I hope this helps ,a copy of my email.
We appreciate your contacting NorthernTool.com.
Regarding the hydraulic pump with 29 GPM.
This pump will require a 12 HP or larger direct drive horizontal shaft engine.
Item number 3031 is the 4 bolt pump mounting bracket that is 3 5/" bolt circle and 5 5/8" long. This is usually is for up to a 10 HP engine only.
We do offer mounting brackets for the 12 HP engines depending on the engine used.
When placing your order online, where the order form asks for a rep number, please input 259.
Ask about our new and improved Hotline members catalogs to learn how you can get lower prices and free shipping. http:/www.northerntool.com/hotline/
Please let me know if we can be of further assistance.
Thank you!!!
Irene
Representative #259
www.NorthernTool.com
Sales Specialist
Northern Tool + Equipment
1.800.221.0516 Ext. 8059
*Please include previous correspondence for immediate assistance