HONDA 71103-TS8-A50 Upper Duct

( Manufacturer Part Number: 71103-TS8-A50 ), ( Part Type: Duct ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Universal Fitment: Direct Replacement ), ( Year: 2014 2015 ), ( Parts Included: Only Part Reference 8 On The Diagram Is Included )

Review HONDA Genuine Upper Duct fits CIVIC 2014–2015

The **Honda 71103-TS8-A50 Upper Duct** is a precision-engineered component designed specifically for Honda s high-performance air-cooled engines, particularly those found in classic and modern motorcycles, ATVs, and power equipment. Crafted from durable, high-grade aluminum, this upper duct serves as a critical part of the engine s air-cooling system, ensuring optimal airflow to maintain engine temperature and performance under demanding conditions. Its sleek, aerodynamic design minimizes turbulence while maximizing efficiency, allowing hot air to escape smoothly from the cylinder head and engine bay. The duct features a secure, interference-fit connection with the engine s exhaust manifold and air-cooling housing, providing a tight seal that prevents leaks and maintains proper pressure within the cooling loop. This component is essential for preserving engine longevity by preventing overheating, especially during extended use or in high-temperature environments. Whether installed in a vintage Honda CB750, a modern CBR600RR, or a robust ATV like the Honda TRX250X, the 71103-TS8-A50 ensures reliable cooling performance, making it a must-have replacement for mechanics and enthusiasts seeking to restore or upgrade their Honda s cooling system. Its compatibility with Honda s original design standards guarantees a seamless fit, while its robust construction ensures durability against the rigors of daily use. For those maintaining or restoring a Honda-powered machine, this upper duct is an indispensable part of achieving peak cooling efficiency and engine reliability.

### **Pros and Cons of buying a Honda 71103-TS8-A50 Upper Duct**

The **Honda 71103-TS8-A50** is an upper intake duct (also called a plenum) used in Honda engines, particularly in models like the **K20Z3 (2005 2007 Accord, Civic, CR-V)** and **K24A2 (2006 2010 Accord, Civic, CR-V)**. Below is a detailed breakdown of its advantages and drawbacks.

---

### **Pros**

1. **OEM Quality and Fit**

- The part is manufactured by Honda, ensuring a precise fit with minimal modifications required. This reduces the risk of leaks or improper installation compared to aftermarket alternatives.

- Designed to work seamlessly with the engine s airflow system, maintaining factory performance characteristics.

2. **Reliability and Durability**

- Honda parts are known for their robustness and long-term reliability. The upper duct is made from high-quality materials (likely plastic or reinforced polymer) that can withstand engine heat and vibrations over time.

- Less prone to warping or cracking compared to cheaper aftermarket parts, especially in high-performance applications.

3. **Compatibility with Modifications**

- If you re running a **cold air intake (CAI), turbocharger, or supercharger**, this duct is a direct replacement for the stock part, allowing for a cleaner installation without compromising airflow.

- Works well with **intake manifold upgrades** (e.g., aluminum manifolds) without requiring extensive modifications.

4. **Ease of Installation**

- Designed to be a straightforward drop-in replacement. Most mechanics or DIY enthusiasts can install it without specialized tools.

- Comes with necessary gaskets or seals in some cases (verify with the seller), reducing the need for additional purchases.

5. **Maintenance and Repairs**

- If the duct fails, replacing it is relatively inexpensive compared to engine-related issues caused by poor airflow (e.g., carbon buildup, detonation).

- Easier to inspect and replace than internal components like intake manifolds or throttle bodies.

6. **Resale Value**

- Since it s an OEM part, it holds value better than generic aftermarket replacements. This can be useful if you plan to sell the vehicle later.

7. **Sound and Performance**

- A properly fitted upper duct ensures optimal airflow, which can improve throttle response and engine efficiency. Some drivers report a slight performance boost when paired with other intake upgrades.

---

### **Cons**

1. **Cost Compared to Aftermarket Options**

- The **71103-TS8-A50** is more expensive than many aftermarket alternatives (e.g., **K&N, AEM, or Spectre parts**), which may offer similar performance at a lower price.

- Prices can vary, but expect to pay **$80 $150** depending on the seller (eBay, Amazon, Honda dealers, or specialty shops).

2. **Limited Customization**

- Unlike aftermarket ducts, this part does not offer performance enhancements beyond OEM specifications. If you re looking for **aggressive airflow improvements**, you may need to pair it with other modifications (e.g., a high-flow throttle body).

- Some aftermarket ducts are designed to reduce restriction further, which this part does not provide.

3. **Potential for Counterfeit Parts**

- Buying from unverified sellers (especially online) risks receiving a **fake or low-quality replica**. Always purchase from reputable sources (Honda dealerships, authorized parts suppliers, or trusted eBay/Amazon sellers with positive reviews).

- Check for **part numbers, packaging, and manufacturer markings** to ensure authenticity.

4. **Weight Considerations**

- The plastic construction adds slight weight to the engine bay, though this is negligible in most applications. Some performance-focused builds prefer lighter aftermarket alternatives.

5. **Compatibility Issues with Non-Stock Engines**

- If your engine has been heavily modified (e.g., **big turbo, forced induction, or custom manifolds**), the OEM duct may not be ideal. Aftermarket ducts are often designed for specific performance builds.

- Always verify compatibility with your **engine displacement, intake setup, and manifold type**.

6. **Limited Availability**

- Unlike universal aftermarket parts, OEM Honda ducts may not be as widely stocked in local auto parts stores. You may need to order online, which could delay installation.

7. **Potential for Leaks Over Time**

- While durable, plastic ducts can develop **cracks or warping** if exposed to extreme heat or physical stress (e.g., from other components rubbing against it). Aftermarket metal or reinforced ducts may last longer in aggressive driving conditions.

---

### **Conclusion**

The **Honda 71103-TS8-A50 upper duct** is a **reliable, high-quality replacement** for stock parts, offering a **precise fit, durability, and ease of installation**. It is ideal for:

- **Stock or lightly modified engines** (e.g., CAI upgrades).

- **Drivers who prioritize OEM reliability** over aggressive performance gains.

- **Those who want a direct replacement** without worrying about compatibility issues.

However, if you re **building a high-performance engine** (e.g., turbocharged, supercharged, or with a high-flow intake), an **aftermarket duct** (e.g., from **AEM, Spectre, or K&N**) may provide better airflow at a lower cost. Aftermarket options also offer more customization for specific builds.

---

### **Recommendation**

- You need a **direct OEM replacement** for stock or minor modifications.

- You want **maximum reliability and compatibility** with your engine.

- You re on a **budget for performance upgrades** and don t need aggressive airflow improvements.

- You re installing it as part of a **cold air intake or basic intake upgrade**.

- You re running **forced induction (turbo/supercharger)** and need a high-flow duct.

- You want **lighter weight or better heat resistance** for aggressive driving.

- You re on a **tighter budget** and can find a similarly rated aftermarket part (e.g., **AEM 1000, Spectre 1000**).

- You plan to **modify the intake further** (e.g., with a high-flow throttle body).

1. **Verify the part number** matches your engine (e.g., **K20Z3 vs. K24A2**).

2. **Buy from a trusted seller** (Honda dealerships, **RockAuto, Summit Racing, or verified eBay/Amazon sellers**).

3. **Check for authenticity** (look for Honda branding, correct packaging, and seller reviews).

4. **Inspect for damage** before installation (cracks, warping, or missing gaskets).

5. **Pair with compatible modifications** (e.g., a **cold air intake filter** for best results).

For most **stock-to-moderately-modified Honda K-series engines**, the **71103-TS8-A50 is a solid choice** especially if you value **reliability and ease of installation**. If you re pushing the engine hard, an aftermarket duct may be worth the extra consideration.

Details:

Parts must be resalable and in the original packaging. Brandon Honda. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. When looking for Genuine ORIGINAL Honda Parts, trust a leader in the Honda Parts business.

Place your next order with us, you wont be sorry. Buyer pays return shipping unless item is defective or incorrect. Items are described accurately. All Honda Genuine parts have a 12 month warranty from the original sale date.

Electrical parts are not returnable.

part #: 71103ts8a50 prices

• $11.99-$36.53

specifications ocoosys:

• for models: Civic
• for makes: Honda
• for years: 2014-2015
• mpn: 71103-ts8-a50
• part type: Duct
• genuine oem: Yes
• manufacturer warranty: 1 Year
• universal fitment: Direct Replacement
• year: 2014 2015
• parts included: Only Part Reference 8 On The Diagram Is Included

shipping ocoosys:

• cost: $8.99
• service: Standard
• class: Standard
• type: Fixed
• transit: 4-10 Days

payments ocoosys:

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

general ocoosys:

• Car Truck Parts Accessories > Engine Cooling Components > Other Engine Cooling Components
• condition: New

offer ocoosys:

• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 1
• started: April 4, 2026

returns ocoosys:

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

seller ocoosys:

• city: Birmingham, Alabama
• rating: 99.7%
• # reviews: 754

Honda 71103-TS8-A50 Is Similar To:

• 04321-tp6-305 Acura Genuine Honda Temperature Sensor Connector Price For One (36.8% similar) New and genuine oem honda-aura ambient temperature sensor connector repair 3 is available fits many late model's aura honda will work with parts T2F-A01, RTA-005...(November 6th, 2018)
• 0l999-9011 Honda Gallon Genuine Long Life Blue Antifreeze Coolant Type Ships (33.3% similar) ...(May 30th, 2018)
• 19101-rgl-a00 Honda Genuine Oem Reservoir (40.5% similar) Warranty no...(March 22nd, 2018)
• 19301-rea-305 Honda 19301rea305 Genuine Oem (46.9% similar) ...(January 7th, 2018)
• 19503-plc-000 Honda 19503plc000 Genuine Oem (49.4% similar) ...(February 5th, 2018)
• 37870-rza-007 Honda Genuine Temp Sensor (41.6% similar) Many photos are stock. Electrical parts are not returnable. At radiator. Since plaza parts. Item appearance may vary slightly. Please understand that carriers can do get delayed due to unforeseen weather conditions and take this into consideration during the appropriate seasons. We combine the best ...(May 31st, 2018)
• 38513-sc4-672 38513sc4672 Honda Genuine Parts (37.6% similar) Note: these are all new genuine honda parts. Installs in seconds genuine oem honda product. A new cap will ensure your washer fluid stays inside the reservoir eliminating any chance of annoying leakage or spills. Made by honda motor co. Genuine honda windshield washer fluid reservoir bottle cap ...(January 16th, 2018)
• 74171-sna-a00 Honda 74171snaa00 Genuine Oem (54.3% similar) ...(February 3rd, 2018)
• 74176-t0a-a00 Honda Genuine Oem Upper Bracket (53% similar) Warranty no...(March 22nd, 2018)
• 91314-ph7-003 91314ph7003 Honda New Genuine Oem Connecting Pipe (37.6% similar) 75EM height : nook . Part info part no. Pang 0PX no-repeat margin: padding: border: outline: vertical-align: middle -style: italic position: relative display: inline-block width . 75EM height . 91314-PH7-003PART o-ring 31...(March 13th, 2018)
• 19540-rwc-a00 Acura Rdx Pipe Install Honda Genuine Engine Clamp Hose (30.2% similar) Aura DX pipe RWC-A00 honda genuine part. Condition is brand new. Aura DX pipe install honda genuine A/C engine clamp hose 2010...(July 10th, 2020)