---
product_id: 3247490
title: "Wiseco VSK4 Premium 8.90mm OD Valve Shim kit"
brand: "wiseco"
price: "AR$235971"
currency: ARS
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.ar/products/3247490-wiseco-vsk4-premium-8-90mm-od-valve-shim-kit
store_origin: AR
region: Argentina
---

# Precision ground to exact sizes Heat treated for durability Fits KTM 250F & 450F motors Wiseco VSK4 Premium 8.90mm OD Valve Shim kit

**Brand:** wiseco
**Price:** AR$235971
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your valve game with precision and power!

## Quick Answers

- **What is this?** Wiseco VSK4 Premium 8.90mm OD Valve Shim kit by wiseco
- **How much does it cost?** AR$235971 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/3247490-wiseco-vsk4-premium-8-90mm-od-valve-shim-kit)

## Best For

- wiseco enthusiasts

## Why This Product

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

## Key Features

- • **KTM-Ready:** Specifically designed to fit most KTM 250F and 450F engines seamlessly.
- • **Built to Last:** Heat-treated shims ensure unmatched durability and long service life.
- • **Comprehensive Kit:** 47 different thicknesses with 5 pieces each—total control over your valve clearance.
- • **Precision Perfected:** Each shim is ground to exact OEM specs for flawless valve adjustments.
- • **Seamless Integration:** Pairs perfectly with Wiseco’s full valve train component lineup for ultimate performance.

## Overview

The Wiseco VSK4 Premium Valve Shim Kit offers 235 precision-ground, heat-treated shims in 47 thicknesses, engineered to OEM standards for KTM 250F and 450F engines. Designed for durability and perfect fit, it’s the essential upgrade for professional-grade valve adjustments and seamless integration with Wiseco’s valve train components.

## Description

Wiseco VSK4 Premium 8.90mm OD Valve Shim kit

## Features

- 8.90 millimeter outer diameter valve shim kit contains 5 of each 47 different thicknesses
- 8.90 millimeter shim kits fit most KTM 250F and 450F motors
- These kits are expertly manufactured to OEM specifications with optimum materials
- To ensure long service life, each shim is heat treated and precision ground to exact sizes
- The perfect complement to Wiseco's complete line of valve train components

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Wiseco |
| Brand | Wiseco |
| Model | VSK4 |
| Item Weight | 8.1 ounces |
| Product Dimensions | 10.5 x 7 x 1.5 inches |
| Item model number | VSK4 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | VSK4 |

## Images

![Wiseco VSK4 Premium 8.90mm OD Valve Shim kit - Image 1](https://m.media-amazon.com/images/I/71ztsJ78wlL.jpg)

## Questions & Answers

**Q: So, which is it? Does this kit have 5 of 47 different sizes or 3 of 23?**
A: 3 each of 23 sizes. Thinnest is 1.72mm and then goes up by .04mm to 2.60mm.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works in my RS660
*by R***N on June 13, 2025*

I ran these shims in my 2022 Aprilia RS660 for an ASRA race weekend in the expert grid. Also the test day prior to races. They will fit just fine if you are sure you have the clearance between the top of the valve stem and the valve spring retainer.Some engines, I believe 2021 and earlier but not certain, require the OEM shims which have fillets cut out to take care of tolerance issues. Do your own research and confirm it yourself, don't guess.

### ⭐⭐⭐⭐⭐ Works perfect for bmw water cooled r1200!
*by R***N on July 11, 2024*

Good price on a nice set of shims. Wiseco is hard to beat for quality.

### ⭐⭐⭐⭐ Not enough of the shims you need (E46 M3)
*by D***W on December 1, 2023*

Good kit for what it is, but if you haven't adjusted the valves in a very long time or don't know history of the car, you need to buy 2. For an E46 M3 with 18 of the 24 valves needing adjustment I needed 4-6 of the sizes 2.20 - 2.28. Only 3 come in each kit. It works out to you spending money on tons of shims that you will likely never need or use, but it is what it is and 2x this kit is still vastly cheaper than OEM.

## Frequently Bought Together

- Wiseco VSK4 Premium 8.90mm OD Valve Shim kit
- REXBETI Digital Micrometer, Professional Inch/Metric Measuring Tools 0.00005"/0.001 mm Resolution Thickness Gauge, Protective Case with Extra Battery
- Stainless Steel Feeler Gauge Dual Marked Metric and Imperial Measuring Tool(0.005/0.127-0.02/0.508 mm, 16 Blades)

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**Shop now:** [https://www.desertcart.com.ar/products/3247490-wiseco-vsk4-premium-8-90mm-od-valve-shim-kit](https://www.desertcart.com.ar/products/3247490-wiseco-vsk4-premium-8-90mm-od-valve-shim-kit)

---

*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-05-20*