logo

Guangzhou Opal Machinery Parts Operation Department vivianwenwen8@gmail.com 86-135-33728134

Guangzhou Opal Machinery Parts Operation Department Company Profile
Products
Home > Products > Dust Wiper Seals > 225-3289 2253289 URE Double Lip Dust Wiper Seal for CAT Excavator Hydraulic Cylinder 988G 988H

225-3289 2253289 URE Double Lip Dust Wiper Seal for CAT Excavator Hydraulic Cylinder 988G 988H

Product Details

Place of Origin: China

Brand Name: OUB

Certification: 225-3289

Model Number: 793D

Payment & Shipping Terms

Minimum Order Quantity: 10

Price: Negotiable

Packaging Details: PP Bag Inside.outer is carton with film wrapped.

Delivery Time: Within 5-15 days after getting your desposit

Payment Terms: L/C,D/A,D/P,T/T,Western Union

Supply Ability: 1000Pcs

Get Best Price
Product Details
Highlight:
Part No.::
225-3289
Part Name::
SEAL
Model:
740 730
Machine:
Mining Excavator
Material:
Carbon Steel
Color:
YELLOW
Install Parts:
TRANSMISSION CONTROL VALVE
Part No.::
225-3289
Part Name::
SEAL
Model:
740 730
Machine:
Mining Excavator
Material:
Carbon Steel
Color:
YELLOW
Install Parts:
TRANSMISSION CONTROL VALVE
Product Description

1. Quick Details of  seal 225-3289:

Part NO. 225-3289
Machine Mining excavator
Size OEM
Material Carbon Steel
Type SEAL

 

2. 225-3289 picture:

225-3289 2253289 URE Double Lip Dust Wiper Seal for CAT Excavator Hydraulic Cylinder 988G 988H 0
3. Service part number :

PART NO. PART NO. Part NO.
5M2667 7M8485 2J1411
7S3206 2S4078 5J8300
1K6981 6K6307 6J6919
5J8200 304606 5J8150
8C9124 4J5140 5J8175
4J3236 4J5267 5J8200
5J7013 4J0519 5J0964
4J9224 4J0520 5J8275
7S3206 2S4078 5J8300
1K6981 6K6307 6J6919
5J8200 304606 5J8150
8C9124 4J5140 5J8175
215-4639 6V5586 8T0568

 

4. FAQ

Q: What’s the main function of 225-3289 and where is it installed on the excavator?
A: This is a double-lip dust wiper seal designed for hydraulic cylinders (boom, arm, bucket) of CAT excavators. Its core job is to scrape off mud, dust, sand and debris from the piston rod as it retracts, preventing contaminants from entering the cylinder and damaging the inner seals, bearings and hydraulic oil. The outer lip wipes heavy dirt; the inner lip retains lubricant and stops oil leakage.

Q: Why choose URE material instead of standard NBR rubber for this seal?
A: URE (Polyurethane) has 3–5 times higher wear resistance than NBR, excellent resistance to abrasion from rock dust and gravel, and better resistance to high pressure (up to 350 bar) and temperature (-30°C to +120°C). It also resists oil swelling and aging better, maintaining stable hardness and elasticity even after millions of reciprocating cycles in harsh construction environments.

Q: What color is this seal, and are there different design options for special working conditions?
A: The standard color is black (URE), with a metallic silver carbon steel outer case. We also offer blue (high-temperature URE) for desert or summer high-heat areas, green (chemical-resistant URE) for waste or chemical plants, and reinforced steel case versions for heavy-duty mining applications. The double-lip design is standard; single-lip versions are available for light-duty use.

Q: What’s the difference between this double-lip seal and a single-lip wiper seal?
A: A single-lip seal only cleans the rod but cannot prevent minor oil weeping. This double-lip design has two functional lips: the outer lip aggressively wipes heavy contaminants, while the inner lip acts as a secondary barrier to retain lubrication and stop oil leakage (eliminating "weeping"). It also has a metal-encased (canned) structure for stronger installation stability, preventing dislodgment under vibration.

Q: What’s the service life and quality standard of this product?
A: It meets CAT OEM quality standards with 100% dimensional inspection and leakage testing. The service life is 8,000–12,000 hours under normal construction conditions, and 5,000–7,000 hours in severe mud/water mining environments. The warranty is 12 months or 2,000 working hours (whichever comes first).

5. Exhibition and Wearhous

14X-13-05110  14X1305110 SERVICE KIT,TORQUE CONVERTER FOR KOMATSU D65EX-12E,D65A-12 1

14X-13-05110  14X1305110 SERVICE KIT,TORQUE CONVERTER FOR KOMATSU D65EX-12E,D65A-12 2

 

14X-13-05110  14X1305110 SERVICE KIT,TORQUE CONVERTER FOR KOMATSU D65EX-12E,D65A-12 3

 

Oil seals,Hydraulic Seals, Cylinders Seal Kits, And More