Upgrade your engine’s performance with our high-quality Cummins Connecting Rod Bearing Set STD. Specifically designed for 3.9L engines including models 4BT and 4B, this bearing set ensures reliability and durability. Featuring OEM Part numbers 3901170 and 3969562, it perfectly fits your vehicle’s requirements. The package includes 1 set of Connecting Rod bearings, providing everything you need for an efficient rebuild or maintenance. Trust Tractor, your leading supplier of aftermarket tractor and skid steer parts, for components that exceed expectations and keep you moving forward.
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At Arko Tractor Parts, we specialize in high-performance aftermarket tractor and diesel components engineered to meet the demands of heavy-duty operations
Return Policy
If you're not satisfied with your purchase, our return policy allows for easy returns within 30 days. Please review our guidelines for a hassle-free process.
Shipping Info
We provide free shipping and typically arrives within 3-8 business days.
Customer Support
Our dedicated support team is here to assist you with any inquiries. Reach out via phone or email for prompt assistance with your orders.
Phone: 818-261-3896
Email: sales@arkotractorpart.com
Hear What Our Customers Are Saying
Trusted by Thousands: 51,000+ Verified 5-Star Reviews

Gary Dibble
Texas, USA
Was shipped in factory package . Arrived in good condition though. Fast Shipping and exactly what I ordered according to number on package.

Larry Cochran
California, USA
Great service and quick shipping. Just what I needed. Thank you I will be ordering from this company again.

James Stanfill
Texas, USA
Fast processing, fast shipping, price very good, part works flawlessly, will do business with again.

















