ranroswang@hksparkling.com 
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31NB-12140 Block for Hyundai Crawler Excavators R450LC7 R450LC7A R480C9MH R480LC9
The 31NB-12140 Hydraulic Manifold Block is a precision-engineered flow control core for Hyundai R450LC7, R450LC7A, R480C9MH, R480LC9 crawler excavators. It integrates multiple control valves to distribute, regulate, and redirect high-pressure hydraulic oil (max 35MPa) between pumps, cylinders, and motors, ensuring smooth boom, arm, and swing movements.
Key Features
· OEM-Matched Precision: CNC-machined carbon steel (42CrMo) body with 6 bolt-on ports (3/4" NPT), exact mounting dimensions (320×240×180mm) for Hyundai crawler excavators—no modification needed.
· High Pressure Resistance: Quenched-tempered surface (HRC 38–42) withstands 35MPa working pressure and 52.5MPa burst pressure, preventing deformation in extreme conditions.
· Leak-Proof Design: Precision lapped valve seats and nitrile rubber O-rings (temperature range -20°C to 100°C) eliminate internal/external leakage.
· Plug-and-Play Installation: Direct bolt-on fit with pre-drilled mounting holes; reduces replacement time to 2 hours
Compatible Models: This block is used in several 7-Series and 9-Series Hyundai crawler excavators, including:
· R450LC7, R450LC7A, R500LC7, R500LC7A, RD510LC-7 (7-series)
· R480C9MH, R480LC9, R480LC9A, R480LC9S, R520LC9, R520LC9A, R520LC9S (9-series)
· Interchangeable Part Numbers: 31NB-12140, 31NB12140, 31NB-12140X.
Thank you for choosing SPARKLING MACHINERY for your hydraulic manifold needs. The 31NB-12140 Hydraulic Manifold Block is critical for Hyundai large crawler excavators, ensuring precise hydraulic flow control and system stability. Our blocks meet ISO 9001 and Hyundai OEM standards, backed by a 12-month warranty and technical support for installation and troubleshooting.
The SPARKLING MACHINERY NEW 31NB-12140 Block Photo:
Why Choose the SPARKLING 31NB-12140 Manifold Block?
- OEM-Grade Performance: Matches Hyundai’s original flow rate (120L/min) and pressure curve, restoring 95%+ system responsiveness.
- Long-Lasting Durability: 42CrMo steel with Dacromet coating outlasts generic cast-iron blocks by 50% in service life.
- Reduced Downtime: Direct bolt-on installation cuts replacement time; pre-greased threads for quick assembly.
- Cost-Effective: 50% lower price than OEM with same quality; reduces maintenance frequency and repair costs.
- Certified Quality: Each unit undergoes 100% pressure testing; CE/RoHS compliant for global market compatibility.
| PART NUMBER | PART NAME | WEIGHT KG | |
| 1 | K9005089 ZGAQ-02241 | FORK;JOINT | 5 |
| 2 | K9005090 | JOINT FORK | 9.1 |
| 3 | K9005085 | SHAFT;UNIVERSAL | 20.1 |
| 4 | 230106-00079 | UNIVERSAL SHAFT | 5.8 |
| 5 | 230106-00078 | UNIVERSAL SHAFT | 9.2 |
| 6 | 130712-00408 | UNIVERSAL SHAFT | 20.5 |
| 7 | K9007272 | PLANET CARRIER | 28.3 |
| 8 | K9004167 | RING GEAR | 13.6 |
| 9 | K9004165 | PISTON | 5.1 |
| 10 | K9004166 | CARRIER;DISC | / |
About SPARKLING MACHINERY:
- Founded in 2013, SPARKLING focuses on high-quality excavator parts across hydraulics, undercarriage, engines and electrical systems. We prioritize stability, precision and continuous service, offering worldwide distribution, tailored solutions and strict QC to help customers reduce cost and increase uptime.
Get In Touch:
- Replace your failing ECU confidently. Contact SPARKLING for pricing, lead time, and technical support — restore optimal machine control quickly and reliably.
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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