WMI Pump Upper Housing Upgrade (4AN)

Convert your pump to work with 3/8 fittings and enjoy convenient expansion possibilities plus superior intake flow capacity. This part fits water/meth pumps from all vendors using Aquatec pumps with seven screw attachment points. Pressure adjustments will be required using a 1/16" Allen key. Do that with our famous Tuner's Pressure Gauge.

WMI pump housing + pressure set screw Snow pump housing SNO-40900UHA

Once converted to a 3/8" threaded top, USRT's high-performance plumbing solutions may be installed. See the Pump Filtered Outlet, for example:

Water/meth pump filtered outlet 4AN
Satisfy your beast with a DEEP THIRST Inlet, too. This is done in 6AN for zero intake restriction:

Water/methanol pump 6AN inlet


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  • Model: WAIPMPHEAD4
  • Manufactured by: US Rally Team

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  • Hainesport, NJ 08036
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