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8T4123 Washer Replacement suitable for Caterpillar Equipment
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Description for 8T4123 Washer
â–¶Specification for 8T4123 Washer
â–¶Exact Fit Guarantee for 8T4123 Washer
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Customer Reviews
I almost want to cry ;( writing this review because I dont want people to find out about them and rather keep them in my pocket but they deserve it…
This company is great with Quality Products at amazing prices! Sometimes, their website is not the most accurate but is user friendly and if you got questions they will call back and are very prompt in responding via a call or text to verify inventory before placing an order.
I really appreciate and look forward to continuing to work with you all especially Anthony — he is amazing & the best!!!
La mejor experiencia y calidad
He was a great help with ordering and refunding the sales tax,
Excelente servicio rapido, responsable y confiable
I would give 5 stars but my first time ordering from here and using aftermarket parts. The price is reasonable comparing to original Cat parts and the customer support is great and hoping to do more business with them
Great people! Good and fast service. Always looking to help get what you need! 10/10 ????????
Excellent service and quick response!
Rapid response! Excellent service!
Great Customer Service!
Had some difficulties with the website. Contacted customer service. Once I communicated the issues I was having Steven worked through getting my order processed and making sure I got my receipt and all issues resolved. Perfect!
Had a great experience with ordering correct engine gaskets for our 3208 caterpillar engine
Product Questions
Frequently Asked Questions
What is the Caterpillar 8T4123 washer used for?
A: The 8T4123 washer distributes the clamping load of a bolt or nut across a larger surface area in Caterpillar equipment assemblies. It protects mating surfaces from damage and helps maintain proper joint tension over time.
What material is the 8T4123 washer made from?
A: This washer is manufactured from high-strength steel, designed to resist deformation under the loads typical in heavy equipment applications. It meets or exceeds OEM specifications for hardness and dimensions.
Is this washer a direct replacement for the original?
A: Yes. This is a high-quality aftermarket washer engineered to match the original Caterpillar 8T4123 in all critical dimensions and material properties, making it a reliable direct replacement.
Which Caterpillar equipment uses the 8T4123 washer?
A: This washer is used across a variety of Caterpillar models and assemblies. Check your parts manual or reach out to Propel Parts for help verifying fitment for your specific machine.
Browse our dedicated category of washers and hardware to find compatible washers for all your CAT maintenance needs.
Should washers be replaced during routine maintenance?
A: Yes. Washers should be replaced whenever they show visible wear, deformation, or corrosion, or when performing a major disassembly. Using fresh, high-quality washers during reassembly ensures proper clamping force distribution.
What is the correct installation procedure for this washer?
A: Place the washer against the surface being fastened, then install the bolt or nut. Ensure the washer is oriented correctly (flat side against the surface) and torque the fastener to the value specified in your Caterpillar service manual.
Does this washer come with a warranty?
A: All Propel Parts products include a 12-month warranty from the invoice date, covering manufacturing and material defects. Same-day shipping is available for weekday orders by 3pm ET.
Compatible Models
This 8T4123 Washer is compatible with the following models:
D6N, D6N LGP & more...
Shipping | Returns
Shipping
We know equipment downtime costs money, so fast and reliable shipping is a priority at Propel Parts. Orders placed on weekdays before 3:00 PM ET typically ship the same day, with expedited delivery options available for many locations when time is critical.
We ship across the U.S., Canada, and over 130 countries worldwide, helping customers keep machines running wherever they operate. Available shipping methods and delivery estimates are shown at checkout so you can select the option that best fits your timeline.
Tracking information is emailed within 24–48 hours after your order is processed, giving you full visibility from dispatch to delivery and peace of mind that your parts are on the way.
Easy Returns
Our refund policy is simple. We offer a 30-day, no-hassle return policy, and we make every effort to provide the best service and highest-quality parts possible. If you’re not fully satisfied with your purchase, you may return it within 30 days for a refund. Full details are available on our Returns Policy page.
Warranty
Buy with confidence. All parts from Propel Parts are covered against material or manufacturer defects for 12 months from the original invoice date. We stand behind every part we sell, so you can count on reliable performance and dependable support. Full details are available on our Warranty Policy page.
Exact Fit Guarantee
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