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Genuine ZF 0634.313.639 Heavy Equipment Hydraulic O-Ring
The ZF 0634.313.639 (0634313639) O-Ring is an OEM elastomeric static sealing element engineered specifically for heavy construction equipment transmissions, hydraulic control blocks, axles, and powershift drive systems manufactured by ZF Friedrichshafen AG.
Equipment & Manufacturer Applications
· Doosan / Develon: Directly indexed under OEM part number 0634 313 639 for heavy-duty vehicle drivetrain systems.
· Hyundai Construction Equipment (HCE): Cross-referenced for hydraulic and wheel-drive transmission groups on mid-to-large sized wheeled excavators, including the Robex (R140W, R170W, R180W, and R200W) series.
Thank you for choosing SPARKLING MACHINERY.
The ZF 0634.313.639 O-ring is molded to exact cross-sectional specifications using premium elastomer compounds (such as Nitrile/NBR or Fluororubber/FKM). Engineered to perform under continuous hydraulic pressures and elevated engine bay temperatures, it provides an airtight and liquid-tight seal between mating surfaces within ZF heavy machinery assemblies.
The SPARKLING MACHINERY NEW 0634.313.639 O-ring Photo:
The Genuine ZF 0634.313.639 Hydraulic O-Ring, supplied by SPARKLING MACHINERY, is a precision sealing component designed for ZF hydraulic and transmission-related systems used in heavy equipment. It helps maintain fluid-tight connections, prevent hydraulic oil leakage, and support reliable machine performance under demanding operating conditions.
Key Features and Benefits
- Genuine ZF part number: 0634.313.639
- Precision sealing performance: Helps maintain proper hydraulic pressure and reduce the risk of oil leakage.
- Reliable replacement: Suitable for maintenance, repair, and overhaul applications involving compatible ZF assemblies.
- Built for heavy equipment: Designed for use in demanding construction, industrial, and excavator environments.
- Supports reduced downtime: Replacing worn or damaged seals promptly can help protect system components and improve equipment availability.
- Professional sourcing: Supplied by an experienced excavator parts specialist with strict quality-control procedures.
Because O-rings are application-specific, customers should confirm the part number, equipment model, dimensions, and assembly requirements before ordering. SPARKLING MACHINERY can assist with compatibility checks and provide technical consultation.
Why Choose SPARKLING MACHINERY?
Founded in 2013, SPARKLING MACHINERY focuses on high-quality excavator and heavy equipment parts, including hydraulic components, undercarriage parts, engine components, electrical systems, cabs, mini excavators, and accessories. Our products support leading brands such as Caterpillar, Komatsu, Hitachi, Volvo, and ZF.
With a commitment to stability, precision, and perseverance, we provide dependable products, competitive pricing, customized solutions, and continuous after-sales support. Our global service network helps customers reduce maintenance costs while keeping equipment operating reliably.
FAQ
What are the primary signs that a ZF 0634.313.639 O-ring needs replacement?
Common indicators include slow fluid weeping around housing mating faces, a drop in hydraulic system operating pressure, or visible hardening and flattening of the O-ring during maintenance teardowns.
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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.
Contact us
Email: ranroswang@hksparkling.com
Wechat: +86 136 0901 0879
Skype: foreverlucia1
WhatsApp: +86 136 0901 0879
Address: No. 514-515, Hulin Road, Tianhe District, Guangzhou, China.
Sparkling Machinery Co.,Ltd
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Whatsapp: +8613609010879