31Y1-04771 31Y104771 Hyundai SEAL KIT new aftermarket tractor parts with delivery R170W3
1. Quick Details of seal 31Y1-04771 :
| Part NO. | 31Y1-04771 |
| Machine | Wheeled Excavator |
| Size | OEM |
| Material | Oil seal ,Seal ring |
| Oil seal type |
SEAL KIT |
2. 31Y1-04771 parts on group :
| NO. | PART NO. | PRAT NAME | QTY |
| 1 | 31EK-70031 | CYLINDER ASSEMBLY,LH | 1 |
| 2 | 31EK-70531 | OUTRIGGER CYL-LH | 1 |
| 3 | 31EK-70041 | CYLINDER ASSEMBLY,RH | 1 |
| 4 | 31EK-70541 | OUTRIGGER CYL-RH | 1 |
| 5 | 31EK-75021 | OUTRIGGER CYL SUB ASSEMBLY | 1 |
| 6 | 31EK-71521 | OUTRIGGER CYL SUB | 1 |
| 7 | 31Y1-04620 | TUBE ASSEMBLY | 1 |
| 8 | 31Y1-14150 | TUBE ASSEMBLY | 1 |
| 9 | 31Y1-04670 | ROD ASSEMBLY | 1 |
| 10 | 31Y1-04700 | GLAND | 1 |
| 11 | 31Y1-14170 | GLAND | 1 |
| 12 | S731-075040 | BUSHING-DU | 1 |
| 13 | Y200-075011 | SEAL-ROD | 1 |
| 14 | Y180-075020 | RING-BACK UP | 1 |
| 15 | Y260-075000 | SEAL-STEP | 1 |
| 16 | Y240-075011 | RING-BUFFER | 1 |
| 17 | Y110-075011 | WIPER-DUST | 1 |
| 18 | Y190-089000 | RING-SNAP | 1 |
| 19 | S631-115004 | O-RING | 1 |
| 20 | S641-115003 | RING-BACK UP | 1 |
| 21 | 31Y1-04710 | PISTON | 1 |
| 22 | S632-065004 | O-RING | 1 |
| 23 | S642-065003 | RING-BACK UP | 2 |
| 24 | Y420-125000 | SEAL-PISTON | 1 |
| 25 | Y310-125100 | RING-WEAR | 1 |
| 26 | S113-080102 | SCREW-SET | 1 |
| 27 | Y890-015011 | BALL-STEEL | 1 |
| 28 | S109-160552 | BOLT-SOCKET | 12 |
| 29 | 31YC-11070 | BUSHING-PIN | 2 |
| 30 | S700-075205 | DUST SEAL-DKIY TYPE | 4 |
| 31 | S651-810002 | NIPPLE-GREASE | 1 |
| 32 | 31Y1-04720 | BAND ASSEMBLY | 1 |
| 33 | 31Y1-04730 | BAND SUB ASSEMBLY | 1 |
| 34 | 31YC-31120 | BAND | 1 |
| 35 | S071-022230 | U-BOLT | 1 |
| 36 | S011-100352 | BOLT-HEX | 2 |
| 37 | S201-101002 | NUT-HEX | 2 |
| 38 | S411-100002 | WASHER-SPRING | 4 |
| 39 | 35EA-70320 | CHECK VALVE-DOUBLE | 1 |
| 40 | 35EA-70310 | CHECK VALVE-DOUBLE | 1 |
| 41 | S631-018004 | O-RING | 1 |
| 42 | S107-100702 | BOLT-SOCKET | 4 |
| 43 | 31Y1-04740 | PIPE ASSEMBLY-R,LH | 1 |
| 44 | 31Y1-04750 | PIPE ASSEMBLY-R,RH | 1 |
| 45 | 31Y1-04760 | PIPE ASSEMBLY-B | 1 |
| 46 | Y171-015004 | O-RING | 2 |
| 47 | S107-080402 | BOLT-SOCKET | 8 |
| 48 | 31Y1-14180 | PIPE ASSEMBLY(R)-LH | 1 |
| 49 | 31Y1-14190 | PIPE ASSEMBLY(R)-RH | 1 |
| 50 | 31Y1-04771 | SEAL KIT | 1 |
| 51 | 31Y1-14200 | SEAL KIT | 1 |
3. 31Y1-04771 picture:
4. Service part number :
| PART NO. | PART NO. | Part NO. |
| Y220-085013 | Y220-100013 | Y220-070011 |
| Y180-085020 | Y180-100020 | Y180-070020 |
| Y240-085012 | Y240-100012 | Y240-070011 |
| Y110-085011 | Y110-100011 | Y110-070011 |
| S632-115004 | S631-130004 | S631-090004 |
| S642-115003 | 31YC-CP130 | S641-090002 |
| Y420-120002 | Y420-140002 | Y420-100000 |
| Y310-120203 | Y310-140103 | Y310-100200 |
| Y440-120002 | Y440-140202 | Y440-100000 |
| S632-060004 | S632-075004 | S632-060004 |
| S642-060003 | S642-075003 | S642-060003 |
| S632-120004 | S632-140004 | Y171-015004 |
| Y171-019004 | S631-014004 | Y020-070000 |
| Y020-080000 | Y020-080000 | Y320-095000 |
| S732-085030 | S732-100040 | S732-070040 |
5. FAQ
Q: What’s the correct installation process?
A: Start by taking the cylinder completely apart, removing all old seals, and cleaning every single part thoroughly with solvent. Any leftover grit will scratch surfaces and destroy new seals. Next, inspect the cylinder bore, piston, rod, and seal grooves for scratches, scoring, or corrosion, as even minor damage will cause leaks. Lay out the new seals to identify each one, then lightly lubricate them with clean, compatible hydraulic oil. Install the seals in the right order: fit the piston seals and wear bands first, then the rod seals and wiper seals. When reassembling, use a conical assembly sleeve to protect the seals as you insert the piston into the bore. After assembly, perform a pressure test to check for leaks before putting the cylinder back into service.
Q: What are the most common installation mistakes?
A: Skipping the deep cleaning step lets contamination abrade the seals. Twisting or overstretching seals during installation creates hidden damage that causes leaks immediately. Installing seals backwards, especially rod seals and piston seals, means they won’t hold pressure properly. Using the wrong lubricant can chemically attack the seals and cause premature failure. Forgetting the assembly sleeve tears the seal lips during piston insertion.
Q: How long should this kit last if installed properly?
A: If the hydraulic fluid is clean, installation is done correctly, and there’s no underlying mechanical damage, a high-quality kit can last between 5,000 and 10,000 operating hours. Contaminated oil, excessive side loads, or rod misalignment will drastically shorten this lifespan.
Q: Can I reuse any of the old seals?
A: It’s never a good idea to reuse old seals. Even if they look fine, they lose elasticity over time, develop hidden wear, and have permanent deformation from being installed once. Always use every new seal in the kit for a reliable rebuild.
6. Exhibition and Wearhous
Oil seals,Hydraulic Seals, Cylinders Seal Kits, And More
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