EIBACH R40004 Coil Spring 803050542458

( Brand: Eibach ), ( Manufacturer Part Number: R40004 ), ( Type: Truck ), ( Features: Li Made To Oe Guidelines ), ( Item Width: 4.750 ), ( Item Length: 14.750 ), ( UPC: 803050542458 )

Review EIBACH Coil Spring

EIBACH R40004 Coil Spring - Ultimate Performance and Handling Enhancement

The EIBACH R40004 Coil Spring is a high-performance aftermarket suspension component that caters to automotive enthusiasts seeking to enhance their vehicle's handling, ride quality, and overall driving experience. This coil spring is part of Eibach's renowned Sportline series, which has earned a reputation for delivering reliable and consistent results.

Constructed from high-quality, cold-wound spring steel, the EIBACH R40004 Coil Spring offers improved stiffness over the stock spring, thereby reducing body roll and sway during cornering. This results in increased stability and better road holding capability, allowing drivers to tackle winding roads with confidence and precision.

The EIBACH R40004 Coil Spring features a progressive rate design that provides optimal balance between ride comfort and handling performance. This means that the spring applies more force as the vehicle compresses further, providing a smoother ride during everyday driving while maintaining excellent handling capabilities when pushed to the limit.

Installation of the EIBACH R40004 Coil Spring is a straightforward process, making it an ideal upgrade for the DIY enthusiast. The spring is engineered to fit perfectly with the OEM mounts, ensuring a hassle-free installation experience. Additionally, the spring is designed to work seamlessly with the vehicle's existing shock absorbers, allowing for a plug-and-play upgrade.

The EIBACH R40004 Coil Spring is available in various load ratings to cater to different vehicle applications. Each spring is rigorously tested both in-house and on the race track to ensure optimal performance and durability. The spring is also finish-coated with a durable powder-coating that protects it from the elements and provides a visually appealing look.

In conclusion, the EIBACH R40004 Coil Spring is an excellent upgrade for those seeking to enhance their vehicle's handling, ride quality, and overall driving experience. Its high-quality construction, progressive rate design, and easy installation make it a must-have for automotive enthusiasts looking to take their vehicle to the next level.

Eibach R40004 coil springs are aftermarket performance springs designed to provide improved handling and reduced body roll in vehicles. Here are some pros and cons of buying these springs:

1. Enhanced handling: Eibach R40004 coil springs lower the vehicle's center of gravity, leading to improved handling and a more responsive feel.

2. Reduced body roll: The lowering of the vehicle also results in reduced body roll during cornering, making the driving experience more enjoyable and safer.

3. High-quality construction: Eibach is known for its high-quality springs, and the R40004 series is no exception. These springs are designed to last and provide consistent performance over time.

4. Improved appearance: The lowered ride height of the vehicle can give it a more aggressive and sporty appearance.

1. Cost: Aftermarket performance springs like the Eibach R40004 can be more expensive than OEM springs.

2. Installation: Installing aftermarket springs can be a complex process and may require professional assistance.

3. Ride quality: Lowering the vehicle with performance springs can result in a stiffer ride, which some people may find uncomfortable.

4. Potential for noise: Performance springs can sometimes produce more noise than OEM springs, especially when driving over rough roads.

The Eibach R40004 coil springs offer several benefits for drivers looking to improve their vehicle's handling and appearance. However, they come with some drawbacks, such as increased cost, complexity of installation, and potential for a stiffer ride and noise. Ultimately, whether or not these springs are right for you depends on your personal preferences and driving style.

If you are an enthusiast who values improved handling and a more sporty appearance, the Eibach R40004 coil springs may be a worthwhile investment. However, if you prioritize comfort and ease of installation, you may want to consider OEM springs or a less aggressive aftermarket option. It's always a good idea to consult with a professional mechanic to determine which springs are best for your specific vehicle and driving needs.

Details:

Finish: Powder Coated. Made to OE guidelines IATF 16949.. End 1 Type: OEM.

Eibach R40004 - Coil Spring. Each spring is set to block ensure that after installation the vehicle remains at correct ride height for thousands of miles. Material: Steel. End 2 Type: OEM.

Eibach quality promise starts with the careful selection of appropriate spring steels, which are formed on state art CNC winding machines extreme precision. Zinc phosphate as pre-treatment and to prevent infiltration of corrosion. By combining heat treatment, shot preening and a durable corrosion protection, including powder coating guarantees durability extreme stability. Color: Black.

Development and production in the USA Germany. Thorough static and dynamic durability testing.

part #: r40004 prices

• $115.00-$131.77

specifications coilspringi:

• brand: Eibach
• mpn: R40004
• type: Truck
• features: Li Made To Oe Guidelines
• item width: 4.750
• item length: 14.750
• upc: 803050542458

shipping coilspringi:

• cost: $0.00
• service: Standard
• transit: 3-6 Days
• type: Fixed
• class: Standard

payments coilspringi:

• wallet: Paypal
• other
• credit card: Visa

offer coilspringi:

• sold: 0
• started: January 8, 2026
• quantity: 8
• availability: In Stock
• options: Ship-to-home

returns coilspringi:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

general coilspringi:

• condition: New
• Car Truck Parts Accessories > Steering Suspension > Leaf Coil Springs

seller coilspringi:

• # reviews: 45423
• city: Saint Paul, Minnesota
• rating: 98.0%

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