Does this work for the cardiology IV?

Yes. All current Littmann stethoscopes (with the exception of electronic models) have similar components. The Cardiology IV has a 1.3 inch (3.3 cm) bell and a 1.7 inch (4.3 cm) chestpiece. The Classic III, which I purchased, has identical dimensions. Both share the same double-sided turnable diaphragms, such as this replacement kit contains.

Will this fit cardiology model 3 purchased around 2003?

Hello - thank you for your question. Unfortunately, this spare parts kit will not fit that model. Please connect with our team at 1-800-228-3957 (Monday – Friday 7:30 AM – 6 PM CST) and they will be able to assist with providing the correct model number. We look forward to speaking with you soon.

What is the diameter of each of the diaphragms?

Hi Julia! The Classic III Stethoscope has a double-sided tunable chestpiece. The approximate chestpiece diameters are: Adult side 1.7"/4.3cm Pediatric side 1.4"/3.4cm Let us know if you have additional questions!

buenas tardes sera compatible con classic ii y con classic ii se

Debe obtener el repuesto para classic II

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Description

🩺 Upgrade your stethoscope game—hear more, feel better, perform best.

ALL IN ONE REPAIR KIT - Everything you need to maintain peak performance in one sleek, gray package—stay ready, stay professional.
COMFORT FIRST EARTIPS - Snap-tight, soft-sealing design ensures a secure fit and superior acoustic isolation for long shifts.
NON CHILL BELL SLEEVE - Keeps patient comfort front and center by eliminating cold metal contact during exams.
SEAMLESS COMPATIBILITY - Engineered exclusively for Classic III™, Cardiology IV™, and CORE Digital stethoscopes—no guesswork, just perfect fit.
PRECISION TUNABLE DIAPHRAGMS - Switch effortlessly between adult and pediatric frequencies with patented tunable technology.

The 3M Littmann Stethoscope Spare Parts Kit (Gray) is a precision-engineered replacement set compatible with Classic III™, Cardiology IV™, and CORE Digital models. It includes tunable single-piece diaphragms for adult and pediatric use, snap-tight soft-sealing eartips for superior comfort and acoustic seal, and a non-chill bell sleeve to enhance patient comfort. Designed to maintain the high standards of Littmann stethoscopes, this kit ensures reliable, professional-grade performance and easy maintenance.

Reviews

S**Z

Perfect fit

Fit my Littmann cardiology IV perfectly. High quality and easy to to assemble just pop it on. Good price

7.09.2025

C**E

Just like the original!

I ordered this when I lost this part of my stethoscope. It went on perfectly and hasn’t fallen off since!

24.07.2025

B**9

Easy Peasy

Worked well. Easy to replace. "Just what the doctor ordered''!

31.07.2025

H**G

Perfect fit

My stethoscope is just like brand new now!

29.07.2025

T**I

Great replacement

Perfect fit! Great Littmann quality!

16.05.2025

N**A

Excellent replacement

Works great but price seems excessive. Didn’t keep me from buying a second repair kit though.

2.12.2024

L**S

Works well

Mine was cracked on my stethoscope, and this was easy to remove and replace!

14.03.2025

C**S

Excelente

Excelente identifica al que trae

12.09.2025

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