Meziere Enterprises
Meziere LS Electric Water Pump 100 Series - WP119SHD
Check fitment and quantity before ordering.
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Specifications
- Manufacturer torque spec
- 15 ft/lb
- Compatible engines
-
LS Series
Product details
Meziere 100 Series electric water pumps deliver 35-40 gpm of flow. Because they're electric, you won't have the usual horsepower loss at high rpm caused by a mechanical pump's impeller. Plus, their lightweight billet aluminium construction reduces overall engine weight. These pumps also feature CNC-machined aluminium housings, epoxy coated motor windings, an RF suppression circuit, and a one-piece, carbon-ceramic seal. They're available for a wide variety of V8 engines, including LT1 and LS1.
Note: The bottom hose is not included and can be selected below.
Installation instructions WP119 GM LS-x Centrifugal 12V Electric Water Pump
Important: The inlet fitting must be ordered separately to match your lower radiator hose type and size.
In the box
| Qty | Item |
|---|---|
| 1 | Electric Pump WP119 |
| 6 | 8mm x 1.25 x 25mm long SSSHCS bolts and washers |
| 1 | 1 in. NPT plug |
| 2 | GM water pump gaskets, P/N 12630223 |
| 1 | Wiring harness with 20 amp fuse |
| 2 | Contingency decals |
Tools needed
- Scraper or wire brush
- Brake cleaner
- Gasket 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
- Inlet fitting. A 1.25 in. outlet fitting is supplied; other options are available.
- 1/2 in. drive ratchet
- Spanner wrench
Mounting
Remove the stock water pump. Clean and degrease the gasket area, then coat both sides of the gasket with the recommended sealant. Tack the gaskets to the back of the Meziere pump and align them with the bolt holes. Apply a small amount of sealant to the supplied hardware threads to help prevent leaks, then bolt the pump in place.
Torque note: Run all six bolts up snug before tightening to the recommended 15 ft-lb.
Inlet
Hose inlets are designed to be tightened with a spanner wrench. If you do not have one, the job can be done using a pair of drill bits placed in the spanner holes and a screwdriver bridged across the drill bits.
Sealant note: Use a small amount of RTV silicone or liquid pipe thread sealant on the 1 in. pipe threads of the inlet and plug.
Wiring the pump
| Wire | Connection |
|---|---|
| Blue | 12 volt positive switched source |
| Black | Ground |
Supply and ground wires should be 14 gauge minimum. All switches should be rated at 20 amps or better.
Warranty warning: Not using a protection circuit, such as the supplied fused circuit, will void your warranty.
Startup and running
Fill the cooling system. Replace the fill cap and turn on the pump. Remove the fill cap and top off the coolant level. Recheck the level after one heat cycle.
Do not run the pump dry for more than a few seconds.
Finish care
Your pump comes polished and waxed. Occasional waxing will allow dirt or debris to be wiped right off and can offer some UV protection. Anodized colour can fade from prolonged exposure to sunlight.
Installation information sourced from Meziere Enterprises documentation.
Fitment
Confirm fitment before ordering. Contact us if you need help matching parts to your build.