Water Pump Back Plate Chrysler 5.7L / 6.1L Hemi

Name: Water Pump Back Plate Chrysler 5.7L / 6.1L Hemi
Brand: MEZIERE
SKU: 680-WP315S
Price: 339.63 USD
Availability: InStock

^$339⁶³

Ships on Nov 02, 2026

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Chrysler - 5.7L / 6.1L Hemi

Chrysler 5.7L / 6.1L Hemi
Black Anodized Finish

This plate is often used when converting to an electric pump. Many of Meziere pump designs are not able to completely enclose the original water chamber in the cast aluminum timing covers such as is found in the late model Hemi application. This back plate uses the factory molded gasket to seal up the timing cover and successfully complete your water pump installation.
Features:
Fits late model Hemi style cover
Designed to be used with pump p/n 680-WP314
Aluminum CNC profiled

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