Comet ZWD 4040G Industrial Triplex Plunger Pump, 4000 PSI, 4.0 GPM, 3400 RPM, 1" Shaft Gas Engines (31004-00037)

The Comet ZWD 4040G (part 31004-00037) is an industrial duty triplex plunger pump for 9 to 13 HP gasoline engines with a 1" shaft. It delivers 4.0 GPM at up to 4,000 PSI and features a reinforced, enlarged crankcase, oversized bronze connecting rods, stainless unitized check valves and heat-resistant ceramic plungers.

Key Features

• Reversible Crankshaft for Easy Right or Left Hand Mounting
• Increased Fin Depth Increases Surface Area to Maximize Heat Dissipation
• Stainless Steel Unitized Check Valves
• Heat-Resistant Solid Ceramic Plungers Operating on Lubricated Packings
• Direct Drive Gas Engine Mounting Flange (SAE J609B)
• Reinforced Crankcase for Increased Load Capacity
• Enlarged Crankcase Increases Oil Capacity for Better Lubrication and Lower Operating Temperatures
• One-Piece Industrial-Grade Oversized Bronze Connecting Rods
• Replaces Comet # 6305.0900.00

Specifications

Note: High Pressure Systems require a primary pressure regulating device (i.e. regulator, unloader) and a secondary pressure relief device (i.e. pop-off valve, relief valve). Failure to install such relief devices properly could result in personal injury or damage to pump or property. We do not assume any liability or responsibility for the operation of the user’s high pressure system.

Note: Item for sale is PUMP ONLY as shown in picture and does not include unloader which is required for proper operation

Frequently Asked Questions

What does it replace?

Comet 6305.0900.00.

Does it include an unloader?

No. This is the pump only, and an unloader or regulator is required.

What horsepower is required?

14.5 GHP.

What are the ports?

1/2" FPT inlet and 3/8" FPT outlet.

How much oil does it hold?

14 oz.