MERCEDES Engine Cylinder Head Right Passenger 306-59621R Benz W213 4.0L

( Manufacturer Part Number: E63S ), ( Conditions Options: Rh, 4.0, With Valve Cover ), ( Genuine Oem: Yes ), ( Ipn: 306-59621r ), ( Placement: Passenger/right ), ( Make: Mercedes-benz ), ( Descriptionpartcondition: This Listing Is For A Used Cylinder Head Or Set Of Heads. Used He ), ( Type: Cylinder Head Assembly ), ( Partout Id: A-130091778 )

Review MERCEDES benz 4.0l Engine Cylinder Head Right Passenger fits E63S AMG 2018

The **Mercedes-Benz 306-59621R 18 AMG E63 S (W213) 4.0L Engine Cylinder Head (Right, Passenger Side)** is a meticulously engineered component designed exclusively for the high-performance AMG iteration of the legendary W213 E-Class, specifically the E63 S model. This cylinder head is a critical element of the iconic **M177 4.0L V8 engine**, renowned for its aggressive tuning potential, raw power delivery, and the signature AMG exhaust note that resonates through the cabin. Crafted from high-grade cast aluminum with precision machining, this right-side cylinder head features the distinctive **18-valve design** (four valves per cylinder) that enhances airflow efficiency, enabling the engine to breathe with unparalleled vigor. The **intake and exhaust ports** are optimized for high-revving performance, allowing the AMG s naturally aspirated V8 to achieve its legendary **400 horsepower** and **394 lb-ft of torque** with authority. The **passenger-side head** includes the **right-hand camshaft cover**, intake manifold mounting points, and the **E63 S-specific exhaust manifold attachment**, ensuring a seamless fit for both stock and modified applications. Whether installed in a factory AMG E63 S or integrated into a high-performance build, this cylinder head delivers the structural integrity and performance characteristics demanded by enthusiasts who seek the pinnacle of Mercedes-Benz AMG engineering. Its compatibility with aftermarket upgrades such as high-flow headers, aggressive camshafts, or forced induction makes it a foundational piece for those pushing the boundaries of this already formidable powerplant. Built to withstand the demands of aggressive driving, track use, or even mild turbocharging, this component embodies the perfect blend of Mercedes-Benz precision and AMG aggression, ensuring both reliability and exhilarating performance.

### **Pros and Cons of Buying a Mercedes-Benz W213 E63 S (4.0L Engine) Right Passenger Cylinder Head (Part Number: 59621R18)**

- The **E63 S (W213)** is a high-performance variant of the C204 engine, known for its **4.0L V8 biturbo** setup, producing around **585 600 hp** and **563 lb-ft of torque** in its most powerful forms.

- If the cylinder head has been **rebuilt or replaced properly**, it can restore power and efficiency, preventing leaks, misfires, or excessive oil consumption.

- A **genuine or high-quality aftermarket cylinder head** ensures proper sealing, valve operation, and cooling, which are critical for long-term engine health.

- Many W213 E63 S models suffer from **head gasket failures, warped heads, or worn valve seats** due to aggressive driving, high RPM use, or lack of maintenance.

- Replacing the **right passenger cylinder head** (which houses the intake valves, rocker arms, and combustion chamber) can **eliminate oil leaks, compression loss, and rough idling**, bringing the engine back to near-original performance.

- If you plan to **tune the engine (e.g., with a chip or forced induction)**, a fresh cylinder head ensures the engine can handle increased power without catastrophic failure.

- Some aftermarket heads (e.g., **Forge, JE, or custom machined**) offer **improved airflow and durability** compared to stock units.

- A failing cylinder head can lead to **severe engine damage**, including **warped blocks, blown head gaskets, or valve bridge failures** repairs for which can cost **$3,000 $6,000 **.

- Addressing the issue early (via a **new or remanufactured head**) is far cheaper than waiting for a full engine rebuild.

- If the car is **well-maintained with a fresh cylinder head**, it may appeal more to buyers looking for **reliable high-performance Mercedes**.

- Some collectors and enthusiasts prefer **restored E63 S models** over neglected ones.

---

- A **new OEM cylinder head (59621R18)** for a W213 can cost **$1,500 $2,500 **, depending on the supplier.

- **Remanufactured heads** (from companies like **Mercedes-Benz Reman, JE, or Forge**) are cheaper (**$800 $1,500**) but may not be as durable as new ones.

- **Labor costs** (if not DIY) can add **$500 $1,200**, depending on the shop s rates.

- The aftermarket is flooded with **fake or poorly made cylinder heads**, which can lead to **early failure, leaks, or poor sealing**.

- Always **verify the supplier s reputation** (e.g., **Forge, JE, or trusted Mercedes specialists**) to avoid cheap knockoffs.

- Removing the **intake manifold, turbochargers, and associated wiring**.

- **Machining the block deck** (if warped) for proper sealing.

- **Replacing head gaskets, bolts, and valve seals**.

- **Torquing bolts in the correct sequence** (critical for preventing warping).

- **DIY is possible but risky** mistakes can lead to **engine damage or leaks**.

- Even with a new head, **other components** (e.g., **turbochargers, intercoolers, or fuel injectors**) may be worn and require replacement.

- If the **engine block is warped or the crankshaft is damaged**, a new head alone won t fix the problem **a full rebuild may be needed**.

- The job can take **20 40 hours** of labor, depending on the mechanic s experience.

- Some shops may **subcontract** the work, increasing costs and wait times.

- If the **E63 S has other major issues** (e.g., **blown turbos, failed injectors, or a damaged crankshaft**), replacing just the cylinder head may not be enough.

- In such cases, a **full engine rebuild** (or even a **swap**) might be more cost-effective.

---

Replacing the **right passenger cylinder head (59621R18) in a W213 E63 S** is a **highly beneficial repair** if the engine is otherwise in decent condition. It **restores performance, prevents catastrophic failure, and can extend the engine s lifespan** especially if the car is used for **daily driving or track use**.

The **engine block is sound** (no warping, cracks, or crankshaft damage).

The **turbochargers, injectors, and fuel system** are in good shape.

You have **access to a reliable mechanic** (or are confident in DIY skills).

The **car is a project you plan to keep long-term** (not a quick flip).

If the **E63 S has multiple major issues**, prioritizing those first (e.g., **turbo replacement, fuel system upgrades**) may be more efficient before tackling the cylinder head.

---

- **Compression test results** (low compression head or valve issue).

- **Leak-down test** (to confirm valve/seat condition).

- **Block warpage** (requires machining if severe).

- **Turbo and fuel system health**.

- **OEM (Mercedes-Benz Reman)** Most reliable but expensive.

- **High-quality aftermarket (Forge, JE, or custom machined)** Good balance of cost and quality.

- **Avoid unknown suppliers** stick to reputable brands.

- **New head gaskets & bolts** (critical for sealing).

- **Valve seals & oil control rings** (if leaking).

- **Turbo upgrades** (if worn).

- **Fuel system cleaning or injector replacement**.

- If the **block is warped, the crankshaft is damaged, or the engine has high mileage (>150K miles)**, a **full rebuild** may be more cost-effective than just replacing the head.

- **DIY is possible** if you have **mechanical experience and proper tools**, but **mistakes can be costly**.

- **Professional installation** ensures **correct torque specs, gasket sealing, and valve adjustment**, reducing the risk of future issues.

- **If the E63 S is a beloved project car and the engine is mostly healthy**, replacing the cylinder head is a **wise investment** that will **restore power, reliability, and longevity**.

- **If the car is a daily driver with high mileage or multiple engine issues**, weigh the cost against **alternative solutions** (e.g., **engine swap, rebuild, or selling for parts**).

- **Proceed with a new/remanufactured cylinder head** if the engine is **otherwise sound**, and **budget for additional necessary repairs**.

- **Avoid cheap aftermarket parts** prioritize **Forge, JE, or OEM-quality** for long-term reliability.

- **If unsure, consult a Mercedes specialist** before purchasing to ensure the repair is justified.

Details:

No expedited shipping is available. Donor Vehicle model: E63S Year: 2018 Mileage: not available or unknown Stock Number: AE1218 Notes: RH, 4.0, WITH VALVE COVER THIS LISTING IS FOR A USED CYLINDER HEAD OR SET OF HEADS. MERCEDES C-CLASS 17 205 Type; C43, R. MERCEDES C-CLASS 16 205 Type; SD, C450, R.

MERCEDES CLS-CLASS 15-16 218 Type; CLS4 R.

part #: e63s prices

• $295.00-$899.99

specifications cylinderheapar:

• for models: E63s, Amg
• for makes: Mercedes
• for years: 2018
• mpn: E63s
• conditions options: Rh, 4.0, With Valve Cover
• genuine oem: Yes
• ipn: 306-59621r
• placement: Passenger/right
• make: Mercedes-benz
• descriptionpartcondition: This Listing Is For A Used Cylinder Head Or Set Of Heads. Used He
• type: Cylinder Head Assembly
• partout id: A-130091778

seller cylinderheapar:

• city: Richland, Mississippi
• rating: 99.9%
• # reviews: 66157

offer cylinderheapar:

• sold: 0
• best offers: True
• started: May 28, 2026
• availability: In Stock
• options: Ship-to-home
• quantity: 1

returns cylinderheapar:

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

general cylinderheapar:

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

shipping cylinderheapar:

• class: Standard
• type: Fixed
• service: UPS Ground
• cost: $175.00
• carrier: UPS
• transit: 4-7 Days

payments cylinderheapar:

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

Mercedes E63S Is Similar To:

• 000835008122 Mercedes-benz 000835 008122 Nos (29.9% similar) These parts came from an individual mercedes-benz aficionado whose inventory primarily covered 450SL W107 and 450SEL W116. The parts listed usually will have mercedes-benz packaging or part numbers on them. The parts are sold as is with no warranty and not returnable 122 exhaust manifold stud bolts ...(January 6th, 2018)
• 0231187001 1973 Mercedes Benz W114 W115 Bosch Distributor (30% similar) ...(October 17th, 2016)
• 104-990 Mercedes-benz Rare Mercedes 6 Cyl (35.5% similar) Rare mercedes cyl 24 valve engine head cover. Gears,chain,and upper cover included. Removed from 1993 300SE sedan was totaled great condition see pics.: I am closing my mercedes repair and selling cabinets tools, etc. Local pick-up Damon PO...(February 10th, 2017)
• Spring Ponton 11-1645 Mercedes Head Thermo Oem636 King (24.8% similar) And its affiliates and sisters networks. So I am aware of it to acquire the custom form. All parts of collectors are being wrapped from moment the picture is took. Must contact for shipping prices. Will do over night shipping for fee at cost of shipping. Applications are believed to be for many of ...(April 25th, 2015)
• 1160152001 Mercedes-benz Mercedes M116 R107 (31.7% similar) Will fit mercedes 380 series from and possible other applications. Please match our part number with yours to ensure fitment. You are viewing a good, used timing cover from 1981 mercedes 380SL...(April 13th, 2017)
• 1160162601 Mercedes-benz Mercedes R107 C107 W107 (32.1% similar) Proper for any engine rebuild or restoration. Vintage original, used mercedes benz r C107 450SL cylinder head. Posted with the android app free. No signs of old damage, no warping or cracks, no corrosion. From a 1976 450SLC with 107K miles. Items shipped outside of the us will not be declared as a...(December 17th, 2016)
• 1160162701 Mercedes-benz Mercedes R107 C107 W107 (32.1% similar) From a 1976 450SLC with 107K miles. No signs of old damage, no warping or cracks, but it does have one bent valve. Items shipped outside of the us will not be declared as a or valued at less than the selling price. The head does not appear to be affected. Posted with the android app free. No ...(December 17th, 2016)
• 1160163401 Mercedes-benz Mercedes Left Cylinder (41.5% similar) You are viewing a good, used left driver side cylinder head from 1981 mercedes 380SL. Will fit mercedes 380 series from please match our part number with yours to ensure fitment. Includes rockers all numbered from their original position...(April 10th, 2017)
• 121-010-38-20 Mercedes Benz Ponton Cylinder Head (42.7% similar) It would probably fit a benz from the fifties or 60S please see part number in 1ST photo. Need more photos or questions answered. This is untested and would probably need some attention but seems to be in good shape. To the best of my knowledge, this is a cylinder head 4 mercedes benz engine...(March 11th, 2017)
• 121.010.6120 Mercedes Sl Used Original Cylinder Head Cracked (42% similar) These are obsolete made in the USA or Canada parts that dealers no longer stock. Look to be caused by freezing water at some point in its life. Some of our nos parts have shelf wear or are missing the original boxes. Please here for more mercedes parts a used original mb aluminum cylinder head take ...(April 24th, 2019)
• 1210107120 Mercedes-benz Mercedes 190 190sl (30.2% similar) All spark plug holes and threads are good. The mating surface was minimally decked for flatness. Built this for a 190 pontoon project only to later discover the block was no good. Head was stripped and cleaned, installed new intake valves all guides stem seals. All valve seats were machined. All ...(February 11th, 2018)