Technical Specification: Standard (STD) size for 86mm (3.38 inch) bore engines. Includes a complete 3-ring set for one piston: 1.75mm Compression Top 2.0mm Compression Middle and 4.0mm Oil Control ring.
Engine Compatibility: Specifically designed for Lister Petter and Onan Alpha Series water-cooled engines including models LPW2 LPW3 LPW4 LPWS2 LPWS3 LPWS4 and LPWT.
Exact OEM Match: Direct replacement for part numbers 750-13120 and 750-11401. Also compatible with Onan engine models DN2M DN3M and DN4M.
Durable Construction: Manufactured from high-strength cast iron to meet original equipment standards for heat resistance compression sealing and oil consumption control.
Application Use: Essential for engine rebuilds and overhauls in Ditch Witch equipment portable generators military power units and marine propulsion engines.
Related Products
Our Guarantee
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.






























