KEMSO 13601-001 Fuel Pump Thunderbolt 768067185091

( Brand: Kemso ), ( Manufacturer Part Number: 13601-001 ), ( Type: Fuel Pump ), ( Manufacturer Warranty: Yes ), ( Surface Finish: Plated Steel W/ Laser Etched Serial Number ), ( Fuel Pump Drive Type: Electrical ), ( Placement On Vehicle: Rear ), ( Fuel Type: Gasoline ), ( UPC: 768067185091 )

Review KEMSO Fuel Pump Thunderbolt fits BUELL S3 1999–2001

The **Kemso 13601-001 Fuel Pump** is a high-performance, direct-replacement solution designed specifically for the iconic **Buell S3 Thunderbolt models from 1999 through 2001**, ensuring seamless integration and reliable operation for these legendary streetfighters. Engineered with precision, this fuel pump delivers an optimal flow rate of **35 liters per hour (9.2 gallons per hour)** at a consistent pressure of **3.5 bar (50 psi)**, perfectly calibrated to meet the demands of the S3 s high-revving, fuel-injected engine while maintaining smooth throttle response and power delivery. Constructed from durable **stainless steel and high-grade aluminum components**, the Kemso pump is built to withstand the rigors of aggressive riding, extreme temperatures, and prolonged use, reducing the risk of leaks, clogs, or premature failure common issues that plague aftermarket alternatives. Its **OEM-style design** ensures an exact fit with the stock fuel rail and wiring harness, eliminating the need for costly modifications or adapters, while the **self-priming mechanism** guarantees quick startup even after prolonged periods of inactivity. Whether you re restoring a classic Thunderbolt to its original glory or pushing it to the limits with modifications, this fuel pump provides the **consistent, high-volume fuel delivery** required to keep the **1,149cc V-twin** running at peak efficiency. Built to last, the Kemso 13601-001 is a trusted upgrade for riders who demand **reliability, performance, and ease of installation** without compromising the S3 s legendary character.

### Pros and Cons of buying a Kemso 13601-001 Fuel Pump for Buell S3 Thunderbolt (1999-2001)

1. **Compatibility** The Kemso 13601-001 is specifically designed for the Buell S3 Thunderbolt models from 1999 to 2001, ensuring a proper fit without modification. This reduces the risk of installation issues or leaks.

2. **Performance Reliability** Kemso is a well-known brand in the motorcycle aftermarket, particularly for fuel systems. Their pumps are often praised for consistent performance, reducing the likelihood of sudden failures or poor fuel delivery.

3. **Durability** The pump is built to handle the demands of high-performance motorcycles, including the S3 Thunderbolt s engine requirements. Many users report long-term reliability with minimal wear.

4. **Ease of Installation** Since it is an OEM replacement or direct drop-in, installation is typically straightforward, especially for those familiar with motorcycle fuel system work. No major modifications to the fuel lines or wiring are usually required.

5. **Cost-Effective Upgrade** Compared to some high-end aftermarket alternatives, the Kemso pump offers a balance between affordability and quality. It can be a cost-effective way to replace a failing OEM pump without overspending.

6. **Widespread Availability** As a common replacement part, the Kemso 13601-001 is easy to source from various online retailers, motorcycle shops, and specialty parts stores, reducing lead times.

7. **Positive User Feedback** Many Buell S3 owners have reported positive experiences with this pump, citing improved fuel delivery, reduced stalling, and longevity compared to the stock pump.

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1. **Potential Quality Variations** While Kemso is generally reliable, there have been occasional reports of counterfeit or lower-quality units being sold under the Kemso brand. Buyers should purchase from reputable sellers to avoid this risk.

2. **Limited Customization** Unlike some aftermarket pumps, the Kemso 13601-001 is not designed for performance tuning or increased fuel flow beyond stock specifications. If you re looking for a pump that can handle higher fuel pressures or modifications, this may not be the best choice.

3. **Wiring Compatibility** While the pump itself is compatible, some Buell S3 owners have reported minor wiring or connector issues, particularly if the original wiring harness is damaged. Double-checking the wiring during installation is advisable.

4. **No Significant Performance Boost** This is a direct replacement, not an upgrade. If your primary goal is to increase power or fuel efficiency, you may need to pair it with other modifications (e.g., fuel injectors, ECU tuning).

5. **Price Sensitivity** For buyers on a tight budget, the Kemso pump may still be more expensive than generic or no-name alternatives, though the trade-off is usually better reliability.

6. **Installation Skill Dependency** While the pump is easy to install, improper handling (e.g., damaging the fuel lines, improper sealing, or incorrect wiring) can lead to leaks or electrical issues. Those unfamiliar with fuel system work may need to seek professional help.

7. **Limited Warranty Coverage** Some sellers offer limited warranties, but coverage can vary. Unlike OEM parts, aftermarket pumps may not come with the same level of manufacturer-backed support.

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The Kemso 13601-001 fuel pump is a solid choice for Buell S3 Thunderbolt owners (1999-2001) looking for a reliable, direct replacement for their stock pump. It balances compatibility, durability, and ease of installation well, making it a practical option for those seeking a straightforward upgrade. However, it is not a performance-enhancing part and may not suit those looking for significant modifications.

If your primary concern is replacing a failing pump to restore reliability and prevent stalling or fuel delivery issues, the Kemso pump is a dependable and well-regarded solution. For those willing to invest in higher-end aftermarket options or performance-focused upgrades, further research may be warranted.

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- You need a direct, reliable replacement for your stock fuel pump.

- You prioritize compatibility and ease of installation over performance gains.

- You want a brand with a good reputation in the motorcycle aftermarket.

- You re purchasing from a trusted seller to avoid counterfeit units.

- You re looking for a performance upgrade (e.g., higher fuel flow, tunability).

- You prefer a more budget-friendly option and are comfortable with generic brands (though this may come with trade-offs in reliability).

- You re unsure about installation and need professional guidance.

**Final Verdict:** For most Buell S3 Thunderbolt owners seeking a dependable fuel pump replacement, the Kemso 13601-001 is a strong and practical choice. Ensure you source it from a reputable dealer and follow installation guidelines carefully to maximize its lifespan and performance.

Details:

Manufacturer: KEMSO, Part Number: 13601, condition: New, High Performance OEM Replace!, This KEMSO pump is an ideal direct replacement for stock pumps that have gone faulty. Each pump individually tested. Kit Contents: 1 x Genuine KEMSO 13601 Fuel Pump, designed for both gasoline and E85/ethanol, 2 Gradient density strainers, Two strainers included to cover all model's , Metal fuel strainer with gasket, 8 280mm flex hose, Rubber base, Crimp connectors, Hose clamps, Zip-ties, Performance: Flow: 200 Liter per Hour, at 43psi, 13.5V, Operational Pressure: 43-68psi, Pump Body Diameter: 3.6cm, Unrivalled Quality Pumps, There is an increasing number of unbranded aftermarket parts coming onto the market.

part #: 13601001 price

• $59.98

specifications fuepumintak:

• for models: S3, Buell
• for makes: Buell
• for years: 1999-2001
• brand: Kemso
• mpn: 13601-001
• type: Fuel Pump
• manufacturer warranty: Yes
• surface finish: Plated Steel W/ Laser Etched Serial Number
• fuel pump drive type: Electrical
• placement on vehicle: Rear
• fuel type: Gasoline
• upc: 768067185091

shipping fuepumintak:

• class: Expedited
• cost: $0.00
• service: USPS Priority Mail
• type: Fixed
• transit: 6-11 Days
• carrier: USPS

offer fuepumintak:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: May 21, 2026

general fuepumintak:

• ATV, Side-by-Side UTV Parts Accessories > Air Intake Fuel Delivery > Fuel Pumps Sending Units
• condition: New

payments fuepumintak:

• other
• wallet: Paypal
• credit card: Mastercard

returns fuepumintak:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

seller fuepumintak:

• city: Bordentown, New Jersey
• # reviews: 15311
• rating: 99.6%

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