---
Title: Suspension Spring KYB RA3999
Description: Part number: RA3999

Simplified part number: RA3999

OEM numbers (Original Equipment Manufacturer):

BMW 31336767370 (31336767370)
BMW 31336767371 (31336767371)
Language: en-US
Last updated: 2026-01-07
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---

# Suspension Spring KYB RA3999

Breadcrumb: [Suspension Spring KYB RA3999](https://euparts.eu/en/suspension-spring-kyb-ra3999.md)



## Product Info

- **Brand**: KYB
- **Product Line**: K-Flex
- **MPN (Manufacturer Part Numbers)**: RA3999
- **EAN**: 4549762134388
- **Price**: 34.95 EUR

## Parameters:

- weight: 2.19 kg
- Fitting Position: Front Axle
- Spring Design: Coil Spring
- Length: 360 mm
- Outer Diameter: 152 mm
- Thickness 1: 12.5 mm

## Images:

1. [Image 1: Suspension Spring KYB RA3999](https://digital-assets.tecalliance.services/images/1600/29cd4d0d3b9d2391132586279503a3a2222d4b3f.jpg)
2. [Image 2: Suspension Spring KYB RA3999](https://digital-assets.tecalliance.services/images/1600/a2df4704e61458a7e1316575bee167f3841d8b02.jpg)