---
product_id: 551668835
title: "Clutch Master Cylinder, 21521152658 Clutch Master Cylinder Assembly for 318I 318IS 325 325E 325ES 325I 325IS 325IX"
brand: "astibym"
price: "$47.66"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/551668835-clutch-master-cylinder-21521152658-clutch-master-cylinder-assembly-for-318i
store_origin: US
region: United States of America
---

# OE Number Easy Install High Reliability Clutch Master Cylinder, 21521152658 Clutch Master Cylinder Assembly for 318I 318IS 325 325E 325ES 325I 325IS 325IX

**Brand:** astibym
**Price:** $47.66
**Availability:** ✅ In Stock

## Summary

> 🚗 Shift into Excellence with Every Drive!

## Quick Answers

- **What is this?** Clutch Master Cylinder, 21521152658 Clutch Master Cylinder Assembly for 318I 318IS 325 325E 325ES 325I 325IS 325IX by astibym
- **How much does it cost?** $47.66 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/551668835-clutch-master-cylinder-21521152658-clutch-master-cylinder-assembly-for-318i)

## Best For

- astibym enthusiasts

## Why This Product

- Trusted astibym brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **OE Compatibility:** Directly replaces OE number 21521152658 for a perfect fit.
- • **Versatile Fitment:** Compatible with multiple models including 318I, 325E, and more.
- • **Hydraulic Efficiency:** Transforms pedal force into hydraulic output for smooth clutch disengagement.
- • **Precision Engineering:** Crafted with exquisite workmanship for stable performance and durability.
- • **Seamless Installation:** Designed for a hassle-free replacement, saving you time and effort.

## Overview

The Clutch Master Cylinder 21521152658 by Astibym is a precision-engineered replacement part designed for select BMW models. With easy installation, high reliability, and OE compatibility, it ensures optimal performance and longevity for your vehicle's clutch system.

## Description

Feature: OE Number: The referencing OE number of this clutch master cylinder is 21521152658, which is molded and designed depend on the original data. Fitment: The clutch generator cylinder is a replacement for 318I 1984‑1992, for 318IS 1991, for 325 1986‑1988, for 325E 1984‑1987, for 325ES 1986‑1987, for 325I 1987‑1991. Function: The force generated by the clutch pedal is converted into hydraulic output to the sub pump, and pushes the clutch to achieve disengagement. Fine Workmanship: Clutch master cylinder is professionally manufactured with exquisite workmanship, unique design, stable performance and high reliability. Easy to Install: The clutch master cylinder is manufactured in strict accordance with the original standard, perfectly replacing the old or damaged ones, and improving time efficiency.  Specification: Item Type: Clutch Master Cylinder OE Number: 21521152658 Material: Aluminum + rubber  Package List: 1 x Clutch Master Cylinder  Note: Please double check the part number of your item, matching information is for reference only. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!

## Features

- Easy to Install: The clutch master cylinder is manufactured in strict accordance with the original standard, perfectly replacing the old or damaged ones, and improving time efficiency.
- Fine Workmanship: Clutch master cylinder is professionally manufactured with exquisite workmanship, unique design, stable performance and high reliability.
- OE Number: The referencing OE number of this clutch master cylinder is 21521152658, which is molded and designed depend on the original data.
- Fitment: The clutch generator cylinder is a replacement for 318I 1984‑1992, for 318IS 1991, for 325 1986‑1988, for 325E 1984‑1987, for 325ES 1986‑1987, for 325I 1987‑1991.
- Function: The force generated by the clutch pedal is converted into hydraulic output to the sub pump, and pushes the clutch to achieve disengagement.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Astibym |
| Brand | Astibym |
| Package Dimensions | 30 x 8 x 6 cm; 296 g |
| Manufacturer reference | Astibymb1okz5mwxy5275 |
| Manufacturer Part Number | Astibymb1okz5mwxy5275 |
| Item Weight | 296 g |

## Images

![Clutch Master Cylinder, 21521152658 Clutch Master Cylinder Assembly for 318I 318IS 325 325E 325ES 325I 325IS 325IX - Image 1](https://m.media-amazon.com/images/I/511T9VbjLRL.jpg)
![Clutch Master Cylinder, 21521152658 Clutch Master Cylinder Assembly for 318I 318IS 325 325E 325ES 325I 325IS 325IX - Image 2](https://m.media-amazon.com/images/I/51Y6gOpnckL.jpg)
![Clutch Master Cylinder, 21521152658 Clutch Master Cylinder Assembly for 318I 318IS 325 325E 325ES 325I 325IS 325IX - Image 3](https://m.media-amazon.com/images/I/51vicPtkuAL.jpg)
![Clutch Master Cylinder, 21521152658 Clutch Master Cylinder Assembly for 318I 318IS 325 325E 325ES 325I 325IS 325IX - Image 4](https://m.media-amazon.com/images/I/51lQ9zhHuPL.jpg)
![Clutch Master Cylinder, 21521152658 Clutch Master Cylinder Assembly for 318I 318IS 325 325E 325ES 325I 325IS 325IX - Image 5](https://m.media-amazon.com/images/I/617oJQvLXuL.jpg)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-22*