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Product / Pressure Washers / 85.139.023B

GP TT2035EBF Pump Assembly – 3.5 GPM, 2,000 PSI, 3/4" Shaft

GP TT2035EBF Pump Assembly – 3.5 GPM, 2,000 PSI, 3/4" Shaft

Specifications

UNLOADER

External 85.300.003

WARRANTY

5 Years

RPM

3,450

PUMP MODEL

GP TT2035EBF

PUMP TYPE

Triplex

Oil Type

30W Non Detergent

Oil Capacity

11.2 oz

Thermal Relief Value

85.300.023

Max Inlet Temperature

74°C / 165°F

Manifold Type

Brass

Soap Injector

Adjustable 85.400.000

Discharge Size

3/8" Brass QC 85.300.103

Inlet Size

3/4" GHF

Plunger Piston

Ceramic

Unloader Type

External 85.300.003

Max GPM

3.5

Shaft Size

3/4"

Direct Drive

Electric

Weight

11.5 lbs

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PRODUCT

DESCRIPTION

High-Flow Triplex Pump for Electric Pressure Washers

The GP TT2035EBF Pump Assembly (Bare Pump Part #85.130.023) is a high-performance triplex direct-drive electric pump designed for reliability, efficiency, and long-term durability. Delivering up to 2,000 PSI at 3.5 GPM, this pump provides a strong combination of pressure and flow, making it ideal for cleaning large surfaces, vehicles, and light commercial equipment.

Built by General Pump (GP), a leading manufacturer in the pressure washer industry, the TT2035EBF features a brass manifold, ceramic plungers, and an external unloader for precise control and professional-grade performance. Backed by a 5-year warranty, it’s a pump designed to handle demanding residential and commercial cleaning tasks.

Key Features

  • Bare Pump Part #: 85.130.023

  • Pump Manufacturer: General Pump (GP)

  • Pump Model: TT2035EBF

  • Pump Style: Triplex, direct-drive electric

  • Max PSI: 2,000

  • Max GPM: 3.5

  • Shaft Size: 3/4"

  • Unloader Type: External (85.300.003)

  • Plunger (Piston): Ceramic for long-lasting durability

  • Inlet Size: 3/4" GHF (garden hose fitting)

  • Discharge Size: 3/8" Brass QC (85.300.103)

  • Soap Injector: Adjustable (85.400.000)

  • Manifold Type: Brass for strength and corrosion resistance

  • RPM: 3,450

  • Max Inlet Temp: 74°C / 165°F

  • Thermal Relief Valve: 85.300.023 included

  • Oil Capacity: 11.2 oz

  • Oil Type: 30W non-detergent oil

  • Weight: 11.5 lbs

  • Warranty: 5 Years

Triplex Design for Efficiency and Longevity

The triplex plunger design of the TT2035EBF ensures smoother operation, reduced vibration, and longer service life compared to axial pumps. With three high-strength ceramic plungers, the pump is engineered to withstand abrasion, heat, and extended use.

Producing 2,000 PSI at 3.5 GPM, this pump offers an excellent balance of moderate pressure and high flow. The higher gallon-per-minute rating makes it ideal for cleaning large areas quickly, rinsing debris efficiently, and tackling applications where water volume is just as important as pressure.

The brass manifold ensures durability against corrosion and pressure fatigue, while the precision design of General Pump components ensures dependable performance year after year.

User-Friendly Features

The TT2035EBF is equipped with features that enhance convenience and versatility:

  • External unloader (85.300.003): Provides precise control over system pressure and makes servicing or replacing the unloader simple.

  • Adjustable soap injector (85.400.000): Allows operators to fine-tune detergent application. Just switch to a low-pressure nozzle to draw soap into the water stream.

  • Brass quick-connect discharge (3/8”): Ensures fast, secure hose connections that resist leaks and simplify setup.

These features make the pump versatile enough for residential and professional operators who need reliability and ease of use.

Protection and Maintenance

The pump includes a thermal relief valve (85.300.023), which automatically releases overheated water during extended bypass, protecting seals and internal components from heat damage.

It requires 11.2 oz of 30W non-detergent oil for proper lubrication. Regular oil checks and scheduled oil changes are easy, low-cost maintenance tasks that extend pump life.

With a maximum inlet water temperature of 165°F (74°C), this pump offers more tolerance than most models, making it ideal for applications where warmer water may be used.

At 11.5 lbs, the pump combines rugged durability with manageable weight, ensuring easy installation and dependable operation.

Common Applications

The GP TT2035EBF Pump Assembly is designed to deliver consistent performance across a wide variety of cleaning tasks. Its higher flow output makes it particularly effective in applications where rinsing speed and coverage are priorities. Typical uses include:

  • Patios, Driveways, and Walkways – Quickly clean large outdoor surfaces with strong water flow.

  • Decks and Fences – Restore wood, composite, or vinyl materials effectively.

  • Fleet and Vehicle Washing – Rinse dirt and grime from cars, trucks, RVs, and boats.

  • Agricultural Equipment – Wash tractors, implements, and other farm machinery.

  • Commercial Property Maintenance – Handle siding, outdoor furniture, and large workspaces efficiently.

Its 3/4” shaft size ensures compatibility with a wide range of electric motor setups, making it an excellent replacement pump for high-performance electric pressure washer systems.

Product Specifications

  • Part #: 85.130.023

  • Manufacturer: General Pump (GP)

  • Model: TT2035EBF

  • Style: Triplex, direct-drive electric

  • Max Pressure: 2,000 PSI

  • Max Flow Rate: 3.5 GPM

  • Shaft Size: 3/4”

  • RPM: 3,450

  • Unloader: External (85.300.003)

  • Soap Injector: Adjustable (85.400.000)

  • Manifold Material: Brass

  • Plunger Material: Ceramic

  • Inlet Connection: 3/4” GHF

  • Discharge Connection: Brass QC 3/8" (85.300.103)

  • Oil Capacity: 11.2 oz (30W non-detergent oil)

  • Thermal Relief Valve: 85.300.023

  • Max Inlet Temp: 74°C / 165°F

  • Weight: 11.5 lbs

  • Warranty: 5 Years

Backed by General Pump Quality

With a long-standing reputation for engineering excellence, General Pump is a trusted name worldwide for pressure washer components. The TT2035EBF Pump Assembly continues this tradition with its triplex plunger design, brass manifold, ceramic plungers, and external unloader.

Protected by a 5-year warranty, this pump offers peace of mind and long-term value, making it a smart investment for homeowners, contractors, and commercial operators alike.

When you need dependable high-flow performance, trust the GP TT2035EBF Pump Assembly—engineered for reliability, designed for results, and built to last.

Frequently Asked Questions about Pressure Washers

How to store a pressure washer?

To ensure the durability of your heavy duty pressure washer:

  • Empty the gas tank to prevent fuel from degrading or clogging the engine.
  • Empty the pump and hoses of any remaining water.
  • Perform necessary maintenance before storage.
  • Store in a dry area.
  • Cover.

What is a pressure washer?

A power washer is a cleaning machine that uses a gasoline engine to power a high pressure water pump and nozzle. It’s used to clean driveways, decks, vehicles, outdoor furniture and more by spraying water at high PSI to remove dirt, grime, mold and other debris.Many models also come with a detergent tank for added cleaning power.

How does a power washer work?

A power washer works by drawing water from a connected hose and pumping it through a high pressure nozzle. The gas engine powers the pump which pressurizes the water and then expels it through the nozzle at high speed to clean the surface. The water pressure is measured in PSI (pounds per square inch) and the flow rate is measured in GPM (gallons per minute).Many models also feature adjustable water pressure settings to cater to different cleaning needs. BE makes pressure washing easy with models available for light jobs and heavy duty commercial cleaning projects.

Gas vs Electric power washers?

The main difference is that a gas pressure washer, known for its cleaning power, is powered by a gasoline engine, making it more powerful and portable, while an electric pressure washer is powered by electricity and is generally quieter and lighter.

Gas pressure washers are for heavy duty and large areas due to their durability, whereas electric pressure washers are for smaller jobs.

Your BE electric pressure washer is perfect for smaller jobs and built for portability, and we offer a wide range of electric models. Included with our electric models is a long extension cord for use anywhere around your house.

What to consider?

When choosing a gas pressure washer consider:

  • Pressure (PSI): More PSI means more cleaning power but also more potential for damaging delicate surfaces.
  • Flow Rate (GPM): More GPM means faster cleaning as more water is dispensed.
  • Engine Power: Bigger engines mean more durability and power.
  • Portability: Weight, handle design and wheel size for easier to move.
  • Nozzles: Multiple spray nozzles to adjust the spray pattern for different tasks.
  • Adjustable Nozzle: Allows for fine-tuning the spray intensity and pattern for various cleaning needs.

How much pressure do I need for?

The required pressure (PSI) and cleaning power depend on the surface you’re cleaning:

  • Light duty (car washing, outdoor furniture): 1,300-1,800 PSI.
  • Medium duty (patios, fences, decks): 2,000-3,000 PSI.
  • Heavy duty (driveways, brick walls, large equipment): 3,000+ PSI.

Many pressure washers come with adjustable pressure settings to handle different cleaning tasks effectively.

Can a pressure washing damage surfaces?

Yes, a power washer can damage surfaces if used incorrectly. High pressure water can strip paint, dent soft surfaces or even cause structural damage if the pressure is too high or the nozzle is held too close to the surface. Always use the right PSI for the material you’re cleaning and keep a safe distance from delicate surfaces.

To prevent damage, consider using a model with adjustable pressure settings.

How to maintain your pressure washer?

To ensure the durability and smooth operation of a pressure washer:

  • Change the oil as per manufacturer’s instructions.
  • Clean or replace the air filter to ensure good airflow.
  • Inspect and clean the nozzle regularly to prevent clogs.
  • Drain the gas tank if you’re storing the washer for a long time.
  • Check the hoses for leaks or damage and replace them if needed.
  • Follow regular maintenance requirements to keep the washer in optimal condition.

Can I use a pressure washer in cold weather and low water temperature?

You can use a pressure washer in cold weather but it’s more difficult. The water flow rate in the hoses and pump can freeze and damage the equipment. If you plan to use your pressure washer in cold temperatures make sure to winterize it and store it in a warm area when not in use. You can also use anti-freeze solutions for pressure washers.

Some models are designed to use hot water, which can be particularly effective for cleaning in cold weather.

Do I need any accessories?

Common accessories for power washers: