Eibach 1400.300.0350S ERO 14" x 3" ID 350 lb/in Off-Road Coilover Spring Silver

Vehicle Fitment

• Universal - fits any coilover shock or suspension system with a 3.000 in. (76.2mm) inside diameter spring perch
• Purpose-built for off-road coilover applications including long-travel truck/SUV suspension, prerunner builds, desert racing, rock crawling, and overlanding setups
• Compatible with bypass shocks, remote-reservoir coilovers, and long-travel race suspension accepting a 3.00 in. ID spring

Fitment Notes

• Confirm your coilover's spring perch inside diameter matches 3.000 in. (76.2mm) before ordering - this is the primary fitment dimension
• Verify that a 14.000 in. free length suits your coilover's designed travel range and desired ride height
• Sold individually - order two for a complete front or rear axle replacement
• The 350 lb/in. rate is suitable for medium-to-heavy off-road applications; consult your shock manufacturer or suspension builder for application-specific rate recommendations

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 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 8.53 in. of available travel
• Each spring is individually tested and certified to its stated rate before leaving the factory
• Maximum travel in combination with one of the smallest block heights available for a 3.00 in. ID, 14 in. spring
• Silver powdercoat finish engineered for off-road environments - corrosion-resistant and highly visible for inspection in the field
• Ultra-lightweight steel construction minimizes unsprung mass relative to the rate for faster wheel response on rough terrain
• Trusted by professional off-road race teams competing in desert racing, rally raid, and extreme off-road events worldwide

Specifications

• Part Number: 1400.300.0350S
• Series: ERO (Eibach Race Off-Road)
• Free Length: 14.000 in. (356mm)
• Inside Diameter: 3.000 in. (76.2mm)
• Spring Rate: 350 lbs/in. (6.25 kg/mm)
• Block Height: 5.470 in. (139mm)
• Spring Travel: 8.530 in. (217mm)
• Load at Block Height: 2,990 lbs
• Color: Silver Powdercoat
• Weight: 7.12 lbs
• Quantity: Sold Individually (each)

Included Components

• 1x Eibach ERO Off-Road Coilover Spring (14.000 in. x 3.000 in. ID x 350 lbs/in.) - Silver

Product Description

The Eibach 1400.300.0350S is a 14-inch, 350 lb/in. coilover spring from Eibach's ERO (Eibach Race Off-Road) series - silver-finished and purpose-built for the high-load, high-travel demands of off-road suspension. At 3.000 inches inside diameter and 14.000 inches in free length, this spring is sized for the extended travel coilover setups common in prerunner trucks, desert race vehicles, and long-travel off-road builds. Compared to the 12-inch sibling (1200.300.0350S), the additional 2 inches of free length provides 8.53 inches of travel before reaching block height - nearly a full inch more - making it well suited to applications requiring maximum shock stroke at the same 350 lb/in. spring rate.

Like all Eibach ERO springs, the 1400.300.0350S 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, selected for durability in mud, water, and abrasive environments, as well as high visibility during post-run inspection. Order two for a complete axle set, and consult your shock manufacturer or suspension tuner to confirm whether 350 lb/in. at 14 inches is appropriate for your vehicle weight and intended use.