under the extreme loads typical of high‑performance engines.

Can this stud be used as a direct replacement for OEM main bolts?

Yes, the ARP 2184701 Stud Kit matches the OEM specifications for thread size, length, and shear capacity, making it a drop‑in replacement that often exceeds the original component’s performance characteristics.

Is the painted finish purely cosmetic, or does it serve a functional purpose?

The painted coating serves both aesthetic and functional roles. It protects the steel from corrosion caused by exposure to oil, coolant, and environmental moisture, while also providing a visual cue for correct orientation during installation.

Do I need any special tools to install this stud?

Standard automotive hand tools, such as a hex socket or wrench that fits the hex head, are sufficient. Ensure you follow ARP’s torque specifications to achieve the proper clamping force and avoid over‑tightening.

What warranty does ARP offer on this product?

ARP provides a limited warranty that covers manufacturing defects. If you encounter any issues related to material or workmanship, contact ARP’s customer service for assistance and potential replacement.