Alcohol injection pump was getting power but not pumping so I called Uncle Lou (who installed the system), who had me contact the system builder Steve at SMC. I asked for a rebuild kit in hopes I could repair the pump. Steve had me ship the unit to him, he repaired it and shipped it back to me in a few days, all free ! Took me about 20 minutes to re-install it and works like new. Great guy, great service. If he sells it & I need it, would not hesitate to purchase from SMC.