fits model: Xl250r, Xl250s. make: Honda. year: 1978–1983.

( Manufacturer Part Number: 15100-428-000 ), ( Part Type: Oil Pump ), ( Country Of Origin: Japan )
The **Honda 15100-428-000 oil pump** is a precision-engineered component designed exclusively for the **1978 1983 Honda XL250R and XL250S** models, ensuring optimal lubrication and longevity for the engine s critical moving parts. This direct-fit replacement pump is crafted from high-quality materials, including durable cast iron and hardened steel components, to withstand the demanding pressures and temperatures inherent in off-road and dual-sport applications. The internal design features a robust impeller and a sealed housing, which work in tandem to maintain consistent oil flow, reducing wear on the crankshaft bearings, camshaft journals, and other internal surfaces. Whether you re restoring a classic trail bike or maintaining a well-loved adventure machine, this oil pump is built to restore factory performance with minimal effort. Its compatibility with the XL250R s sportier handling and the XL250S s rugged reliability makes it an essential upgrade for riders seeking to preserve their engine s health over thousands of miles. The pump s straightforward installation requiring only basic tools and a bit of patience ensures that even DIY enthusiasts can complete the job with confidence. By choosing this genuine Honda part, you re not just replacing a worn component; you re investing in the same level of engineering excellence that made these bikes legendary in the first place.
### **Pros and Cons of buying a Honda 15100-428-000 Oil Pump (XL250R/XL250S, 1978 1983)**
#### **Pros:**1. **Direct Fitment** This oil pump is specifically designed for the 1978 1983 Honda XL250R and XL250S models, ensuring compatibility without modifications.
2. **Reliability** Honda parts are known for durability, and this oil pump is a genuine or high-quality aftermarket replacement, reducing the risk of failure.
3. **Prevents Engine Damage** A failing oil pump can lead to catastrophic engine damage due to lubrication failure. Replacing it proactively avoids costly repairs.
4. **Ease of Installation** The pump is designed to fit standard engine setups, and many mechanics or DIYers can install it with basic tools.
5. **Cost-Effective Long-Term Solution** While the upfront cost may seem high, replacing a failing pump is far cheaper than rebuilding or replacing an engine.
6. **Improved Performance** A properly functioning oil pump ensures consistent lubrication, reducing wear and improving engine longevity.
#### **Cons:**1. **Cost** The part itself is relatively expensive, especially if purchased new or from a reputable dealer. Used or aftermarket options may be cheaper but riskier.
2. **Labor Intensity** Replacing the oil pump requires removing the engine from the frame, which is a labor-intensive job for those without mechanical experience.
3. **Potential for Counterfeit Parts** If buying from an unknown seller, there s a risk of receiving a fake or low-quality replica, which could fail prematurely.
4. **Additional Wear Concerns** If the engine has significant internal wear (e.g., worn bearings or crankshaft), replacing just the pump may not fully resolve lubrication issues.
5. **Time-Consuming** The process of disassembly, pump replacement, and reassembly can take several hours, depending on the mechanic s skill level.
#### **Conclusion:**The **Honda 15100-428-000 oil pump** is a critical component for maintaining the health of your 1978 1983 XL250R/XL250S. While the cost and labor involved are significant drawbacks, the long-term benefits preventing engine failure, improving reliability, and extending the life of your bike far outweigh the drawbacks. If your bike is showing signs of oil pump failure (e.g., low oil pressure, unusual engine noise, or overheating), replacing it is a wise investment to avoid far more expensive repairs.
#### **Recommendation:**- **Buy from a trusted source** (Honda dealer, reputable aftermarket supplier, or a verified seller) to ensure authenticity.
- **Consider professional installation** if you lack mechanical experience, as improper installation can lead to further issues.
- **Inspect the engine** while the pump is out check for other signs of wear (e.g., bearings, seals) that may need attention.
- **Budget for labor** if doing it yourself, allocate enough time to complete the job correctly.
- **If unsure**, consult a Honda specialist to confirm whether the pump is the root cause of your engine issues before purchasing.
**Final Verdict:** If your bike s oil pump is failing, this is a necessary and cost-effective upgrade. Proceed with caution, prioritize quality, and ensure proper installation to maximize its lifespan.
Good working condition, HONDA 1978 XL250S A OIL PUMP: Honda XL250S a 1979 XR250 1980 1981 XR250R 1982 XL250R 1983 AC PUMP. Honda XL250S a 1979.