When selecting a washer that includes a detergent tank, the focus is on compatibility, durability, and a reliable pump feed for consistent cleaning. This guide highlights five compatible detergent-tank options, detailing who each is best for and why. Ideal buyers include homeowners tackling frequent outdoor washing, professional-detailing enthusiasts, and DIYers replacing worn tanks on compatible machines.
| Product | Best For | Why It Stands Out |
|---|---|---|
| Homelite OEM HOM580875014 Detergent Tank | Homelite equipment owners | Genuine OEM replacement with broad compatibility for multiple RY-series models. |
| GENTERUN 580875016 Soap Tank | All-purpose pressure washers | Thick, chemical-resistant plastic and leak-proof design for long-term use. |
| WeiLaiKeQi Detergents Tank | Compact setups, Karcher-style fits | Compact 22×15 cm jug with PP material for easy handling and reuse. |
| GENTERUN 580875014 Soap Tank | Durable, reliable fits | Direct-fit design with leak-proof storage and resistant construction. |
| Ziyunshanghang Electric Pressure Washer Soap Tank | Ryobi-compatible systems | Electric-pressure-washer-specific tank for RY141900/580875016 compatibility. |
Homelite OEM HOM580875014 Pressure Washer Detergent Tank

Best for owners of Homelite and several Ryobi-compatible models. The Genuine, OEM part number HOM580875014 serves as a direct replacement for multiple RY-series pressure washers, including RY142300 and RY803001 family units. This tank is designed to integrate with the original mounting points, providing a stable reservoir for detergent and cleaning solutions during operation.
Who it’s best for: Homeowners who rely on OEM parts for dependable performance and those who maintain multiple Homelite or Ryobi-compatible units. Why selected: It’s the only option in this list that is explicitly listed as an OEM replacement for a broad range of models, ensuring compatibility and proper fitment.
Caution: Availability may vary by model year; verify your exact model number before purchase to ensure compatibility.
GENTERUN 580875016 Soap Tank | Detergent Reservoir

Best for general-purpose pressure washers needing a robust, leak-proof detergent reservoir. This tank emphasizes thick chemical-resistant plastic for long-lasting durability and a precision-molded shape to ensure a secure fit into mounting points. It’s suitable for various pressure washer setups that require a reliable reservoir.
Who it’s best for: Contractors and DIYers who value durability and a secure, installation-friendly design. Why selected: The combination of chemical resistance and a secure fit reduces cracking risks and ensures steady solution flow during use.
Caution: Check mounting compatibility with your specific model, as some frames may require minor adjustments or seals for a tight mount.
GENTERUN 580875014 Soap Tank | Detergent Reservoir

Best for users needing a direct-fit solution with reliable storage for soap and cleaning solutions. This tank features durable chemical-resistant plastic and a tight seal to prevent leaks during operation. It’s designed for straightforward installation and stable mounting on compatible washers.
Who it’s best for: Professional cleaners and serious DIYers who want a dependable replacement that matches factory dimensions. Why selected: The direct-fit design helps simplify installation and reduces chances of mounting gaps that could affect performance.
Caution: As with any replacement part, match the exact model number to avoid mounting or flow issues if the unit is a legacy or region-specific variant.
Ziyunshanghang Electric Pressure Washer Soap Tank

Best for Ryobi-compatible electric pressure washers seeking a tailored detergent tank solution. This tank is marketed specifically for the Ryobi 580875016 and RY141900 families, emphasizing seamless repairs and peak performance. It suits users who want a plug-and-play replacement that preserves original workflow.
Who it’s best for: Homeowners and small shops operating Ryobi platforms with a need for straightforward replacement parts. Why selected: The listing targets Ryobi-specific models, aligning with model compatibility and ease of installation.
Caution: Verify that your unit’s model number aligns with 580875016 or RY141900 when ordering to avoid misfit issues in mounting or capacity.
Buying Guide: How to Choose a Detergent Tank For Your Washer
- Model compatibility: Always verify the exact model numbers supported by the tank. Replacement parts often list compatible series; mismatches can cause leaks or misfeed.
- Material and durability: Look for chemical-resistant plastics with robust seams to resist cracking and deformation under pressure and extended use.
- Seal and fit: A tight seal prevents leaks and ensures consistent detergent delivery. Direct-fit designs ease installation and reduce mounting risk.
- Tank capacity: Consider how often you clean and the dilution ratio you use. Larger tanks reduce refill frequency but may require more space.
- Ease of maintenance: Tanks that are easy to disassemble or clean help maintain performance over time and prevent residue buildup that can affect cleaning results.
- Manufacturer vs third-party: OEM parts typically guarantee exact fit, while reputable third-party tanks can offer cost savings but require careful compatibility checks.
- Usage environment: For outdoor or semi-professional settings, choose a leak-proof design with robust mounting to handle vibration and movement.
Frequently Asked Questions
- What is the purpose of a detergent tank on a pressure washer?
– It stores soap or cleaning solutions and feeds them into the pump system for easy mixing during operation. - Can I use any detergent with a pressure washer tank?
– Use detergents recommended by your washer’s manufacturer or the tank’s compatibility list to avoid residue or clogging. - What should I check before buying a replacement detergent tank?
– Confirm model compatibility, mounting type, seal quality, and material durability to ensure a proper fit and leak resistance. - Are OEM detergent tanks always better than third-party options?
– OEM parts guarantee exact fit for the original unit, while reputable third-party tanks can offer savings if they match your model’s specifications. - How can I extend the life of a detergent tank?
– Rinse after use to remove detergent residues, store in a dry area, and inspect seals and mounting points regularly for wear.