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SEAL --TO OUTPUT BEARING RETAINER 8H8257 - Caterpillar


8H8257 SEAL --TO OUTPUT BEARING RETAINER Caterpillar parts 24H, 24M, 3192, 550, 550B, 560B, 570, 570B, 580, 580B, 583H, 583K, 621, 621B, 621E, 621F, 621G, 621H, 621K, 623F, 623G, 623H, 623K, 623K LRC, 630B, 631B, 633, 7241, 7251, 824C, 824G, 824G II, 824H, 82...
Rating:
20
Alternative (cross code) number:
CA8H8257
8H-8257
8H8257
Caterpillar 8H8257 SEAL --TO OUTPUT BEARING RETAINER
Weight: 0.010 pounds 0 kg.
Information:
CROSS SECTION DIAMETER  6.99  mm
DASH SIZE  452 
ID  291.46  mm
MATERIAL  Nitrile (NBR) Rubber - 75 Duro 
OD  0  mm

Buy SEAL --TO OUTPUT BEARING RETAINER 8H8257 Caterpillar genuine, new aftermarket tractor parts with delivery
LANDFILL COMPACTOR, WHEEL TRACTOR-SCRAPER,

Compare Prices: .

As an associate, we earn commssions on qualifying purchases through the links below
$25.74

30 Jun 2025

US: WHOnh21
Replacement for fits Seal 8H8257 for Caterpillar 72 7241 7251 824C 824G 824GII 824H 824K 825G 825GII
Gelako Replacement for fits Seal 8H8257 for Caterpillar 72 7241 7251 824C 824G 824GII 824H 824K 825G 825GII || Kindly provide us with your Appliance Model Number and we will check if it's the right part you need. If not, we will sell you the correct one || Design improved for more durability, stable and updated characteristics, high reliability || PREMIUM QUALITY || Most items are 1 packs, unless specifically stated that it is a 2 pack
$25.29

30 Jun 2025

US: WHOnh21
Replacement for fits Seal 8H8257 for Caterpillar 834H 834K 836 836G 836H 836K 972G 980GII 980KHLG
Gelako Replacement for fits Seal 8H8257 for Caterpillar 834H 834K 836 836G 836H 836K 972G 980GII 980KHLG || Kindly provide us with your Appliance Model Number and we will check if it's the right part you need. If not, we will sell you the correct one || Design improved for more durability, stable and updated characteristics, high reliability || PREMIUM QUALITY || Most items are 1 packs, unless specifically stated that it is a 2 pack
$23.52

30 Jun 2025

US: panjinlonghuish
Replacement for fits Seal 8H8257 Fits Caterpillar 72 7241 7251 824C 824G 824GII 824H 824K 825G 825GII
ksisbdbw Replacement for fits Seal 8H8257 Fits Caterpillar 72 7241 7251 824C 824G 824GII 824H 824K 825G 825GII || [PREMIUM QUALITY] Brand New & High-Quality parts. Strict quality control standards to Build and test || Stable and updated characteristics || Brand new || 100% Manufacturer Verified: All parts are tested and verified to ensure 100% operational quality
Number on catalog scheme: 13
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Compatible equipment models: 8H8257:

LANDFILL COMPACTOR  826C   826G   826G II   826H   826K   836   836G   836H   836K  
LOAD HAUL DUMP  R2900   R2900G  
MARINE GEAR  3192  
MARINE TRANSMISSION  7241   7251  
MOTOR GRADER  24H   24M  
PIPELAYER  583H   583K  
SOIL COMPACTOR  825G   825G II   825H   825K  
TRACK-TYPE TRACTOR  D8H   D8K  
UNDERGROUND ART TRUCK  AD30   AD40   AD45   AD45B   AD55   AD55B   AD60   AE40   AE40 II  
WHEEL HARVESTER  550   550B   560B   570   570B   580   580B  
WHEEL SCRAPER  621B   621G   623F   623G   630B   631B   633  
WHEEL TRACTOR  621   621E   621F   621G   621H   623H  
WHEEL TRACTOR-SCRAPER  621K   623K   623K LRC   Caterpillar

Information:


Grounding conductor for field wiring
Bonding point for internal bonding of equipment parts to ground
Caution. Refer to manual for more information.
Risk of electrical shock
Input
Output
Bypass input switch
DC current
Alternating current
Phase
Positive
Negative
Neutral
Caution - See service manual
No Service
Read service manual
Telecommunication connection
Not a connection - Not a connection for a telecommunication network.
High leakage current - Earth connection essential before connecting the supply.
Lithium battery - Danger of explosion if the battery is incorrectly replaced. Replace the battery with the same type of battery or replace the battery with an equivalent battery. Dispose of the batteries according to the manufactures instructions.
The heat sink or the bracket is not grounded. - Test before touching.
Safety extra low voltage connections only.
Wait for 5 minutes before disconnecting all power sources before removing any covers or panels.
Illustration 1 g00785184
Bypass Input
Illustration 2 g00785185
The system is designed for services that have a three wire grounded wire configuration.
Illustration 3 g00785207
The system is designed for services that have a delta configuration.
Illustration 4 g00785208
The system is designed for services that are impedance grounded.
Illustration 5 g00785210
The system is designed for with services that have a 4-wire grounded wire configuration.
Illustration 6 g00785212
The UPS receives power from multiple sources.
Illustration 7 g00785215
Maintenance bypass switch
Illustration 8 g02442538
Warning bypass switch shut off
Illustration 9 g00785216
Input isolation switch
Illustration 10 g00785218
Output isolation switch
Illustration 11 g02442139
MMU modules are connected in parallel. Voltage may be present at the output of this module when the input power has been removed.
Illustration 12 g02442496
MMU disconnect switch
Illustration 13 g02442560
MMU modules are connected in parallel. Deenergize input and output switches prior to servicing.
Illustration 14 g00785222
"On" symbol
Illustration 15 g00785223
"Off" symbol

Cat SIS web machinery list:

Caterpillar parts catalog
7251 MARINE TRANSMISSION 74E01246-UP
7241 MARINE TRANSMISSION 39E00001-UP
R2900G Load Haul Dump NLK00001-UP (MACHINE) POWERED BY C15 Engine
R3000H Load Haul Dump RCY00001-UP (MACHINE) POWERED BY C15 Engine
836K Landfill Compactor T6X00001-UP (MACHINE) POWERED BY C27 Engine
990K Wheel Loader L6Z00001-UP (MACHINE) POWERED BY C27 Engine
980M Wheel Loader WW300001-UP (MACHINE) POWERED BY C13 Engine
982M Wheel Loader WMD00001-UP (MACHINE) POWERED BY C13 Engine
824K Wheel Dozer 2T200001-UP (MACHINE) POWERED BY C15 Engine
824K Wheel Dozer 2L400001-UP (MACHINE) POWERED BY C15 Engine
986K Wheel Loader NL800001-UP (MACHINE) POWERED BY C15 Engine
826C Landfill Compactor 87X00587-UP (MACHINE)
825G Soil Compactor 6RN00001-UP (MACHINE) POWERED BY 3406 Engine
826G Landfill Compactor 7LN00001-UP (MACHINE) POWERED BY 3406 Engine
24H Motor Grader 7KK00001-UP (MACHINE) POWERED BY 3412E Engine
836 Landfill Compactor 7FR00264-UP (MACHINE) POWERED BY 3408E Engine
836G Landfill Compactor 7MZ00001-UP (MACHINE) POWERED BY 3456 Engine
550 Wheel Harvester 7ZN00001-UP (MACHINE) POWERED BY 3126 Engine
570 Wheel Harvester 4XR00001-UP (MACHINE) POWERED BY 3126 Engine
580 Wheel Harvester 7CN00001-UP (MACHINE) POWERED BY 3126 Engine
826G II LANDFILL COMPACTOR AYH00001-UP (MACHINE) POWERED BY 3406 Engine
825G II Soil Compactor AXB00001-UP (MACHINE) POWERED BY 3406 Engine
570B Harvester CKG00001-UP (MACHINE) POWERED BY 3126B Engine
580B Wheel Harvester CLT00001-UP (MACHINE) POWERED BY 3126B Engine
836G Landfill Compactor BRL00001-UP (MACHINE) POWERED BY 3456 Engine
550B WHEEL HARVESTER SAW00001-UP (MACHINE) POWERED BY 3056E Engine
560B WHEEL HARVESTER TRA00001-UP (MACHINE) POWERED BY 3056E Engine
R2900G Load Haul Dump JLK00001-UP (MACHINE) POWERED BY C15 Engine
836H Landfill Compactor BXD00001-UP (MACHINE) POWERED BY C18 Engine
825H Soil Compactor AZW00001-UP (MACHINE) POWERED BY C15 Engine
826H Landfill Compactor AWF00001-UP (MACHINE) POWERED BY C15 Engine
24M Motor Grader B9K00001-UP (MACHINE) POWERED BY C18 Engine
836K Landfill Compactor TWZ00001-UP (MACHINE) POWERED BY C18 Engine
836K Landfill Compactor LWZ00001-UP (MACHINE) POWERED BY C18 Engine
24M Motor Grader B9300001-UP (MACHINE) POWERED BY C18 Engine
825K Soil Compactor SEE00001-UP (MACHINE) POWERED BY C15 Engine
826K Landfill Compactor SET00001-UP (MACHINE) POWERED BY C15 Engine
825K Soil Compactor 23300001-UP (MACHINE) POWERED BY C15 Engine
826K Landfill Compactor 23200001-UP (MACHINE) POWERED BY C15 Engine
824K Soil Compactor 2T900001-UP (MACHINE) POWERED BY C15 Engine
825K Soil Compactor 2L900001-UP (MACHINE) POWERED BY C15 Engine
826K Landfill Compactor 2T600001-UP (MACHINE) POWERED BY C15 Engine
826K Landfill Compactor 2L300001-UP (MACHINE) POWERED BY C15 Engine
R2900 Load Haul Dump ZLK00001-UP (MACHINE) POWERED BY C15 Engine
980M Wheel Loader MK200001-UP (MACHINE) POWERED BY C13 Engine
982M Wheel Loader MK600001-UP (MACHINE) POWERED BY C13 Engine
980M Wheel Loader MGD00001-UP (MACHINE) POWERED BY C13 Engine
982M Wheel Loader LRS00001-UP (MACHINE) POWERED BY C13 Engine
986 Wheel Loader 98600001-UP (MACHINE) POWERED BY C15 Engine
AD55 Underground Articulated Truck GNW00001-UP (MACHINE) POWERED BY C18 Engine
986K Wheel Loader SWH00001-UP (MACHINE) POWERED BY C15 Engine
834K Wheel Dozer TW400001-UP (MACHINE) POWERED BY C18 Engine
834K Wheel Dozer L4Y00001-UP (MACHINE) POWERED BY C18 Engine
988K Wheel Loader T8E00001-UP (MACHINE) POWERED BY C18 Engine
988K Wheel Loader L8X00001-UP (MACHINE) POWERED BY C18 Engine
980M Wheel Loader XDJ00001-UP (MACHINE) POWERED BY C13 Engine
982M Wheel Loader XDL00001-UP (MACHINE) POWERED BY C13 Engine
988K XE Wheel Loader E8X00001-UP (MACHINE) POWERED BY C18 Engine
986K Wheel Loader MH800001-UP (MACHINE) POWERED BY C15 Engine
988K XE Wheel Loader EWX00001-UP (MACHINE) POWERED BY C18 Engine
980G 2Z-9623 Mill AR-Steel Custom Product Support Literature For 980G Wheel Loader 2KR00001-UP (MACHINE)
4Q-1733 Block Handling Conversion Ar Custom Product Support Literature for 980G Wheel Loaders 9CM00001-UP (MACHINE) POWERED BY 3406C Engine
4Q-1700 Compactor Ar-Loader Custom Product Support Literature for 980G Wheel Loader 9CM00001-UP (MACHINE) POWERED BY 3406C Engine
2Z-9623 Mill Ar-Steel Custom Product Support Literature for 980G Wheel Loader 9CM00001-UP (MACHINE) POWERED BY 3406C Engine
4Q-1795 Conversion Ar-Underground Mine Custom Product Support Literature for 980G Wheel Loader 9CM00001-UP (MACHINE)
Parking Brake Ar Custom Product Support Literature for 966G and 972G Wheel Loader 1EW00001-UP (MACHINE)
Custom Product Support Literature for the 988G Wheel Loader 2TW00001-UP (MACHINE)
2Q-8478 Steel Mill Arrangement Custom Product Support Literature for the 980G Series II Wheel Loader AWH00001-UP (MACHINE)
209-2241 Conversion Arrangement-Block Handling Custom Product Support Literature for the 980G Series II Wheel Loader AXG00001-UP (MACHINE)
2Q-8478 Steel Mill Arrangement Custom Product Support Literature for the 980G Series II Wheel Loader AXG00001-UP (MACHINE)
253-0542 CONVERSION AR-BLOCK HANDLING CUSTOM PRODUCT SUPPORT AXG00001-UP (MACHINE)
265-5049 BRAKE GP-PARKING (HEAVY DUTY) CUSTOM PRODUCT SUPPORT LITERATURE FOR THE 980H WHEEL LOADER JMS00001-UP (MACHINE)
CUSTOM PRODUCT SUPPORT LITERATURE FOR THE 988H WHEEL LOADER BXY00001-UP (MACHINE)
255-5162 MACHINE AR (UNDERGROUND MINE) CUSTOM PRODUCT SUPPORT LITERATURE FOR THE 980G SERIES II WHEEL LOADERS AXG00001-UP (MACHINE)
STEEL MILL AR FOR THE 980H WHEEL LOADER JMS00001-04999 (MACHINE)
980H WTL TT115V S/N PREFIX MHG, 284-4735 CONVERSION AR-BLOCK HANDLING CUSTOM PRODUCT SUPPORT LITERATURE FOR THE 980H MHG00001-UP (MACHINE)
284-2174 STEEL MILL AR FOR THE 980H WHEEL LOADER MHG00001-UP (MACHINE)
284-2174 STEEL MILL AR FOR THE 980H / TT115V / MHG WHEEL LOADERS MHG00001-UP (MACHINE)
332-4257 COUPLER V_WDG AR, 980H, TT115V, MHG MHG00001-UP (MACHINE)
332-4259 COUPLER V_WDG AR, 980H, TT115V, MHG MHG00001-UP (MACHINE)
329-6629 GUARD AR -TOP, 980H, TT115V, MHG MHG00001-UP (MACHINE)
331-9943 STEEL MILL AR CUSTOM PRODUCT SUPPORT LITERATURE FOR THE 980H WHEEL LOADERS JMS00001-UP (MACHINE)
331-9944 STEEL MILL AR CUSTOM PRODUCT SUPPORT LITERATURE FOR THE MHG00001-UP (MACHINE)
329-6626 BLOCK HANDLER AR, 980H, TT115V, MHG MHG00001-UP (MACHINE)
329-6624 Loader Ar - Logger Custom Product Support Literature for the 980H MHG00001-UP (MACHINE)
329-6624 LOADER AR-LOGGER CUSTOM PRODUCT SUPPORT LITERATURE FOR 980H WHEEL LOADER JMS00001-UP (MACHINE)
328-3305 Machine Arrangement Custom Product Information for UMA 980H Wheel Loader MHG00001-UP (MACHINE)
358–4288 Conversion Ar-12-Ton, 980H, TT115-, JMS JMS00001-UP (MACHINE)
988B Wheel Loader 50W06041-UP (MACHINE) POWERED BY 3408 Engine
980C Wheel Loader 63X06575-UP (MACHINE) POWERED BY 3406 Engine
980F Wheel Loader 8CJ00001-UP (MACHINE) POWERED BY 3406 Engine
988F Wheel Loader 8YG00001-UP (MACHINE) POWERED BY 3408 Engine
621E Wheel Tractor-Scraper 6AB01428-UP (MACHINE) POWERED BY 3406 Engine
621F Wheel Tractor Scraper 4SK00001-UP (MACHINE) POWERED BY 3406 Engine
621F Wheel Tractor-Scraper 8PL00001-UP (MACHINE) POWERED BY 3406C Engine
980G Wheel Loader 2KR00001-UP (MACHINE) POWERED BY 3406C Engine
980G Wheel Loader 9CM00001-UP (MACHINE) POWERED BY 3406C Engine
824G Wheel Tractor 4SN00001-UP (MACHINE) POWERED BY 3406C Engine
834B Wheel Tractor 7BR00001-UP (MACHINE) POWERED BY 3408E Engine
988F Series II Wheel Loader 2ZR00001-UP (MACHINE) POWERED BY 3408E Engine
988G Wheel Loader 2TW00001-UP (MACHINE) POWERED BY 3456 Engine
834G Wheel Tractor 6GZ00001-UP (MACHINE) POWERED BY 3456 Engine
623F Wheel Tractor-Scraper 3XW00001-UP (MACHINE) POWERED BY 3406C Engine
621G WHEEL SCRAPER ANG00001-UP (MACHINE)
623G WHEEL SCRAPER AWB00001-UP (MACHINE)
980G II Wheel Loader AWH00001-UP (MACHINE) POWERED BY 3406 Engine
824G II Wheel Tractor AWW00001-UP (MACHINE) POWERED BY 3406 Engine
988G Wheel Loader BNH00001-UP (MACHINE) POWERED BY 3456 Engine
834G Wheel Tractor BPC00001-UP (MACHINE) POWERED BY 3456 Engine
980G II Wheel Loader AXG00001-UP (MACHINE) POWERED BY 3406E Engine
621G Wheel Scraper CEP00001-UP (MACHINE)
623G Wheel Scraper CEW00001-UP (MACHINE)
AD55 Underground Articulated Truck DNW00001-UP (MACHINE) POWERED BY C18 Engine
AD45B Underground Articulated Truck CXM00001-UP (MACHINE) POWERED BY C18 Engine
AD30 Underground Articulated Truck DXR00001-UP (MACHINE) POWERED BY C15 Engine
834H Wheel Dozer BTX00001-UP (MACHINE) POWERED BY C18 Engine
988H Wheel Loader BXY00001-UP (MACHINE) POWERED BY C18 Engine
824H Wheel Dozer ASX00001-UP (MACHINE) POWERED BY C15 Engine
980H Wheel Loader JMS00001-UP (MACHINE) POWERED BY C15 Engine
621G Wheel Tractor DBB00001-UP (MACHINE) POWERED BY C15 Engine
621G Wheel Scraper DBX00001-UP (MACHINE)
623G Wheel Scraper DBY00001-UP (MACHINE)
980H Wheel Loader MHG00001-UP (MACHINE) POWERED BY C-15 Engine
621H Wheel Tractor Scraper DBK00001-UP (MACHINE) POWERED BY C13 Engine
623H Wheel Tractor Scraper DBF00001-UP (MACHINE) POWERED BY C13 Engine
621G Scraper (US Military) KLK00001-UP (MACHINE)
AD55B Underground Articulated Truck JNW00001-UP (MACHINE) POWERED BY C27 Engine


Parts seal Caterpillar catalog:

1672219 SEAL AS-BUFFER
834G, 834H, TK1051
5P5520 SEAL-LIP TYPE (168.43MM OD)
824G, 824G II, 824H, 826G, 826G II, 826H, 844, 844H, 844K, D8L, D9N, D9R
2D1521 SEAL
12E, D8H, D8K
3P2778 SEAL
D7G, D8H, D8K
4J9964 SEAL
120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 120M, 120M 2, 12E, 12G, 12H, 12H ES, 12H NA, 12K, 12M, 12M 2, 12M 3, 12M 3 AWD, 130G, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 140M ...
8J2330 SEAL
120G, 120H, 120H ES, 120H NA, 12E, 12G, 12H, 12H ES, 12H NA, 130G, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 143H, 14G, 14H NA, 160H, 160H ES, 160H NA, 163H NA, 16G, 16H NA, 24H
1731007 SEAL
120H, 120H ES, 120H NA, 120K, 120K 2, 120M, 120M 2, 12H, 12H ES, 12H NA, 12K, 12M, 12M 2, 12M 3, 12M 3 AWD, 135H, 135H NA, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 140M 2, 140M 3, 140M 3 AWD, 143H,...
1010509 SEAL-INTEGRAL
120H, 120H ES, 120H NA, 120K, 120K 2, 12H, 12H ES, 12H NA, 12K, 135H, 135H NA, 140H, 140H ES, 140H NA, 140K, 140K 2, 143H, 14H, 14H NA, 160H, 160H ES, 160H NA, 160K, 163H, 163H NA, 16H, 16H NA, 24H
7L2197 SEAL OUTPUT FLANGE RETAINER
950G, 950G II, 962G, 962G II, D346, D348, D353C, IT62G, IT62G II
3L3314 SEAL OUTPUT FLANGE
16, D346, D348, D353C, D375D
4N2786 SEAL
120G, 12G, 130G, 140B, 14G, 1673C, 215, 225, 235, 3208, 3304, 3306, 518, 613B, 627B, 637D, 772, 941, 950, 955L, D4D, D4E, D5, D5B, D6C, D6D
7S3206 SEAL CHAMBER ASSEMBLY
120B, 12G, 130G, 140B, 14G, 16, 1673C, 1693, 225, 3304, 3306, 528, 561C, 621R, 627, 631C, 633D, 637D, 641, 651, 657, 657B, 666, 768B, 769, 824B, 825B, 826B, 834, 920, 930, 941, 950, 951B, 955K, 966C, ...
8F6498 SEAL
583T, 587R, 587T, 69D, 7261, 7271, AD40, AD45, AD55, AE40, AE40 II
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