ARP Thermostat Hsg Bolt Kit

Multiple Pontiac Fitments 190-7401 (2010–2025)

Part #: 190-7401

Overview

The ARP Thermostat Housing Bolt Kit is a high-quality fastener solution designed specifically for securing your vehicle's water neck and thermostat housing. Engineered for performance enthusiasts and professional mechanics alike, these bolts ensure a reliable and secure connection in your engine's cooling system. Whether you're performing a rebuild, repair, or upgrade, this kit provides the durability and precision fitment needed to maintain optimal engine operation.

Constructed with ARP's renowned quality standards, these fasteners help support the integrity of your cooling components, preventing leaks and ensuring consistent performance under demanding conditions. Ideal for use in various Pontiac models, this kit is perfect for those seeking a dependable, long-lasting fastening solution that withstands high temperatures and engine vibrations.

Key Features

Designed with performance and durability in mind, the ARP Thermostat Housing Bolt Kit offers several key features:

• Manufactured from high-strength chromoly steel, providing excellent tensile strength and resistance to stretching or breaking under stress.
• Finished in a durable black oxide coating that offers corrosion resistance and a sleek appearance, ensuring longevity and aesthetic appeal.
• Includes washers for a complete installation, ensuring proper load distribution and sealing integrity.
• Available with either hex head or 12-point head styles, allowing for versatile installation options and ease of access in tight engine bays.
• Underhead length of 1.000 inch, designed to fit a variety of Pontiac thermostat housings and water necks.
• Precision-machined threads and high-quality manufacturing standards to ensure a perfect fit and secure fastening.

Construction & Design

The ARP thermostat housing bolt kit is crafted from premium chromoly steel, a material known for its exceptional strength-to-weight ratio and durability. The black oxide finish not only enhances corrosion resistance but also provides a professional, finished look. The bolts feature a 12-point head design, which allows for increased torque application and better grip in tight spaces, reducing the risk of stripping or rounding off the fastener head.

Each bolt is engineered with a precise underhead length of 1.000 inch, ensuring compatibility across multiple Pontiac models and water neck configurations. The inclusion of washers ensures a proper seal and even load distribution, preventing leaks and maintaining the integrity of your cooling system. These design choices make the ARP kit a reliable upgrade over factory fasteners, especially in high-performance or high-temperature environments.

Performance & Reliability

While this kit is primarily designed for secure fastening, its high-quality materials and construction contribute to overall engine reliability. Properly secured thermostat housings help prevent coolant leaks, which can lead to overheating and engine damage. Using ARP fasteners ensures that your cooling system remains sealed and functional, even under the stresses of spirited driving or demanding conditions.

Installation & Fitment

The ARP Thermostat Housing Bolt Kit is a bolt-on upgrade that requires no special tools beyond standard hand tools. The bolts are designed to thread directly into the factory mounting points, providing a straightforward installation process. No cutting, drilling, or additional modifications are necessary. For optimal results, torque the bolts to the manufacturer’s specifications, ensuring a secure and leak-free fit.

• Easy, bolt-on installation with standard hand tools
• No cutting, drilling, or tuning required
• Designed to fit multiple Pontiac models with compatible thermostat housings

What's Included

• High-strength chromoly steel bolts with black oxide finish
• Washers for each bolt

Ideal For

• Performance enthusiasts rebuilding or upgrading Pontiac engines
• Professional mechanics seeking reliable, high-quality fasteners
• Anyone looking to improve the durability and security of their cooling system

Emissions Note

This product is designed for use in standard engine applications and does not affect emissions compliance. Always verify fitment and compatibility with your specific vehicle model before installation.