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Home > Products > Excavator Seal Kits > 721-98-00710 7219800710 SEAL KIT, HYDRAULIC BUCKET CYLINDER PC228US-11 HB215LC-3

721-98-00710 7219800710 SEAL KIT, HYDRAULIC BUCKET CYLINDER PC228US-11 HB215LC-3

Name: 721-98-00710 7219800710 SEAL KIT, HYDRAULIC BUCKET CYLINDER PC228US-11 HB215LC-3
Brand: Guangzhou Opal Machinery Parts Operation Department
SKU: 721-98-00710
Price: 34.10 USD
Availability: InStock

Product Details

Place of Origin: China

Brand Name: OUB

Certification: ISO9001

Model Number: 721-98-00710

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

Product Description

Product Details

Highlight: 
                                                                                                                                                                                                                                                                                hydraulic cylinder seal kit, excavator seal kit PC228US-11, HB215LC-3 seal kit with warranty
                              

Part No.::	721-98-00710	Part Name::	SERVICE KIT
Model:	PC210-11	Machine:	Crawler Excavator
Material:	PU,RUBBER,PTFE,SPCC	Color:	BLACK,BROWN,WHITE
Install Parts:	BUCKET CYLINDER

Part No.::	721-98-00710
Part Name::	SERVICE KIT
Model:	PC210-11
Machine:	Crawler Excavator
Material:	PU,RUBBER,PTFE,SPCC
Color:	BLACK,BROWN,WHITE
Install Parts:	BUCKET CYLINDER

Product Description

1. Quick Details of seal 721-98-00710:

Part NO.	721-98-00710
Machine	PC200-8MO,PC210-11
Size	OEM
Material	PU,RUBBER,PTFE,SPCC
Type	SEAL KITS

2. 721-98-00710 parts on group :

NO.	PART NO.	PRAT NAME	QTY
1	134-32-61221	Nut	50
2	20Y-32-31210	Bolt	50
3	07000-B3030	O-ring	1
4	07000-B3035	O-ring	2
5	07000-B5080	O-ring	1
6	07000-B5120	O-ring	1
7	07145-00070	Seal, Dust	2
8	07145-00080	Seal, Dust	2
9	707-35-30800	Ring, Back-up	2
10	707-35-31210	Ring, Back-up	1
11	707-39-13150	Ring, Wear	2
12	707-44-13150	Ring, Piston	1
13	707-51-90650	Ring, Buffer	1
14	707-51-90860	Packing, Rod	1
15	707-56-90740	Seal, Dust	1
16	07000-B3030	O-ring	1
17	07000-B5085	O-ring	1
18	07000-B5125	O-ring	2
19	07002-62034	O-ring	1
20	07145-00080	Seal, Dust	4
21	707-35-30850	Ring, Back-up	2
22	707-35-31260	Ring, Back-up	3
23	707-39-13530	Ring, Wear	2
24	707-44-13250	Ring, Piston	1
25	707-51-95650	Ring, Buffer	1
26	707-51-95860	Packing, Rod	1
27	707-56-95740	Seal, Dust	1
28	07000-B3030	O-ring	1
29	07000-B5070	O-ring	1
30	07000-B5105	O-ring	1
31	07145-00070	Seal, Dust	2
32	20Y-70-23220	Seal, Dust	2
33	707-35-30700	Ring, Back-up	2
34	707-35-31060	Ring, Back-up	1
35	707-39-11530	Ring, Wear	2
36	707-44-11250	Ring, Piston	1
37	707-51-80650	Ring, Buffer	1
38	707-51-80860	Packing, Rod	1
39	707-56-80740	Seal, Dust	1
40	07000-13030	O-ring	1
41	07000-B5070	O-ring	1
42	07000-B5105	O-ring	1
43	07145-00070	Seal, Dust	2
44	20Y-70-23220	Seal, Dust	2
45	707-35-30700	Ring, Back-up	2
46	707-35-31060	Ring, Back-up	1
47	707-39-11530	Ring, Wear	2
48	707-44-11250	Ring, Piston	1
49	707-51-80650	Ring, Buffer	1
50	707-51-80860	Packing, Rod	1
51	707-56-80740	Seal, Dust	1
52	134-32-61221	Nut	50
53	20Y-32-31211	Bolt	50
54	07000-13030	O-ring	1
55	07000-B5085	O-ring	1
56	07000-B5125	O-ring	2
57	07002-12034	O-ring	1
58	07145-00080	Seal, Dust	4
59	707-35-30850	Ring, Back-up	2
60	707-35-31260	Ring, Back-up	3
61	707-39-13530	Ring, Wear	2
62	707-44-13250	Ring, Piston	1
63	707-51-95650	Ring, Buffer	1
64	707-51-95860	Packing, Rod	1
65	707-56-95740	Seal, Dust	1

3. 721-98-00710 picture:

721-98-00710 7219800710 SEAL KIT, HYDRAULIC BUCKET CYLINDER PC228US-11 HB215LC-3 0
4. Service part number :

PART NO.	PART NO.	Part NO.
707-35-52670	707-51-45640	707-99-75600
707-35-52690	707-98-25870	707-51-80640
707-35-52700	707-44-85180	707-98-36600
707-35-52740	707-44-10150	707-98-25870
707-35-52750	707-44-85150	707-98-25910
707-35-52760	707-44-90070	707-98-25920
707-35-52770	707-44-90080	707-98-25970
707-35-52780	707-44-90180	707-98-25980
707-35-52830	707-44-90150	707-98-26070
707-35-52860	707-44-95180	707-98-26100
707-51-65640	707-44-95150	707-98-26110
707-51-65650	707-44-10080	707-98-26120
707-51-70630	707-44-10180	707-98-37580
707-51-70650	707-98-60120	707-51-20250
707-99-77240	707-98-60121	707-35-52700

5. FAQ

Q: What do you think the saying that the rod seal is the most important of boom cylinder seal kit?

A: You are absolutely on the right track. If we are talking about what keeps the machine running safely and prevents a major mess on the job site, the rod seal is definitely the most critical component in a Komatsu boom cylinder seal kit.While the rod seal prevents external leaks, it doesn't work alone. A standard cylinder seal kit relies on a few other critical components to keep the rod seal from failing prematurely:

Wiper Seal (Dust Seal):Scrapes dirt, mud, and water off the rod before it retracts into the cylinder.
Buffer Seal:Absorbs sudden pressure spikes from heavy digging loads.
Piston Seal:Separates the two internal chambers of the cylinder.

You are 100% right that the rod seal is the most critical for preventing external failure and catastrophic oil loss. However, when rebuilt, it is highly recommended to replace the wiper and buffer seals at the exact same time, as they act as the bodyguard for that all-important rod seal.

Q: How long can a properly installed seal kit last?

A: With clean hydraulic fluid, correct installation, and regular maintenance, the kit can last 5,000–10,000 operating hours. Lifespan is significantly reduced by contaminated fluid, excessive side loads, or high operating temperatures.

Q: Can I reuse old seals from the kit?

A: No, reusing old seals is never recommended. Even if they appear undamaged, they lose elasticity and develop hidden wear over time. Always install all new seals from the kit during a rebuild to ensure reliability.

Q: Can I reuse any of the old seals from the kit?

A: No, reusing old seals is never recommended. Even if they appear undamaged, they lose elasticity and develop hidden wear during operation. Always install all new seals from the kit during a rebuild.

6. Exhibition and Wearhous

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721-98-00710 7219800710 SEAL KIT, HYDRAULIC BUCKET CYLINDER PC228US-11 HB215LC-3

hydraulic cylinder seal kit

excavator seal kit PC228US-11

HB215LC-3 seal kit with warranty

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Floating Oil Seal

Valve Pusher

Gasket Kit

Engine Turbochargers

Friction Disc