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423-33-11440 4233311440 SEAL RING OR FRONT WHEEL BRAKE, WA350-1 538

Name: 423-33-11440 4233311440 SEAL RING OR FRONT WHEEL BRAKE, WA350-1 538
Brand: Guangzhou Opal Machinery Parts Operation Department
SKU: WA380-1
Price: 0.10 USD
Availability: InStock

Product Details

Place of Origin: China

Brand Name: OUB

Certification: ISO9001

Model Number: WA380-1

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: 
                                                                                                                                                                                                                                                WA350-1 hydraulic seal kit, O ring seals for bucket cylinder, 538 compatible hydraulic seals
                              

Part No.::	423-33-11440	Part Name::	D-RING
Model:	WA380-1LC	Machine:	Loaders
Material:	Steel,rubber	Color:	BLACK

Part No.::	423-33-11440
Part Name::	D-RING
Model:	WA380-1LC
Machine:	Loaders
Material:	Steel,rubber
Color:	BLACK

Product Description

1. Quick Details of seal 423-33-1140 :

Part NO.	423-33-11440
Machine	WA350-1
Size	OEM
Material	fiberglass,NBR,SILICON,
Oil seal type	D-RING

2. 423-33-11440 parts on group :

423-33-11440 4233311440 SEAL RING OR FRONT WHEEL BRAKE, WA350-1 538 0

NO.	PART NO.	PART NAME	QTY
1	423-22-10041	FRONT AXLE ASSEMBLY	1
2	423-22-10040	FRONT AXLE ASSEMBLY	1
3	423-30-11031	BRAKE ASSEMBLY	2
4	423-33-11030	BRAKE ASSEMBLY	2
5	423-33-11112	CYLINDER	1
6	581-32-12140	PLUG	1
7	566-32-11430	BLEEDER	1
8	566-32-11620	CAP	1
9	07043-50211	PLUG	1
10	07040-11409	PLUG	2
11	07002-31423	O-RING	2
12	07000-05300	O-RING	1
13	423-33-11450	SLEEVE	1
14	423-33-11131	SLEEVE	1
15	423-33-11440	SEAL	1
16	423-33-11421	SEAL	1
17	01010-31235	BOLT	9
18	01643-31232	WASHER	9
19	423-33-11640	PISTON	1
20	423-33-11121	PISTON	1
21	423-33-11430	SEAL	1
22	423-33-11411	SEAL	1
23	423-33-11620	SPRING	4
24	423-33-11610	GUIDE	4
25	04020-00514	PIN,DOWEL	4
26	07040-12414	PLUG	4
27	07002-02434	O-RING	4
28	07000-05190	O-RING	1
29	01010-62060	BOLT	10
30	01643-32060	WASHER	10
31	423-33-11320	RETAINER	1
32	07000-05335	O-RING	1
33	04020-00820	PIN,DOWEL	2
34	423-33-00020	FLOATING SEAL ASSEMBLY	1
35	170-27-00023	FLOATING SEAL ASSEMBLY	1
36	423-33-11220	HUB	1
37	07000-05415	O-RING	1
38	423-33-11210	GEAR	1
39	421-33-11260	PLUG	2
40	07002-01223	O-RING	2
41	01010-31445	BOLT	12
42	01643-31445	WASHER	12
43	423-33-11311	GEAR	1
44	01010-61655	BOLT	15
45	01643-31645	WASHER	15
46	232-25-51430	PLATE	5
47	235-25-11360	DISC	4
48	07000-32016	O-RING	2
49	07000-05415	O-RING	1
50	01010-31445	BOLT	16
51	01643-31445	WASHER	16
52	07040-12012	PLUG,(FOR SHIPPING)	1
53	07002-02034	O-RING,(FOR SHIPPING)	1

3. 423-33-11430 picture:

423-33-11440 4233311440 SEAL RING OR FRONT WHEEL BRAKE, WA350-1 538 1
4. Service part number :

PART NO.	PART NO.	Part NO.
707-99-75600	707-35-52660	56B-50-34650
707-99-44340	707-99-59740	707-35-52690
707-99-44340	707-99-59680	707-99-75600
707-99-44380	707-99-59740	707-35-52740
707-99-44290	707-99-62010	707-35-52750
707-99-44310	707-99-62020	707-35-52760
707-99-44340	707-99-62120	707-99-77050
707-99-44380	707-99-64010	707-99-77090
707-99-45040	707-99-64030	707-99-77120
707-99-45220	707-99-64040	707-99-77130
707-99-45230	707-99-64040	707-99-77140
707-99-46030	707-99-64030	707-99-77160
707-99-64080	707-99-64040	707-99-77190
707-99-64120	707-99-46030	707-99-77220
707-99-64130	707-99-46120	707-99-45310

5. FAQ

Q: There is a D-ring seal in the transmission seal kit ,so Why is it D-shaped instead of O-shaped?
A: Finding a D-ring in a Komatsu transmission kit instead of a standard O-ring is another classic example of engineering around a specific mechanical failure.In a heavy-duty powershift transmission, clutch pistons must stroke back and forth rapidly under high pressure (300PSI to 400 PSI or higher) to engage the gears. If you used a standard round O-ring in this environment, it would quickly fail due to a phenomenon called spiral twisting.Here is exactly why Komatsu relies on the D-shape:

It Stops the Seal from "Rolling" (Spiral Failure)When a transmission clutch piston strokes forward, it exerts massive friction on the seal.The O-ring Problem: Because an O-ring is perfectly round, it wants to roll like a wheel inside its groove when the piston moves. As it rolls, different sections of the ring twist at different rates. This severe twisting cuts and tears the rubber internally, causing it to snap. This is known as spiral failure.The D-ring Solution: A D-ring has a wide, completely flat base on one side and a rounded lip on the other. You install the flat base so it sits tightly against the bottom of the machined groove. This flat footprint anchors the seal, physically blocking it from twisting or rolling when the piston slides past it.
It Resists High-Pressure "Extrusion";When hydraulic oil pressure hits a rubber seal, it forces the rubber toward the tiny clearance gap between the moving metal parts.

Q: What are the most common causes of seal ring failure?

A: Common causes include installation damage like pinching or scratching, contaminated hydraulic fluid causing abrasion, excessive pressure leading to extrusion, and surface defects on mating components that wear the ring.

Q: How long do these seal rings typically last?

A: Under normal conditions with clean fluid and proper installation, high-quality PTFE or PU seal rings can last 3,000–6,000 operating hours, depending on the application and cycle rate.

Q: Can I reuse old seal rings?

A: No, it is never recommended to reuse these seal rings. Once installed and exposed to operating conditions, the rings develop permanent wear, deformation, or surface damage. Even if they look fine, they will not form a reliable seal when reinstalled, leading to leaks or pressure loss. Always use new seal rings during every rebuild.

6. Exhibition and Wearhous

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423-33-11440 4233311440 SEAL RING OR FRONT WHEEL BRAKE, WA350-1 538

WA350-1 hydraulic seal kit

O ring seals for bucket cylinder

538 compatible hydraulic seals

NBR FKM O Ring,

Wear Resistance Silicone Rubber O Ring,

Oil Seal Kits

Cylinder Seal Kits

Hydraulic Seal Kits

Breaker Seal Kit

Pump Oil Seal

Piston Seal Rings

Piston Rod Seals

Crankshaft Oil Seals

Excavator Seal Kits

Dust Wiper Seals

O Ring Seals

Floating Oil Seal

Valve Pusher

Gasket Kit

Engine Turbochargers

Friction Disc