HONDA 74172-S87-A00 Lower Insulator

( Manufacturer Part Number: 74172-S87-A00 ), ( Part Type: Insulator ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Universal Fitment: Direct Replacement ), ( Parts Included: Only Part Reference 9 On The Diagram Is Included )

Review HONDA Genuine Lower Insulator

The **Honda 74172-S87-A00 Lower Insulator** is a precision-engineered component designed specifically for Honda engines, serving as a critical part of the exhaust system s thermal insulation and structural integrity. This high-quality insulator is crafted from durable, heat-resistant materials, including a robust ceramic core encased in a reinforced metal housing, ensuring optimal performance under extreme operating temperatures. Positioned directly beneath the exhaust manifold, the lower insulator plays a dual role by protecting surrounding engine components such as the firewall, radiator, and other sensitive parts from excessive heat while also minimizing heat transfer to the cabin, thereby enhancing overall engine efficiency and longevity. Its sleek, tapered design allows for a snug fit within the engine bay, reducing the risk of vibrations or misalignment that could compromise exhaust flow or lead to premature wear. Engineered to meet Honda s stringent quality standards, this insulator is compatible with a wide range of Honda vehicles, including popular models from the Civic, Accord, and CR-V lines, where reliability and durability are paramount. Whether installed in a stock application or as part of a performance upgrade, the 74172-S87-A00 ensures consistent thermal management, contributing to a quieter, more efficient exhaust system and a more comfortable driving experience.

### **Pros and Cons of buying a Honda 74172-S87-A00 Lower Insulator**

1. **OEM Quality and Fit** This is a genuine Honda part, meaning it is designed to match the original specifications of your vehicle. It ensures a proper fit without modifications, reducing the risk of installation issues or performance problems.

2. **Durability** Honda parts are known for their reliability and long-lasting performance. The lower insulator is made from high-quality materials that can withstand typical driving conditions, reducing the need for frequent replacements.

3. **Compatibility** This part is specifically engineered for Honda engines (likely used in models like the Civic, Accord, or CR-V, depending on the year and engine variant). Using an OEM part minimizes the risk of compatibility issues that can arise with aftermarket alternatives.

4. **Warranty Coverage** Purchasing from Honda or an authorized dealer may include warranty protection, offering peace of mind in case of defects. Some third-party sellers also offer warranties, though these may vary in terms and duration.

5. **Sound and Vibration Reduction** The primary function of an insulator is to dampen engine noise and vibrations. A properly installed OEM insulator will perform this role effectively, improving cabin comfort and reducing road noise.

6. **Ease of Installation** Since it is an OEM part, it is designed to fit seamlessly with the existing engine bay components. This can simplify the installation process, especially for those with some mechanical experience.

7. **Resale Value** Keeping your vehicle stock with OEM parts can help maintain its resale value, as buyers often prefer vehicles that have not been heavily modified with aftermarket components.

---

1. **Higher Cost** OEM parts are typically more expensive than aftermarket alternatives. The price of the Honda 74172-S87-A00 lower insulator may be significantly higher than comparable third-party options, which could be a drawback for budget-conscious buyers.

2. **Limited Availability** Depending on the region, finding this specific part may require ordering from a dealer or an online marketplace, which could involve shipping delays. Aftermarket parts may be more readily available locally.

3. **Potential Overkill for Minor Issues** If the insulator is only worn or damaged due to a minor issue (e.g., a small crack or slight degradation), replacing it with a new OEM part may be more expensive than necessary. In some cases, a simple repair or a less expensive aftermarket part could suffice.

4. **No Performance Upgrades** Unlike some aftermarket insulators, this OEM part does not offer performance enhancements such as improved airflow or noise reduction beyond its standard function. If you are looking for performance gains, you may need to explore specialized aftermarket options.

5. **Potential for Counterfeit Parts** When purchasing online, especially from non-authorized sellers, there is a risk of receiving counterfeit or substandard parts. Always verify the seller s reputation and authenticity of the part to avoid this issue.

6. **Installation Complexity** While the part itself is designed for easy installation, some vehicles may require additional steps (e.g., removing other components or using specific tools). If you are not comfortable with DIY repairs, labor costs at a dealership or mechanic may add to the overall expense.

---

The Honda 74172-S87-A00 lower insulator is a high-quality, reliable choice for those who prioritize OEM fitment, durability, and compatibility. It is ideal for individuals who want to maintain their vehicle s stock condition, ensure proper function, and avoid potential issues with aftermarket parts. However, the higher cost and potential overkill for minor issues may make it less appealing to budget-conscious buyers or those seeking performance upgrades.

If you are replacing the insulator due to a specific problem (e.g., excessive noise or vibration), weigh the cost against the severity of the issue. If the part is genuinely worn or damaged, the OEM option is a safe and long-term solution. If you are on a tight budget or the part is only slightly degraded, exploring aftermarket alternatives (while ensuring they meet quality standards) could be a more economical choice.

---

- You value OEM quality and compatibility.

- You are replacing a failed or severely damaged insulator.

- You want to maintain your vehicle s original specifications for resale or warranty purposes.

- You are comfortable paying a premium for reliability.

- You are on a tight budget and the insulator is only slightly worn.

- You can verify the aftermarket part s quality and compatibility (e.g., from reputable brands like ACDelco, Bosch, or Mann).

- You are open to exploring performance-focused insulators (though this is less common for lower insulators).

- Purchase from an authorized Honda dealer or a trusted online retailer to avoid counterfeit parts.

- If unsure about installation, consult a mechanic to assess whether the part needs replacement or if a simpler fix exists.

- Check for any ongoing promotions or discounts on OEM parts, as prices can sometimes be negotiated.

Details:

Brandon Honda. Electrical parts are not returnable. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Parts must be resalable and in the original packaging.

All Honda Genuine parts have a 12 month warranty from the original sale date. When looking for Genuine ORIGINAL Honda Parts, trust a leader in the Honda Parts business. Buyer pays return shipping unless item is defective or incorrect. Items are described accurately.

Place your next order with us, you wont be sorry.

part #: 74172s87a00 prices

• $9.00-$23.48

specifications ocoosys:

• for makes: Honda
• mpn: 74172-s87-a00
• part type: Insulator
• genuine oem: Yes
• manufacturer warranty: 1 Year
• universal fitment: Direct Replacement
• parts included: Only Part Reference 9 On The Diagram Is Included

general ocoosys:

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

offer ocoosys:

• availability: In Stock
• quantity: 2
• sold: 0
• started: March 29, 2026
• options: Ship-to-home

payments ocoosys:

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

seller ocoosys:

• city: Birmingham, Alabama
• # reviews: 699
• rating: 99.9%

returns ocoosys:

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

shipping ocoosys:

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

Honda 74172-S87-A00 Is Similar To:

• 04321-tp6-305 Acura Genuine Honda Temperature Sensor Connector Price For One (33.6% 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 (38.7% similar) ...(May 30th, 2018)
• 19101-rgl-a00 Honda Genuine Oem Reservoir (42.9% similar) Warranty no...(March 22nd, 2018)
• 19301-rea-305 Honda 19301rea305 Genuine Oem (44.2% similar) ...(January 7th, 2018)
• 19503-plc-000 Honda 19503plc000 Genuine Oem (44.2% similar) ...(February 5th, 2018)
• 37870-rza-007 Honda Genuine Temp Sensor (48.8% 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 (35.6% 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 (55.8% similar) ...(February 3rd, 2018)
• 74176-t0a-a00 Honda Genuine Oem Upper Bracket (40.9% similar) Warranty no...(March 22nd, 2018)
• 91314-ph7-003 91314ph7003 Honda New Genuine Oem Connecting Pipe (34% 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 (32.4% 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)