---
product_id: 51989430
title: "Holts PS4R 100g Piston Seal"
brand: "holts"
price: "FREE"
currency: GBP
in_stock: true
reviews_count: 6
url: https://www.desertcart.co.uk/products/51989430-holts-ps4r-100g-piston-seal
store_origin: GB
region: Great Britain
---

# 25 years proven reliability 100g precision formula treats engines up to 4.5L Holts PS4R 100g Piston Seal

**Brand:** holts
**Price:** FREE
**Availability:** ✅ In Stock

## Summary

> ⚙️ Seal the deal on engine performance — don’t let your ride fall behind!

## Quick Answers

- **What is this?** Holts PS4R 100g Piston Seal by holts
- **How much does it cost?** FREE with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/51989430-holts-ps4r-100g-piston-seal)

## Best For

- holts enthusiasts

## Why This Product

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

## Key Features

- • **Precision 100g Formula:** Compact tube designed for targeted piston seal restoration.
- • **Proven 25-Year Track Record:** Decades of trusted performance ensuring confidence in every application.
- • **UK Industry Leader Heritage:** Backed by Holts’ 65+ years of automotive aftermarket innovation and quality.
- • **Universal Engine Compatibility:** Effective for engines up to 4.5 litres, perfect for diverse vehicle needs.
- • **Self-Lubricating Seal Technology:** Creates a pliable, durable barrier to reduce oil consumption and restore compression.

## Overview

Holts PS4R 100g Piston Seal is a specialized automotive treatment designed to restore compression and reduce heavy oil consumption by forming a self-lubricating seal between pistons and cylinder walls. Suitable for engines up to 4.5 litres, this product leverages over 25 years of proven success and is manufactured by Holts, a UK-based industry leader with more than 65 years of expertise in automotive aftermarket solutions.

## Description

The purpose of Piston Seal is to compensate for excessive clearance between cylinder walls, pistons and rings. It does this by forming a pliable, self-lubricating seal. Piston Seal is not designed to remedy broken piston rings, worn bearings, oil leakages from gaskets etc., but within its scope is an interim treatment for heavy oil consumption and reduced compression. It has a history of success covering 25 years.Treats engines up to 4.5 litres, comes in a 100g tube.Founded in the United Kingdom more than 65 years ago, Holts has become an industry leader in the manufacture and global distribution of automotive aftermarket products.

Review: Very expensive - In 1972 when I had motorcycles I used it on an old BSA and I think I paid about £3.20. So this price is extortionate.
Review: Five Stars - excellent

## Features

- Holts Piston Seal 100G
- Great Product

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00518H8NI |
| Brand | Holts |
| Customer Reviews | 2.7 2.7 out of 5 stars (7) |
| Date First Available | 30 Mar. 2011 |
| Item Weight | 100 g |
| Item model number | PS4R |
| Manufacturer | Holt Lloyd International Ltd |
| Manufacturer part number | PS4R |
| Package Dimensions | 17.8 x 3.8 x 3.8 cm; 100 g |

## Product Details

- **Brand:** Holts
- **Item weight:** 100 Grams
- **Material:** Synthetic Rubber or Polymer
- **Style:** Compact
- **Water resistance level:** Water Resistant

## Images

![Holts PS4R 100g Piston Seal - Image 1](https://m.media-amazon.com/images/I/61T1YqMIlsL.jpg)

## Questions & Answers

**Q: I am interested in Holts Piston Seal but need it delivered as a matter of urgency. Is it possible to dispatch it within 24 hours? Thanks.**
A: Valerie, I haven't received your order through Amazon. Can you do it again. If I receive it soon I can still make it to the  post office

## Customer Reviews

### ⭐⭐ Very expensive
*by T***G on 5 August 2022*

In 1972 when I had motorcycles I used it on an old BSA and I think I paid about £3.20. So this price is extortionate.

### ⭐⭐⭐⭐⭐ Five Stars
*by D***E on 5 August 2014*

excellent

### ⭐⭐⭐ Waste of money
*by M***S on 26 July 2019*

Used the whole tube but didnt fix the problem. Considering its price I would've been wiser to put the money towards a new engine.

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*Product available on Desertcart Great Britain*
*Store origin: GB*
*Last updated: 2026-04-23*