300 Series Electric Water Pump Big Block Chrysler

Name: 300 Series Electric Water Pump Big Block Chrysler
Brand: MEZIERE
SKU: 680-WP306R
Price: 851.30 USD
Availability: InStock

^$851³⁰

Ships on 09/18/2026

Lowest Price Guarantee

Chrysler - Big Block

Big Block Chrysler
55 GPM
Red Anodized Finish

These high flow electric water pumps keep extreme Mopars cool, a big hit with the high compression and supercharged crowd. Meziere is proud to offer a true 55 gallon per hour electric water pump in the traditional Mopar configuration as well as a purpose built reverse flow configuration that directs the 'cooler' water to heads first - reduces hot spots and detonation. This pump requires Meziere 'WN' series fittings.
Includes:
Plugs for both driver and passenger sides
Drivers side adapter for standard mechanical temp sender
Adapter for 3/8' NPT electric sender

Features:
Fits big block Mopar B, RB, and Hemi
Suitable for street or drag strip use - 3000+ hour life expectancy
Show quality finish
High flow design provides 55 gallons per minute free flow rating
All stainless steel hardware included
Light weight. Complete big block Mopar unit weighs only 8.1 pounds!
Stainless steel large diameter main shaft with high performance ceramic seal
Pump will clear cam belt drives and most blower drives
Dual inlet ports machined to accept any of Mezieres 'WN-style' fittings

Technical Specifications:
Belt Drives: Standard Big Block Mopar design will clear Jessel belt drives and comparable belt drive systems.
Distributer Belt Drives: Spacers will be necessary to clear belt drive distributor systems.
Finishing The System: This pump is supplied complete with gaskets and hardware but without the inlet fitting. This should be ordered according to the size of your lower hose connection.
Amperage draw: Under normal use the pump will draw 11-12 amps.
Overall Height Dimension: The standard pump is 7.28' long from the mounting surface to the tip of the pump.
Pump Weight: This application weighs 8.1 lbs.

Additional Notes: The standard 35GPM pump is suitable for normally aspirated engines up to 650HP. Supercharged, turbocharged and high compression, high horsepower applications should use the 55GPM High Flow pump only. This model does not accept heater or bypass hoses as a standard.

Built to Flow 55 Gallons Per Minute!
Perfect for 12- and 16-Volt Electrical Systems

Mezieres aluminum 300 Series pumps are the highest flow electric water pumps on the market. Originally designed for NHRA Pro Stock cars, most people use these on street high performance cars. Although the appearance of these models are similar to the 100 series pumps, internally everything is larger. Inlet inside diameters are 1-3/8'' or 1-1/2''.

The impeller and pump cavity allow for greater volume of water. The heavy duty motors provide increased torque and RPM. The resulting flow rate of 55 gallons per minute is enough to cool anything from 650+ HP street cars to circle trackers to a 2200 HP Pro Mod. We strongly recommend this series pump for supercharged, nitrous, turbo high performance street engines. The 300 series pump is also available in remote mount versions if needed. The pump housing, motor cap, and impeller are CNC-machined from 6061-T6 billet aluminum for superior corrosion resistance. The stainless steel impeller shaft runs through a 1-piece carbon-ceramic seal that isolates the epoxy-coated motor from coolant for years of reliable service. The motor has a radio frequency suppression circuit in the motor brush card to reduce ignition ''RF'' interference. Some pumps feature a welded inlet connection but most pumps are machined with a NPT port(s) to direct water into the pump using one of the inlet adapters that you choose to best suit your needs. Inlet adapters are available in slip-on rubber hose style to AN sizes, inlet fittings are sold separately and not included with pump. Most pumps and fittings are available in chrome, polished or anodized finishes. Extended inlets, extensions, and angle adapters are also available. Meziere pumps are American made with pride and quality far superior to any other performance aftermarket company. Don't be misled by ''Others'' inflated flow numbers and outlandish claims. Meziere says what they mean and mean what they say. The 2 year, unlimited mileage guarantee and full satisfaction money back guarantee should convince you that buying Meziere is buying value!

300 Series Water Pump Features:

Show Quality Finish
Suitable for 12-Volt and 16-Volt Electrical Systems
All Stainless Steel Hardware
CNC-machined 6061-T6 Billet Aluminum Impeller, Pump Housing and Motor Cap
Stainless Steel Impeller Shaft
1-piece Carbon-Ceramic Seal
Provides 55 Gallons Per Minute Free Flow Rating
Pumps with Low Pressure Ports -08AN for Heater or Bypass Connection

Click on engine below to see your new Meziere 300 Series Electric Water Pump!
Chevy - Small Block
Chevy - Big Block
Chevy - LS Series
GM/Chevy DRCE Pro Stock Block
Ford - Small Block
Ford - Big Block
Ford - Modular 4.6L/5.4L/V10
Ford - 5.0L Coyote
Chrysler - Big Block
Chrysler - 5.7L / 6.1L Hemi
Replacement Center Section
Replacement Center Section with High Pressure Port