Meziere WP105SHD Electric Water Pump Insert for Big Block Mopar
- Big block Chrysler insert, uses the stock pump housing
- 42 GPM free flow from a heavy duty motor
- 6 to 7 amps draw under normal use
- 4.00 inches from mounting surface to pump tip, 3.7 lb
- Black anodized aluminum with stainless hardware
- 3000+ hour life expectancy
Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
An electric insert for the factory big block Mopar water pump housing, supplied with gaskets and hardware. Heavy street engines are pointed to a bigger pump by the maker, so check the horsepower guidance.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B005JVGDDIModel: WP105SHDCategory: Water Pumps
Overview
Under the hood of a big block Mopar, the WP105SHD drops into the factory Chrysler water pump housing as an electric pump insert. It uses the factory gaskets, a stainless steel main shaft and a ceramic seal, and it comes with all stainless steel hardware.
Here an electric pump swaps in without replacing the factory housing, which makes the job quick. Larger power levels move the buyer to the maker's heavy duty pumps, and factory brackets may need relocating.
Who it's for
A hot rod or muscle car with a big block Chrysler where the stock housing is being kept. Owners of other engine families, and those with high output engines, need a different pump, as the maker recommends its high flow unit for those.
Pros and cons
- Installs in the stock pump housing
- Gaskets and hardware supplied complete
- Stainless main shaft with ceramic seal
- Black anodized show finish
- Factory brackets may need relocating
- Higher voltage systems need the optional motor
- Heavy engines need the HD pump
Performance notes
Flow is set by the motor, which the listing rates at the free flow figure in the key facts, so real flow in a running system will be lower once the radiator and block add restriction. The maker advises the 16 volt motor option for 16 volt systems, and the supplied 12 volt pump works only for limited use there.
Specifications
| Model | WP105SHD |
|---|---|
| Dimensions & fit | |
| Length from mounting surface | 4.00 inches |
| Weight | 3.7 pounds |
| Capacity & performance | |
| Free flow | 42 gallons per minute |
| Power & efficiency | |
| Amperage draw | 6 to 7 amps |
| Engine power guidance | Normally aspirated up to 650 HP |
| Construction & materials | |
| Material | Aluminum, black anodized |
| Compatibility & installation | |
| Vehicle type | Car |
| Included components | |
| Included | Gaskets and stainless steel hardware |
| Other details | |
| Fit type | Vehicle specific fit, big block Chrysler |
| Life expectancy | 3000+ hours |
Frequently asked questions
Is the Meziere WP105SHD a complete water pump housing?
No. It is an electric insert that uses the stock Chrysler water pump housing and factory gaskets. The housing is not part of the pump.
Do I need extra parts to install the WP105SHD?
The listing says it is supplied complete with gaskets and hardware and that no other items are needed. Relocating factory brackets may be required.
Will it cool a high horsepower engine?
The listing calls the 42 GPM pump suitable for normally aspirated engines up to 650 HP. It also says street engines over 450 HP should use the HD pumps, and boosted or high compression engines should use the 55 GPM high flow pump.
Can it run on a 16 volt system?
The 12 volt pump works for limited use only. For a 16 volt system the maker recommends the optional 16 volt motor.