Best Rubber Fuel Tank Bushings for Lawn Mowers and Generators

The top picks explained here help you prevent fuel leaks and seal a worn tank grommet. These bushings are best for users replacing worn grommets on lawn mowers, tractors, generators, and pressure washers. Choose based on hole size, compatibility with your engine brand, and the number of bushings you need. The listed products are suitable for 1/2″ diameter tank holes and many popular engines, with cautions noted where ethanol or specific models may limit compatibility.

Product Brand Key Point
PEHUAP Fuel Tank Rubber Grommet Bushing 12 PCS PEHUAP 12-piece nitrile rubber set; compatible with many mowers and generators
Rubber Fuel Tank Grommet Bushing 3 Pack LETAYAR 3-pack; wide compatibility across brands
QUASION Fuel Tank Grommet Bushing 12-Pack QUASION 12-piece nitrile rubber set; broad OEM cross-compatibility
6Pcs Fuel Tank Grommet Bushing Welandya 6-pack; 13mm hole compatibility; generator and mower use
LETAYAR Fuel Tank Grommet Bushing 4-Pack LETAYAR 4-pack; direct replacement for common part numbers

PEHUAP Fuel Tank Rubber Grommet Bushing 12 PCS


PEHUAP Fuel Tank Rubber Grommet Bushing 12 PCS

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Best for buyers replacing a worn fuel tank bushing on a variety of outdoor power equipment. This 12-piece nitrile rubber set is designed for 1/2″ tank holes and is suitable for generators, lawn mowers, and garden tractors. It is a straightforward direct replacement when grommets crack or harden, helping to prevent fuel leaks. Caveat: not suitable for ethanol fuel greater than 10% or for tanks with non-standard hole diameters.

  • Best for mass replacements on multi-equipment setups
  • Better for users who want a single purchase covering several machines

Rubber Fuel Tank Grommet Bushing 3 Pack


Rubber Fuel Tank Grommet Bushing 3 Pack

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This three-pack provides a mid-size option for a few select machines without stocking too many spares. It targets popular brands like Cub Cadet, Troy-Bilt, Toro, and Wheel Horse, plus fits Kohler and Tecumseh engines. Best for homeowners with a few machines or a small fleet of equipment. Limitation: functional compatibility is strongest for 1/2″ diameter holes; verify exact engine models before replacing.

  • Best for small maintenance cycles
  • Choose this if you have multiple brands needing a common size

QUASION Fuel Tank Grommet Bushing 12-Pack


QUASION Fuel Tank Grommet Bushing 12-Pack

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Selected for its broad compatibility across engine brands and outdoor power equipment. The nitrile rubber material helps form a tight seal to prevent leaks and is designed for 1/2″ diameter tank holes. Best for buyers replacing grommets on multiple equipment types, including mowers, generators, and pressure washers. Caution: ethanol fuel limits apply; confirm fuel type before installation.

  • Best for multi-brand projects
  • Better for users who want a single pack across several machines

Welandya 6Pcs Fuel Tank Grommet Bushing


Welandya 6Pcs Fuel Tank Grommet Bushing

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six-pack option focuses on 13mm (33/64″) tank holes, making it a practical choice for machines that require this size. It lists compatibility with Cub Cad, Troy-Bilt, Toro Wheel Horse, Snapper, Tecumseh engines, and various generators and pressure washers. Best for a mid-volume repair kit. Limitation: verify the hole size on your tank to ensure a perfect seal.

  • Best for 13mm hole applications
  • Choose this if you need a compact, mid-size kit

HIPA 3-PCS Fuel Tank Rubber Grommet Bushing


HIPA 3-PCS Fuel Tank Rubber Grommet Bushing

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This 3-pack serves as a compact option for essential replacements on a range of equipment. It covers multiple part numbers and is compatible with Kohler, Tecumseh, Generac, Craftsman, Snapper, and Troy-Bilt engines. Best for quick, limited repairs without carrying a large spare inventory. Limitation: smaller pack size may require additional purchases for larger fleets.

  • Best for quick, targeted replacements
  • Better for single-machine maintenance kits

LETAYAR 4-Pack Fuel Tank Grommet Bushing


LETAYAR 4-Pack Fuel Tank Grommet Bushing

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Selected for direct replacement compatibility with common part numbers (46-6560, 104047, 735-0149, 935-0149) across popular brands. It also lists compatibility with Kohler and Tecumseh engines and multiple generator and pressure washer models. Best for users who want a straightforward, bulk replacement option with a few spare bushings. Limitation: verify exact model numbers to avoid mismatches.

  • Best for straightforward replacements
  • Choose this if your tooling aligns with the listed part numbers

Buying Guide

What size and fit matter?

Most fuel tank bushings for lawn equipment assume a 1/2″ diameter tank hole or a 13mm hole. Confirm the hole size on your tank before purchasing to ensure a proper seal and leak prevention. If possible, measure the inner diameter (I.D.), outer diameter (O.D.), and thickness (HT) of your current grommet.

Material and chemical compatibility

Look for nitrile rubber (NBR) grommets for resistance to gasoline and oil. Note ethanol compatibility; some grommets are not suitable for fuels with ethanol content above 10%. For generators and pressure washers running on mixed fuel, select a product explicitly marking ethanol compatibility.

Quantity vs. need

If you service several machines, a higher-piece pack (12 pieces) can reduce future replacements and inventory costs. For a single machine or a small fleet, smaller packs (3–6 pieces) may suffice without tying up budget in unused stock.

Brand and cross-compatibility

Choose brands that list compatibility with common engines (Kohler, Tecumseh) and popular mower models (MTD, Cub Cadet, Troy-Bilt, Toro). Cross-reference part numbers (46-6560, 104047, 735-0149, 935-0149, 33679) to ensure the new bushing matches your existing components.

Installation considerations

Replacement is typically a direct swap. Ensure the new grommet sits flush against the tank to form a proper seal. Avoid over-pressurizing the fuel system during reassembly, and inspect nearby hoses for any signs of wear.

Common limitations to expect

Some kits list wide compatibility but may not support all fuel types or engines. Ethanol content, tank shape, and mounting hardware variation can affect fit. If your tank uses a non-standard hole size, you may need a different grommet size or a specialty part.

Which kit should you choose?

  • Need many replacements across devices? Choose the 12-pack options (PEHUAP or QUASION).
  • Repairing a handful of devices? A 3-pack or 4-pack may be more economical (LETAYAR or HIPA).
  • Working with mixed brands and engines? Favor cross-compatible listings with Kohler/Tecumseh mentions.

FAQ

  1. Q: Are these grommets interchangeable across brands?
  2. A: Many are designed to be compatible with multiple brands and engine types, but always verify the exact part numbers and hole size for your equipment.
  3. Q: Can I use these with ethanol-fueled equipment?
  4. A: Some kits are not recommended for ethanol fuels above 10%. Check the product notes for ethanol compatibility before installation.
  5. Q: What is the typical hole size these grommets fit?
  6. A: Most are designed for a 1/2″ diameter (approximately 13mm) tank hole, but confirm the dimensions of your current grommet first.
  7. Q: How many grommets should I replace at once?
  8. A: If the current grommet is weathered or cracked, replacing it in a full set can prevent leaks on all related connections, especially on multi-equipment inventories.
  9. Q: Do these require any special tools to install?
  10. A: In most cases, no special tools are needed beyond basic hand tools to remove and install the tank adjoining hardware and hoses.
  11. Q: Will replacing the grommet fix a leaking fuel tank?
  12. A: Replacing a cracked or hardened grommet can seal the connection and prevent leaks when the rest of the fuel system is in good condition.