WYS (Wonyoung Seal Corp.) – The World Standard in OEM Seals from South Korea
Established on July 17, 1988, the South Korean corporation Wonyoung Seal Corp. (WYS) is one of the leading global leaders in the design and production of high-tech hydraulic and pneumatic seals for industry and heavy construction equipment.
Thanks to its uncompromising quality, WYS is a direct OEM supplier (for initial installation) of global giants in heavy engineering such as Hyundai Heavy Industries and Doosan Infracore. The brand's products are successfully exported to over 40 countries worldwide, covering the most stringent requirements for repair kits for Komatsu, Volvo, Caterpillar, Hitachi, Kobelco, etc.
Key technological advantages of WYS:
Own R&D Center: Established in 2001, the company develops patented, innovative materials, including its own high-performance, heat-resistant polyurethane and polyamide modifications.
Laser precision and CNC technology: Thanks to state-of-the-art production lines using pressing, injection and CNC turning, WYS seals are distinguished by perfectly formed sealing edges and extremely low surface roughness.
Extreme durability: The products are designed to withstand huge hydraulic peaks, peak pressures and extreme temperature amplitudes (from deep winter conditions to high operating temperatures), drastically reducing frictional wear.
Full quality control: Each new profile undergoes internal laboratory tests for hydraulic durability and mechanical load on specialized machines.
International recognition and certificates:
ISO 9001 quality certificate (since 2003).
ISO 14001 Environmental Protection Certificate (since 2005).
Official status for technological innovation Inno-Biz and Main-Biz in South Korea.
Winner of numerous government awards from the Ministry of Knowledge and Economy and the Korea International Trade Association.
By choosing WYS products from Satellite Nikis, you receive components with authentic Korean OEM quality that guarantee a long service life of your hydraulic systems at extremely competitive prices.
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Note: All manufacturer's names, descriptions, OEM part numbers, and symbols are used for reference purposes only. The company "Satelit Nikis" Ltd. is in no way affiliated with the respective original equipment manufacturers and operates strictly as an independent aftermarket supplier.
115
products
Products
Buffer seal HBI 59.93x76.99x4.76 PU95 WYS/Korea, up to 350 bar, Caterpillar 6J-6916
Product data
Ød=59.93mm; ØD=76.99 mm; H=4.76 mm
OE References:
Caterpillar 6J-6916
Suitable for:
QUARRY TRUCK
775B
TRUCK
773 769 777 769B 769C 777B 773B
TRACK LOADER
951C 941B 951B 941
TRACTOR
772B 768C 768B 776B 772 776
Material: High performance polyurethane PU
Hardness: 95 Shore A
Profile type: HBI / Rectangular cross-section buffer ring
Working pressure: 0 - 350 bar
Working temperature: -35°C ~ +110°C
Speed: 0.03~1.0 m/s
Media: mineral-base hydraulic oils (general petroleum hydraulic fluid oils) and greases
Manufacturer:
In stock 18 pcs.
Buffer seal HBI 69.47x86.75x4.78 PU95 WYS/Korea, up to 350 bar, Caterpillar 6J-6553
Product data
Ød=69.47mm; ØD=86.75mm; H=4.78 mm
OE References:
Caterpillar 6J-6553
Suitable for:
TRACK-TYPE TRACTOR
D7H D8N
WHEEL TRACTOR
621 639D 631D 651B 641 621B 637D 657B 621E 633D 651 641B 657
RIPPER
963 7
TRUCK
789
WHEEL SCRAPER
615 631D 631C 631E 631B 633 639D 627B 627E 615C 637 621E 633B 637E 633D 621B 637B 637D
TRACK LOADER
977K 977L 963
EXCAVATOR
215B 215C 219 215
BACKHOE LOADER
438 436
BULLDOZER
8S 8U 7SU 7A 7S 7U 8SU 7S LGP 8A
WINCH
57H
WHEEL LOADER
936E 980C 936 G936 988
Material: High performance polyurethane PU
Hardness: 95 Shore A
Profile type: HBI / Rectangular cross-section buffer ring
Working pressure: 0 - 350 bar
Working temperature: -35°C ~ +110°C
Speed: 0.03~1.0 m/s
Media: mineral-base hydraulic oils (general petroleum hydraulic fluid oils) and greases
Manufacturer:
In stock 18 pcs.
Buffer seal HBI 56.77x74.05x4.78 PU95 WYS/Korea, up to 350 bar, Caterpillar 5J-3616
Product data
Ød=56.77mm; ØD=74.05mm; H=4.78 mm
OE References:
Caterpillar 5J-3616
Suitable for:
WHEEL TRACTOR
627 621 623 615C 615
INTEGRATED TOOLCARRIER
IT18
TRACK LOADER
941B 977K 963 931C II 931B 935C 951C 931C 943 951B 941 935B 935C II
SOIL COMPACTOR
825C 825B
WHEEL DOZER
834 824B 834B 824C
MOTOR GRADER
14G
LANDFILL COMPACTOR
826C 826B
WINCH
53 55
BACKHOE
931 D3
WHEEL LOADER
916 920 988B G916 980B 980C 930 980 966C 988 930R 930T
WHEEL SKIDDER
508
TRACK-TYPE TRACTOR
D3B D4B D4H D5H D6C
RIPPER
963 3 953 5 943
WHEEL SCRAPER
615 621 613C
BULLDOZER
4S 824S 825 5A 5P 5S 814S 3S 3P 4A
Material: High performance polyurethane PU
Hardness: 95 Shore A
Profile type: HBI / Rectangular cross-section buffer ring
Working pressure: 0 - 350 bar
Working temperature: -35°C ~ +110°C
Speed: 0.03~1.0 m/s
Media: mineral-base hydraulic oils (general petroleum hydraulic fluid oils) and greases
Manufacturer:
In stock 18 pcs.
Buffer seal HBI 75.82x93.1x4.78 PU95 WYS/Korea, up to 350 bar, Caterpillar 6J-6915
Product data
Ød=75.82 mm; ØD=93.1 mm; H=4.78 mm
OE References:
Caterpillar 6J-6915
Suitable for:
TRACK-TYPE TRACTOR
D7R D7G D7H D6D SR D8K D8L D8N D6H II D6F SR D5B D9H D7R II D6D D6R D6E D6G D6H
RIPPER
977 8D 953 951 955 7 6 5 4 8 943
HYDRAULIC CONTROL
163 183B 153
TRACK LOADER
953
WHEEL SCRAPER
631D 631C 631E 623B 623E 631B 637 641 641B 637E 637B 637D
EXCAVATOR
235B 235C 235
BULLDOZER
8S 8U 6 5A 9A 9C 9U 5S 9S 7SU 6A 6S 7A 7S 7U 6SU 8SU 7S LGP 8A
WINCH
57H 57 56 55 58 56H
WHEEL LOADER
980B 980C 950B/950E 980 950B 950E 950
Material: High performance polyurethane PU
Hardness: 95 Shore A
Profile type: HBI / Rectangular cross-section buffer ring
Working pressure: 0 - 350 bar
Working temperature: -35°C ~ +110°C
Speed: 0.03~1.0 m/s
Media: mineral-base hydraulic oils (general petroleum hydraulic fluid oils) and greases
Manufacturer:
In stock 18 pcs.
Buffer seal HBI 82.17x99.45x4.78 PU95 WYS/Korea, up to 350 bar, Caterpillar 6J-7167
Product data
Ød=82.17 mm; ØD=99.45 mm; H=4.78 mm
OE References:
Caterpillar 6J-7167
Suitable for:
TRACK-TYPE TRACTOR
D8K D8L D11N D10 D9L D9H
WHEEL TRACTOR
651E 657E
RIPPER
8D 11 10 9D 9 8
HYDRAULIC CONTROL
183B
TRACK LOADER
973 983B 983
WHEEL SCRAPER
666 666B 651E 651B 641 641B 657 657E 651 657B
LOGGER
227
EXCAVATOR
229 225 215B 225B 225D 215
BULLDOZER
8S 8U 10C 9C 9U 9S 11U 10S 10U 11SU 8A
WINCH
59 58
WHEEL LOADER
966F II 988B 992C 950B/950E 966D 966F 966E 950B 950E 988
Material: High performance polyurethane PU
Hardness: 95 Shore A
Profile type: HBI / Rectangular cross-section buffer ring
Working pressure: 0 - 350 bar
Working temperature: -35°C ~ +110°C
Speed: 0.03~1.0 m/s
Media: mineral-base hydraulic oils (general petroleum hydraulic fluid oils) and greases
Manufacturer:
In stock 18 pcs.
Buffer seal HBI 37.72x52.14x2.92 PU95 WYS/Korea, up to 350 bar, Caterpillar 3Y-8948
Product data
Ød=37.72 mm; ØD=52.14 mm; H=2.92 mm
OE References:
Caterpillar 3Y-8948
Suitable for:
WHEEL LOADER
950B 950E
Material: High performance polyurethane PU
Hardness: 95 Shore A
Profile type: HBI / Rectangular cross-section buffer ring
Working pressure: 0 - 350 bar
Working temperature: -35°C ~ +110°C
Speed: 0.03~1.0 m/s
Media: mineral-base hydraulic oils (general petroleum hydraulic fluid oils) and greases
Manufacturer:
In stock 18 pcs.
Buffer seal HBI 37.72x52.14x2.92 PU95 WYS, up to 350 bar, Caterpillar 6J-9733
Product data
Ød=37.72 mm; ØD=52.14 mm; H=2.92 mm
OE References:
Caterpillar 6J-9733
Suitable for:
WHEEL TRACTOR
627B 657E 637D 657B
INTEGRATED TOOLCARRIER
IT14B IT18B IT28 IT12B IT28B IT18
HYDRAULIC CONTROL
143 141 140
TRACK LOADER
939 933 931C II 931 931B 935C 931C 935B 935C II
BACKHOE LOADER
416 426
WINCH
53 59 58
MOTOR GRADER
12G 120G 140B 120B 16 120 160G 140G 12F 16G 130G 140 14G 14E
BACKHOE
931 D3
COMPACT WHEEL LOADER
910 910F 910E
WHEEL LOADER
G926 916 920 988B G916 926 930 926E 950 930R 930T
WHEEL SKIDDER
508
TRACK-TYPE TRACTOR
D3B D3C D4B D5 D8L D5B D3C II D10 D9L D9H D6C D6D
RIPPER
8D 3 10 9D 9 8
TOOL BAR
6
TRUCK
769 769B
BULLDOZER
8S 8U 10C 9C 9U 9S 3S LGP 3S 10S 3P 10U 8A
RIPPER SCARIFIER
140G 12G 130G
Material: High performance polyurethane PU
Hardness: 95 Shore A
Profile type: HBI / Rectangular cross-section buffer ring
Working pressure: 0 - 350 bar
Working temperature: -35°C ~ +110°C
Speed: 0.03~1.0 m/s
Media: mineral-base hydraulic oils (general petroleum hydraulic fluid oils) and greases
OEM reference: Caterpillar 6J-9733 (6J9733)
Manufacturer:
In stock 13 pcs.
Hydraulic piston seal SPGA 110x95.75x6.9 polyamide + NBR70 WYS, up to 270 bar ,Caterpillar 9X-7301
Данни за продукта
ØD=110 mm; Ød=95.75 mm; H=6.9 mm
OE References:
Caterpillar 9X-3604
Suitable for:
TRACK-TYPE TRACTOR
D4 D6K XL D6T LGPPAT D6T XL PAT D6T XW PAT D6K2 XL D6K2 D6T XW D6K2 LGP D6T D6K D6K LGP
WHEEL TRACTOR
623H
WHEELED EXCAVATOR
M315D2 M322D MH MH3024 M322D M318D M318C M318C MH M320F M320D2 M324D2 MH M313C M313D M322D2 MH M318D MH M314F
WHEEL TRACTOR-SCRAPER
623 623K LRC 623K
EXCAVATOR
311D LRR 318E L 312D L 316F L 314D LCR 317-A M315F 312E 312B 312C 312D 315D L 319D 318D2 L 314D CR 319C 311B 311C 318F L 318B N 312E L 312-A 318C 318F 318B 319D LN 317-A N 314F CR 312B L 317B LN 311-A 317 N 315-A 316F 314E LCR 315B L 319D L 315-A L 315B 315C 318D L 312C L 316E L 315F LCR 313D2 314E CR 315B FM L 314C 313D2 LGP 317B L M315 M318 313B 313D
MATERIAL HANDLER
MH3022 MH3024
MOTOR GRADER
12M 12M 3 12M 2 120M 160M 140M 3 AWD 12M 3 AWD 140M 3 140M 2 120M 2 160 140M 160M 2 160M 3 14L 150 160M 3 AWD 140
TELEHANDLER
TH560B TH580B TH460B
Material: outer ring made of polyamide (Nylon, PA) + inner ring (energizer) made of nitrile rubber NBR 70
Profile type: SPGA
Working pressure: 0 - 270 bar
Работна температура: -30°C ~ +110°C
Speed: 0.008~1.0 m/s
Media: Mineral-based hydraulic oils, greases and industrial fluids
Manufacturer:
In stock 12 pcs.
Hydraulic piston seal SPGA 160x140.63x9.4 polyamide + NBR70 WYS, up to 270 bar ,Caterpillar 9X-3604
Данни за продукта
ØD=160 mm; Ød=140.63 mm; H=9.4 mm
OE References:
Caterpillar 9X-3604
Suitable for:
WHEEL TRACTOR
631K 637K
TRACK FELLER BUNCHER
1190T 2390 2391 1190 511 2290 522 521 1090 521B 532 522B 1290T 2491
WHEELED EXCAVATOR
M325C MH MH3024 M318D M318C M318C MH M320F M320D2 M322D2 MH M318D MH
WHEEL TRACTOR-SCRAPER
631K 637 631 637K
LOG LOADR FORST MACH
558
WHEEL SCRAPER
637K
FRONT SHOVEL
5080 385C 5090B
EXCAVATOR
330 L 345B II 345B L 330-A L 349D L 330D MH 320-A L 325D FM LL 325B L 329D L 323F SA 320-A S 320-A N 336D 349D2 L 325-A 325F LCR 323F LN 336D2 L 319D 330D LN 319C 323F 568 FM LL 323D 320 345C L 349E L 350-A 323 318C 325-A L 325C L 318B 323D SA 345D L VG 323D S 336D LN 320-A 319D LN 340D L 323D L 325C FM 336 323D LN 340F L UHD 385C FS 349E L VG 330B L 330B LN 385B 330D FM 345B 345C 345D 330-A 336 MHPU 320E L 325D FM 345D L 349F L 320N 325D L 330C LN 320B 320C 330-A L 349D2 319D L 330 LN 323E L 325 L 330C L 321D LCR 336D L 323E SA 320E LN 320B S 323F OEM 336D2 320F L 330-A LN 320B N 320B L 323E LN 350-A L 345B II MH 365B II 330B 330C FM 330C 330D M318 320 L 330C MH M325D L MH 349D 324D L 350 L 330D L 365C 336E L 325C 349E 325F 365B
MATERIAL HANDLER
MH3022 M325D L MH
MOBILE HYD POWER UNIT
345D 336D L 336E HVG 330D 336D 323F OEM
WHEEL LOADER
962 950K 962K 950M 962M 993 993K
Material: outer ring made of polyamide (Nylon, PA) + inner ring (energizer) made of nitrile rubber NBR 70
Profile type: SPGA
Working pressure: 0 - 270 bar
Работна температура: -30°C ~ +110°C
Speed: 0.008~1.0 m/s
Media: Mineral-based hydraulic oils, greases and industrial fluids
Manufacturer:
In stock 13 pcs.
Hydraulic piston seal SPGA 170x150.63x9.4 polyamide + NBR70 WYS, up to 270 bar,Caterpillar 9X-3605, 9X-3607
Данни за продукта
ØD=170 mm; Ød=150.63 mm; H=9.4 mm
OE References:
Caterpillar 9X-3605, 9X-3607
Suitable for:
SHOVEL LOGGER
345C
TRACK FELLER BUNCHER
TK1051
WHEELED EXCAVATOR
M322D MH M322D2 MH3026 W345C MH M322F M322D M322C W330B W345B II M324D2 MH M325B M330D
WHEEL TRACTOR-SCRAPER
637
LOGGER
322C
EXCAVATOR
336E LN 322B L 330 L 345B II 345B L 336E LH 324D FM LL 330-A L 349D L 325-A LN 328D LCR 329D LN 325B L 329D L 324D FM 336D 324D 336E 349D2 L 325-A 336D2 L 330D LN 322B LN 340D2 L 324E L 568 FM LL 322N 325 LN 322-A LN 345C L 349E L 350-A 325-A L 322 LN 345D L VG 322C 336D LN 340D L 322 L 349E L VG 324E LN 330B L 330B LN 330D FM 385C 345B 345C 345D 330-A 345D L 349F L 325B LN 385C L 325D L 330C LN 330-A L 349D2 330 LN 325 L 330C L 326F L 336D L 336D2 330-A LN 568 FM 350-A L 345B II MH 322C FM 330B 330C FM 330C 330D 326F 324D LN 345C MH 349D 324D L 350 L 330D L 322-A L 336E L 322-A N 325C 326F LN 349E 325D M320
MATERIAL HANDLER
MH3024
WHEEL DOZER
834G 834H
MOBILE HYD POWER UNIT
330D L 345C 336D L 330D 325D 345C L
WHEEL LOADER
980 XE 966 972M 972 972L 966 GC 972 XE 966 XE 966XE 966K XE 980 950L 962M 972M XE 966M XE 980XE 980L 972XE 980M 966H 966L 966K 966M
Material: outer ring made of polyamide (Nylon, PA) + inner ring (energizer) made of nitrile rubber NBR 70
Profile type: SPGA
Working pressure: 0 - 270 bar
Работна температура: -30°C ~ +110°C
Speed: 0.008~1.0 m/s
Media: Mineral-based hydraulic oils, greases and industrial fluids
Manufacturer:
In stock 33 pcs.
