---
product_id: 10703663
title: "Sonnax Line Pressure Modulator Valve & Sleeve .427 E4OD AX4N 4R100"
brand: "sonnax"
price: "€ 80.94"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.hr/products/10703663-sonnax-line-pressure-modulator-valve-and-sleeve-427-e4od-ax4n
store_origin: HR
region: Croatia
---

# EPC oil loss prevention Carbon steel sleeve Hardened alloy valve Sonnax Line Pressure Modulator Valve & Sleeve .427 E4OD AX4N 4R100

**Brand:** sonnax
**Price:** € 80.94
**Availability:** ✅ In Stock

## Summary

> 🚗 Shift into Excellence with Sonnax!

## Quick Answers

- **What is this?** Sonnax Line Pressure Modulator Valve & Sleeve .427 E4OD AX4N 4R100 by sonnax
- **How much does it cost?** € 80.94 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/10703663-sonnax-line-pressure-modulator-valve-and-sleeve-427-e4od-ax4n)

## Best For

- sonnax enthusiasts

## Why This Product

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

## Key Features

- • **Leak-Proof Design:** O-ring technology prevents EPC oil loss.
- • **Enhanced Performance:** Experience improved shift firmness for a smoother ride.
- • **Unmatched Durability:** Crafted from carbon steel to resist wear and tear.
- • **Precision Engineering:** Annular grooves center the valve, eliminating sideloading.
- • **Superior Wear Resistance:** Hardened alloy steel valve ensures longevity.

## Overview

The Sonnax Line Pressure Modulator Valve & Sleeve is engineered for optimal performance in E4OD, AX4N, and 4R100 transmissions. With a carbon steel sleeve and hardened alloy valve, it offers exceptional durability and wear resistance, while innovative design features prevent oil loss and enhance shift firmness.

## Description

Some E4OD, 4R100 transmissions have soft 1-2 or 2-3 shifts, intermittent harsh shifts or poor line rise complaints. These can be caused by ECU (electronic control unit) or accumulator pressure problems. Severe wear of the line pressure modulator sleeve allows EPC (electronic pressure control) oil to leak past the valve and cause soft shifts. Severe wear can also cause the valve to stick or hang up, causing harsh shifts. Sonnax offers four size variations of the line pressure modulator sleeve and valve kit that eliminate this oil loss problem.

## Features

- Sleeve is manufactured from carbon steel to prevent excessive wear
- Valve is made from hardened alloy steel for better wear resistance
- O-ring helps prevent EPC oil loss
- Annular grooves center valve in sleeve and eliminate sideloading
- Improves shift firmness

## Images

![Sonnax Line Pressure Modulator Valve & Sleeve .427 E4OD AX4N 4R100 - Image 1](https://m.media-amazon.com/images/I/31VFyUKd01L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    ***Read First***
  

*by A***. on Reviewed in the United States on February 7, 2015*

If you have a 4-R100 transmission in your Powerstroke that shifts hard from 1-2, and 2-3 gear changes, this is the kit to buy! Stiffer springs. Great kit! Don't let the dealership or tranny guys tell you it's a "torque converter" because either they will charge you $1600.00 to simply put this kit in, or they will charge you $1600.00 for a converter and you'll have the same problem as before! I have a built transmission and this was still the week point on the 4-R100. Easy fix!

### ⭐⭐⭐⭐⭐ 







  
  
    Five Stars
  

*by Z***K on Reviewed in the United States on November 6, 2016*

Transmission shifts much more responsively than it ever had with this kit and the tricumulator from sonnax

### ⭐ 







  
  
    Now i got an flashing OD button and truck don't go nowhere.
  

*by J***. on Reviewed in the United States on January 14, 2018*

This kit only came with 1 oring and the 2 little cylinders on bottom of the picture the rest you have to reuse!

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**Shop now:** [https://www.desertcart.hr/products/10703663-sonnax-line-pressure-modulator-valve-and-sleeve-427-e4od-ax4n](https://www.desertcart.hr/products/10703663-sonnax-line-pressure-modulator-valve-and-sleeve-427-e4od-ax4n)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-05*