Hastings 2M139040 Moly Piston Rings Set
Hastings 2M139040 Moly Piston Rings Set
Hastings 2M139040 Moly Piston Rings Set
Hastings 2M139040 Moly Piston Rings Set

Hastings 2M139040 Moly Piston Rings Set

$66.26 In Stock Sold out
CODE: HAS2M139040




  • Description
  • Shipping and Refund
  • Reviews

Race winning technology that's guaranteed to deliver top performance in today's most extreme engines. Improved oil control. Reduced engine friction and wear. Excellent heat transfer. Superior combustion control. Nearly 100 years of manufacturing experience ensures the right of design for every engine application with "Motor-Engineered" rings.


  • Hastings Moly Piston Rings.Buy now and get same day shipping!
  • Bore size: 4.040"
  • Top ring: 5/64" Moly
  • Second ring: 5/64" Cast
  • Oil ring: 3/16" Stainless


  • We do our best to ship most items same or next day.
  • For all products, free fast delivery of the UPS is already included in the price.


  • +40 Chevy 350
  • For +.040 Chevy 350s. Also works for 302, 327, and 383


  • .200 deep oil ring, if replacing rings on factory type 350/5.7L pistons '86-'00 years may differ from specs above.

Shipping is Free 🙂



Shipping and Delivery Times


  • All in-stock products are shipped within one business day. Delivery usually takes 2-5 business days. We have a large number of warehouses in different states which allows us to deliver the orders very fast.





  • Most products are shipped via UPS Ground, FedEx depending on size with some large items shipped by SAIA or others.
  • Once your order ships, tracking details will be emailed to you.



Where’s my order?


  • Good question, when tracking details have been provided that means your order has been processed and shipped. Tracking details usually appear in the shipper’s database within one business day, i.e. UPS and FedEx generally provide point-in-time tracking meaning your order location is updated as it is scans and gets closer to you.  Most orders should arrive within 2-5 business days. Still have an issue with delivery, please contact us to see how we can help.





  • Cancellations are free. Please contact us ASAP if you need to cancel your order.

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