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🎧 Stay sharp, stay ready—never miss a beat with Littmann’s perfect-fit parts!
The 3M Littmann Stethoscope Spare Parts Kit (Model 40022) is a precision-engineered replacement set designed exclusively for the Master Classic II stethoscope. Featuring a single-piece tunable diaphragm and Snap Tight Soft-Sealing Eartips in sleek black, this kit ensures optimal acoustic performance and comfort. Lightweight and reliable, it keeps your essential diagnostic tool in peak condition, backed by 3M’s trusted quality.

| ASIN | B014GVCGLE |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 35,623 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 88 in Stethoscopes |
| Colour | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (3,387) |
| Date First Available | 30 Aug. 2015 |
| Included components | Spare Parts |
| Item Package Quantity | 1 |
| Item Weight | 20 g |
| Item model number | 40022 |
| Manufacturer | 3M |
| Part number | 40022 |
| Product Dimensions | 0.04 x 0.09 x 0.17 cm; 20 g |
| Size | Single |
A**R
Perfect fit
So I am a nightmare for losing parts of my Steph at incidents. These are expensive but came in perfect condition and before I needed my steph again
N**Y
Not much to say
Good product, received as shown, easy to apply
K**.
Good quality
Good quality product fitted my stethoscope nicely.
F**Y
Perfect fit
As described
L**R
Unreliable diaphragm
This diaphragm is so unreliable. I have had my littman for 10 years and this diaphragm just doesn’t seem to get a seal, sometimes I can hear, sometimes I can’t. Would not purchase from this link again.
K**B
Good fit.
Bought to replace diaphragm for Littman Classic III as original part had become loose after some time. Good press fit, same great sound quality. Ear pieces easy to fit. Looks brand new again - and considering you'd pay 70+ for a Littman III this is not the most expensive given its going to last and last after using and using.
M**B
Perfect Fit
Simple and straightforward
B**.
Not cheap!
If you are unfortunate to have lost the original diaphragm which came with your Littmann stethoscope then you are left with little option but to buy this. Very expensive for a small circular disc! Advisory: never lend your stethoscope to a technician 😁
C**O
Perfettamente funzionante. Uguale all'originale
J**A
El repuesto es caro pero por rehabilitar tu estetoscopio vale la pena. Lo mejor es que ¡existe! y es bastante sencillo de recolocar. Se complica un poco la búsqueda por los diferentes modelos pero ayudan mucho las imágenes.
A**.
Hej Jag har fått en fel vara på min beställning. Jag tror att jag har fått varan nr 40001. Jag bifogar bilder. Jag skulle vilja få en rätt vara och kan returnera den som är fäll. Jag förväntar mig att inte betala porto för att det känns inte att jag har gjort något fel. Mvh Andrzej Szlesinski
P**C
Parfait !
A**.
Excellent produit Mais colis ouvert dans ma boîte aux lettres : livreur curieux ?
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