Meziere LS Extreme Heavy Duty Electric Water Pump 300 Series - WP333

$1,815.00

Meziere LS Extreme Heavy Duty Electric Water Pump 300 Series - WP333

Name: Meziere LS Extreme Heavy Duty Electric Water Pump 300 Series - WP333
Brand: Meziere Enterprises
SKU: MZ-WP333S
Price: 1815.00 AUD
Availability: InStock

Meziere Enterprises

$1,815.00

We bring you the solution for LS based, extreme duty engine cooling. The new 55 GPM pump is a great solution for high compression, high horsepower applications where superchargers, turbos or nitrous systems are employed. These pumps are the highest flowing electric pumps available and come with a two year warranty.

1 3/4" inlet fitting included
1 1/2" outlet fitting included

Installation Instructions

WP333 GM LS-x 55 GPM Centrifugal 12V Electric Water Pump

📦 In The Box

1	Electric Pump WP333
1	1.75" Lower Hose Fitting
1	1.5" Upper Hose Fitting
6	8mm x 90mm x 1.25P SSSHCS Bolts and Washers
2	GM Water Pump Gaskets P/N 12630223
1	Wiring Harness w/ 20 Amp Fuse
2	Contingency Decals

⚠️ AN fittings are available

🔧 To Do the Job You Will Need

Scraper or wire brush
Brake Cleaner
Sealant: Form-a-Gasket (Aviation), Form-A-Gasket 2 (Non-Hardening), Gaskacinch or RTV Silicone
Thread sealant: RTV silicone or liquid pipe thread sealant
6mm hex socket

⚙️ Mounting

Remove stock water pump. Clean and degrease gasket area. Be sure to coat both sides of the gasket with recommended sealant. Tack gaskets to back of the Meziere pump and align gasket to bolt holes. Apply a small amount of sealant to the threads of the hardware provided to prevent leaks. Bolt pump in place.

Run all six bolts up snug before tightening to recommended 15 ft./lbs.

🔌 Inlet

The inlet and outlet fittings come installed. They have an o-ring seal. If you remove them, be sure to use some grease on the o-ring when reinstalling.

🌡️ Thermostat & Heater Lines

The pump has a provision under the upper hose fitting for a thermostat. An early Chevy V8 thermostat is required - Stant number 13006 for 160°F, for example.

The pump also has two -08AN ORB ports that can be used for heater hose connections. Meziere part number WPM58 or WPM34 can be used in most applications that use stock hoses.

⚡ Wiring the Pump

Use the fused harness supplied with the pump.

🔵 BLUE Wire	→ 12 volt positive (+) switched source
⚫ BLACK Wire	→ Ground

Supply and ground wires should be 14 gauge minimum. All switches should be rated at 20 amps or better.

⚠️ WARNING: Not using a protection circuit (fused circuit) will void your warranty.

🚀 Startup / Running

Fill the cooling system. Replace fill cap and turn on pump. Remove fill cap and top off coolant level. Recheck level after one heat cycle.

⚠️ DO NOT RUN PUMP DRY for more than a few seconds.

✨ Beauty Tip

Your pump comes polished and waxed. Occasional waxing will allow dirt or debris to be wiped right off and offer some UV protection - the anodized colour can fade from prolonged exposure to sunlight.

All installation instructions, data, and specifications sourced from official Meziere Enterprises documentation.