Brand New 35H Hydraulic Pump Drive Rubber Coupling Assembly for Kato HD450, HD510
The 35H Flexible Rubber Coupling Assembly (Cross-Reference: 35H / Centaflex 35H) is a heavy-duty elastomeric drive coupling engineered specifically for Kato HD-Series mid-sized crawler excavators.
Primary Excavator Application Checklist
· Kobelco:SK100-3, SK100-5, SK120-3, SK120-5, SK130, SK140 series.
· Doosan / Daewoo:DH130-5, DH150-7, SOLAR 130, DX140 series.
· Hyundai:R130-5, R130-7, R140LC-7, R140LC-9 series.
· Kato:HD450, HD510, HD512 series.
· Sumitomo:SH100, SH120, SH145 series.
· SANY / XCMG / LIUGONG:Various 13-ton to 15-ton medium excavators utilizing Kawasaki or Rexroth hydraulic pump groups.
Thank you for choosing SPARKLING MACHINERY.
The 35H rubber coupling assembly is manufactured using oil-resistant natural and synthetic elastomer blends integrated with heavy-duty steel bolt bushings and hub sleeves. Engineered to operate under continuous high-torque cycles and engine bay heat, it acts as a mechanical shock absorber between the flywheel and hydraulic pump. Replacing a hardened, sheared, or cracked coupling eliminates flywheel-to-pump vibration, prevents splined shaft wear, and restores smooth hydraulic power output.
The SPARKLING MACHINERY NEW 35H Flexible Rubber Coupling Photo:


The SPARKLING 35H Hydraulic Pump Drive Rubber Coupling Assembly is designed for reliable power transmission between the excavator engine and hydraulic pump. It helps absorb vibration, reduce shock loads, and maintain smooth pump operation during digging, lifting, and traveling.
Manufactured for Kato HD450 and HD510 excavators, this replacement coupling is an ideal solution for worn, cracked, deformed, or damaged original components. Its flexible rubber construction supports stable torque transfer while helping protect connected drivetrain and hydraulic components from excessive vibration and impact.
Key Features and Benefits
- Brand new replacement part for dependable installation and service performance
- Compatible with Kato HD450 and HD510 excavators
- Helps reduce vibration and mechanical shock in the hydraulic pump drive system
- Supports smooth power transmission and stable hydraulic performance
- Suitable for routine maintenance, repair, and machine restoration
- Helps minimize unexpected downtime and improve equipment availability
- Produced under strict quality-control procedures by SPARKLING MACHINERY
Before ordering, please confirm the excavator model, coupling type, dimensions, mounting configuration, and existing part number to ensure correct fitment. Compatibility may vary according to machine production year and configuration.
Why Choose SPARKLING?
Founded in 2013, SPARKLING MACHINERY specializes in high-quality excavator parts, including hydraulic components, undercarriage parts, engine components, electrical systems, cabs, mini excavators, and accessories. We serve equipment compatible with leading brands such as Caterpillar, Komatsu, Hitachi, and Volvo.
With a focus on stability, precision, and continuous service, SPARKLING provides competitive pricing, technical support, customized solutions, and global customer assistance. Our goal is to help customers reduce maintenance costs while keeping excavators operating reliably.
FAQ
What are the primary symptoms that a 35H drive coupling needs replacement?
Common warning signs include excessive vibration or rattling noises coming from the engine flywheel housing, loss of hydraulic power, or visible cracking and rubber debris inside the bell housing.
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📦 Packing
1. Packaging methods: Carton box + Wooden case/Pallet + Anti-rust treatment
2. Export-standard packaging to ensure safety during transportation
3. Custom packaging available upon request
4. Dimensions and weight can be provided for freight calculation



🚚 Shipping
1. Available shipping methods: Sea freight, Air freight, Express delivery (DHL, UPS, FedEx, etc.)
2. LCL (Less than Container Load) and FCL (Full Container Load) options are supported
3. For Russian clients, we can introduce the forwarder agent to you
4. Delivery time: Ships within 1-3 working days after payment (for items in stock)
💳 Payment
1. Accepted methods: T/T, Bank Transfer, PayPal, Alipay, WeChat Pay, Western Union
2. Deposit + balance payment available for large or custom orders
3. Flexible payment options—feel free to contact us for details
📌 Frequently Asked Questions (FAQs)
Q: Which excavator models is this part compatible with?
A: This product is compatible with major brands such as CAT, KOMATSU, HITACHI, and more. Custom specifications are also available.
Q: How can I make sure I’m selecting the correct part?
A: You can send us a photo of the old part, part number, or your excavator model, and we will help you confirm the right match.
Q: Is there a warranty for this product?
A: Yes, we offer a 6-month quality guarantee under normal use.
Get a free quote
We are committed to producing the highest quality products at the most competitive prices. Therefore, we sincerely invite all interested companies to contact us for more information.


Sparkling Machinery Co.,Ltd
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Whatsapp: +8613609010879