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Best Allparts Equipment & Accessories Pressure Washers: 2 Models Compared

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You are looking at the best allparts equipment accessories pressure washers available today. This guide covers 2 models from Allparts Equipment & Accessories. The lineup focuses on replacement triplex plunger pumps for horizontal engine setups. These units come in grey and black finishes. They are compact, measuring around 11 inches in length and width. The Allparts DW3635 Triplex Pump leads the list. It is the top pick for replacing horizontal triplex plunger pumps. Our rankings rely strictly on the specifications published on the product listings.

Quick picks

#ProductBest forPrice
1 Allparts DW3635 Triplex Pump Best overall replacing horizontal triplex plunger pumps Check price of Allparts DW3635 Triplex Pump on Amazon
2 Allparts AAA Triplex Replacement Pump Best budget heavy-duty cleaning on horizontal engines Check price of Allparts AAA Triplex Replacement Pump on Amazon

Our 2 picks

Best overall

Allparts DW3635 Triplex Pump

Best for: replacing horizontal triplex plunger pumps

Maximum Pressure
3600 PSI
Flow Rate
3.5 GPM
Pump Type
Triplex plunger
Dimensions
11 × 11 × 9 inches
Weight
18 pounds

View on Amazon: Allparts DW3635 Triplex Pump Affiliate link

This is a horizontal triplex plunger pump designed for direct-drive engines. It delivers 3.5 GPM at 3600 PSI when running at 3400 RPM. The unit features a 1-inch hollow shaft and an SAE bolt pattern for easy mounting. Weighing 18 pounds, it measures 11 by 11 by 9 inches. It suits users needing a reliable replacement pump for high-flow pressure washer applications.

Pros

  • Delivers 3.5 GPM flow rate for strong cleaning power
  • Rated for 3600 PSI maximum pressure at 3400 RPM
  • Horizontal triplex plunger design for durable operation
  • 1-inch hollow shaft fits most standard horizontal engines

Cons

  • Requires verification of compatibility with your specific model number
  • Fixed 3400 RPM operating speed limits versatility
  • No included mounting hardware or installation guide

Good fit if

  • You need a direct replacement for a worn pump
  • You require a 3.5 GPM flow rate for heavy-duty jobs
  • You have a horizontal engine with a 1-inch shaft

Skip if

  • You need a vertical pump configuration
  • You require a flow rate higher than 3.5 GPM
  • You want a complete pressure washer unit instead of a pump

Verdict: Allparts Equipment & Accessories DW3635 Horizontal Pump offers solid 3.5 GPM performance for users replacing a failed triplex plunger pump on a horizontal engine setup.

Best budget

Allparts AAA Triplex Replacement Pump

Best for: heavy-duty cleaning on horizontal engines

Maximum Pressure
3600 PSI
Flow Rate
2.5 GPM
Pump Type
Triplex Plunger
Color
Black
Weight
16 pounds

View on Amazon: Allparts AAA Triplex Replacement Pump Affiliate link

This is a replacement pressure washer pump with a maximum pressure of 3600 PSI and a flow rate of 2.5 GPM. It features a horizontal triplex plunger design with a brass pump head. The unit includes an easy-start unloader system and a hollow shaft for 3/4 inch engines. It weighs 16 pounds. This pump suits users needing a durable upgrade for heavy-duty cleaning tasks.

Pros

  • 3600 PSI maximum pressure handles tough grime
  • Brass pump head resists corrosion and wear
  • Built-in easy-start unloader system for effortless operation
  • Oil sight glass allows for quick level checks

Cons

  • 2.5 GPM flow rate is lower than some competitors
  • 16-pound weight adds bulk to the setup
  • Requires installation on a 3/4 inch hollow shaft engine

Good fit if

  • You need a high-pressure replacement for a horizontal engine
  • You want a pump with a brass head for durability
  • You prefer an easy-start system for frequent use

Skip if

  • You require a flow rate higher than 2.5 GPM
  • Your engine shaft is not 3/4 inch hollow
  • You need a vertical pump configuration

Verdict: Allparts Equipment 3600 PSI Triplex Pump delivers strong cleaning power for heavy jobs. It is a solid choice for users with horizontal 3/4 inch engines who prioritize durability and easy starts.

Specifications side by side

Spec Allparts DW3635 Triplex Pump Allparts AAA Triplex Replacement Pump
Maximum Pressure 3600 PSI 3600 PSI
Flow Rate 3.5 GPM 2.5 GPM
Pump Type Triplex plunger Triplex Plunger
Pressure not stated 3600 PSI
Color Grey Black
Dimensions 11 × 11 × 9 inches not stated
Weight 18 pounds 16 pounds
Model DW3635 DWD2536

Allparts Equipment & Accessories Pumps Compared

Allparts Equipment & Accessories offers two main triplex pumps for horizontal engines. The DW3635 provides 3.5 GPM flow in a grey 18-pound frame. It fits users needing higher volume for standard cleaning tasks. Its 11 by 11 by 9-inch dimensions suit most horizontal setups.

The DWD2536 AAA model delivers 3600 PSI at 2.5 GPM. This black pump weighs 16 pounds. It targets heavy-duty jobs requiring strong pressure. Shoppers choosing between these units should compare flow needs versus pressure demands. The DW3635 suits volume-focused work. The DWD2536 fits high-pressure requirements. Both replace failed plunger pumps effectively.

Who Should Buy Allparts Pumps

This range suits users replacing failed triplex plunger pumps on horizontal engine setups. You have two clear choices based on flow rate. The DWD2536 offers 2.5 GPM at 3600 PSI for heavy-duty cleaning. It is lighter at 16 pounds. The DW3635 delivers 3.5 GPM for higher volume tasks. It weighs 18 pounds and measures 11 by 11 by 9 inches. Neither unit includes electric start or vertical mounting options. You need a horizontal engine with a 3/4 inch shaft. If you require vertical pumps or electric starters, this brand does not offer those features in this lineup.

Choosing the Right Triplex Pump

  1. Match GPM to your needs

    Flow rate determines how quickly you rinse surfaces. Higher gallons per minute means faster cleaning but uses more water. The DW3635 delivers 3.5 GPM, making it ideal for large areas where speed matters. If you need steady coverage for decks or driveways, this higher flow is a practical choice. Consider your task size before picking a model with lower output.

  2. Check PSI for tough grime

    Pressure removes stubborn dirt and oil. The DWD2536 pump provides 3600 PSI, which helps break down heavy buildup on concrete or machinery. Higher pressure is better for tough stains, while lower pressure suits delicate surfaces. Since this guide focuses on replacement pumps, ensure your engine can handle the pressure rating. Match the PSI to the dirt level you typically encounter.

  3. Verify engine compatibility

    These pumps are designed for horizontal engine setups. You must confirm your existing engine is horizontal and has a 3/4 inch shaft. The DWD2536 is noted for easy starts on horizontal engines. Using the wrong pump type can damage your machine. Check your current engine orientation and shaft size before purchasing. Compatibility ensures the pump mounts correctly and operates safely with your power source.

  4. Consider weight for installation

    Pump weight affects installation ease and vibration. The DW3635 weighs 18 pounds, while the DWD2536 is lighter at 16 pounds. A lighter pump may be easier to handle during replacement. Heavier units might offer more stability but require more effort to install. Factor in your physical comfort and the mounting space available. These small differences matter when swapping out old components.

  5. Review physical dimensions

    Size determines if the pump fits your frame. The DW3635 measures 11 by 11 by 9 inches. You need enough clearance for mounting and maintenance. Compare these dimensions to your current pump space. If your setup is tight, precise measurements prevent fitting issues. Ensure there is room for hoses and connections. Proper fitment avoids stress on fittings and ensures long-term reliability.

Frequently asked questions

Which Allparts pump is best for heavy-duty cleaning?

The DWD2535 model is the top choice for demanding tasks. It delivers 3600 PSI of pressure, which helps remove stubborn grime. This unit weighs 16 pounds and features a black finish. Its triplex plunger design ensures durability during intense cleaning jobs.

What is the flow rate of the DW3635 pump?

The DW3635 pump provides a flow rate of 3.5 gallons per minute. This higher volume allows for faster rinsing of large surfaces. It is a grey unit that weighs 18 pounds. The design prioritizes speed over maximum pressure for standard cleaning needs.

Are these pumps compatible with horizontal engines?

Yes, both models are designed specifically for horizontal engine setups. They serve as direct replacements for failed triplex plunger pumps. The DW3635 fits well with engines requiring 3.5 GPM, while the DWD2535 suits those needing 3600 PSI power.

How heavy is the Allparts triplex replacement pump?

The weight depends on the specific model you choose. The DWD2535 weighs 16 pounds, making it the lighter option. The DW3635 is slightly heavier at 18 pounds. Both are compact enough for standard horizontal engine installations.

What dimensions do these pumps have?

The DW3635 measures 11 inches in width, 11 inches in length, and 9 inches in height. The DWD2535 does not list full dimensions in its specs but is noted as a solid fit for horizontal setups. Both are designed to integrate seamlessly into existing systems.

Can I use these pumps for general pressure washing?

Yes, these pumps are suitable for general pressure washing tasks. The DW3635 is ideal for users who need consistent 3.5 GPM performance. The DWD2535 offers higher pressure for tougher stains. Both are built for durability in horizontal engine configurations.

What colors are available for these pumps?

The DW3635 pump comes in a grey finish. The DWD2535 model is available in black. These colors are standard for the triplex plunger designs. The finish helps protect the internal components while maintaining a professional appearance on your equipment.

See also