R140LC-7 R140-7 Hydraulic Bucket Cylinder for Hyundai Excavator Spare Parts 61N4-40101 31Y1-18180 Aftermarket High Quality
Price:
Negotiation
MOQ:
1 PCS
Delivery Time:
3-7 Day
Brand:
Belparts
Product Description
More Branded Accessories are Available
| Hydraulic Parts | Hydraulic Pump | Final Drive | Travel Reduction |
| Swing Motor | Swing Reduction | Control Valve | Gear Parts |
| Slew Bearing | Engine Assembly | Hydraulic Cylinder | ECU |
Hyundai R140-7 / R140LC-7 Hydraulic Bucket Cylinder | PN:61N4-40101 & 31Y1-18180 | Premium Aftermarket Replacement
1. Basic Product Information
Premium aftermarket bucket hydraulic cylinder with dual OEM part numbers 61N4-40101 / 31Y1-18180, direct replacement for Hyundai R140-7 and R140LC-7 14-ton crawler excavator. It controls bucket curling & dumping for municipal trenching, soil moving, small quarry crushing and landscaping construction. Manufactured strictly per original Hyundai engineering drawing with identical mounting hole spacing, oil port layout and lug dimension for direct bolt-on installation without on-site modification.
| # | Part No. | Description | Qty |
|---|---|---|---|
| * | 31N6-20020 | RCV PEDAL | 1 |
| 1 | XKAY-00035 | BODY(1) | 1 |
| 2 | XKAY-00034 | BODY(2) | 1 |
| 3 | XKAY-00033 | PLUG | 4 |
| 4 | XKAY-00032 | PLUG | 2 |
| 5 | XKAY-00031 | SEAT-SPRING | 4 |
| 6 | XKAY-00030 | SPRING | 4 |
| 7 | XKAY-00029 | SEAT-SPRING | 4 |
| 8 | XKAY-00028 | SPOOL | 4 |
| 9 | XKAY-00027 | STOPPER | 4 |
| 10 | XKAY-00026 | SPRING | 4 |
| 11 | XKAY-00025 | GUIDE-ROD | 4 |
| 12 | XKAY-00024 | O-RING | 4 |
| 13 | XKAY-00069 | RING-SNAP | 4 |
| 14 | XKAY-00023 | ROD-PUSH | 4 |
| 15 | XKAY-00022 | PIN-SPRING | 4 |
| 16 | XKAY-00021 | SEAL | 4 |
| 17 | XKAY-00020 | BALL-STEEL | 4 |
| 18 | XKAY-00019 | SPRING | 4 |
| 19 | XKAY-00068 | PLATE | 4 |
| 20 | XKAY-00018 | RING-SNAP | 4 |
| 21 | XKAY-00017 | PLUG | 4 |
| 22 | XKAY-00016 | O-RING | 4 |
| 23 | XKAY-00067 | SEAL-ROD | 4 |
| 24 | XKAY-00014 | SEAL-DUST | 4 |
| 25 | XKAY-00013 | COVER | 4 |
| 26 | XKAY-00012 | BOLT-SOCKET | 4 |
| 27 | XKAY-00011 | CAM | 2 |
| 28 | XKAY-00010 | BUSHING | 4 |
| 29 | XKAY-00009 | SHAFT-CAM | 2 |
| 30 | XKAY-00008 | SCREW-SET | 2 |
| 31 | XKAY-00007 | SCREW-SET | 4 |
| 32 | XKAY-00006 | NUT-HEX | 4 |
| 33 | XKAY-00005 | BELLOWS | 2 |
| 34 | XKAY-00004 | SPACER | 1 |
| 35 | XKAY-00003 | O-RING | 4 |
| 36 | XKAY-00002 | O-RING | 2 |
| 37 | XKAY-00001 | BOLT-SOCKET | 4 |
2. Core Technical Parameters
| Technical Item | Data |
|---|---|
| Bore Diameter | 100mm |
| Piston Rod Diameter | 70mm |
| Rated Working Pressure | 32MPa |
| Factory Hydraulic Test Pressure | 48MPa (1.5 times rated working pressure) |
| Barrel Raw Material | ST52 seamless alloy steel with precision inner honing |
| Piston Rod | Medium carbon steel + 28~32μm hard chrome plating, surface hardness HRC67~70 anti-bending & anti-abrasion |
| Complete Seal Set | Import PU+NBR composite seals, oil-proof & anti-aging |
| Working Temperature Range | -25℃ ~ +85℃ |
| Design Service Life | ≥7800 working hours under regular heavy-duty use |
| Structure Type | Double ear lug with quenched wear-resistant copper bushings |
3. Product Core Advantages
- Dual OEM Number Matching: Two official part codes fully cover standard R140-7 & R140LC-7 serial machines, completely interchangeable with genuine Hyundai original spare parts.
- Compact Reinforced Design: Thickened lug base strengthens shock resistance, suitable for frequent bump against stone and gravel during earthmoving work, avoiding cylinder lug crack and rod deformation.
- Full Pre-shipment Testing: Every finished cylinder goes through full-pressure tightness test and reciprocating cycle test before storage to eliminate hidden internal/external oil leakage risk.
- Economical Replacement Choice: Matches original working performance while cutting around 45% purchasing cost for repair shops and spare parts wholesalers.
- Flexible Logistics Option: In-stock goods ship out within 3 working days; air delivery 3~7 working days, sea transport 30~38 days optional for bulk order.
4. Supplier Overview
We focus on Hyundai -7 series excavator hydraulic cylinder production for over 11 years, full boom/arm/bucket cylinder lineup for R110, R140, R210, R320-7 series, products widely exported to Africa, Southeast Asia, Middle East construction spare parts distributors.
5. Unique Differentiated FAQ
Q1: Does this bucket cylinder fit wheel type R140W-7 Hyundai excavator?
A: No, R140W-7 wheel excavator uses independent part number 31N4-60110 with different mounting pitch, cannot cross install.
Q2: Can I buy matched exclusive seal kit PN 31Y1-18181 separately together with cylinder?
A: Yes, supporting matching repair seal kit for separate purchase with preferential bundled price; seal set is not pre-installed in cylinder by default.
Q3: What anti-rust protection do you use for long-distance sea shipment?
A: Inner cylinder filled with anti-rust hydraulic oil, whole rod wrapped anti-rust grease + waterproof PE film + solid export plywood case packaging to avoid rust during humid ocean transit.
Q4: Will you offer combined discount if I purchase boom + arm + bucket cylinder at one order?
A: Mixed full-set order gets tiered unit discount and consolidated one-time freight to cut overall logistics cost.
Q5: How to proceed warranty claim when oil leakage happens within valid warranty period?
A: Submit clear leakage photos + excavator machine serial number, we provide free replacement seal kit or remote professional installation guidance as actual failure situation.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
GUANGZHOU BELPARTS ENGINEERING MACHINERY LIMITED
Location
429-432,No.268 Zhongshan Avenue East,Huangpu District,Guangzhou
Contact Person
Ron