SB121TRF Diaphragm | Huilian Durable Excavator Breaker Part

Huilian SB121TRF diaphragm delivers OEM-quality sealing for excavator breakers. Made from high-grade elastomer, it offers superior durability, heat resistance and a precise fit to reduce downtime and maintenance. Trusted by customers in 90+ countries.
Brand Name
Huilian
Part Name
Hydraulic Breaker Diaphragm
Part Number
C61139/C61-139/C61 139
Suitable for Breaker Brand
SOOSAN
Breaker Model
SB121 SB120 SQ120 SB121TR-F SB121TRF SB121TS-P SB121TSP
Related Parts
Seal Kit, Piston, Piston Ring, Accumulator, Sleeve Valve, Chisel, Back Head, Stop Pin, Through bolt
Material
HNBR
Tool
155
Hardness
70degree-85degree
Temperature
-35~135°C
Pressure
85-125Mpa
Position
Hydraulic Breaker Accumulator System
Certification
ISO9001
INQUIRY
Product Description

Product Overview

The SB121TRF diaphragm by Huilian is a high-performance sealing component designed for hydraulic breaker and excavator applications. Built to OEM standards, this diaphragm ensures reliable operation, long service life and easy replacement — keeping your equipment productive on the jobsite.

Key Features

Precision Fit & Compatibility

Specifically shaped for SB121TRF applications, the diaphragm provides a snug, leak-free fit. It works seamlessly with common breaker models, reducing oil leakage and maintaining stable hydraulic pressure.

Durable Material & Heat Resistance

Manufactured from High Quality elastomer compounds, the SB121TRF diaphragm resists wear, abrasion and high temperatures. This durability extends service intervals and cuts operating costs.

OEM Quality & Strict QC

Produced and inspected under Huilian’s rigorous quality control process, each diaphragm meets strict dimensional and performance standards for consistent, reliable results.

Benefits

  • Lower downtime thanks to extended seal life
  • Improved hydraulic efficiency and reduced leakage
  • Cost-effective replacement that matches OEM performance
  • Fast, straightforward installation for maintenance teams

About Huilian

Founded in 2005, Huilian Machine is a professional OEM supplier of excavator parts from Guangzhou, China. We manufacture hydraulic breaker hammers, chisels, seals and seal kits, diaphragms, pistons, wear bushes, retainer bars, bolts, valves and liners. Our experienced R&D, production and after-sales teams ensure top quality. Exported to over 90 countries, Huilian is committed to becoming a global leader and is seeking distributor partners worldwide. Visit https://www.huilianmachine.com/ for more information.

Ordering & Support

For reliable SB121TRF diaphragms, contact Huilian sales for competitive pricing, bulk discounts and fast shipping. Our technical support team can confirm fitment and help streamline replacement to get your breaker back in service quickly.

Ready to buy?

Reach out to Huilian today to secure genuine SB121TRF diaphragms and keep your excavator breakers running at peak performance.

Product Images

  • SB121 autox diaphragm
  • SB121 BKS diaphragm
  • SB121 BKS breaker diaphragm

Qualification Certificate

  • Hydraulic-Breaker-CE-Certificate

    Hydraulic-Breaker-CE-Certificate

  • Certificate-3

    ORI Certificate

  • new z

    Certificate of Honor

Frequently Asked Questions

What types of excavator parts do you offer?

We provide a wide range of high-quality excavator parts, including hydraulic breakers, chisels, seal kits, diaphragms, pistons, wear bushes, retainer bars, through bolts, side bolts, valves, and liners.

Are your parts compatible with all excavator brands?

Yes, our parts are designed to be compatible with major brands like Komatsu, Caterpillar, Hitachi, Hyundai, Doosan, JCB, Kobelco, Sany, and many more.

How can I ensure I’m selecting the right part for my equipment?

Our expert team can assist you in finding the right part based on your machine model, specifications, and requirements. Contact us for personalized support.

What is your shipping and delivery time?

We offer fast and reliable global shipping. Delivery times vary depending on location and order size, but we strive to process and ship orders as quickly as possible.

If you have any questions or concern, please contact us.

Request A Quote
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Guangzhou Huilian Machines Co., Ltd
1st Floor, No. 389, Zhongshan Avenue East, Huangpu District, Guangzhou, Guangdong, China.
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