Eibach 1200.300.0175S 12" Coil-Over Spring 3" ID 175 lb/in

Vehicle Fitment

• Universal - compatible with 2.5" diameter King, Sway-A-Way, or Fox coilover shocks

Fitment Notes

• UTV applications with Fox shocks using a 2-11/16" or 2-3/4" OEM spring inside diameter will require a reducer to step up to this spring's 3" ID
• For dual-rate coilover setups, the crossover ring position must be set so the spring divider contacts it before this spring reaches coil bind

Features

• Built using race-proven Eibach off-road spring technology (ERS/ERO series)
• Manufactured to tight dimensional and rate tolerances for consistent performance
• Silver powder coat finish for corrosion resistance and a clean appearance
• Maintains spring rate and dimensions reliably under sustained off-road impact loads
• Trusted across major off-road racing series including Baja 500/1000, King of the Hammers, and the Mint 400
• Compatible with major coilover shock brands using a 2.5" body diameter

Specifications

• Length: 12" (305mm)
• Inside diameter: 3" (76mm)
• Spring rate: 175 lb/in (3.13 kg/mm)
• Full compressed height: 3.74" (95mm)
• Travel: 8.26" (210mm)
• Load at full compression: 1,448 lbs.
• Weight: 3.66 lbs.
• Material: Steel, silver powder coat finish

Included Components

• 1x Coil-Over Spring

Product Description

The Eibach 1200.300.0175S is a 12" coil-over spring with a 3" inside diameter and a 175 lb/in spring rate, built using the same race-proven technology behind Eibach's off-road racing springs. It's designed to fit 2.5" diameter coilover shocks from major manufacturers like King, Sway-A-Way, and Fox, making it a popular choice for off-road builds running these platforms.

Manufactured to tight tolerances from high-strength spring steel, it holds its rate and dimensions consistently through repeated hard impacts, which is why it's a common choice across desert racing series like Baja 500/1000 and King of the Hammers. Whether used as a single-rate spring or as part of a dual-rate coilover setup, its silver powder coat finish and proven Eibach build quality make it a reliable upgrade for serious off-road suspension work.