3M Littmann Tunable Diaphragm & Rim Assembly For Master Cardiology Stethoscope

Item #: LIT-DRA-36OP3
Our Price:$9.98
Compare at: $13.00
Quantity 1 2
Unit Price $9.98 $9.49

Renew your stethoscope with authentic 3M™ Littmann® replacement parts. Tunable diaphragm and rim for Littmann Master Cardiology stethoscopes. Patented tunable diaphragm conveniently alternates between the low and high frequencies without the need to turn over the chestpiece. Rim available in black or gray to match non-chill bell sleeve and/or eartips.

Littmann Products are not available for delivery outside of the United States and its territories.

  • Gray eartips
  • Small size
This product can be shipped anywhere in the 50 United States, Puerto Rico, The US Virgin Islands and APO and FPO addresses. Sorry, we cannot ship this product to any other address.
March 02, 2015

3M Littman Tunable Diaphragm

Replaced my stethescope that was no longer under warantee. This is absolutely the way to go to not have to replace the entire set. I was able to replace the tubing and diaphragm, and keep the head which was most important to me. Absolutely great quality and I LOVE it!

Evelyn Q.
Waterbury, Connecticut
December 22, 2013

Same as the original

Same great quality as the original that came with my scope. Pretty good deal

G W.
September 08, 2013


I'm very impressed with the littmann diaphragm. It fit my master cardiology stethoscope perfectly. I would purchase it again.

John B.
Madera, Pennsylvania
May 11, 2013

Littmann Tunable Diaphragm

I've had my Littmann for 14 years. It's very durable and I can't imagine doing my job without it. So when the tube cracked three years ago I purchased that assembly through Allheart and was very pleased at the price and speed of delivery. Well the diaphragm cracked on the side about a month ago. I taped it together, but last week it just fell apart. While at work I ordered the replacement diaphragm and it came right away, on my day off, so I didn't have to work without my prized Littmann Master Cardiology! The diaphragm was on sale, arrived at my home in time, and works like a charm. I'm am very pleased! Thank you Allheart!

P.A. R.
Brandon, Florida
February 10, 2013


As with all the Littman products I have purchased over the years, this diaphragm worked like a charm! My old one was mysteriously broken while I was on Vacation! The new one was an exact fit to my treasured 20+ yr old graduation gift!

Lynn K.
Willards, Maryland
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