HONDA 7705494 Rear Cylinder Head 3.5L

( Manufacturer Part Number: 7705494 ), ( Part Type: Cylinder Head ), ( Id: 2a6d8915-8178-4ddb-9e64-8ba88bde951e ), ( Interchange: 306-59373 )

Review HONDA Rear Cylinder Head Assembly Oem 3.5l fits ODYSSEY 2005–2006

The **Honda 7705494 Rear Cylinder Head (3.5L, V6, 2005 2006 Odyssey)** is a precision-engineered component designed to deliver optimal performance, reliability, and longevity for Honda s iconic minivan. Crafted from high-grade cast iron, this cylinder head is meticulously machined to exacting specifications to ensure seamless integration with the engine s combustion system. The head features a robust **intake and exhaust valve arrangement**, with precision-ground seats and guides that promote efficient airflow and minimize wear over time. The **spark plug holes** are strategically positioned for optimal ignition distribution, while the **camshaft lobes** are finely balanced to synchronize valve timing, enhancing both power delivery and fuel efficiency. This cylinder head is equipped with **high-quality gaskets and sealing surfaces**, including a durable **rear main seal**, to prevent oil leaks and maintain engine integrity under high-temperature conditions. Whether replacing a worn or damaged head due to overheating, coolant leaks, or general wear, this genuine Honda part ensures a perfect fit with the **J35A2 engine**, delivering the same performance standards expected from Honda s legendary engineering. Built to withstand the demands of daily driving, this cylinder head is a critical component for restoring or maintaining the reliability of your 2005 2006 Odyssey, ensuring smooth operation and extended engine life.

### Pros and Cons of Buying a Used Honda 7705494 (2005-2006 Odyssey) 3.5L Rear Cylinder Head

1. **Reliability and Durability** Honda s 3.5L V6 engine (J35A) is known for its robustness, especially in the Odyssey, which is built for longevity. Many of these engines easily exceed 200,000 miles with proper maintenance.

2. **Proven Performance** The J35A engine is smooth-running, efficient, and capable of handling the Odyssey s towing and passenger loads without major issues if maintained.

3. **Availability of Parts** Being a Honda, parts (including the rear cylinder head) are widely available, both new and used, making repairs and replacements more accessible.

4. **Minor Wear Expected** A 2005-2006 Odyssey with a used rear cylinder head is likely being sold because of wear rather than a catastrophic failure. This suggests the engine may still have significant life left if the head is in decent condition.

5. **Potential Cost Savings** Buying a used part (especially if it s been rebuilt or inspected) can be significantly cheaper than a new OEM or aftermarket replacement, saving hundreds of dollars.

6. **Compatibility** The 7705494 part number is a direct fit for the 2005-2006 Odyssey s 3.5L engine, ensuring no modifications are needed for installation.

7. **Potential for Long-Term Use** If the rest of the engine is in good shape, replacing just the rear cylinder head can extend the life of the vehicle without requiring a full engine swap.

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1. **Age and Mileage Unknown** Without a full inspection or service history, you don t know how much wear the rest of the engine components (valves, seals, bearings, etc.) have undergone. A rear cylinder head failure can sometimes indicate other underlying issues.

2. **Potential for Hidden Damage** Cylinder heads can crack, warp, or develop leaks (especially around the gaskets or bolts) over time. If the head was not properly inspected or rebuilt, it may fail prematurely again.

3. **Labor Costs** Replacing a cylinder head is a labor-intensive job, often requiring removal of the engine components above it (intake manifold, valves, etc.). If the engine is already partially disassembled, labor costs could be high.

4. **Risk of Counterfeit or Poor-Quality Parts** If purchasing from an untrusted source, there s a chance the part may be a knockoff, rebuilt poorly, or even salvaged from an unknown source, leading to future problems.

5. **Warranty Limitations** Used parts typically come with no warranty, meaning if the head fails shortly after installation, you ll be responsible for the cost of replacement or repair.

6. **Compatibility with Other Issues** If the Odyssey has other neglected maintenance items (timing belt, water pump, serpentine belt, etc.), replacing just the cylinder head won t address those, potentially leading to further failures down the line.

7. **Market Value Depreciation** Older Odysseys (especially with higher mileage) may not hold value well, and if you later decide to sell, the vehicle s overall condition could limit resale potential.

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Buying a used Honda 7705494 rear cylinder head for a 2005-2006 Odyssey can be a cost-effective solution if you re confident in the rest of the engine s condition. The J35A engine is reliable, and a properly inspected or rebuilt head can extend the life of your vehicle. However, the risks include unknown engine wear, potential hidden damage, and the labor-intensive nature of the installation. If you re mechanically inclined or have access to a trusted mechanic for inspection, this could be a smart purchase. If not, it may be safer to invest in a new or remanufactured part to avoid future headaches.

1. **Inspect the Part Thoroughly** If possible, request documentation proving the head was professionally rebuilt or inspected. Look for signs of cracking, warping, or corrosion.

2. **Check Engine Condition** Have a mechanic inspect the rest of the engine (valves, seals, bearings, timing components) to ensure no other issues exist.

3. **Consider a Remanufactured Part** If budget allows, a remanufactured cylinder head from a reputable supplier (like Honda or a trusted aftermarket brand) may offer better long-term reliability than a used part.

4. **Budget for Labor** Factor in the cost of professional installation, as DIY cylinder head replacement is complex and time-consuming.

5. **Verify Source** Purchase from a trusted seller (e.g., a junkyard with inspection reports, an auto parts store, or a mechanic you trust) to avoid counterfeit or damaged parts.

If you re confident in the part s quality and the engine s overall health, the used cylinder head can be a practical and economical choice. Otherwise, prioritize a higher-quality replacement to avoid future engine issues.

Details:

HONDA ODYSSEY 05-06 3.5L, Touring, RH rear. Cylinder Head. This part will fit the following: HONDA ODYSSEY 05-06 3.5L, EX-L leather, RH rear. Search for more parts HONDA ODYSSEY.

part #: 7705494 price

• $391.88

specifications cylinderheapar:

• for models: Odyssey
• for makes: Honda
• for years: 2005-2006
• mpn: 7705494
• part type: Cylinder Head
• id: 2a6d8915-8178-4ddb-9e64-8ba88bde951e
• interchange: 306-59373

general cylinderheapar:

• condition: Used
• Car Truck Parts Accessories > Engines Engine Parts > Cylinder Heads

seller cylinderheapar:

• city: Brush, Colorado
• rating: 99.3%
• # reviews: 14268

payments cylinderheapar:

• other
• credit card: Visa
• wallet: Paypal

returns cylinderheapar:

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

shipping cylinderheapar:

• service: Standard
• type: Fixed
• transit: 2-7 Days
• class: Standard
• cost: $0.00

offer cylinderheapar:

• quantity: 1
• best offers: True
• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: February 11, 2026

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