D8N - Serial Number Prefix 5TJ: After Serial Number 5TJ00001
D8N - Serial Number Prefix 7TK: After Serial Number 7TK00001
D8R - Serial Number Prefix DWJ: After Serial Number DWJ00001
D8R - Serial Number Prefix 7XM: After Serial Number 7XM00001
D8R - Serial Number Prefix 9EM: After Serial Number 9EM00001
D8R - Serial Number Prefix AKA: After Serial Number AKA00001
D8R - Serial Number Prefix RJM: After Serial Number RJM00001
D8R - Serial Number Prefix T5X: After Serial Number T5X00001
D8R - Serial Number Prefix MEJ: After Serial Number MEJ00001
D8R II - Serial Number Prefix 6YZ: After Serial Number 6YZ00001
D8T - Serial Number Prefix JJ5: After Serial Number JJ500001
D8T - Serial Number Prefix AW4: After Serial Number AW400001
D8T - Serial Number Prefix KPZ: After Serial Number KPZ00001
D8T - Serial Number Prefix J8B: After Serial Number J8B00001
D8T - Serial Number Prefix MLN: After Serial Number MLN00001
D8T - Serial Number Prefix FCT: After Serial Number FCT00001
D8T - Serial Number Prefix FMC: After Serial Number FMC00001
Key Notes
Part Number: 1046374
Weight: 76.2 lbs
Type: Track Adjuster Piston
Serial Number Note: Serial number breaks apply - verify your machine serial number before ordering
Application: Replacement track adjuster piston for Caterpillar D8N, D8R, D8R II and other dozers
Condition: Aftermarket replacement part
Why Choose Broken Tractor
✅ Correct OEM Dimensions: Made to the original measurements for a proper fit.
✅ Easy Returns: Our 30-day return policy gives you confidence ordering the right part the first time.
✅ Ships Quick from U.S. Warehouses: Real people pull, pack, and ship your order fast.
$490.00/ea
Shipping calculated at checkout. If any item in your order is temporarily unavailable, we'll contact you to arrange a back-order or refund — whichever you prefer.
Can’t Find What You’re Looking For?
Our knowledgeable staff will be happy to help you with any of your tractor, backhoe, dozer, or engine parts needs.
Do you need your part quickly? You're in luck! We have warehouses all over the country to ensure a quick and easy delivery time. Most of our parts ship from our warehouses the same day you place your order. And many times, orders are delivered in Two to Three days.
Our in house parts are manufactured following strict quality standards in our warehouse in Ohio. Parts such as hydraulic cylinders, pins, bushings, sheet metal, track adjusters, booms and dipper sticks are all ready to ship same day that they are purchased! With less time to wait for your shipment, you will be able to get back to work as quickly as possible.
Did you accidentally purchase the incorrect part? We offer returns and exchanges here at Broken Tractor. To proceed with a return, please fill out our form, and we will provide you with return authorization and a step by step return process for your convenience. We are more than happy to help you exchange your part for the correct one! fill out our form to make a request here at Return Request Form and we would be pleased to help you.