Eibach 2000.375.0300S ERO 20" x 3.75" 300 lb/in Off-Road Coilover Spring Silver

Vehicle Fitment

• Universal - fits any coilover shock or suspension system with a 3.750 in. (95mm) inside diameter spring perch
• Purpose-built for extreme long-travel off-road coilover applications including desert racing, prerunner truck suspension, trophy truck builds, and heavy-duty UTV/off-road racing setups requiring maximum stroke at a moderate spring rate
• Compatible with bypass shocks, remote-reservoir coilovers, and extended long-travel race suspension accepting a 3.75 in. ID spring at 20 in. free length

Fitment Notes

• Confirm your coilover's spring perch inside diameter matches 3.750 in. (95mm) before ordering - this is the primary fitment dimension
• Verify that a 20.000 in. free length and 300 lb/in. rate suit your coilover's designed travel range, desired ride height, and vehicle corner weight
• Sold individually - order two for a complete front or rear axle replacement
• The 300 lb/in. rate at 20 in. free length is a softer, long-travel setup best suited to lighter vehicles or builds prioritizing maximum compliance over firm control; consult your shock manufacturer or suspension builder for rate selection guidance

Features

• ERO (Eibach Race Off-Road) series - engineered specifically for the elevated shock loads, high-frequency inputs, and extreme travel demands of off-road racing and heavy-duty recreation
• Manufactured from Eibach's proprietary Hi-Ten spring steel alloy for exceptional fatigue resistance under repeated high-impact loading
• CNC precision winding process ensures the highest linearity and rate consistency across the full 12.64 in. of available travel
• Each spring is individually tested and certified to its stated 300 lb/in. rate before leaving the factory
• Delivers an exceptional 12.64 in. of usable travel - among the highest available in a single coilover spring - with one of the smallest block heights in its class
• Silver powdercoat finish engineered for off-road environments - corrosion-resistant and highly visible for inspection in the field
• Ultra-lightweight Hi-Ten steel construction minimizes unsprung mass for fast wheel response over rough terrain
• Backed by Eibach's Five-Year Limited Warranty against factory defects in material and workmanship

Specifications

• Part Number: 2000.375.0300S
• Series: ERO (Eibach Race Off-Road)
• Free Length: 20.000 in. (508mm)
• Inside Diameter: 3.750 in. (95mm)
• Spring Rate: 300 lbs/in. (5.36 kg/mm / 53 N/mm)
• Block Height: 7.360 in. (187mm)
• Spring Travel: 12.640 in. (321mm)
• Load at Block Height: 3,792 lbs
• Color: Silver Powdercoat
• Weight: 13.62 lbs
• Quantity: Sold Individually (each)

Included Components

• 1x Eibach ERO Off-Road Coilover Spring (20.000 in. x 3.750 in. ID x 300 lbs/in.) - Silver

Product Description

The Eibach 2000.375.0300S is a 20-inch, 300 lb/in. coilover spring from Eibach's ERO (Eibach Race Off-Road) series - one of the longest configurations in the 3.75" ID ERO lineup, delivering an exceptional 12.64 inches of usable spring travel. At 3.750 inches inside diameter and 20.000 inches in free length with a moderate 300 lb/in. rate, this spring is engineered for builds where maximum stroke is the priority: trophy trucks, long-travel prerunners, desert race vehicles with ultra-long bypass shock systems, and any application where the suspension must absorb severe terrain inputs over extended travel distances without approaching block height.

Like all Eibach ERO springs, the 2000.375.0300S is wound from proprietary Hi-Ten spring steel on CNC machinery, then individually tested and certified to its stated rate. The silver powdercoat is the hallmark of the ERO off-road line - durable in mud, water, and abrasive environments and easily identified during post-run inspection. Order two for a complete axle set, and consult your shock manufacturer or suspension tuner to confirm that 300 lb/in. at 20 inches is appropriate for your vehicle weight, corner loads, and intended use. For the same rate in shorter lengths, see the 1800.375.0300S (18 in.) and 1600.375.0300S (16 in.).