Direct Engine Fitment: Engineered for Lister Petter and Onan Alpha Series engines including LPW2 LPW3 LPW4 LPWT4 LPWS2 LPWS3 and LPWS4. Also compatible with DN2M DN3M and DN4M models.
Exact Equipment Match: Reliable replacement for water cooled engines found in Ditch Witch 400SX 410SX plows JT820L JT920L directional drills and Onan GNAA GNAB GNAC generators.
OEM Cross Reference: Swaps directly with part numbers 750-40627 750-41022 751-41022 and 750-40621. Designed to original dimensions for a precise 3-bolt type installation.
Complete Assembly: Heavy duty aluminum construction designed to provide consistent cooling flow and prevent engine overheating under high workloads.
Installation Ready: Package includes the required mounting gasket as shown in the product photos to ensure a leak-free seal and immediate installation.
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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.

















