1. Cylinder Heads & Parts Engines Components For Sale
  2. sku: 12002405739023722
  3. DODGE RL084587AA

DODGE RL084587AA Engine Motor Right Passenger Cylinder Head 3.7

fits model: Nitro. make: Dodge. year: 2007–2011.

Rl084587aa Dodge 07-11 Nitro 3.7 Engine Motor Right Passenger Side Cylinder Head

( Manufacturer Part Number: RL084587AA ), ( Interchange: 306-1934 ), ( Type: Cylinder Head ), ( Id: Aad244ad-15a5-44ae-b9d7-347878e545e3 ), ( Country Of Origin: United States )

Review DODGE 3.7 Engine Motor Right Passenger Side Cylinder Head fits NITRO 2007–2011

The **Dodge RL084587AA 07-11 Nitro 3.7L Engine Right Passenger Cylinder Head** is a precision-engineered component designed specifically for the high-performance 3.7L HEMI V8 found in the Dodge Nitro from model years 2007 through 2011. This cylinder head is a critical part of the engine s combustion system, responsible for housing the intake and exhaust valves, spark plugs, and valve springs, all of which work in tandem to deliver the powerful, torque-rich performance synonymous with the HEMI architecture. Crafted from high-grade cast iron, the head is engineered to withstand extreme heat and pressure, ensuring durability and reliability under the demanding conditions of aggressive driving, towing, or heavy-duty applications. The right passenger-side head features a unique valve cover design, optimized for airflow and cooling efficiency, while its integrated rocker arm assembly and pushrod guides maintain precise valve operation, minimizing wear and maximizing engine longevity. Whether replacing a worn or damaged head due to overheating, coolant leaks, or internal failure, this OEM-quality part guarantees a seamless fit with the engine bay s existing components, including the intake manifold, exhaust manifolds, and fuel injection system. Its compatibility with the Nitro s 3.7L HEMI engine paired with the 6-speed automatic transmission makes it an essential upgrade for restorers, performance enthusiasts, or mechanics seeking to restore factory specifications or enhance engine performance. With its robust construction and adherence to Chrysler s exacting standards, this cylinder head ensures that the Nitro s legendary power delivery remains intact, providing drivers with the confidence of a rebuilt, high-performance heart beneath the hood.

### Pros and Cons of Buying a Replacement Cylinder Head for a Dodge Nitro (3.7L Engine, Right Passenger Side, Model Years 2007-2011)

#### **Pros:**

1. **Reliability Improvement** A failing cylinder head can lead to catastrophic engine damage, such as overheating, coolant leaks, or compression loss. Replacing it ensures long-term engine health and prevents costly repairs down the line.

2. **Performance Stability** A properly functioning cylinder head maintains optimal compression and combustion efficiency, which can improve throttle response, fuel economy, and overall engine performance.

3. **Prevents Coolant Contamination** If the head gasket or head itself is cracked, coolant can mix with oil, leading to sludge buildup, reduced lubrication, and severe engine wear. Replacement eliminates this risk.

4. **Compatibility and Fit** The part you re considering (RL084587AA) is an OEM (original equipment manufacturer) or high-quality aftermarket replacement designed specifically for your engine, ensuring a proper fit and function.

5. **Warranty Coverage** If purchasing from a reputable dealer or manufacturer, the cylinder head may come with a warranty, providing peace of mind against defects.

6. **Prevents Further Damage** Ignoring head issues can lead to warped heads, blown head gaskets, or even engine failure. Replacing it now is a proactive measure to avoid a more expensive repair later.

7. **Potential for DIY Installation** While cylinder head replacement is labor-intensive, it can be done by experienced DIYers with the right tools and patience, saving on labor costs.

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#### **Cons:**

1. **High Cost** Replacement cylinder heads, especially OEM or high-quality aftermarket parts, can be expensive. Prices may range from $500 to $1,200 or more, depending on the source and whether labor is included.

2. **Labor-Intensive Installation** Removing and reinstalling a cylinder head requires disassembling much of the engine, including the intake manifold, valves, and other components. This often necessitates professional installation, adding to the total cost.

3. **Additional Costs** Beyond the cylinder head itself, you may need to replace:

- Head gaskets

- Valve seals

- Timing components (if applicable)

- Coolant hoses or radiator if leaks are present

- Gaskets for intake manifold, oil pan, or other related components

- Torque wrench and specialized tools (if not already owned)

4. **Risk of Damage During Removal/Installation** Improper handling can warp the head, damage threads, or bend valves, leading to further repairs. This risk is higher for DIYers without experience.

5. **Potential for Counterfeit or Low-Quality Parts** If purchasing from an untrusted source, there s a risk of receiving a substandard or counterfeit part that fails prematurely. Always buy from reputable suppliers.

6. **Downtime** The repair process can take several hours to a full day, depending on whether it s done professionally or as a DIY project. This means your vehicle will be out of commission.

7. **Diagnostic Uncertainty** If the original issue isn t properly diagnosed (e.g., misdiagnosing a head gasket leak as a cylinder head problem), you may end up replacing a good part unnecessarily.

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### **Conclusion:**

Replacing a failing cylinder head in your 2007-2011 Dodge Nitro with a 3.7L engine is a **necessary repair** if the head is cracked, warped, or leaking coolant. The long-term benefits such as preventing engine damage, improving performance, and ensuring reliability far outweigh the short-term costs and inconvenience. However, the expense and complexity of the job make it a significant undertaking, whether done professionally or as a DIY project.

If the cylinder head is confirmed faulty (through visual inspection, compression test, or coolant leak diagnosis), **proceeding with the replacement is highly recommended**. Delaying the repair could lead to far more expensive engine damage. If budget is a concern, prioritize the repair over other non-critical vehicle modifications.

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### **Recommendation:**

1. **Verify the Need** Confirm the cylinder head is indeed the source of the problem (e.g., coolant leaks, overheating, compression loss) before purchasing. Consult a mechanic for a proper diagnosis if unsure.

2. **Purchase from a Trusted Source** Buy the cylinder head (RL084587AA) from an authorized Dodge dealer, reputable aftermarket supplier (e.g., RockAuto, Summit Racing), or a well-reviewed online retailer. Avoid cheap knockoffs that may fail prematurely.

3. **Consider Professional Installation** Unless you have extensive mechanical experience, hiring a professional to handle the installation is advisable. This ensures proper sealing, torque specifications, and avoids common pitfalls like warping the head or damaging threads.

4. **Budget for Related Repairs** Allocate extra funds for gaskets, seals, and any additional components that may need replacement during the process. This prevents unexpected costs later.

5. **Follow Manufacturer Guidelines** Use the correct torque specifications and gasket materials (e.g., copper or non-metallic head gaskets) to ensure a proper seal. Refer to the Dodge service manual or consult the mechanic for exact procedures.

6. **Monitor Post-Repair Performance** After installation, watch for signs of leaks, overheating, or unusual noises. Address any issues promptly to ensure the repair was successful.

**Final Verdict:** **Buy and replace the cylinder head** if it s confirmed faulty. The long-term reliability and protection of your engine justify the cost and effort. If the repair is beyond your comfort level, trust it to a qualified mechanic to avoid costly mistakes.

Details:

This item is from a 11 DODGE NITRO. Over 6,000 vehicles in the yard and more arriving daily. Also, any tests that can possibly be done prior to installation should completed at time. If listing states free shipping, shipping is within the 48 only.

Cylinder Head. Redeliver, limited access fees. Model: DODGE NITRO. Local delivery available to local businesses only.

Over 600,000 parts on inventory.

part #: rl084587aa prices

  • $285.00-$1350.00

specifications cylinderheapar:

  • for models: Nitro
  • for makes: Dodge
  • for years: 2007-2011
  • mpn: Rl084587aa
  • interchange: 306-1934
  • type: Cylinder Head
  • id: Aad244ad-15a5-44ae-b9d7-347878e545e3
  • country of origin: United States

shipping cylinderheapar:

  • service: Standard
  • transit: 2-6 Days
  • class: Standard
  • type: Fixed
  • cost: $109.99

general cylinderheapar:

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

returns cylinderheapar:

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

payments cylinderheapar:

  • wallet: Apple-pay
  • credit card: Mastercard
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seller cylinderheapar:

  • # reviews: 33796
  • city: Cochranton, Pennsylvania
  • rating: 99.9%

offer cylinderheapar:

  • availability: In Stock
  • sold: 0
  • quantity: 1
  • started: April 28, 2026
  • options: Ship-to-home
for models: nitro, for makes: dodge, for years: 2007-2011, interchange: 306-1934, type: cylinder head, id: aad244ad-15a5-44ae-b9d7-347878e545e3, country of origin: united states,
category: auto parts > car truck parts accessories > engines engine parts > cylinder heads, sku: 12002405739023722,
Dodge RL084587AA Is Similar To:
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2 offers $285.00–$1350.00 USD
  • Used. Offer #1 priced at $285.00 + $145.00 shipping estimate = $430.00* total. Cylinder Head Model: DODGE NITRO.+$145.00 shipping
  • Used. Offer #2 priced at $1350.00 + $650.00 shipping estimate = $2000.00* total. This will indicate if the engine has been overheated. Model: DODGE DAKOTA.+$650.00 shipping

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