---
product_id: 48079964
title: "3M Littmann Stethoscope Spare Parts Kit, Classic II Paediatric Diaphragm Assembly, 40012"
brand: "3m littmann"
price: "9302 som"
currency: KGS
in_stock: false
reviews_count: 13
url: https://www.desertcart.kg/products/48079964-3m-littmann-stethoscope-spare-parts-kit-classic-ii-paediatric-diaphragm
store_origin: KG
region: Kyrgyzstan
---

# 3.3cm paediatric diaphragm Easy snap-on replacement Dual-sided chestpiece design 3M Littmann Stethoscope Spare Parts Kit, Classic II Paediatric Diaphragm Assembly, 40012

**Brand:** 3m littmann
**Price:** 9302 som
**Availability:** ❌ Out of Stock

## Summary

> 🎧 Hear every heartbeat, never miss a moment.

## Quick Answers

- **What is this?** 3M Littmann Stethoscope Spare Parts Kit, Classic II Paediatric Diaphragm Assembly, 40012 by 3m littmann
- **How much does it cost?** 9302 som with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/48079964-3m-littmann-stethoscope-spare-parts-kit-classic-ii-paediatric-diaphragm)

## Best For

- 3m littmann enthusiasts

## Why This Product

- Trusted 3m littmann brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Longevity:** Compatible with Classic II models, extending the life of your trusted stethoscope
- • **Effortless Upgrade:** Snap-on diaphragm assembly revives your Classic II paediatric stethoscope in seconds
- • **Dual-Color Rim Options:** Includes black and grey rims for seamless, personalized diaphragm fitting
- • **Value-Driven Replacement:** Cost-effective spare parts kit that keeps your essential diagnostic tool performing like new
- • **Precision Paediatric Acoustics:** Small 3.3cm diaphragm tailored for crystal-clear child patient auscultation

## Overview

The 3M Littmann Classic II Paediatric Diaphragm Assembly Spare Parts Kit (model 40012) features a 3.3cm dual-sided chestpiece diaphragm designed exclusively for paediatric stethoscopes. It includes black and grey rims for easy, secure snap-on replacement, extending the life and acoustic precision of your Classic II paediatric stethoscope. Lightweight and durable, this kit is a cost-effective solution trusted by healthcare professionals worldwide.

## Description

3M Littmann Stethoscope Spare Parts Kit, Classic II Paediatric Diaphragm Assembly, 40012 : desertcart.co.uk: Business, Industry & Science

Review: Perfect fit - Perfect fit for my 25 year old Littmans paediatric stethoscope. Easy to fit, just snaps/clicks on easy and is secure once on. Comes in 2 colours for the diaphragm clip/holder - gray and black. Revived my old stethoscope. Good value for money. Sounds perfect
Review: Replacement parts - Just what was needed for my much used paeds tubes

## Features

- This Parts Kit ONLY FITS THE CLASSIC II paediatric STETHOSCOPE.
- Replacement of the floating diaphragm on Classic II paediatric stethoscopes
- Dual-sided chestpiece with small 3.3cm diaphragm is ideal for paediatric patients.
- Contains one floating diaghragm for the stethoscope chestpiece
- Contains a Black rim for assembly of the diaphragm to the chestpiece
- Contains a Grey rim for assembly of the diaphragm to the chestpiece

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B014GVC3SA |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 60,480 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 175 in Stethoscopes |
| Colour | Black, Grey |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,431) |
| Date First Available | 30 Aug. 2015 |
| Included components | Spare Parts |
| Item Package Quantity | 1 |
| Item Weight | 23.6 g |
| Item model number | 40012 |
| Manufacturer | 3M |
| Part number | 40012 |
| Product Dimensions | 0.04 x 0.09 x 0.02 cm; 23.59 g |

## Images

![3M Littmann Stethoscope Spare Parts Kit, Classic II Paediatric Diaphragm Assembly, 40012 - Image 1](https://m.media-amazon.com/images/I/31Ctm3blX2L.jpg)
![3M Littmann Stethoscope Spare Parts Kit, Classic II Paediatric Diaphragm Assembly, 40012 - Image 2](https://m.media-amazon.com/images/I/31nrsoYUudL.jpg)
![3M Littmann Stethoscope Spare Parts Kit, Classic II Paediatric Diaphragm Assembly, 40012 - Image 3](https://m.media-amazon.com/images/I/419kHMa-YXL.jpg)
![3M Littmann Stethoscope Spare Parts Kit, Classic II Paediatric Diaphragm Assembly, 40012 - Image 4](https://m.media-amazon.com/images/I/41Z8MJ5+S6L.jpg)
![3M Littmann Stethoscope Spare Parts Kit, Classic II Paediatric Diaphragm Assembly, 40012 - Image 5](https://m.media-amazon.com/images/I/518cbBYYGCL.jpg)

## Questions & Answers

**Q: Does this diaphragm fit the pediatric/small side of the cardiology iii stethoscope also?**
A: Yes i think so...

**Q: Would this fit onto the bell side of a 3m littmann classic II se? basically i would like to convert the bell into a pediatric sized diaphragm**
A: It might work for you. 
I had to return my purchase because the 3m is mislabeled. The replacement that came was for the "Infant" size bell and NOT the Pediatric diaphragm as stated.

**Q: what is the diameter of the ring?**
A: 1 3/8 inches or 3.7 cm

**Q: Will this product fit 3m littmann select stethoscope, purple tube, 28 inch, 2294?**
A: This kit is for the Classic II Pediatric stethoscope, it is not made to fit your model. Thank you!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect fit
*by L***G on 26 April 2025*

Perfect fit for my 25 year old Littmans paediatric stethoscope. Easy to fit, just snaps/clicks on easy and is secure once on. Comes in 2 colours for the diaphragm clip/holder - gray and black. Revived my old stethoscope. Good value for money. Sounds perfect

### ⭐⭐⭐⭐⭐ Replacement parts
*by A***S on 27 June 2021*

Just what was needed for my much used paeds tubes

### ⭐⭐⭐⭐⭐ Perfect fit
*by R***G on 29 June 2021*

Great value for money

## Frequently Bought Together

- 3M Littmann Kit de piezas de repuesto para Estetoscopio Classic II Pediátrico con juego de diafragma (Modelo 40012)
- 3M Littmann Cardiology IV Diagnostic Stethoscope, 6165, More Than 2X as Loud, Weighs Less, Stainless Steel Rainbow-Finish Chestpiece, 27' Black Tube, Stem, and Headset
- 3M™ Littmann® Stethoscope Identification Tag, Black, 40007

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**Shop now:** [https://www.desertcart.kg/products/48079964-3m-littmann-stethoscope-spare-parts-kit-classic-ii-paediatric-diaphragm](https://www.desertcart.kg/products/48079964-3m-littmann-stethoscope-spare-parts-kit-classic-ii-paediatric-diaphragm)

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-03-09*