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A worn fuel tank bushing can turn a small maintenance issue into fuel seepage, hard cleanup, and extra downtime. The 124253 Fuel Tank Bushing is a two-piece rubber replacement pack made for selected Miller Bobcat 225 and Bobcat 250 diesel engine-driven welder models. This review helps you decide whether it is the right fit for your machine, your repair, and your maintenance kit. It looks like a practical buy when your model and part number match, but it is not a universal bushing for every Miller welder.
Quick Verdict
Rating: 8/10, Recommended with fit-check caveats
Best For: Miller Bobcat 225 and 250 owners who need a small fuel tank bushing replacement and can match the listed model compatibility.
Bottom Line: The 124253 Fuel Tank Bushing offers strong value because you get two NB-Rubber pieces for routine maintenance or a spare repair. The main tradeoff is limited compatibility, so you should verify your welder model, part number, and tank setup before ordering.
Key Takeaways
- The 124253 Fuel Tank Bushing is listed as a replacement bushing for selected Miller Bobcat 225 and Bobcat 250 diesel engine-driven welder models.
- The listed compatible model numbers include 903125, 903372, 902965, 903501, and 903040.
- The bushing material is listed as NB-Rubber, also known as nitrile butadiene rubber, which is commonly chosen for oil and fuel resistance.
- The two-piece package is useful when you want one replacement now and one spare for later maintenance.
- Fit matters more than price on this part. You should confirm your tank opening, welder model, and part number before installation.
| Specification | Detail |
|---|---|
| Product name | 124253 Fuel Tank Bushing |
| Product type | Fuel tank bushing replacement |
| Replacement part number | 124253 |
| Material | NB-Rubber / nitrile butadiene rubber, as listed |
| Count | 2 pieces per package |
| Compatible brand | Miller Electric machines, when the listed model and part number match |
| Listed compatibility | Selected Miller Bobcat 225 and Bobcat 250 diesel engine-driven welders |
| Listed model numbers | 903125, 903372, 902965, 903501, and 903040 |
| Best use | Replacing a worn, hardened, cracked, or leaking fuel tank bushing on a compatible welder |
| Package note | Small replacement part, easy to store in a welder maintenance kit |
| Safety note | Work only on a cool, powered-off machine and follow your welder manual for fuel-system service. |
What Is the 124253 Fuel Tank Bushing?
The 124253 Fuel Tank Bushing is a small rubber replacement part designed to sit at the fuel tank opening on compatible Miller Electric welder models. Its job is simple but important: it helps seal the connection point and reduce fuel seepage around the tank area.
This package includes two bushings. That gives you one part for the current repair and one spare for later, which makes sense if you depend on an older Bobcat welder for farm repairs, mobile service, shop work, or field use.
The listing describes the material as NB-Rubber. That detail matters because a fuel tank bushing sits in a harsh area where heat, fuel exposure, vibration, dirt, and age can harden or damage ordinary rubber over time.
Fit and Compatibility
Compatibility is the first thing to check before you buy this bushing. The listed fit includes selected Miller Bobcat 225 and Bobcat 250 diesel engine-driven welders, along with model numbers 903125, 903372, 902965, 903501, and 903040.
That focused fit is useful because a fuel tank bushing needs to seat correctly. A loose, oversized, or undersized bushing can cause leaks, poor sealing, or repeat maintenance. Before ordering, compare your welder model and existing part number with the listing details and your machine manual.
You should also confirm whether you need an aftermarket-compatible replacement or an OEM Miller part. This review covers the linked Amazon replacement listing, so do not assume OEM sourcing unless the current Amazon product page clearly states it at checkout.
Before You Buy: Do not treat this as a universal Miller welder bushing. Confirm your Bobcat model, listed model number, existing part number, and fuel tank setup before you install it.
Material Quality and Durability
The bushing uses NB-Rubber, also called nitrile butadiene rubber in many product descriptions. NBR is commonly used where rubber needs better resistance to oil, fuel, and chemical exposure than basic rubber.
That material choice supports this part’s job, but it does not make the bushing a fix for every fuel problem. A new bushing can help seal the tank opening when the old bushing is worn, but it cannot repair a cracked tank, damaged fuel line, bad cap, or loose fitting.
Durability also depends on installation quality. A clean tank opening, correct seating, and a matching part number matter more than force. If the bushing twists, pinches, or does not sit evenly, you may still see seepage after replacement.
| Feature | Listed Detail | Why It Matters |
|---|---|---|
| Material | NB-Rubber / NBR | Helps resist fuel, oil, and chemical exposure when the fit is correct. |
| Elasticity | Flexible rubber construction | Helps the bushing seat snugly in the tank opening. |
| Pack size | 2 pieces | Gives you a spare for later inspection or maintenance. |
| Fit focus | Part number 124253 and listed model compatibility | Reduces guesswork compared with a random hardware-store bushing. |
Who Should Buy It?
Best For
- You own a listed Miller Bobcat 225 or Bobcat 250 diesel welder model.
- You need a small replacement part to help address fuel seepage around the tank bushing area.
- You prefer a two-piece pack so you can keep one bushing as a spare.
Skip If
- Your welder model is not included in the compatibility list.
- You need an OEM-confirmed Miller part and cannot verify this replacement against your machine manual.
- Your fuel leak comes from a cracked tank, hose, cap, or fitting rather than the bushing area.
Installation and Fit
The installation process may be straightforward on a clean, accessible tank opening. On an older welder, hardened rubber, dirt, fuel residue, or a damaged old bushing can make removal slower.
Clean the surrounding surface before you fit the new bushing. A dirty tank opening can stop the rubber from seating evenly, which may cause the same leak you were trying to fix. If the old bushing breaks apart during removal, clear every loose piece before installing the replacement.
Do not force the bushing if the fit feels wrong. Forcing a rubber part into the wrong opening can damage the bushing, create a poor seal, or make later removal harder.
Pro Tip: Take a photo of the old bushing and fuel line position before removal. It gives you a quick reference when you install the new part.
Compatibility and Safety
Fuel-system work needs care, even when the part is small. Turn the welder off, let the engine cool, and work in a well-ventilated area away from sparks, flames, cigarettes, and hot surfaces.
If fuel is present around the tank, clean it safely before you continue. Keep absorbent material nearby, dispose of fuel-soaked waste properly, and follow your local safety rules for fuel cleanup.
Follow your welder manual for service steps and fuel-system warnings. If you are not comfortable working around fuel tanks, a qualified small-engine or welding-equipment technician is the safer choice.
How It Performs in Real Use
For Routine Welder Maintenance
This bushing is most useful as a maintenance replacement when the old rubber looks dry, stiff, cracked, swollen, or compressed. Replacing it before seepage becomes serious can help keep your welder cleaner and easier to service.
For Fuel Leak Troubleshooting
If fuel appears near the tank bushing area, this part may help when the old bushing is the source. Inspect nearby hoses, fittings, the tank surface, and the cap as well, because a new bushing will not solve a leak from another component.
For Field and Shop Use
Bobcat welders often work in dusty shops, outdoor jobsites, farms, and service trucks. The two-piece pack gives you a spare part that is easy to store in a maintenance drawer or service kit without taking much space.
For Long-Term Ownership
Rubber fuel-system parts can age from heat, fuel exposure, and vibration. Keeping a spare bushing on hand makes sense if you rely on an older compatible welder and want to reduce downtime during a simple repair.
How to Use It Correctly
Start by confirming that your welder is one of the listed compatible models. Then compare the old bushing with the replacement before installation. The shape, opening, and seating area should match closely.
Remove the old bushing carefully so you do not damage the tank opening. Clean the surface, seat the new bushing evenly, and check for any twisting, pinching, or uneven edges.
After installation, inspect for leaks before you return the machine to normal use. Start with a careful visual check, then monitor the area again after the welder has been moved or run under normal conditions.
Common Mistakes to Avoid
- Skipping the model check: A part number match matters because similar-looking bushings can have different sizes.
- Installing over dirt or residue: Fuel residue and debris can keep the rubber from sealing evenly.
- Blaming the bushing too soon: Check hoses, fittings, cap seals, and the tank surface before assuming the bushing is the only problem.
- Using force when fit feels wrong: A forced bushing can deform and leak even if it looks seated at first.
Pros and Cons
Pros
- Designed for selected Miller Bobcat 225 and Bobcat 250 diesel welder models.
- Part number 124253 makes fit checking easier than choosing a generic bushing.
- NB-Rubber material supports oil and chemical resistance.
- Two-piece package gives you one replacement and one spare.
- Small part is easy to store in a welder maintenance kit.
Cons
- Limited compatibility means it may not fit every Miller welder.
- Not a fix for leaks caused by the tank, hose, cap, or fittings.
- Older machines may require careful cleaning or extra patience during removal.
Is It Worth the Price?
The 124253 Fuel Tank Bushing looks like a strong value for the price if your welder matches the listed compatibility. You get two pieces, which helps if you want a spare for a future repair or manage more than one compatible machine.
The best value comes from reducing downtime and keeping a simple maintenance part on hand. This is especially useful for owners who depend on a Bobcat welder for shop work, farm repairs, mobile service, or jobsite use.
It is not the best fit if you are unsure about compatibility. In that case, compare your old part, check your welder manual, or ask a parts supplier before you order.
How It Compares to Alternatives
Compared with a generic rubber bushing from a hardware store, this part makes more sense when your welder matches the listed Miller Bobcat models and part number 124253. The model-specific fit is the main reason to choose it over a guess-and-fit option.
If you need factory-confirmed sourcing, an OEM Miller replacement part from a welding-equipment supplier is worth comparing. If you only need an emergency temporary fix, a generic bushing may seem easier to find, but the risk of poor fit is higher.
Frequently Asked Questions
Will the 124253 Fuel Tank Bushing fit every Miller Bobcat welder?
No. The listed compatibility includes selected Miller Bobcat 225 and Bobcat 250 diesel engine-driven welders, plus specific model numbers. Check your machine before buying because a fuel tank bushing must fit correctly to seal well.
What comes in the package?
The package includes two fuel tank bushings. That gives you one part for the current repair and one spare for future maintenance, or two parts for multiple compatible machines.
What material is the bushing made from?
The listed material is NB-Rubber, also known as NBR or nitrile butadiene rubber. That material is commonly used where resistance to oil, fuel, and chemicals matters.
Is this an OEM Miller part?
Treat the linked Amazon item as a compatible replacement unless the current product page clearly states OEM sourcing. If you need a factory-confirmed Miller part, compare the listing with your manual or order through a welding-equipment parts supplier.
Do I need tools to install it?
Installation may be simple on a clean, accessible tank opening, but older parts can be harder to remove. You may need basic hand tools for removal, cleaning, or positioning, depending on your welder condition.
Can this bushing stop every fuel leak?
No. It can help when the leak comes from a worn or poorly sealed fuel tank bushing area. It will not repair a cracked tank, damaged fuel line, loose cap, or failing fitting.
Is it safe to use around diesel fuel?
The bushing is intended for listed diesel engine-driven welder models, and the material is described as oil and chemical resistant. Always follow your welder manual and basic fuel-system safety steps during installation.
How often should you replace a fuel tank bushing?
Replace it when you see cracks, hardening, poor fit, fuel seepage, or damage during inspection. Age, heat, fuel exposure, and vibration can shorten rubber part life, so routine checks help you catch issues early.
The Bottom Line
The 124253 Fuel Tank Bushing is a practical buy for Miller Bobcat 225 and 250 owners who can confirm the listed fit and need a small fuel tank seal replacement. Its main strength is the two-piece NB-Rubber design, while its main limitation is compatibility. Skip it if your welder model or leak source does not match this part.
