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New 1D4720 Nut Replacement suitable for Caterpillar Equipment
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Description for 1D4720 Hex Nut
â–¶Specification for 1D4720 Hex Nut
â–¶Exact Fit Guarantee for 1D4720 Hex Nut
â–¶Reviews
Customer Reviews
Have been buying parts from them for years, and they have always delivered, both with parts and customer service.
Grateful I found this company!
I’m grateful I found this company! They answer the phone every time plus the parts are packaged very well!! Even the angriest mailman couldn’t damage your parts! lol The parts showed up as planned and for being aftermarket the quality seems to be good!! The warranty is the same as CAT. Thank you Daniel!!!
Everything fine, thank you. The only thing with which I had a problem in your Software, is that when I have more than 10 different items on the list, I can't scroll to the first ones. But besides that, I am very happy in going on with buying your parts.
Original Review (Portuguese)
Muito bom atendimento
Ótima empresa
English Translation
Very good service.
Excellent company.
helpful and professional.
quick and professional service.
Quick Respond.
The quick respond much appreciated.
Keep this up.
Propel Parts provided quality parts for my Caterpillar needs at a very fair price. Shipping to my international location was very fast. took about a week for the parts to get here. Seller is also responsive with my inquiry.
Thanks again
Quick and efficient.
Great products and a great team to deal with. We had a small issue with a missing part and the Customer Services Team dealt with it quickly and efficiently and in a way which left me, the customer, feeling entirely satisfied. Would highly recommend.
Excellent customer service and parts.
You guys have always gave excellent customer service!!! Very prompt responsiveness. Warranty services are superb. I have been using them for quite awhile now on equipment I have. Always great prices for parts! Keep up the great work guy's
Great customer service answered email question quickly.
Product Questions
Frequently Asked Questions
What is the Caterpillar Nut 1D4720 used for?
The 1D4720 is a heavy-duty threaded nut used across various Caterpillar equipment assembly points. Nuts in heavy equipment applications are subject to extreme vibration, heat, and torque loads. The 1D4720 is engineered to maintain clamping force in these demanding conditions and serve as a secure fastening element in critical joints.
What thread size and grade is the 1D4720 nut?
For exact thread specifications ??? including thread pitch, size, and grade ??? refer to the product listing or your Caterpillar parts or service manual. Using a correctly graded nut is essential in high-load applications to prevent fastener failure under stress. If you need help identifying the correct specification, contact Propel Parts.
Is this a premium aftermarket nut?
Yes. The 1D4720 nut from Propel Parts is a high-quality aftermarket fastener that meets or exceeds OEM specifications for thread accuracy, material strength, and surface treatment. It is a direct dimensional replacement for the original Caterpillar nut.
Can I reuse nuts on Caterpillar equipment, or should they always be replaced?
Standard nuts in good condition with undamaged threads can often be reused. However, prevailing-torque or locking nuts that deform on installation are designed for single use and should always be replaced. In critical torque applications such as wheel hubs, final drives, and cylinder heads, always consult your service manual for reuse guidance.
What torque should I use when installing the 1D4720 nut?
Always apply the torque value specified in your Caterpillar service manual for the particular joint. Do not estimate ??? using incorrect torque on heavy equipment fasteners can lead to joint failure, stripped threads, or component damage. A calibrated torque wrench is essential for critical fastener applications.
What is the best practice for preventing nuts from loosening on heavy equipment?
Use the correct torque to achieve proper clamp load, use locking nuts or thread-locking compound where specified, inspect fasteners at regular service intervals, replace any fastener showing signs of corrosion or thread damage, and ensure mating surfaces are clean and flat before assembly.
Where can I find more Caterpillar hardware fasteners?
Propel Parts stocks a comprehensive range of hardware components for Caterpillar equipment. Visit the heavy equipment hardware parts category to find matching bolts, studs, washers, pins, and other fasteners to complete your repair or rebuild.
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.
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