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.
Washer Kit: 7 Sizes, 7 Assorted Thicknesses, 10 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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Parts diagram for 8T-4123
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Description for part number 8T-4123
Description: Hardened washers, such as part # 8T-4123, are recommended for use in critical joints to provide a controlled assembly surface and to lower contact stress generated by the fastener to a level the abutment material can support.
Cat fastener parts are designed for specific applications based on size, strength, clamp load, and past performance. This is information other manufacturers do not have. They are selected to last until rebuild or the life of the machine. While it may seem as though non-Cat hardware and fasteners are suitable for your machine, no other company knows your equipment like we do.
Attributes: • Hardened steel • Coating: Zinc Flake • Inner Diameter: 22 mm (0.87 in) • Outer Diameter: 35 mm (1.38 in) • Thickness: 3.5 mm (0.14 in) • Fits M10 or 3/8 inch bolts
Application: Cat bolts and the matching hardened washers and nuts form a performance based system which produces consistently high clamp loads. You can trust Cat Fasteners to help you build it, maintain it, or fix it - for most machine and workshop applications throughout the world.
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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.
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): 22
Finish: Zinc Flake
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Compatible Models for part number 8T-4123
INTEGRATED TOOLCARRIER
IT12B IT14G IT28G IT28F
WHEEL TRACTOR-SCRAPER
651
CRUSHER
CR28 CR35
WHEEL SKIDDER
525
MINI HYD EXCAVATOR
307-A
TRACK FELLER BUNCHER
TK751 1190 1390 1190T 1090
HARVESTER HEAD
HH45 HH55 HH65 HH75
PULVERIZER
P40 P25 P28
EXCAVATOR
320-A L 323F SA 320-A N 312C 315D L 311C 321B 307 311-A 312C L 350-A L 320D FM 307-A 350 L 320E RR M325D MH 320 320-A 320N 320D 375-A 316E L M312 M315 M318 320 L M325D L MH
Description: Hardened washers, such as part # 8T-4123, are recommended for use in critical joints to provide a controlled assembly surface and to lower contact stress generated by the fastener to a level the abutment material can support.
Cat fastener parts are designed for specific applications based on size, strength, clamp load, and past performance. This is information other manufacturers do not have. They are selected to last until rebuild or the life of the machine. While it may seem as though non-Cat hardware and fasteners are suitable for your machine, no other company knows your equipment like we do.
Attributes: • Hardened steel • Coating: Zinc Flake • Inner Diameter: 22 mm (0.87 in) • Outer Diameter: 35 mm (1.38 in) • Thickness: 3.5 mm (0.14 in) • Fits M10 or 3/8 inch bolts
Application: Cat bolts and the matching hardened washers and nuts form a performance based system which produces consistently high clamp loads. You can trust Cat Fasteners to help you build it, maintain it, or fix it - for most machine and workshop applications throughout the world.
View More
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.
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): 22
Finish: Zinc Flake
View More
Compatible Models for part number 8T-4123
INTEGRATED TOOLCARRIER
IT12B IT14G IT28G IT28F
WHEEL TRACTOR-SCRAPER
651
CRUSHER
CR28 CR35
WHEEL SKIDDER
525
MINI HYD EXCAVATOR
307-A
TRACK FELLER BUNCHER
TK751 1190 1390 1190T 1090
HARVESTER HEAD
HH45 HH55 HH65 HH75
PULVERIZER
P40 P25 P28
EXCAVATOR
320-A L 323F SA 320-A N 312C 315D L 311C 321B 307 311-A 312C L 350-A L 320D FM 307-A 350 L 320E RR M325D MH 320 320-A 320N 320D 375-A 316E L M312 M315 M318 320 L M325D L MH
