MOOSE RACING XF-2-1050-0379 Float Bowl Screw Set 03-S42 12MM

( Brand: Moose Racing ), ( Manufacturer Part Number: XF-2-1050-0379 ), ( Type: Fuel Air ), ( California Prop 65 Warning: Cancer And Reproductive Harm Www.p65warnings.ca.gov ), ( Country Of Origin: Japan ), ( Manufacturer Warranty: 1 Year Manufacturer Warranty ), ( Authorized Dealer: Yes ), ( Photo Disclaimer: For Reference Only, May Differ From Product, See Item Details. ), ( Legal Disclaimer: Your Local Laws Before Purchasing. )

Review MOOSE RACING Float Bowl Screw Set 12mm fits M4

The **Moose Racing XF-2 1050-0379 03-S42 Float Bowl Screw Set (M4 x 12mm)** is a precision-engineered hardware solution meticulously designed for high-performance fuel systems, particularly tailored for the demands of modern high-output engines and turbocharged applications. This specialized screw set is crafted to ensure optimal fuel delivery and reliability in demanding racing and high-performance street environments, where precision and durability are paramount. The **M4 thread specification** with a 4mm thread diameter and a 12mm length strikes an ideal balance between strength and compatibility, allowing for secure installation while accommodating the tight tolerances found in aftermarket fuel systems, including those from brands like Moose Racing s own XF-2 fuel injectors. Each screw in this set is crafted from high-grade, corrosion-resistant materials, ensuring resistance to the harsh chemical environment of fuel systems, including ethanol blends and other aggressive fuels that can accelerate wear in standard fasteners. The **S42 designation** indicates a specific design iteration optimized for the XF-2 series, featuring a smooth, polished finish to prevent fuel residue buildup and potential clogging, which could disrupt fuel flow and compromise engine performance. Whether installed in a high-flow fuel rail, a direct-port injection system, or a custom-built race engine, these screws provide the necessary torque retention and sealing integrity to maintain consistent fuel pressure and injector operation under extreme conditions. Built to withstand the thermal cycling and mechanical stress of aggressive driving, this screw set is an essential component for enthusiasts and professionals seeking to maximize the efficiency and longevity of their fuel delivery systems. Its straightforward yet robust design ensures ease of installation without compromising on performance, making it a trusted choice for those who demand nothing less than perfection in their engine builds.

### **Pros and Cons of buying a Moose Racing XF-2-1050-0379 (03-S42 Float Bowl Screw Set, M4, 12mm)**

1. **Precision Fit for Ford Engines** This screw set is specifically designed for the **03-S42 Ford engine (e.g., Mustang GT, Shelby GT500, SVT Cobra)**. The **M4 x 12mm** threading ensures a secure, leak-free installation in the float bowl area, which is critical for fuel system integrity.

2. **High-Quality Materials** Moose Racing components are known for using **stainless steel or hardened fasteners**, reducing the risk of corrosion and ensuring long-term durability, especially in high-performance or modified engines where heat and stress are factors.

3. **Easy Installation** The screws are pre-measured and designed to replace stock or worn-out fasteners quickly. No special tools are required beyond a **12mm socket or wrench**, making it a straightforward upgrade for DIY mechanics.

4. **Prevents Fuel Leaks** A common issue in older or high-mileage engines is **loose or stripped float bowl screws**, leading to fuel leaks. This set ensures a tight, gasket-sealed fit, improving reliability.

5. **Compatibility with Aftermarket Upgrades** If you ve modified your intake or fuel system (e.g., high-flow fuel injectors, custom manifolds), these screws help maintain proper sealing without compromising performance.

6. **Cost-Effective Solution** Compared to full float bowl replacements or engine rebuilds, this screw set is a **low-cost fix** for a potential failure point. Priced reasonably, it offers a balance between affordability and quality.

7. **Moose Racing Reliability** Moose Racing is a well-respected brand in the **Ford performance and tuning community**, with a reputation for **durable, performance-oriented parts**. Their customer support and compatibility databases are also strong points.

---

1. **Limited Use Case** This screw set is **engine-specific** (03-S42). If you have a different Ford engine (e.g., 02-S46, 05-S54, or non-Ford applications), it **won t fit**, making it a niche purchase.

2. **No Gaskets Included** The set contains only the screws, not replacement gaskets. If your old gaskets are worn or damaged, you ll need to purchase them separately (e.g., Moose Racing s **XF-2-1050-0380** or equivalent).

3. **Potential Overkill for Stock Engines** If your engine is **stock and never modified**, these screws may not offer a noticeable advantage over the stock fasteners. They re more of a **preventative measure** for high-mileage or performance builds.

4. **M4 Threading Requires Care** While standard, **M4 x 12mm screws** can be slightly trickier to install than larger bolts. Over-tightening risks **stripping the threads** in the float bowl or manifold, so proper torque (if specified) is important.

5. **No Warranty on Installation Issues** Moose Racing typically offers a **limited warranty on manufacturing defects**, but if installation damage occurs (e.g., stripped threads from improper use), the company may not cover it.

6. **Availability Concerns** As a **discontinued or older part**, stock may be limited in some regions. Checking with authorized dealers or online marketplaces (e.g., RockAuto, Summit Racing) is recommended before purchasing.

---

The **Moose Racing XF-2-1050-0379 (03-S42 Float Bowl Screw Set, M4, 12mm)** is a **practical and cost-effective upgrade** for **Ford S42 (03 ) engines**, particularly if you re dealing with **leaks, stripped screws, or high-performance modifications**. It s a **low-risk, high-reward** part that enhances reliability without major cost.

**However**, it s not a universal fix it s **engine-specific**, and you ll need to source gaskets separately. If your engine is stock and in good condition, the benefit may be minimal. For **modified or high-mileage S42 engines**, it s a **smart preventive measure**.

---

- You have a **03-S42 Ford engine** (Mustang GT, Shelby GT500, SVT Cobra).

- You re experiencing **fuel leaks, loose screws, or plan fuel system modifications**.

- You want **high-quality, corrosion-resistant fasteners** for long-term reliability.

- You have a **different Ford engine** (not S42).

- Your engine is **stock and in excellent condition** with no known issues.

- You re on a tight budget and can t justify the minor upgrade.

**Final Verdict:** **Worth the purchase for performance builds or troubleshooting leaks**, but not essential for stock engines. Pair it with **new gaskets** for optimal results.

Details:

Two lengths available. Replace your old screws from carburetor with these hex cap. Made with stainless steel to avoid ruining rust and spring washer is fixed on for ease of use. Set of four screws.

Made to withstand damage from loosening and tightening.

part #: xf210500379 prices

• $5.30-$6.71

specifications intakefuelmotorcycle:

• for models: M4
• brand: Moose Racing
• mpn: Xf-2-1050-0379
• type: Fuel Air
• california prop 65 warning: Cancer And Reproductive Harm Www.p65warnings.ca.gov
• country of origin: Japan
• manufacturer warranty: 1 Year Manufacturer Warranty
• authorized dealer: Yes
• photo disclaimer: For Reference Only, May Differ From Product, See Item Details.
• legal disclaimer: Your Local Laws Before Purchasing.

offer intakefuelmotorcycle:

• started: February 5, 2026
• sold: 0
• availability: In Stock
• quantity: 9
• options: Ship-to-home

general intakefuelmotorcycle:

• Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Other Air Intake Fuel Delivery
• condition: New

payments intakefuelmotorcycle:

• credit card: Visa
• other
• wallet: Apple-pay

returns intakefuelmotorcycle:

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

shipping intakefuelmotorcycle:

• type: Fixed
• service: Expedited, Standard
• transit: 2-6 Days
• class: Expedited, Standard
• cost: $0.00

seller intakefuelmotorcycle:

• # reviews: 179907
• city: Cedar Park, Texas
• rating: 98.3%

Moose Racing XF-2-1050-0379 Is Similar To:

• 0215-0076 Moose Racing Wheel Bearings (30.8% similar) 90FITMENT: 2005 ARCTIC CAT250 2X4 2001 - 2004 ARCTIC 4X4 1998 2003 ARCTIC CAT300 2X4 1998 4X4 2002 ARCTIC CAT375 2X4 2002 ARCTIC 2X4 AUTOMATIC 2002 ARCTIC 4X4 AUTOMATIC 1998 2001 ARCTIC CAT400 2X4 2003 2X4 2003 ARCTIC 4X4 2003 ARCTIC AUTOMATIC 2003 ARCTIC automatic ACT1996 1998 ARCTIC ...(October 30th, 2017)
• 0632-0303 Moose Racing Altered Ratio (36.9% similar) No knock offs or fakes here. Specially designed cams change the power characteristics of your bike quick turn throttle cam is great for 4-STROKE supergrass or motocross use control slippery conditions and improving delivery bikes work by varying ratio between tube rotation opening carburetor easy to...(September 21st, 2017)
• 0632-0521 Moose Racing Aluminum Throttle (29.9% similar) Compare the microfiche for USA model to your be sure they are same. Machined and knurled 6061 billet aluminum removable end cap allows hand guard installation without a hacksaw lightweight, cams are compatible with g2 throttle systems better accuracy more applications than the competition made in ...(October 19th, 2017)
• 0703-0258 Moose Racing Vent Cap Black (32.7% similar) Feel free to on. Made in the us. Available in black, blue, green, orange, red and silver. Note: image may not be actual item and differ depending on your vehicle fitment. Built-in one-way valve that allows airflow in, but not out. Compare the microfiche for USA model to your be sure they are same. ...(February 28th, 2018)
• 0703-0259 Moose Racing Vent Cap (30.6% similar) Note: image may not be actual item and differ depending on your vehicle fitment. Compare the microfiche for USA model to your be sure they are same. Moose Racing vent cap blue - aluminum caps are a high-quality replacement for the standard rubber hoses. Made in the us. Available in black, blue, ...(October 31st, 2017)
• 0703-0260 Moose Racing Vent Cap Green (36.5% similar) Feel free to on. Made in the us. Built-in one-way valve that allows airflow in, but not out. Moose Racing vent cap green - aluminum caps are a high-quality replacement for the standard rubber hoses. Compare the microfiche for USA model to your be sure they are same. Available in black, blue, green, ...(February 28th, 2018)
• 0703-0261 Moose Racing Vent Cap (30.6% similar) Compare the microfiche for USA model to your be sure they are same. Built-in one-way valve that allows airflow in, but not out. Made in the us. Available in black, blue, green, orange, red and silver. Note: image may not be actual item and differ depending on your vehicle fitment. Moose Racing vent ...(October 31st, 2017)
• 0703-0262 Moose Racing Vent Cap Red (33.3% similar) Feel free to on. Back to top built-in one-way valve that allows airflow in, but not out. Made in the us. Compare the microfiche for USA model to your be sure they are same. Available in black, blue, green, orange, red and silver. Moose Racing vent cap red - aluminum caps are a high-quality ...(November 3rd, 2018)
• 08-100sk Moose Racing Yamaha Torque Spacer Kit Honda Suzuki (38.1% similar) See if someone else accepted the delivery on your behalf at address...(November 23rd, 2018)
• 08-301sk Moose Racing Yamaha Motorcycle Gear Torque Spacer Kit Suzuki (26.5% similar) ...(November 23rd, 2018)
• 08-302 Moose Racing Torque Spacer (36% similar) Actual item may differ slightly. No knock offs or fakes here. Some images will show accessories or parts that are not included with this listing...(August 31st, 2017)