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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3M Littmann Stethoscope Spare Parts Kit, Black, Stainless Steel, Compatible with Classic III, Cardiology IV, CORE Digital, 40016

3M Littmann Stethoscope Spare Parts Kit, Black, Stainless Steel, Compatible with Classic III, Cardiology IV, CORE Digital, 40016

Product ID: 18369080

Details

Brand
Littmann
Color
Black
Item Weight
0.03 kg
Recommended Uses For Product
listening to
Unit Count
1 Count

🎧Snap-tight soft-sealing eartips for supreme comfort

🩺Tunable diaphragms for dual adult & pediatric use

🛡️Non-chill bell sleeve for patient comfort

R865

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🩺 Upgrade your stethoscope, upgrade your care—because every sound counts.

UNIVERSAL COMPATIBILITY - Seamlessly fits Classic III, Cardiology IV, and CORE Digital models—upgrade without the hassle.
ERGONOMIC SNAP TIGHT EARTIPS - Soft-sealing design molds to your ears for all-day comfort and unbeatable acoustic clarity.
PRECISION TUNABLE DIAPHRAGMS - Switch frequencies effortlessly with patented 3M tech—hear every heartbeat, big or small.
RESTORE ELEVATE PERFORMANCE - Transform your pre-owned stethoscope into a near-new instrument with genuine 3M parts.
PATIENT CENTRIC NON CHILL BELL SLEEVE - Keeps patients comfortable during exams, enhancing your professional touch.

The 3M Littmann Stethoscope Spare Parts Kit (Black) includes tunable diaphragms for adult and pediatric use, snap-tight soft-sealing eartips, and a non-chill bell sleeve. Designed exclusively for Classic III, Cardiology IV, and CORE Digital models, this kit ensures premium acoustic performance, patient comfort, and easy installation—perfect for professionals aiming to extend the life and precision of their trusted stethoscope.

Specifications

ASIN	B004HFLWHY
Best Sellers Rank	#3,327 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Medical Stethoscope Parts
Brand	Littmann
Brand Name	Littmann
Color	Black
Customer Reviews	4.8 out of 5 stars 9,964 Reviews
Exterior Finish	Polished
Global Trade Identification Number	00707387773007, 00707387783969
Item Dimensions L x W	4"L x 3"W
Item Weight	0.03 kg
Manufacturer	3M
Material	Plastic, Silicone
Model Name	40016
Model Number	7100137383
Number of Items	1
Number of Packs	1
Part Number	7100137383
Product Dimensions	4"L x 3"W
Recommended Uses For Product	stethoscope_maintenance_replacement_parts
UPC	707387783969
Unit Count	1 Count
Warranty Description	3M Limited Warranty

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