Description
Product Overview
The ZUDKSUY Metering Diaphragm set includes ten inner diaphragms crafted from robust zinc alloy. Each diaphragm is engineered to fit the inner cavity of small engine carburetors, providing a reliable seal and accurate fuel metering. With a compact package measuring 2.8 x 1.93 x 0.28 inches and a lightweight design of just 0.317 ounces per piece, the set is easy to store and handle. The diaphragms are compatible with popular STIHL lawn mower models such as FS38, FS75, FS85, BG55, SP81, and the C1Q series, as well as a broad range of other carburetor part numbers listed in the specifications.
![[Product front view showing all components]](https://www.keenfinds.store/wp-content/uploads/2026/06/b14a7ac92ed9442f909dfb83c0b03a0d.jpg)
Usage
These diaphragms are ideal for homeowners, landscapers, and small‑engine technicians who need a quick, reliable replacement for worn or damaged carburetor components. Install them during routine maintenance or when you notice symptoms like rough idling, poor acceleration, or fuel leakage. The set works perfectly in garden equipment, handheld blowers, and small generators, ensuring consistent engine performance across a variety of outdoor tasks.
Why Choose Us
ZUDKSUY combines precision engineering with premium materials to deliver diaphragms that resist cracking and deformation. Each piece undergoes strict quality control, guaranteeing a perfect fit and long service life. Our commitment to customer satisfaction includes responsive support and a hassle‑free return policy, giving you confidence in every purchase.
Key Features
- High‑grade zinc construction for superior durability and resistance to wear.
- Ten-piece kit ensures you have spares for multiple engines or future replacements.
- Precise inner fit delivers accurate fuel metering, improving engine efficiency.
- Broad compatibility with STIHL and many other small‑engine carburetor models.
- Responsive customer service and easy return process for peace of mind.
FAQ
What engines are compatible with these diaphragms?
The diaphragms fit a wide range of STIHL lawn mowers (FS38, FS75, FS85, BG55, SP81, C1Q series) and other small engines listed under part numbers rb‑99/100, C1Q‑S69A, C1Q‑S70, etc.
How do I install the diaphragms?
Remove the carburetor, take out the old inner diaphragm, clean the cavity, and press the new zinc diaphragm into place ensuring a snug fit before reassembling.
Can I use these diaphragms on non‑STIHL equipment?
Yes, as long as the carburetor specifications match the listed part numbers, the diaphragms will function correctly.
What is the warranty on this product?
ZUDKSUY offers a 12‑month warranty covering manufacturing defects, with full support from our service team.
Do I need any special tools for replacement?
Standard carburetor repair tools are sufficient; no additional equipment is required.




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