MERCEDES Passenger Right Cylinder Head 306-59002R C43 4.3L 100K

( Part Type: Cylinder Head ), ( Conditions Options: 4.3l Sohc Off Ready ), ( Genuine Oem: Yes ), ( Ipn: 306-59002r ), ( Placement: Passenger/right ), ( Manufacturer Warranty: 90 Day )

Review MERCEDES Oem Passenger Right Cylinder Head C43 4.3l 100k Miles fits C220 1998

The **306-59002R Passenger Side Cylinder Head** is a precision-engineered component designed exclusively for the **1998 Mercedes-Benz C43 AMG (W203) with the iconic 4.3-liter M119 inline-six engine**, a powerhouse renowned for its high-performance capabilities and legendary reliability. This cylinder head is a critical part of the engine s combustion system, responsible for housing the intake and exhaust valves, spark plugs (where applicable), and the valve train components, including the camshafts, rocker arms, and pushrods. Crafted from high-grade cast iron, the head is engineered to withstand the extreme pressures and temperatures generated by the aggressive power delivery of the M119 engine, which produces anywhere from **384 to 450 horsepower** depending on the specific model and tuning modifications. The **306-59002R** is a right-side head, meaning it is installed on the driver s side of the engine bay, and is fully compatible with the **AMG s high-flow intake and exhaust manifolds**, as well as the **variable valve timing (VVT) system** that enhances performance and efficiency. This component is essential for maintaining optimal combustion, ensuring smooth operation, and preventing issues such as overheating, valve float, or premature wear common concerns in high-revving engines like the C43 s. Whether you're restoring a classic AMG, upgrading an existing engine, or performing a full rebuild, this cylinder head is a direct-fit replacement, guaranteeing seamless integration with the **OEM 4.3L M119 engine block**, fuel injection system, and supporting hardware. Built to Mercedes-Benz s exacting standards, it delivers the durability and performance expected from one of the most celebrated engines in automotive history.

### **Pros and Cons of Buying a Used (306 59002R) Passenger-Side Cylinder Head for a 1998 Mercedes-Benz C43 (4.3L V8)**

1. **Compatibility and Fitment** The **306 59002R** is the correct part number for the passenger-side cylinder head on the **M117 4.3L V8** engine, ensuring a direct replacement without modification. This eliminates the risk of purchasing a wrong part, which can be costly and time-consuming.

2. **Performance Potential** If the head is in good condition, replacing a worn or leaking head can restore proper sealing, improve compression, and enhance engine efficiency. A properly rebuilt head can help prevent misfires, oil consumption, or exhaust leaks.

3. **Cost-Effective Alternative to New** Buying a used head is significantly cheaper than a new OEM part (which can cost **$1,200 $1,800 ** depending on the source). A well-maintained used head can save **50 70%** compared to a new one.

4. **Availability of Rebuilt Heads** Many specialty shops and online sellers (e.g., **RockAuto, eBay, or local Mercedes specialists**) offer rebuilt or remanufactured heads that come with warranties, ensuring reliability.

5. **Potential for Engine Upgrades** If you plan to modify the engine (e.g., forced induction, porting, or valve upgrades), a fresh head allows for better compatibility with aftermarket parts.

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- **Warped or cracked decks** (leading to poor sealing and compression loss).

- **Worn valve seats or guides** (causing leaks or excessive wear).

- **Internal corrosion** (common in older Mercedes engines due to coolant leaks).

- **Residual stress or improper machining** (if it was previously rebuilt poorly).

2. **Risk of Hidden Damage** Even if the head appears visually intact, internal components (e.g., **valve springs, retainers, or rocker arms**) may be worn out, requiring additional replacement costs.

3. **Compatibility with Other Engine Components** If the head was removed from a different engine (e.g., with different camshafts or lifters), it may not fit perfectly, leading to **valve float, excessive lash, or poor sealing**.

4. **Potential for Contamination** If the head was stored improperly, it could have **oil, coolant, or debris** inside, which may need cleaning before installation. Some used heads are sold "as-is," meaning you may have to disassemble and inspect them thoroughly.

5. **Warranty and Return Risks** Many private sellers do not offer warranties, and even reputable shops may have limited coverage. If the head fails shortly after installation, you may be stuck with repair costs.

- **Torque specifications** (critical to avoid warping).

- **Proper gasket application** (Mercedes uses **non-metallic gaskets** that must be treated carefully).

- **Valve adjustment** (the **M117 uses hydraulic lifters**, but valve lash must still be checked).

- **Coolant system bleeding** (to avoid airlocks).

If not done correctly, improper installation can lead to **leaks, overheating, or catastrophic failure**.

7. **Potential for Counterfeit or Salvage Parts** Some online listings may sell **non-genuine or salvaged** parts that don t meet Mercedes specifications, leading to compatibility issues.

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### **Key Considerations Before Purchase**

1. **Source Verification**

- **Best option:** Buy from a **reputable Mercedes specialist** or a shop that offers **warranty-backed rebuilt heads**.

- **Avoid:** Private sellers with no inspection reports or warranty.

- **Check for:** **Daimler-Parts.com, MBB, or trusted online marketplaces** that verify part authenticity.

2. **Inspection Requirements**

- **Visual inspection:** Look for **cracks, warping, or corrosion**.

- **Pressure test:** A **compression or leak-down test** should be done before purchase.

- **Internal check:** If possible, request a **dismantled inspection** of valves, seats, and guides.

- **Machining history:** Ask if the head has been **ported, polished, or re-machined** this can affect sealing.

3. **Compatibility Check**

- Ensure the head matches your **camshaft, lifter, and rocker arm** specifications.

- Confirm it s for the **passenger side** (left vs. right can differ slightly in some cases).

4. **Budget for Additional Costs**

- **Valves, seats, and guides** (if worn).

- **New gaskets and seals**.

- **Labor costs** (if not doing it yourself).

- **Coolant system flush** (after installation).

5. **Alternative Options**

- **Remanufactured OEM heads** (e.g., from **MBB or RockAuto**) often come with warranties.

- **Aftermarket heads** (e.g., **BorgWarner or Mahle**) may offer better performance but require validation for compatibility.

- **Renting a head** (some shops allow this for testing before buying).

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### **Final Recommendation**

**If you are experienced with engine work and can thoroughly inspect the head, buying a used 306 59002R passenger-side cylinder head can be a cost-effective solution especially if sourced from a trusted mechanic or specialty shop.**

**However, if you are unsure about the head s condition or lack the time/labor to properly install it, the risks (hidden damage, improper fitment, or installation errors) outweigh the benefits. In this case, consider:**

- **A warranty-backed remanufactured head** (slightly more expensive but reliable).

- **A new OEM head** (if budget allows, for peace of mind).

- **A professional inspection first** (some shops will test a used head before sale).

**For most average mechanics or DIYers, the safest and most practical choice is to invest in a **rebuilt or remanufactured head with a warranty** rather than taking the gamble on a used part. The long-term reliability and reduced risk of engine damage make it the better option, despite the higher upfront cost.**

Details:

It is ready to ship and comes with a 90 day warranty. Seat Belt Front Bench 40/20/40 Buckle Fits 09-14 FORD F150 PICKUP 2057364. For more parts from this vehicle. See below for fitment information and any notes pertaining to this specific part.

Year: 1998, model: C220, Stock #: OU5318, Mileage: 100000. Donor Vehicle. This part will only fit: MERCEDES C-CLASS 98-00 202 Type; C43, R.

specifications cylinderheapar:

• for models: C220
• for makes: Mercedes
• for years: 1998
• part type: Cylinder Head
• conditions options: 4.3l Sohc Off Ready
• genuine oem: Yes
• ipn: 306-59002r
• placement: Passenger/right
• manufacturer warranty: 90 Day

general cylinderheapar:

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

offer cylinderheapar:

• options: Ship-to-home
• availability: In Stock
• started: April 2, 2026
• sold: 0
• quantity: 1
• best offers: True

shipping cylinderheapar:

• class: Standard
• transit: 2-6 Days
• service: UPS Ground
• cost: $0.00
• type: Fixed
• carrier: UPS

returns cylinderheapar:

• policy: Returns Accepted
• paid by: Seller
• time: 60 Days

seller cylinderheapar:

• # reviews: 15679
• rating: 98.9%
• city: Toledo, Ohio

payments cylinderheapar:

• credit card: Visa
• other
• wallet: Paypal

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