Briggs & Stratton 5436K Replacement Gas Cap
Best replacement part for homeowners maintaining reliable outdoor power equipment.
Keep your outdoor power equipment running smoothly with the Briggs & Stratton 5436K Replacement Gas Cap. This genuine OEM part is designed to securely cover and protect your fuel tank opening, preventing leaks and contamination. Crafted from durable plastic, it ensures a reliable, screw-on fit for easy installation. Essential for maintaining fuel system integrity, this cap guarantees dependable performance from your Briggs & Stratton powered lawn mower or other outdoor tools. It's a simple yet crucial component for any homeowner focused on reliable equipment maintenance.
$16.49
Owner Satisfaction
4.6
/ 5
Category Rank
35
/ 237
#35 in Lawn Mower Accessories
Price vs Category Average
-68%
Below average
Material
Plastic
/ Plastic
Who it's for
- Owners seeking a guaranteed leak-free factory seal
- Users prioritizing long-term durability and engine safety
- Operators needing reliable fuel flow to prevent stalling
Who should skip it
- Budget-conscious buyers looking for cheaper aftermarket alternatives
- Shoppers who haven't verified their specific engine model number
- Users frequently running high-ethanol fuel in harsh sunlight
Performance breakdown
OEM Compatibility
Guaranteed factory-spec fit eliminates guesswork for Briggs & Stratton owners.
Installation Simplicity
The straightforward screw-on design allows for a tool-free, instant replacement.
Material Durability
Rugged plastic construction withstands harsh outdoor conditions and frequent engine vibration.
Seal Integrity
Provides a tight, reliable closure to prevent fuel evaporation and leaks.
Environmental Resistance
Engineered to resist corrosion and degradation from constant weather exposure.
Maintenance Utility
A critical, low-cost component that keeps fuel systems running flawlessly.
Key Specs
Material
Plastic
Fit Method
Screw-on
Part Number
5436K
Compatible Brands
Briggs & Stratton
Accessory Type
Fuel System Accessory
Weather Resistant
Yes
Corrosion Resistant
Yes
Features
- Genuine OEM replacement part
- Protects fuel tank opening
- Durable plastic construction
- Secure screw-on fit
- Ensures fuel system integrity
- Easy to install
- Weather resistant
- Corrosion resistant
What customers say
Owners express significant satisfaction with this OEM replacement gas cap, praising its perfect fit and immediate functionality. It reliably resolves issues like fuel leaks and engine stalling often caused by faulty original caps. As an authentic part, it ensures flawless compatibility with various engines, eliminating guesswork. Reviewers highlight its robust construction and secure seal, crucial for preventing debris and maintaining fuel system pressure. The cap's effective venting mechanism restores optimal engine performance. While slightly pricier than generic options, its reliability and guaranteed performance offer excellent value, preventing future maintenance headaches. Installation is simple, contributing to high satisfaction. This cap is a highly recommended, dependable solution for outdoor power equipment.
Know before you buy
This is a genuine OEM part specifically designed for Briggs & Stratton engines. While it fits many models, you should verify your engine's model number against the manufacturer's parts list to ensure compatibility.
You should replace your gas cap if you notice fuel leaking around the tank opening, if the cap no longer screws on tightly, or if the plastic shows signs of cracking or degradation from weather exposure.
No, the 5436K is a standard screw-on replacement cap and does not include an integrated tether or retaining strap.
Yes, this cap is constructed from durable, weather-resistant, and corrosion-resistant plastic designed to withstand the outdoor conditions typical for lawn care equipment.
No tools are required. The cap features a simple screw-on design that can be installed by hand in seconds.
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$16