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BackHomeGround Engaging ToolsGround Engaging Tool Hardware & RetentionGround Engaging Tool Washers8T-4224: M8 ID Steel Flat Washer
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Ground Engaging ToolsGround Engaging Tool Hardware & RetentionGround Engaging Tool Washers
8T-4224: M8 ID Steel Flat Washer
8T-4224: M8 ID Steel Flat Washer
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8T-4224: M8 ID Steel Flat Washer
8T-4224: M8 ID Steel Flat Washer
8T-4224: M8 ID Steel Flat Washer
8T-4224: M8 ID Steel Flat Washer

Cat® Hard Washer is a rigid flat disc used to evenly distribute load and prevent surface damage in fastening

Brand: Cat

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Warranty Information
Warranty Information

Generally, warranty for parts purchased on Parts.Cat.Com is 12 months from the invoice date as defined in the Caterpillar Limited Warranty. Parts Warranty covers defects in material and workmanship throughout the Warranty period once it has been installed. For complete Warranty detail contact your local Cat Dealer.

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Return Policy
Return Policy Information
Unless otherwise noted by a non-returnable part
icon, most parts can be returned to your authorized Cat® dealer under their return policy.

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Warranty Information
Warranty Information

Generally, warranty for parts purchased on Parts.Cat.Com is 12 months from the invoice date as defined in the Caterpillar Limited Warranty. Parts Warranty covers defects in material and workmanship throughout the Warranty period once it has been installed. For complete Warranty detail contact your local Cat Dealer.

Need More Help? Contact Us

Find a DealerEmail
Return Policy
Return Policy Information
Unless otherwise noted by a non-returnable part
icon, most parts can be returned to your authorized Cat® dealer under their return policy.

Need More Help? Contact Us

Find a DealerEmail
Parts diagram for 8T-4224
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Description for part number 8T-4224

Cat bolts and matching hardened washers and nuts form a matched system which produces consistently high clamp loads.

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Warning:This product can expose you to chemicals including Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Specifications for part number 8T-4224

Units of Measure

USMetric

Material: Alloy Zinc,HARDENED STEEL,Low Alloy Steel

Washer Type: Flat

Fits Bolt Sizes (in): 5/16

Fits Bolt Sizes (mm): M8

Material Description: Hardened Steel

Coating: Zinc Flake-Black

Inner Diameter (in): 0.346

Inner Diameter (mm): 8.8

Outer Diameter (in): 0.63

Outer Diameter (mm): 16

Thickness (in): 0.079

Thickness (mm): 2

Thickness - 3 (mm): 2

Inside Diameter (mm): 8.8

Hardened: Yes

Inside Diameter (in): 0.346

Outside Diameter (in): 0.63

Outside Diameter (mm): 16

Outside Diameter (OD) - 2 (mm): 16

Finish Notes: Caterpillar is changing from Zinc Plating to a Zinc Flake finish for many washers. The new coating improves corrosion protection to 720 hours. Until stock of the current finish is depleted, you may receive either finish due to the exhaust process.

Inside Diameter (ID) - 1 (mm): 8.8

Finish: Zinc Flake

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Compatible Models for part number 8T-4224

GENERATOR

SR4 SR4BHV

TRUCK ENGINE

C-10 C-15 3176 3408B 3126B 3408 3306 1673C 3208 3406C 3406B 3176B 3116 C15 3306C 3306B

INTEGRATED TOOLCARRIER

IT18B IT12B IT14G IT28G IT28F IT28B

WHEEL SKIDDER

525 518

TRACK FELLER BUNCHER

TK751 1190 1390 1190T 1090

RENEWABLE ENERGY

PGS1260 HD

EXCAVATOR

320-A L 323F SA 320-A N 321B 350-A L 350 L 225 M325D MH 235 320-A 215 320N 375-A 245 245B M312 M315 M318 320 L M325D L MH

MULTI TERRAIN LOADER

257B 247B

COMPACT TRACK LOADER

259D

WHEEL TRACTOR

631E 621E

HYDRAULIC CONTROL

48

TRACK LOADER

963 973 943 953 953C

PETROLEUM ENGINE

C15

BACKHOE LOADER

438C 426B 426C 438D 438B 416 424D 426 436C 428 424B 446B 420D 432D 420F 442D 430D 430F 438 436 416C 428D 416D 428B 416B 428C

LANDFILL COMPACTOR

836

AG TRANSMISSION

TA22-M4WD

COMPACT WHEEL LOADER

908 910F 910E 914G

WHEEL LOADER

928G 960F 972G 972H 928HZ 950G 950F 962G G926 916 G916 926 936 966H 966G 930H 982 XE 930R 930T 980 XE 924GZ 924HZ 936E 924G 980C 980F 980H 928F 938G 926E 970F 950F II

TELEHANDLER

RT80 TH337C TH82 TH83 TH103 TH336C TH407C RT100 TH62 TH63 TH350B TH414C TH406C TH255C TH514C TH417C

SOIL STABILIZER

SS-250

ARTICULATED TRUCK

D30C D30D D35C D300B D250B D25D D25C D350C D300E II

GRAPPLE-LOG LOADING

GLL55 GLL52 GLL60

WHEELED EXCAVATOR

M318C M322C M318C MH M315C M316C M313C

ENGINE - INDUSTRIAL

3406B 3406C

PNEUMATIC COMPACTOR

PS-180 PF-300B PS-300B PS-130

INDUSTRIAL ENGINE

3406C 3408C 3304 3306 3412 D333C 3406 3512 3516 3508 D330C

QUARRY TRUCK

771D

WHEEL SCRAPER

631E 621E 657B 623F 623E 637E 657

ASPHALT SCREED

AS3251C AS2252C 8 FT AS4252C 10B

GAS ENGINE

G3306 G3616 G3608 G3606

TRACTOR

776 768C

BULLDOZER

7SU 7S LGP 824S 8S 834U 834S 6S 7S 8A 3S 3P

PUMPER

SCT673 SPS342 CPT372 SPT343 SPT342

UNDERGROUND ART TRUCK

AE40 AD45B AD55 AD30 AE40 II AD45 AD40

FELLING HEAD

HF221 HF201 HF181

POWER MODULE

PM3456

MARINE PRODUCTS

3512B

LOAD HAUL DUMP

R1600 R1700G R2900 R1700 II R2900G

MOTOR GRADER

120H 120G 140G 130G 14G 12G 160G

BACKHOE

D3 931

TRACK-TYPE TRACTOR

D3B D4G D4H D4E D5H D6D D7G2 D6E D6H D7G D7H D6 D5 D6G2 XL D4E SR

ASPHALT PAVER

AP-200

MARINE AUXILIARY

3608

MARINE ENGINE

3516 3512 C12.9 3508 3616 3612 D330C 3056 3408B 3406B C280-16 C175-16 3208 D333C 3304 3306 3304B 3412 C280-6 C280-8 3408

PIPELAYER

561D 572G

STABILIZER MIXER

SM-350

VIBRATORY COMPACTOR

CS-323 CS-563 CP-563 CP-323 CB-434B CB-314 CB-434 CB-614

GENERATOR SET

C32

RECLAIMER MIXER

RM-350

COLD PLANER

PR-1000 PR-1000C PM-565

ROAD RECLAIMER

RR-250

ENGINE - MACHINE

3116 3208 C9

CHALLENGER

55 70C 65 65C 65B 65D 75C 85C 35 45

GEN SET ENGINE

3406C 3406B 3408B 3408C 3608 3606 3304B 3306 3304 3412 3208 3412C 3508 C280-16 3616 3408 3512 3516

ROTARY/TRACK DRILLS

MD6640 MD6540

SKID STEER LOADER

226B 216B 236 248 246 252B 216 242B 228 226 232B 236B

TRUCK

69D 773D 794 AC 793F OEM 775D 769D

WHEEL FELLER BUNCHER

533

SNOW BLOWER

SR318 SR18 SR121 SR117 SR118

ACCESS PLATFORM

THP24S II

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Compare Alternate Parts
8T-4224
This part:
8T-4224: M8 ID Steel Flat Washer
Fits Bolt Sizes (in)

5/16

Inner Diameter (in)

0.346

Outer Diameter (in)

0.63

Description

Cat® Hard Washer is a rigid flat disc used to evenly distribute load and prevent surface damage in fastening

606-0849
This part:
606-0849: Washer Kit - Small Sizes
Fits Bolt Sizes (in)

5/16, 3/8, 1/2

Description

Washer Kit: 6 Sizes, 6 Assorted Thicknesses, 9 Part Numbers, 150 Pieces, Hard Washers, Zinc Flake Coating

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KeyKey
Factory Fit

This part is designed to fit your Cat equipment based on the manufacturer’s specifications.

Any changes to the manufacturer’s configuration might result in the product not fitting your Cat equipment. Please consult your Cat Dealer before purchasing to ensure that this part is appropriate for your Cat equipment in its current condition and assumed configuration. This indicator cannot guarantee compatibility for all parts.

Remanufactured

Non-Returnable

Kit

Replaced

Remanufactured

Non-Returnable

Kit

Replaced

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