DORMAN/AUTOGRADE 47300 Vacuum Tubing Connector 150099579 1/8

( Brand: Dorman/autograde ), ( Manufacturer Part Number: 47300 ), ( Part Type: Vacuum ), ( Country Of Origin: China ), ( Manufacturer Warranty: 1 Year ), ( Ipn: 150099579 )

Review DORMAN/AUTOGRADE 1/8 Inch Hard Vacuum Tubing Connector

The **Dorman/Autograde 47300 1/8" Vacuum Tubing Connector** is a high-quality, precision-engineered fitting designed to ensure reliable and leak-free performance in automotive vacuum systems. Crafted from durable, heat-resistant materials, this connector is built to withstand the demands of under-the-hood environments, where exposure to heat, vibration, and fluctuating pressures can compromise weaker components. The **1/8-inch diameter** design makes it a versatile choice for a wide range of applications, including intake manifold connections, brake booster linkages, carburetor or fuel injection system linkages, and other vacuum-operated components in both older and modern vehicles. Its **smooth, seamless construction** minimizes the risk of kinking or cracking, while the **reinforced ferrule** ensures a secure, tight seal when properly installed, preventing vacuum leaks that could lead to performance issues, reduced fuel efficiency, or even system malfunctions. The connector s **metallic body** provides excellent durability, resisting corrosion and wear over time, making it a long-lasting solution for DIY mechanics and professional technicians alike. Whether used in restoration projects, routine maintenance, or aftermarket modifications, this connector delivers the reliability and precision needed to maintain optimal vacuum system functionality. Its compatibility with standard 1/8-inch vacuum tubing ensures easy integration into existing setups, while its robust design guarantees a secure connection that holds up under normal operating conditions. For those seeking a dependable, no-frills solution for vacuum system repairs or upgrades, the Dorman/Autograde 47300 is an excellent choice backed by the trusted quality of the Dorman brand.

The **Dorman/Autograde 47300 1/8-inch vacuum tubing connector** is a common aftermarket part used for repairing or upgrading vacuum systems in vehicles. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Dorman/Autograde 47300 1/8-inch Vacuum Tubing Connector**

1. **Compatibility and Fit**

The Dorman/Autograde brand is widely trusted for aftermarket automotive parts, and this connector is designed to fit standard 1/8-inch vacuum systems found in many vehicles, including older models. It is often a direct replacement for OEM (Original Equipment Manufacturer) parts, reducing the need for modifications.

2. **Durability and Quality**

Dorman parts are generally made from durable materials, including rubber or silicone for the tubing and metal or plastic for the fittings. The connector is designed to withstand typical vacuum system pressures without leaking, which is crucial for proper brake, emissions, or engine vacuum operation.

3. **Ease of Installation**

The part is straightforward to install, requiring no special tools beyond basic hand tools. It typically features a push-fit or clamp-style design, making it easy to attach to existing vacuum lines without the need for soldering or complex fittings.

4. **Cost-Effective**

Compared to OEM parts, this connector is often significantly cheaper, making it an attractive option for budget-conscious consumers. It provides a reliable alternative without sacrificing performance.

5. **Wide Availability**

Dorman parts are sold through major auto parts retailers (e.g., AutoZone, O Reilly Auto Parts, RockAuto), making them easy to purchase online or in-store. This ensures quick access to replacements if needed.

6. **Compatibility with Common Vacuum Systems**

The 1/8-inch size is standard for many vacuum applications, including brake boosters, EGR valves, PCV systems, and intake manifold vacuum ports. This versatility means it can be used in a variety of repairs or upgrades.

7. **Reliability for Short-Term Use**

While not always the highest-end option, this connector is reliable for everyday driving and short-term use. It is less likely to fail suddenly compared to inferior or homemade alternatives.

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### **Cons of the Dorman/Autograde 47300 1/8-inch Vacuum Tubing Connector**

1. **Potential Quality Variations**

Like many aftermarket parts, the quality can vary depending on the specific batch or retailer. Some users report that cheaper versions may have weaker seals or brittle rubber, leading to leaks over time, especially in high-vibration or high-temperature environments.

2. **Limited Longevity in Harsh Conditions**

Vacuum systems in vehicles are exposed to heat, oil, and vibration. While this connector is durable for standard use, it may degrade faster in extreme conditions (e.g., high-performance engines, off-road vehicles, or areas with extreme temperatures). Over time, the rubber tubing or seals may crack or harden, requiring replacement.

3. **Not Ideal for High-Performance or Custom Systems**

For high-performance applications (e.g., forced induction, turbocharged engines, or custom vacuum hoses), this connector may not meet the same standards as specialized parts. High-performance systems often require reinforced tubing, better seals, or corrosion-resistant materials that this connector may not provide.

4. **Potential for Leaks Over Time**

Some users report that the rubber tubing or fittings can develop small leaks, particularly at the connection points. This can lead to vacuum loss, affecting brake booster performance or emissions systems. Regular inspection may be necessary.

5. **Limited Customization**

This is a standard connector with no customizable features (e.g., length, material, or special coatings). If you need a specific length or material (e.g., stainless steel for corrosion resistance), you may need to source a different part.

6. **Brand Reputation Inconsistencies**

While Dorman is generally reliable, some users have reported inconsistent quality across different product lines or retailers. It s always wise to check reviews or return policies before purchasing, especially for critical systems like brake boosters.

7. **May Not Match OEM Aesthetics**

For vehicles where appearance matters (e.g., classic cars or restomods), the aftermarket connector may not match the original design or finish. While functionality is not affected, some owners prefer OEM or high-end aftermarket parts for a seamless look.

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### **Conclusion**

The **Dorman/Autograde 47300 1/8-inch vacuum tubing connector** is a practical and cost-effective choice for basic vacuum system repairs or replacements in most passenger vehicles. It offers good compatibility, ease of installation, and reliability for everyday driving. However, it is not ideal for high-performance applications, extreme environments, or situations where long-term durability is critical. The part s quality can vary, so it s important to inspect it upon arrival and consider alternatives if leaks or durability issues arise.

For **standard vehicles and routine maintenance**, this connector is a solid and affordable option. For **high-performance, custom, or long-term critical applications**, investing in higher-quality or specialized vacuum tubing (e.g., stainless steel, reinforced rubber, or OEM parts) may be worth the extra cost.

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### **Recommendation**

- You need a quick, budget-friendly replacement for a standard vacuum system (e.g., brake booster, PCV, or EGR valve).

- The part is for a non-critical application where leaks are unlikely to cause immediate issues.

- You have no access to OEM parts or higher-end aftermarket alternatives.

- You plan to use it in a vehicle with typical driving conditions (e.g., daily commuting, light off-roading).

- You are working on a **high-performance or turbocharged engine**, where reinforced or stainless steel tubing is recommended.

- The vacuum system is **critical to safety** (e.g., brake booster) and you cannot afford leaks. In this case, opt for OEM parts or higher-quality aftermarket brands like **Hiflo, Flex-A-Lite, or Stainless Steel tubing**.

- You are restoring a **classic or high-end vehicle** where appearance matters, and you prefer OEM or premium aftermarket parts.

- You expect **long-term use in extreme conditions** (e.g., high heat, cold, or vibration), which may require more durable materials.

- Always inspect the connector for cracks, brittleness, or weak seals before installation.

- Use **vacuum grease or silicone sealant** on the fittings to ensure a tight seal and prevent leaks.

- If leaks persist, consider upgrading to **stainless steel tubing with proper clamps** or an OEM replacement.

- For critical systems (e.g., brake boosters), test the system thoroughly after installation to confirm there are no vacuum losses.

Details:

: Dorman manufactures a comprehensive selection of Vacuum and Emissions Fittings for almost any automotive job. Original packaging. Conveniently packaged in many different sizes, assortments and quantities.

SPECIFICATIONS: Color:White, Connector Shape:Straight, Material:Plastic, Outer Diameter In: 0.125 in, Package Contents:2 Vacuum Connector, Fitting Sizes Included: 2 1/8. The engine that powers us is our Culture of Contribution. Hard Vacuum Tubing Connector: Dorman 47300 1/8 X In. Placing an order outside the US is easy.

This is a rare combination in fast-growing, global enterprise that makes Dorman special place to work. ABOUT DORMAN PRODUCTS: Peoples lives and livelihoods depend upon cars trucks. Our engineers and designers go out of their way to save repair technicians time, vehicle owners money. Constructed from durable plastic or heat-resistant PVC Vinyl for a long service life.

Dorman gives people greater freedom to fix these vehicles by constantly developing new repair solutions that put owners and installers first. FEATURES: Available in a variety of shapes, including Straight, T-Shape, Y-Shape, F-Shape, and L-Shape. All accessories hardware. Depending on the application, available in either black or white.

Unknown: PRF-10B.

part #: 47300 prices

• $10.45-$28.10

specifications emissyste:

• brand: Dorman/autograde
• mpn: 47300
• part type: Vacuum
• country of origin: China
• manufacturer warranty: 1 Year
• ipn: 150099579

payments emissyste:

• other
• credit card: Discover
• wallet: Google-pay

offer emissyste:

• quantity: 10
• options: Ship-to-home
• started: April 22, 2026
• sold: 0
• availability: In Stock

returns emissyste:

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

general emissyste:

• condition: New
• Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts

shipping emissyste:

• cost: $0.00
• service: Standard
• class: Standard
• transit: 3-7 Days
• type: Fixed

seller emissyste:

• city: Miami, Florida
• # reviews: 164190
• rating: 99.6%

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