All Products
  • Guangzhou Guoli Engineering Machinery Co., Ltd.
    David
    We’ve been working with GLPARTS for our excavator hydraulic needs, and their customer service has been fantastic. The quality of the cylinders is top-notch, and they match perfectly with our Volvo and Hyundai excavators. Fast shipping, excellent fit, and reliable performance!
  • Guangzhou Guoli Engineering Machinery Co., Ltd.
    John
    We’ve been using GLPARTS' hydraulic cylinders for our excavators for over a year now, and we couldn't be happier. The quality is excellent, the fitment is perfect, and delivery times are always faster than expected. Highly recommend their products for any heavy equipment needs!
  • Guangzhou Guoli Engineering Machinery Co., Ltd.
    Maria
    Thank you to GLPARTS for their fast and reliable service. The hydraulic cylinders we purchased fit our JCB excavators perfectly, and we’ve seen a noticeable improvement in efficiency. The cylinders are made of high-quality materials, and they’ve been holding up well under tough conditions.
Contact Person : Tina
Phone Number : 13081912597
WhatsAPP : +8613081912597

31M8-51120 R55-7 Excavator Hydraulic Arm Cylinder Assy for Hyundai Parts ISO9001 Approval

  • 31M8-51120 R55-7 Excavator Hydraulic Arm Cylinder Assy for Hyundai Parts ISO9001 Approval
  • 31M8-51120 R55-7 Excavator Hydraulic Arm Cylinder Assy for Hyundai Parts ISO9001 Approval
  • 31M8-51120 R55-7 Excavator Hydraulic Arm Cylinder Assy for Hyundai Parts ISO9001 Approval
Place of Origin Made In China
Brand Name Glparts
Certification ISO9001
Model Number R55-7
Minimum Order Quantity 1
Price Negotiation
Packaging Details Wooden Case
Delivery Time 7 Days
Payment Terms T/T,Western Union,MoneyGram
Supply Ability 2000pieces/month

Contact me for free samples and coupons.

WhatsAPP:0086 18588475571

wechat: 0086 18588475571

skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

x
Product Details
Category Excavator R55-7 Hydraulic Arm Cylinder Parts Type R55-7
Part Number 31M8-51120 31M851120 Installation Hydraulic System
Item Condition 100% New Excavator Type Crawler Excavator
Warranty 12 Months OEM Yes
Highlight

31M8-51120 Excavator Arm Cylinder

,

R55-7 Excavator Arm Cylinder

,

Hyundai arm hydraulic cylinder
Leave a Message
Product Description

31M8-51120 R55-7 Excavator Hydraulic Arm Cylinder Assy for Hyundai Parts ISO9001 Approval


Work Equipment

R55-7 Arm Hydraulic Cylinder Assembly

Type

R55-7

PN

31M8-51120

Warranty

12 Months

Main Material

High-Strength Forged Steel



Advantage


1. 16+ Years of Expertise
Over 16 years focused on hydraulic cylinders. We know excavator demands and real-world working conditions.

2. OEM-Level Performance
Built to match or exceed OEM specs. Fully compatible with Hitachi, Komatsu, Volvo, Hyundai, Doosan, Kobelco, and more.

3. Complete Model Coverage
Support for both new and older models. Cylinders available for boom, arm, and bucket with regular model updates.

4. Strict Quality Control
100% pressure-tested before delivery. Full in-house production ensures consistent quality from raw material to finish.


31M8-51120 R55-7 Excavator Hydraulic Arm Cylinder Assy for Hyundai Parts ISO9001 Approval 0


Spare parts of ths 31M8-51120 R55-7 hydraulic cylinder


未标题-1.jpg

             

Pos.

Part No.

Part Name

*.

31M8-51120

ARM CYLINDER

1

31Y1-22891

TUBE ASSY

2

31Y1-22350

ROD ASSY

3

31Y1-16401

GLAND

4

S732-055030

DD2 BUSH

K5.

Y200-055011

SEAL-ROD

K6.

Y180-055020

RING-BACKUP

K7.

Y240-055011

RING-BUFFER

K8.

Y110-055011

WIPER-DUST

9

Y190-069000

RING-SNAP

10

S632-090001

O-RING

11

S632-085004

O-RING

12

S642-085002

RING-BACKUP

13

S642-085003

RING-BACK UP

14

31YC-25020

RING-CUSHION

15

31Y1-24340

PISTON

K16.

S632-040004

O-RING

K17.

S642-040003

RING-BACK UP

K18.

Y450-090000

SEAL-PISTON

K19.

Y300-090100

RING-WEAR

K20.

Y440-090000

RING-DUST

21

31YC-65290

NUT-NYLON

22

31YC-2A040

VALVE-CHECK

23

31YC-99070

SPRING-COIL

K24.

S631-014004

O-RING

25

P220-110103

PLUG-HEX

26

31Y1-22911

PIPE ASSY-R

K27.

Y171-015004

O-RING

28

S107-080404

BOLT-SOCKET

29

S071-022230

U-BOLT

30

S201-101002

NUT-HEX

31

S411-100002

WASHER-SPRING

32

31YC-12020

BUSHING-PIN

K33.

Y010-050060

SEAL-DUST

34

S651-810002

NIPPLE-GREASE


Payment term: T/T, Western Union, Money Gram, Paypal
Delivery date: 3-7 days for parts in stock, 7-20 days for parts not in stock


31M8-51120 R55-7 Excavator Hydraulic Arm Cylinder Assy for Hyundai Parts ISO9001 Approval 2

Tags:

hydraulic arm cylinder

Excavator Arm Cylinder

arm cylinder assembly