Guangzhou Opal Machinery Parts Operation Department
                                                                                                           
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07000-72018 0700072018 Premium Quality Construction Machinery Parts D21AG-7 D21P-6A

Price Negotiable
Price: Negotiable
MOQ: 10
Delivery Time: Within 5-15 days after getting your desposit
Brand: OUB
Product Description

1. Quick Details of  seal 07000-72018:

Part NO. 07000-72018
Machine Crawler Dozer
Size 5.7 mm thickness
Material SILICON
Oil seal type O RING

 

2.  07000-72018 parts on group :

NO. PART NO. PRAT NAME QTY
1 104-15-41011 TRANSMISSION ASSEMBLY 1
2 104-15-41010 TRANSMISSION ASSEMBLY,(FOR MONO LEVER STEERING) 1
3 103-15-00511 VALVE ASSEMBLY 1
4 103-15-00531 SEAT ASSEMBLY 1
5 04260-00635 BALL 1
6 104-15-25110 BODY 1
7 104-15-25140 GASKET (K2) 1
8 01010-80860 BOLT 3
9 01602-20825 WASHER 3
10 01010-81025 BOLT 1
11 01602-21030 WASHER 1
12 01010-80820 BOLT 1
13 01602-20825 WASHER 1
14 103-15-25350 PLATE 2
15 01010-80820 BOLT 4
16 01602-20825 WASHER 4
17 104-15-25322 SPOOL 1
18 104-15-25220 VALVE 1
19 104-15-25280 SPRING 1
20 104-15-25290 SPRING, (L= 62.0) 1
21 104-15-25210 SPOOL 1
22 104-15-25480 VALVE 1
23 104-15-25490 VALVE 1
24 125-15-15290 SPRING 1
25 113-15-25260 SHIM, 0.5MM (K2) 3
26 113-15-25270 SHIM, 0.2MM (K2) 2
27 103-15-35270 SHIM, 0.5MM,SPRING (K2) 3
28 104-15-25260 SPACER 1
29 104-15-25340 STOPPER 2
30 07000-72020 O-RING (K2) 2
31 104-15-25330 STOPPER 2
32 07000-73025 O-RING (K2) 2
33 07000-72014 O-RING (K2) 3
34 07000-72018 O-RING (K2) 1
35 113-15-21770 SLEEVE 1
36 07000-72014 O-RING (K2) 4
37 01010-80870 BOLT 5
38 01602-20825 WASHER 5

 

3. 07000-72018  picture:


4. Service part number :

PART NO. PART NO. Part NO.
707-99-44290 707-51-45640 707-99-75600
707-99-44310 707-35-91060 707-99-59680
707-99-44340 707-98-54500 707-99-59690
707-51-85640 707-98-54510 707-99-59740
707-51-85650 707-98-56210 707-99-62010
707-51-90630 707-98-56600 707-99-62020
707-51-90640 707-98-56610 707-99-62120
707-51-90650 707-98-56640 707-99-64010
707-51-95630 707-98-57201 707-99-64030
707-51-95640 707-98-58200 707-99-64040
707-51-95650 707-98-58210 707-99-64050
421-63-H0P12 707-98-58230 707-51-65640
707-51-10630 707-98-58240 707-51-65650
707-99-64120 707-98-60100 707-51-70630
707-98-61100 707-98-60110 707-35-52700

 
5. FAQ

Q: What are the key properties of silicone rubber for these O-rings?
A: Silicone offers excellent heat resistance (operating range roughly -60°C to +200°C), great flexibility even at low temperatures, and strong resistance to ozone, weathering, and aging. It works well with hot air, steam, and non-polar fluids, though it is not recommended for use with most mineral oils or fuels.

Q: How do I install these O-rings correctly?
A: Start by thoroughly cleaning the O-ring groove and mating surfaces to remove all dirt, burrs, or old seal residue. Lightly lubricate the O-ring with a compatible fluid or grease to ease installation. Carefully fit the seal into the groove, making sure it does not twist, overstretch, or get pinched. When assembling components, use proper tools to avoid damaging the seal edges.

Q: What common mistakes cause these O-rings to fail early?
A: The most frequent causes are improper installation (twisting, pinching, or overstretching), chemical incompatibility with the system fluid, extreme temperatures leading to hardening or brittleness, scratches on mating surfaces, and using the wrong size or hardness (durometer) for the application.
 
Q: What are the key properties of silicone rubber for this seal?
A: Silicone offers excellent heat resistance (operating range roughly -60°C to +200°C), great flexibility even at low temperatures, and strong resistance to ozone, weathering, and aging. It works well with hot air, steam, and non-polar fluids, though it is not recommended for use with most mineral oils or fuels.

Q: How long can a properly installed silicone O-ring last?
A: In static applications with clean conditions and within rated temperatures, silicone O-rings can last for many years. In dynamic applications or with incompatible fluids, their lifespan will be significantly shorter.

Q: Can I reuse these O-rings after removing them?
A: No, reusing is never recommended. Once an O-ring has been compressed or stretched during installation, it can develop permanent deformation or hidden damage. Always install a new O-ring during reassembly to ensure a reliable, leak-proof seal.

6. 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

 

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Guangzhou Opal Machinery Parts Operation Department
Location NO.212,Zhu ji rode,tian he distric,guangzhou,China
Contact Person Vivian

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