- Register
- Log in
- Quick Cart
-
Shopping cart
(0)
You have no items in your shopping cart.
Personal menu
Menu
Search
Filters
Close
Menu
-
Products
- back
-
Shop by Size
- back
-
BUFFER RINGS
- back
-
INCH
- back
- ID: 0.000" - 0.500"
- ID: 0.500" - 1.000"
- ID: 1.000" - 1.500"
- ID: 1.500" - 2.000"
- ID: 2.000" - 2.500"
- ID: 2.500" - 3.000"
- ID: 3.000" - 3.500"
- ID: 3.500" - 4.000"
- ID: 4.000" - 4.500"
- ID: 4.500" - 5.000"
- ID: 5.000" - 5.500"
- ID: 5.500" - 6.000"
- ID: 6.000" - 6.500"
- ID: 6.500" - 7.000"
- ID: 7.000" - 7.500"
- ID: 7.500" - 8.000"
- View all
-
METRIC
- back
- ID: 0.00 MM - 20.00 MM
- ID: 20.00 MM - 40.00 MM
- ID: 40.00 MM - 60.00 MM
- ID: 60.00 MM - 80.00 MM
- ID: 80.00 MM - 100.00 MM
- ID: 100.00 MM - 120.00 MM
- ID: 120.00 MM - 140.00 MM
- ID: 140.00 MM - 160.00 MM
- ID: 160.00 MM - 180.00 MM
- ID: 180.00 MM - 200.00 MM
- ID: 200.00 MM - 220.00 MM
- ID: 220.00 MM - 240.00 MM
- ID: 240.00 MM - 260.00 MM
- ID: 260.00 MM - 280.00 MM
- ID: 280.00 MM - 300.00 MM
- ID: 300.00 MM - 320.00 MM
- View all
- HEAD SEALS
- OIL SEALS
-
O-RINGS & BACKUPS
- back
-
INCH
- back
- ID: 0.000" - 0.500"
- ID: 0.500" - 1.000"
- ID: 1.000" - 1.500"
- ID: 1.500" - 2.000"
- ID: 2.000" - 2.500"
- ID: 2.500" - 3.000"
- ID: 3.000" - 3.500"
- ID: 3.500" - 4.000"
- ID: 4.000" - 4.500"
- ID: 4.500" - 5.000"
- ID: 5.000" - 5.500"
- ID: 5.500" - 6.000"
- ID: 6.000" - 6.500"
- ID: 6.500" - 7.000"
- ID: 7.000" - 7.500"
- ID: 7.500" - 8.000"
- View all
-
METRIC
- back
- ID: 0.00 MM - 20.00 MM
- ID: 20.00 MM - 40.00 MM
- ID: 40.00 MM - 60.00 MM
- ID: 60.00 MM - 80.00 MM
- ID: 80.00 MM - 100.00 MM
- ID: 100.00 MM - 120.00 MM
- ID: 120.00 MM - 140.00 MM
- ID: 140.00 MM - 160.00 MM
- ID: 160.00 MM - 180.00 MM
- ID: 180.00 MM - 200.00 MM
- ID: 200.00 MM - 220.00 MM
- ID: 220.00 MM - 240.00 MM
- ID: 240.00 MM - 260.00 MM
- ID: 260.00 MM - 280.00 MM
- ID: 280.00 MM - 300.00 MM
- ID: 300.00 MM - 320.00 MM
- View all
- PIN SEALS
-
PISTON SEALS
- back
-
INCH
- back
- OD: 0.000" - 0.500"
- OD: 0.500" - 1.000"
- OD: 1.000" - 1.500"
- OD: 1.500" - 2.000"
- OD: 2.000" - 2.500"
- OD: 2.500" - 3.000"
- OD: 3.000" - 3.500"
- OD: 3.500" - 4.000"
- OD: 4.000" - 4.500"
- OD: 4.500" - 5.000"
- OD: 5.000" - 5.500"
- OD: 5.500" - 6.000"
- OD: 6.000" - 6.500"
- OD: 6.500" - 7.000"
- OD: 7.000" - 7.500"
- OD: 7.500" - 8.000"
- View all
-
METRIC
- back
- OD: 0.00 MM - 20.00 MM
- OD: 20.00 MM - 40.00 MM
- OD: 40.00 MM - 60.00 MM
- OD: 60.00 MM - 80.00 MM
- OD: 80.00 MM - 100.00 MM
- OD: 100.00 MM - 120.00 MM
- OD: 120.00 MM - 140.00 MM
- OD: 140.00 MM - 160.00 MM
- OD: 160.00 MM - 180.00 MM
- OD: 180.00 MM - 200.00 MM
- OD: 200.00 MM - 220.00 MM
- OD: 220.00 MM - 240.00 MM
- OD: 240.00 MM - 260.00 MM
- OD: 260.00 MM - 280.00 MM
- OD: 280.00 MM - 300.00 MM
- OD: 300.00 MM - 320.00 MM
- View all
- ROD END SEALS
-
ROD SEALS
- back
-
INCH
- back
- ID: 0.000" - 0.500"
- ID: 0.500" - 1.000"
- ID: 1.000" - 1.500"
- ID: 1.500" - 2.000"
- ID: 2.000" - 2.500"
- ID: 2.500" - 3.000"
- ID: 3.000" - 3.500"
- ID: 3.500" - 4.000"
- ID: 4.000" - 4.500"
- ID: 4.500" - 5.000"
- ID: 5.000" - 5.500"
- ID: 5.500" - 6.000"
- ID: 6.000" - 6.500"
- ID: 6.500" - 7.000"
- ID: 7.000" - 7.500"
- ID: 7.500" - 8.000"
- View all
-
METRIC
- back
- ID: 0.00 MM - 20.00 MM
- ID: 20.00 MM - 40.00 MM
- ID: 40.00 MM - 60.00 MM
- ID: 60.00 MM - 80.00 MM
- ID: 80.00 MM - 100.00 MM
- ID: 100.00 MM - 120.00 MM
- ID: 120.00 MM - 140.00 MM
- ID: 140.00 MM - 160.00 MM
- ID: 160.00 MM - 180.00 MM
- ID: 180.00 MM - 200.00 MM
- ID: 200.00 MM - 220.00 MM
- ID: 220.00 MM - 240.00 MM
- ID: 240.00 MM - 260.00 MM
- ID: 260.00 MM - 280.00 MM
- ID: 280.00 MM - 300.00 MM
- ID: 300.00 MM - 320.00 MM
- View all
-
VEE RINGS & VEE SETS
- back
-
INCH
- back
- ID: 0.000" - 0.500"
- ID: 0.500" - 1.000"
- ID: 1.000" - 1.500"
- ID: 1.500" - 2.000"
- ID: 2.000" - 2.500"
- ID: 2.500" - 3.000"
- ID: 3.000" - 3.500"
- ID: 3.500" - 4.000"
- ID: 4.000" - 4.500"
- ID: 4.500" - 5.000"
- ID: 5.000" - 5.500"
- ID: 5.500" - 6.000"
- ID: 6.000" - 6.500"
- ID: 6.500" - 7.000"
- ID: 7.000" - 7.500"
- ID: 7.500" - 8.000"
- View all
-
METRIC
- back
- ID: 0.00 MM - 20.00 MM
- ID: 20.00 MM - 40.00 MM
- ID: 40.00 MM - 60.00 MM
- ID: 60.00 MM - 80.00 MM
- ID: 80.00 MM - 100.00 MM
- ID: 100.00 MM - 120.00 MM
- ID: 120.00 MM - 140.00 MM
- ID: 140.00 MM - 160.00 MM
- ID: 160.00 MM - 180.00 MM
- ID: 180.00 MM - 200.00 MM
- ID: 200.00 MM - 220.00 MM
- ID: 220.00 MM - 240.00 MM
- ID: 240.00 MM - 260.00 MM
- ID: 260.00 MM - 280.00 MM
- ID: 280.00 MM - 300.00 MM
- ID: 300.00 MM - 320.00 MM
- View all
-
WEAR RINGS
- back
-
INCH
- back
- OD: 0.000" - 0.500"
- OD: 0.500" - 1.000"
- OD: 1.000" - 1.500"
- OD: 1.500" - 2.000"
- OD: 2.000" - 2.500"
- OD: 2.500" - 3.000"
- OD: 3.000" - 3.500"
- OD: 3.500" - 4.000"
- OD: 4.000" - 4.500"
- OD: 4.500" - 5.000"
- OD: 5.000" - 5.500"
- OD: 5.500" - 6.000"
- OD: 6.000" - 6.500"
- OD: 6.500" - 7.000"
- OD: 7.000" - 7.500"
- OD: 7.500" - 8.000"
- View all
-
METRIC
- back
- OD: 0.00 MM - 20.00 MM
- OD: 20.00 MM - 40.00 MM
- OD: 40.00 MM - 60.00 MM
- OD: 60.00 MM - 80.00 MM
- OD: 80.00 MM - 100.00 MM
- OD: 100.00 MM - 120.00 MM
- OD: 120.00 MM - 140.00 MM
- OD: 140.00 MM - 160.00 MM
- OD: 160.00 MM - 180.00 MM
- OD: 180.00 MM - 200.00 MM
- OD: 200.00 MM - 220.00 MM
- OD: 220.00 MM - 240.00 MM
- OD: 240.00 MM - 260.00 MM
- OD: 260.00 MM - 280.00 MM
- OD: 280.00 MM - 300.00 MM
- OD: 300.00 MM - 320.00 MM
- View all
-
WIPERS & EXCLUDERS
- back
-
INCH
- back
- ID: 0.000" - 0.500"
- ID: 0.500" - 1.000"
- ID: 1.000" - 1.500"
- ID: 1.500" - 2.000"
- ID: 2.000" - 2.500"
- ID: 2.500" - 3.000"
- ID: 3.000" - 3.500"
- ID: 3.500" - 4.000"
- ID: 4.000" - 4.500"
- ID: 4.500" - 5.000"
- ID: 5.000" - 5.500"
- ID: 5.500" - 6.000"
- ID: 6.000" - 6.500"
- ID: 6.500" - 7.000"
- ID: 7.000" - 7.500"
- ID: 7.500" - 8.000"
- View all
-
METRIC
- back
- ID: 0.00 MM - 20.00 MM
- ID: 20.00 MM - 40.00 MM
- ID: 40.00 MM - 60.00 MM
- ID: 60.00 MM - 80.00 MM
- ID: 80.00 MM - 100.00 MM
- ID: 100.00 MM - 120.00 MM
- ID: 120.00 MM - 140.00 MM
- ID: 140.00 MM - 160.00 MM
- ID: 160.00 MM - 180.00 MM
- ID: 180.00 MM - 200.00 MM
- ID: 200.00 MM - 220.00 MM
- ID: 220.00 MM - 240.00 MM
- ID: 240.00 MM - 260.00 MM
- ID: 260.00 MM - 280.00 MM
- ID: 280.00 MM - 300.00 MM
- ID: 300.00 MM - 320.00 MM
- View all
-
Shop by Make and Model
- back
- BELL
- BOBCAT
- CASE
-
CATERPILLAR EQUIPMENT
- back
- AGRICULTURAL TRACTORS
-
ATTACHMENTS
- back
-
HYDRAULIC HAMMERS
- back
- APPLICATION
- H63
- H63S
- H90C
- H90CS
-
BACKHOE LOADERS
-
CRAWLER DOZERS
- back
- 6
-
3P
- back
- TILT
-
3S
- back
- TILT
-
4S
- back
- DOZER TILT
-
5A
- back
- LIFT
- 5S
-
6S
- back
- TILT
-
7A
- back
- TILT
-
7S
- back
- DOZER TILT
-
7SU
- back
- DOZER TILT
-
7U
- back
- DOZER TILT
-
8A
- back
- DOZER LIFT
-
8B
- back
- PIN PULLER
-
8D
- back
- RIPPER PIN PULLER
-
8R
- back
- TILT
-
8S
- back
- DOZER TILT
- LIFT LH
- LIFT RH
- TILT
- View all
-
CRAWLER LOADERS
-
DUMP TRUCKS - ARTICULATED
-
EXCAVATORS
- EXCAVATORS - FRONT-SHOVEL
- EXCAVATORS - WHEEL
-
FORESTRY - TREE HARVESTERS
- back
- 518
-
INTEGRATED TOOLCARRIERS
- LANDFILL COMPACTORS
-
LOADERS - SKID STEER
-
LOADERS - WHEEL
-
MOTOR GRADERS
-
OFF-HIGHWAY TRUCKS
- View all
-
FIAT-HITACHI
-
FORD
-
GEHL
-
GRADALL
-
GROVE CRANE
-
HEIL
-
HIAB
- back
-
CRANES
- back
- 45
- 70
- 71
-
100
- back
- BOOM EXT
- INNER BOOM
- 120
- 140
- 175
- 650
- 985
-
1165
- back
- INNER BOOM
- OUTER BOOM
- 1770
-
2640
- back
- INNER BOOM
- OUTER BOOM
-
1165/1
- back
- BOOM EXT
- INNER BOOM
- OUTER BOOM
-
1165/2
- back
- BOOM EXT
- INNER BOOM
- OUTER BOOM
-
HITACHI
- back
-
EXCAVATORS
- back
- EX100
- EX1000
-
EX100-10
- back
- BOOM LH
-
EX100-11
- back
- BOOM LH
-
EX100-12
- back
- BOOM LH
-
EX100-13
- back
- BOOM LH
-
EX100-14
- back
- BOOM LH
-
EX100-15
- back
- BOOM RH
-
EX100-16
- back
- BOOM RH
-
EX100-17
- back
- BOOM RH
-
EX100-18
- back
- BOOM RH
-
EX100-19
- back
- BOOM RH
-
EX100-20
- back
- BUCKET
-
EX100-21
- back
- BUCKET
-
EX100-22
- back
- BUCKET
-
EX100-23
- back
- BUCKET
- View all
-
EXCAVATORS - COMPACT
- LOADERS - WHEEL
-
OFF-HIGHWAY TRUCKS
- back
-
EH1600
- back
- HOIST
- SUSPENSION REAR
- HYUNDAI
- JCB
-
JLG
-
JOHN DEERE
- back
-
BACKHOE ARM
- back
- 310D
-
BACKHOE LOADERS
- COMPACTORS
-
CRAWLER DOZERS/LOADERS
-
EXCAVATORS
-
EXCAVATORS - COMPACT
- back
-
27 ZTS
- back
- ARM
- BLADE
- BUCKET
- BUCKET CLAMP
- 27C ZTS
- 27D
-
35 ZTS
- back
- ARM
- BLADE LIFT
- BOOM
- BUCKET
- BUCKET CLAMP
- SWING
-
35C ZTS
- back
- ARM
- BLADE LIFT
- BOOM
- BUCKET
- BUCKET CLAMP
- SWING
- 35D
-
50 ZTS
- back
- ARM
- BLADE TILT
- BOOM
- BUCKET
- BUCKET CLAMP
- SWING
- 50C ZTS
- 50D
- 60D
- 75C
- 75D
- 80C
-
FORESTRY - FELLER BUNCHERS
- back
- 743
- 853
- 493D
- 653E
-
693B
- back
- BOOM
- CROWD
- MULTI-STEM
- SHEAR
- SHEAR TILT
- TILT
- 693C
- 693D
- 743A TREE HARVESTERS
- 793D
-
LOADERS - SKID STEER
- back
- 240
- 250
- 260
- 270
- 280
- 317
- 320
- 325
-
328
- back
- BOOM
- BUCKET
- QUIK-TATCH
-
332
- back
- BOOM
- BUCKET
- QUIK-TATCH
- 318D
- 320D
- 323D
-
326D
- back
- BOOM
- BUCKET (LH)
- BUCKET (RH)
-
328D
- back
- BOOM
- BUCKET (LH)
- BUCKET (RH)
-
329D
- back
- BOOM
- BUCKET (LH)
- BUCKET (RH)
- View all
-
LOADERS - WHEEL
- back
- 844
- 244J
- 300 (LOADER ARRANGEMENT 7300; 7320; BACKHOE ARRANGEMENT 92; 9250)
- 344E
- 400 (LOADER ARRANGEMENT 7300; 7320; BACKHOE ARRANGEMENT 92; 9250)
- 401A (LOADER ARRANGEMENT 7300; 7320; BACKHOE ARRANGEMENT 92; 9250)
- 444 (BACKHOE ARRANGEMENT 9450)
- 444C (BACKHOE ARRANGEMENT 9450)
- 444CH (BACKHOE ARRANGEMENT 9450)
- 444D
- 444E
- 444H
- 444H LL
- 444J
- 444K
- 524K
- View all
-
MOTOR GRADERS
-
SCRAPERS
-
SKIDDERS
- back
- 540
- 740
-
340D
- back
- BLADE LIFT
- STEERING
- 3605 GRAPPLE SKIDDERS
- 440 (BACKHOE ARRANGEMENT 93; 93A; 95; 95A)
- 440A (BACKHOE ARRANGEMENT 93; 93A; 95; 95A)
- 440B (BACKHOE ARRANGEMENT 93; 93A; 95; 95A)
-
440C SKIDDERS/GRAPPLE SKIDDERS
- back
- BLADE LIFT
- BOOM
- GRAPPLE
- STEERING
- 440D
- 448 SKIDDERS/GRAPPLE SKIDDERS
- 540A
- 540B
-
540D
- back
- BLADE LIFT
- BOOM
- GRAPPLE
- STEERING
-
548D GRAPPLE SKIDDERS
- back
- BLADE LIFT
- BOOM
- GRAPPLE
- STEERING
- 640 SKIDDERS/GRAPPLE SKIDDERS
- 640D
- View all
- View all
-
Shop Using Catalog
- back
-
HYDRAULIC PNEUMATIC SEALS & PACKING
- back
-
CATERPILLAR PARTS
-
METAL & TEFLON SCRAPERS
- METAL PISTON RINGS
- PIP RINGS
- PISTON CUPS
-
PISTON SEALS 2-PC
- back
- PISTON SEAL 2-PC METRIC
- PISTON SEAL 2-PC MISCELLANEOUS
-
PISTON SEAL PS1400
- back
- BRONZE/PTFE
- GLASS/PTFE
-
PISTON SEAL PS1500
- back
- URETHANE
-
PISTON SEAL PS1600
- back
- GLASS/PTFE
- URETHANE
-
PISTON SEAL PS1800
- back
- BRONZE/PTFE
- GLASS/PTFE
-
PISTON SEAL PS1900
- back
- GLASS/PTFE
- PISTON SEAL PS2000 NYLON
-
PISTON SEAL PS2470
- back
- BRONZE/PTFE
- URETHANE
- PISTON SEAL PS2700
-
PISTON SEAL PS914
- back
- CATERPILLAR
-
PISTON SEAL PSC
- back
- FLUOROTREL
- ROD
- STANDARD
- WIDE BASE
- PISTON SEAL PSM
- PISTON SEAL PSQ
- PISTON SEAL PSU
- PISTON SEALS 3-PC
- PISTON SEALS 4-PC
-
PISTON SEALS 5-PC
-
PISTON SEALS PNEUMATIC
-
POLYPACKS
-
RETAINER RINGS
- back
-
RETAINER RING INCH
- back
- SPIRAL INTERNAL
- ROD BUFFER SEALS
- T-SEALS
-
U-CUPS
- UNITIZED PISTONS
- View all
-
O-RINGS & BACK-UP RINGS
- back
-
BACK-UP RINGS
- back
- BACKUP HYTREL
-
BACKUP LEATHER (AN6244)
- back
- BU
-
BACKUP LEATHER (AN6246)
- back
- BU
-
BACKUP LEATHER (MS28777)
- back
- BU
- BACKUP NITRILE INCH
- BACKUP NYLON INCH
- BACKUP NYLON METRIC
- BACKUP TEFLON METRIC
-
BACKUP TEFLON MIL-SPEC
- back
- BU
- BACKUP TEFLON SOLID INCH
- BACKUP TEFLON SPIRAL INCH
- BACKUP TEFLON SPLIT INCH
- BACKUP URETHANE INCH
- BACKUP URETHANE METRIC
- BACKUP VITON INCH
- O-RING KITS & BACK-UP RING KITS
-
O-RINGS & O-RING CORD
- back
-
MORISEI PERFLUOROELASTOMER
- back
- ORIN
- ORING AFLAS
-
ORING AMS7270 (AN123***)
- back
- ORIN
-
ORING AS3551 (BN70)
- back
- ORIN
- O-RING BUTYL
-
ORING CHEMRAZ
- back
- ORIN
- ORING CORD EPR/EPDM
- ORING CORD NITRILE
- ORING CORD SILICONE
- ORING CORD URETHANE
- ORING CORD VITON
- ORING EPR/EPDM INCH
- ORING EPR/EPDM METRIC
- ORING FLUOROSILICONE
- ORING HNBR
- ORING KALREZ
- View all
- QUAD RINGS
-
SEAL-KITS
- back
-
CATERPILLAR PARTS
-
HUNGER HYDRAULICS
- back
- HUNGER PARTS
-
INDUSTRIAL KITS
- back
- ATLAS
- HYDROLINE KITS
-
INDUSTRIAL/MOBILE KITS
- back
- MISC. KITS
- MILLER FLUID POWER
- MISC (EXCLUDE FROM 999)
-
ORTMAN
- back
- KITS
- PARKER-HANNIFIN
-
ROYAL
- back
- ROD/PISTON KITS
-
SHEFFER
- back
- ROD/PISTON KITS
-
TOMPKINS-JOHNSON
- back
- KITS
-
VICKERS
- back
- KITS
- PUMP/MOTOR KITS
-
WHITE MOTORS
- back
- PUMP/MOTOR KITS
-
MOBILE KITS
- back
- ALLIS-CHALMERS
-
ANTHONY
- back
- PUMP PARTS
- RETAINER RINGS
-
ATLAS COPCO
- back
- KITS
-
BARKO
- back
- KITS
-
BARRETT
- back
- KITS
-
BELL TREE HARVESTERS
- back
- KITS
- BOBCAT
-
BREAKER TECH
- back
- KITS
- CAMECO
- CASCADE
- CAT KITS / MISC. PARTS
-
CHAMPION MOTOR GRADERS
- back
- KITS
- CHIEF
- CLARK LIFT TRUCKS
- COMMERCIAL TELESCOPIC
-
CROSS
- back
- KITS
- View all
-
MOTOR KITS
- back
-
CHARLYNN KITS
- back
- KITS
-
O-RING KITS & BACK-UP RING KITS
- back
-
CAT KITS / MISC. PARTS
- back
- KITS (INCH)
-
SHAFT SEALS
- back
-
OIL SEALS
- OTHER
- CONSUMABLE
- GROUP UNDEFINED
- Industries
- Blog
- Reference Materials
- Contact us
- My account
Products tagged with '8550-000'
Sort by
PISTON CUPS
H&D SKU: PC-U550
0.000" x 5.500" x 0.750" (0.00 mm x 139.70 mm x 19.05 mm)
$63.46
Categories
Facebook
Twitter
Linkedin