Every powersports ride eventually needs a replacement part. The tricky part is finding the one that matches your machine and your budget. Here, four different parts for Harley-Davidson EFI and carbureted motorcycles, plus a Suzuki ATV, show how prices, included pieces, and fitment can differ across the category.
Quick Take
The four parts here serve very different jobs. The MC400 Fuel Tool Fuel Check Valve Rebuild Kit targets Harley-Davidson EFI fuel valve service. The HiFlo Oil Filter HF173C handles a basic oil filter swap for several Harley Dyna and FXR models. The Carburetor Rebuild Kit for Suzuki LT-F250 2WD/4WD ATV is the only ATV-specific overhaul kit. The Black Throttle Thumb Tension Screw w/ Lever Kit is aimed at carbureted Harleys. Prices range from USD 14.95 to USD 106.99, so your choice should be driven by the repair you're tackling.
Price Comparison
| Product | Price | Price Bar | Focus |
|---|---|---|---|
| MC400 Fuel Tool Fuel Check Valve Rebuild Kit | USD 28.79 | Harley EFI fuel check valve service | |
| HiFlo Oil Filter HF173C | USD 14.95 | Harley-Davidson oil changes | |
| Carburetor Rebuild Kit for Suzuki LT-F250 2WD/4WD ATV | USD 106.99 | Suzuki LT-F250 carburetor rebuild | |
| Black Throttle Thumb Tension Screw w/ Lever Kit | USD 16.96 | Carbureted Harley throttle tension |
Decision Matrix
| If you need to... | Pick |
|---|---|
| Replace a fuel check valve on a 2001-2014 Harley EFI bike | MC400 Fuel Tool Fuel Check Valve Rebuild Kit |
| Change oil filter on a Harley Dyna or FXR model | HiFlo Oil Filter HF173C |
| Rebuild the carburetor on a Suzuki LT-F250 or LT-4WD 250 | Carburetor Rebuild Kit for Suzuki LT-F250 |
| Replace a throttle thumb tension screw on a carbureted Harley | Black Throttle Thumb Tension Screw w/ Lever Kit |
Product Notes
#### MC400 Fuel Tool Fuel Check Valve Rebuild Kit
This kit targets 2001-2014 Harley-Davidson EFI models and brings a full set of service pieces: 5 large and 5 small Viton O-rings, 5 stainless steel springs, 5 large and 5 small installation hooks, plus the MC-400 installation tool. The steel and silver build is designed to let you repair the fuel check valve without pulling the fuel tank, and the storage case keeps everything organized. The main limitation is fitment: it's for Harley EFI models from 2001-2014, so you'll want to confirm your specific bike falls inside that window. It also calls for checking the online installation video before proceeding.
#### HiFlo Oil Filter HF173C
If a straightforward oil filter is what you need, this HiFlo HF173C is the least expensive product in this comparison. It's in new other condition and is made in Thailand. The fitment list covers a range of Harley Dyna and FXR models, including the Dyna Super Glide, Dyna Wide Glide, and FXR 2/3/4. The trade-off is that it's not the entire Harley lineup, so you'll need to match your model against the listed applications. The new other condition also means you should look at the product photos closely before deciding if it's right for you.
#### Carburetor Rebuild Kit for Suzuki LT-F250 2WD/4WD ATV
This is the highest-priced product and the only one aimed at an ATV here. It's made for the Suzuki LT-F250 2WD and LT-4WD 250 Quad Runner from 1987 to 1989. The kit includes O-rings, gaskets, jets, needle, mixture screw, float bowl screws, and float valve needle and seat, with NBR rubber for ethanol resistance. One thing to plan around is that needle jet and other pressed-in jets are not included, so you may need to reuse or buy those separately. The kit is based on US model specifications, so if your machine is a non-US model, you'll need to use judgment during installation.
#### Black Throttle Thumb Tension Screw w/ Lever Kit
For carbureted Harleys, this black aluminum throttle thumb tension screw replaces OEM part numbers 56397-74C, 56394-74, and 3208. It's a brand-new kit with the lever, and fitment is listed for Harley models with a carburetor system. The main limitation is that it isn't for EFI models, and the size is shown in the product pictures, so you should compare it with your current throttle setup before ordering. The aluminum build keeps it light for a replacement part of this type.
Final Recommendation by Use Case
Before you buy, decide which system actually needs attention. If your Suzuki LT-F250 from 1987-1989 needs a carburetor overhaul, the Carburetor Rebuild Kit at USD 106.99 is the only product here that addresses that job. For a routine Harley-Davidson oil change, the HiFlo Oil Filter HF173C at USD 14.95 is the most direct and least expensive option. When your Harley EFI fuel check valve is acting up, the MC400 Kit at USD 28.79 provides the seals, springs, and tooling you'll need. And for a Harley with a worn throttle tension screw, the Black Throttle Thumb Tension Screw at USD 16.96 is the targeted replacement. Price alone won't decide this group-your specific bike and repair will.
