A compromised fuel tank is a serious liability for any lawn machine, leading to dangerous fuel spills, poor engine function, and heightened fire risks.
Over time, constant exposure to harsh fuel chemicals, UV radiation, and severe temperature fluctuations causes plastic and metal tanks to degrade and become brittle.
Replacing a failing tank is paramount for restoring safe, reliable operation and maintaining engine health.
Our curated guide highlights the top replacements available today, focusing on solutions made from high-impact, UV-resistant materials like HDPE, which offer superior durability against corrosion and environmental wear.
We prioritize exact compatibility and precision-engineered parts to ensure a seamless fit for your push mower, riding tractor, or zero-turn machine.
1. 184900 Fuel Tank Assembly for Husqvarna
The 184900 Fuel Tank Assembly is recognized as a highly cost-effective and dependable direct-fit solution for an extensive range of popular riding mowers.
Its primary appeal lies in its wide compatibility, fitting models from Husqvarna, Craftsman, Poulan, Roper, and Sears.
This assembly is specifically designed to resolve the frequent issue of a cracked or brittle original equipment manufacturer (OEM) tank without requiring a significant financial investment.
The tank features standard construction that focuses purely on core functionality: securely containing fuel and preventing dangerous leaks.
With precise dimensions confirmed during assessment, including a 13-inch total length and 10-inch tank body, this unit is engineered for a precise drop-in replacement, ensuring mounting points align perfectly with factory hardware for DIY installation.
It delivers essential performance, restoring safe operation at an economical price point.
Best For: Homeowners needing a highly economical, direct replacement for common Craftsman and Husqvarna riding mower models.
Key Specs
| Feature | Detail |
|---|---|
| Part Numbers | 532184900, 184900, 109202X |
| Compatibility | Husqvarna, Craftsman, Poulan, Sears |
| Dimensions | 13″ Total Length, 5″ Deep |
| Best For Rating | Best Budget Friendly |
Pros
- Highly Affordable replacement option.
- Direct OEM specification fit.
- Broad Compatibility across brands.
- Compact Dimensions ensure easy install.
- No-fuss functionality focus.
Cons
- Smaller capacity than rivals.
- Basic construction materials.
- No warranty information listed.
2. Gas Fuel Tank for B&S 699374
This precision-engineered fuel tank is the perfect match for equipment utilizing the highly common Briggs & Stratton Quantum 4HP to 6.75HP engine series.
It is an essential, reliable replacement part designed for walk-behind mowers from manufacturers like John Deere, Troy Bilt, and Craftsman.
The construction features corrosion-resistant plastic, directly mitigating the risk of fuel leaks and contamination that often afflict aging OEM tanks.
Functioning as a seamless replacement, this tank ensures that the fuel supply remains clean and properly ventilated, protecting sensitive internal engine components like the carburetor.
Thanks to precision injection molding, the tank aligns perfectly with the engine’s mounting points, guaranteeing a quick and straightforward installation process.
This solution provides a targeted, OEM-quality fix specifically for owners of B&S-powered equipment. The product also comes with the assurance of a 12-month warranty.
Best For: Servicing walk-behind mowers specifically powered by Briggs & Stratton Quantum engines (4HP to 6.75HP).
Key Specs
| Feature | Detail |
|---|---|
| Engine Range | 4HP to 6.75HP |
| Replaces Numbers | 494213, 499618, 693377 |
| Material | Corrosion-resistant plastic |
| Warranty | 12-Month Warranty |
Pros
- B&S Engine specific fitment.
- OEM Specification quality match.
- Corrosion-Resistant durable plastic.
- Quick Installation process expected.
- Protects engine components well.
Cons
- Limited engine scope compatibility.
- Smaller capacity footprint.
- Integrated mounting only.
3. Misakomo 4 Quart Plastic Fuel Tank
The Misakomo 4 Quart Plastic Fuel Tank (Model 691993) is engineered for exceptional versatility, making it the ideal choice when a standard, direct-fit tank is not practical.
It excels in universal remote mounting applications, serving as the perfect fuel source for varied equipment like log splitters, chipper/shredders, snow blowers, tillers, and custom repair projects.
This comprehensive kit includes the essential components—the 4-quart tank, a cap, and a crucial shut-off valve—offering a complete, ready-to-install fuel delivery system.
A standout feature is the robust design, which incorporates a durable aluminum fuel shut-off valve insertion hole.
This choice minimizes the risk of cracking at a critical stress point, which is common in high-vibration environments.
While it sacrifices specific OEM compatibility, it provides unmatched adaptability for professionals and hobbyists repairing or building non-standard lawn and garden machines.
Best For: Custom installations, professional builds, or non-mower lawn equipment needing a reliable, adaptable fuel source.
Key Specs
| Feature | Detail |
|---|---|
| Capacity | 4 Quart |
| Key Features | Aluminum Valve, Shut-Off Valve |
| Material | Plastic with Aluminum Valve |
| Installation | Remote Mounting Design |
Pros
- Remote Mounting designed solution.
- Includes Shut-Off valve and cap.
- Durable Aluminum port prevents cracks.
- Highly Versatile for multiple machines.
- Ideal for custom projects.
Cons
- Not Direct-Fit replacement.
- Requires Custom installation work.
- No specific warranty listed.
4. Fuel Tank for B&S 594112
This fuel tank replacement sets itself apart through its premium, high-impact plastic construction, positioning it as a durable upgrade rather than a mere replacement for original tanks.
Engineered to address the long-term issue of standard OEM tanks becoming brittle, the 594112 replacement is built for enhanced, long-term stability and superior resilience.
The robust material quality is intended to withstand the severe expansion and contraction cycles that often lead to failure in lesser tanks.
Furthermore, its design actively helps prevent both fluid leaks and overheating, contributing directly to a longer overall engine life.
This tank offers exceptional convenience with a specified installation time of under 10 minutes for compatible B&S models.
It targets users, especially commercial operators, who demand maximum reliability and build quality to avoid future, costly repairs, justifying its slightly higher price point.
Best For: Commercial landscapers or heavy-duty homeowners requiring maximum durability that surpasses standard OEM specifications.
Key Specs
| Feature | Detail |
|---|---|
| OE Replace | 594112, 84004115 |
| Material | High-impact plastic |
| Installation Time | Under 10 minutes |
| Warranty | 12-month warranty |
Pros
- High-Impact Plastic superior material.
- Prevents Overheating during operation.
- Long-Term Stability guaranteed quality.
- Exceeds OEM design specifications.
- Quick Installation process assured.
Cons
- Specific B&S fitment required.
- Premium Price point investment.
- Not widely compatible.
5. HQPASFY 1.4 GAL Fuel Gas Tank
The HQPASFY 1.4 GAL fuel tank (often replacing part number 7601092MA) is the specialized, perfect-fit answer for a specific audience of BS and Mur-ray lawn tractor owners.
Its compact 1.4-gallon capacity is optimally sized for smaller riding mowers, guaranteeing a fit within the original chassis without requiring any modifications.
This tank is a complete replacement kit, including the heavy-duty constructed tank body and a matching cap, simplifying the repair process by avoiding the need to source multiple separate components.
The design is geared toward restoring factory performance and safety, boasting standard mounting points that align perfectly with an extensive list of compatible Mur-ray models.
For the DIY enthusiast replacing parts like 94073MA or 7601092MA, this unit offers a specialized and absolutely guaranteed fit, prioritizing precision over generic compatibility.
Best For: Replacing cracked tanks on smaller Mur-ray lawn tractors where a compact, precise fit is essential.
Key Specs
| Feature | Detail |
|---|---|
| Capacity | 1.4 GAL |
| Compatibility | BS and Mur-ray Lawn Mower |
| Construction | Heavy-duty |
| Replaces Numbers | 7601092MA, 94073MA, 690280 |
Pros
- Compact 1.4-Gallon size optimizes fit.
- Specific Mur-ray guaranteed fit.
- Heavy-Duty Build ensures long life.
- Complete Kit includes a matching cap.
- Restores factory safety specifications.
Cons
- Smaller capacity limits runtime.
- Limited Brand compatibility range.
- Highly specialized application focus.
6. yourour 3.5 Gallon Gas Fuel Tank
The yourour 3.5 Gallon Gas Fuel Tank is highlighted as the Best Overall option due to its combination of high capacity and broad, reliable compatibility.
Constructed from high-toughness plastic, this replacement tank is designed for maximum performance, featuring leak prevention and superior UV resistance.
This makes it an excellent choice for owners of large riding equipment across numerous common brands, including Craftsman, Husqvarna, Sears, Poulan, and Weed Eater.
Its large 3.5-gallon size is specifically beneficial for managing longer mowing sessions, reducing the need for frequent interruptions for refueling.
The quality material and wide applicability make this tank a robust investment for maintaining the operational safety and efficiency of high-usage equipment. It provides a comprehensive solution for those needing significant volume and durability.
Best For: Operators of larger riding mowers who prioritize maximum fuel volume and wide compatibility across brands.
Key Specs
| Feature | Detail |
|---|---|
| Capacity | 3.5 Gallon |
| Compatibility | Craftsman, Husqvarna, Poulan, Sears |
| Material | High-toughness plastic |
| Key Features | UV Resistance, Leak Prevention |
Pros
- High Capacity (3.5 Gallons).
- Wide Compatibility across brands.
- High-Toughness plastic material.
- Leak Prevention technology.
- Reliable customer support listed.
Cons
- Physically larger installation.
- Higher material investment cost.
- May not fit compact mowers.
Lawn Mower Fuel Tank Replacement Buying Guide
Exact Fit and Compatibility
Always confirm the replacement tank matches your engine type, make, and model. Checking the original equipment manufacturer (OEM) part number (e.g., 532184900) against the replacement’s compatibility list is the most reliable method to ensure a direct, leak-free, and proper fit.
Material and Durability
Opt for tanks made from high-impact, UV-resistant plastic, which actively prevents cracking, warping, and corrosion caused by fuel chemicals and sun exposure.
Look for anti-static properties to reduce fire risk and choose rust-proof construction to prevent fuel contamination.
Capacity and Design
Match the tank capacity to your usage: large tanks (3.5 gallons) suit riding mowers for long sessions, while compact units (4 quarts) work for push mowers.
Ensure the mounting style, dimensions, and hose connections align with your mower’s frame and existing setup.
Safety Features
Prioritize tanks that include child-resistant caps to prevent accidental spills and meet modern standards. Secure sealing is crucial for preventing fuel vapor loss and leaks.
Adequate ventilation allows proper pressure release, which prevents fuel flow issues and engine flooding.
Complete Kit and Warranty
Maximize convenience by selecting kits that include all necessary components, such as the fuel cap, mounting hardware, and a shut-off valve.
A complete, OEM-matching kit saves installation time and guarantees component synergy. Aim for at least a 12-month warranty.