PORSCHE 99610201203 Crankshaft 997 3.6 3.8 M96 M97

( Manufacturer Part Number: 99610201203 ), ( Year: 2004 ), ( Storage Location: X1c05 ), ( Body Style: Coupe ), ( Interior Color: Black Standard Leather ), ( Engine: 3.6l ), ( Transmission: 6 Speed At ), ( Oe/oem Part Number: 996-102-012-03; 996.102.012.03; 996 102 012 03 ), ( Placement On Vehicle: Engine ), ( Type: Crankshaft ), ( Vehicle Color: Guards Red )

Review PORSCHE 996 997 3.6 3.8 M96 M97 Crankshaft Oem fits 911 2002–2008

The **Porsche 996 Crankshaft (Part Number: 10201203)** is a critical component of the iconic 911 series, specifically designed for the **996 (2002 2005) and 997 (2005 2008) generations**, covering both the **3.6L (M96) and 3.8L (M97) flat-six engines** in the 911 Carrera, Turbo, and GT3 models. Engineered with precision and built to Porsche s exacting standards, this crankshaft is forged from high-grade **chromoly steel**, ensuring exceptional durability, strength, and resistance to torsional stress under extreme performance demands. The **five-main-bearing journal design** provides optimal load distribution, reducing vibration and enhancing long-term reliability, while the **counterweights** are meticulously balanced to minimize harmonic distortion, a key factor in maintaining smooth operation and extending engine life. This crankshaft is a direct replacement for the original equipment (OEM) component, featuring the same **fillet radii, journal diameters, and machining tolerances** as the factory part, ensuring seamless integration with the engine s crankshaft pulley, timing chain, and connecting rods. Whether used in a **restoration project, high-mileage rebuild, or performance upgrade**, this crankshaft delivers the same level of performance and refinement that Porsche drivers expect, with the added benefit of improved longevity and reduced risk of catastrophic failure. Built to withstand the high RPMs and torque outputs characteristic of the 911 s legendary driving dynamics, this component is a testament to Porsche s engineering heritage, offering a perfect blend of heritage craftsmanship and modern reliability for enthusiasts seeking the ultimate in German engineering.

### **Pros and Cons of Buying a Porsche 996 (2002 2008) 911 with a Crankshaft Issue (M96/M97 3.6L or 3.8L Engine)**

#### **Pros**

1. **Iconic Porsche 911 Design**

- The 996 generation (2000 2004) and early 997 (2005 2008) are among the most recognizable and desirable 911 models. The 996 s angular styling and the 997 s more refined, rounded look remain highly sought after, even decades later.

2. **Strong Performance (Pre-Crankshaft Issues)**

- The 3.6L (M96) and 3.8L (M97) engines produce **325 350 hp** (depending on model and year), delivering excellent acceleration and top-speed capabilities for a naturally aspirated V8.

- The 997 introduced a more powerful **3.8L engine (M97)** with improved fuel injection and better tuning, making it more refined and efficient than the earlier 3.6L.

- The **PDK transmission (optional in 997, standard in later models)** provides near-supercar-level shifting, though it requires proper maintenance.

3. **Reliability (When Well-Maintained)**

- Porsche s air-cooled engines (pre-996) were notorious for rust and complexity, but the **water-cooled 996/997 engines are far more reliable** if properly maintained.

- The **3.8L M97 engine** (especially in later 997 models) is one of the most robust in the 996/997 lineup, with fewer known major issues than the 3.6L.

- The **PDK transmission (when serviced correctly)** is one of the best in its class, offering smooth, near-instantaneous gear changes.

4. **Aftermarket & Customization Potential**

- The 996/997 is a **highly modified platform**, with extensive aftermarket support for performance upgrades (turbo kits, exhaust, suspension, etc.).

- The **997 s wider track and improved handling** make it a favorite for track days and drifting.

- **Body kits, paint, and interior upgrades** are widely available, allowing buyers to personalize their cars extensively.

5. **Resale Value & Collectibility**

- Even with crankshaft issues, **low-mileage 996/997 models hold their value well**, especially in **Turbo, Carrera S, or GT3/GT3 RS trim**.

- The **997 (2005 2008)** is particularly desirable due to its **improved engineering, PDK option, and sportier nature**, making it a better long-term investment than the 996.

- **Rare or limited-edition models** (e.g., 996 Carrera GT, 997 GT2, or early PDK cars) can appreciate significantly over time.

6. **Driving Experience**

- The **manual transmission (if well-maintained) is one of the best in the business**, offering precise, engaging shifts.

- The **997 s revised suspension and steering** provide a more modern, sporty feel compared to the 996.

- The **Turbo and GT3 models** are particularly rewarding to drive, with **0-60 mph in 4.5 5.5 seconds** (manual) and **excellent handling**.

7. **Lower Running Costs (Compared to Modern Supercars)**

- While Porsche parts can be expensive, **fuel efficiency ( 12 15 MPG combined) is far better than a modern hypercar**.

- **Insurance costs are reasonable** compared to a 911 GT3 RS or 718 Cayman GT4 CS.

---

#### **Cons**

1. **Crankshaft Issues (Most Critical Problem)**

- The **3.6L M96 engine (996, 2000 2004)** is infamous for **crankshaft failures**, particularly in **high-mileage examples (100K miles)**.

- Symptoms include **knocking, oil consumption, white smoke, and eventual catastrophic engine failure**.

- **Porsche issued a recall (2005) for crankshaft replacement**, but many affected cars were never fixed.

- The **3.8L M97 engine (997, 2005 2008)** is **less prone to crankshaft issues**, but **some examples still suffer from rod bearing wear, oil leaks, or timing chain problems**.

- **High-mileage 3.8L engines may still require a **crankshaft replacement ( $5,000 $8,000 labor parts)**.

- **If the crankshaft is already failing**, the repair is **extremely expensive** and may not be worth it for high-mileage examples.

2. **Rust & Electrical Gremlins (Especially in 996 Models)**

- The **996 (2000 2004) is notorious for rust**, particularly in **wheel wells, subframes, and rear crossmembers**.

- **Electrical issues** (faulty sensors, wiring harness problems, infotainment glitches) are common, especially in older 996 models.

- **997 models are more refined**, but **early examples (2005 2006) still have some rust and electrical quirks**.

3. **Maintenance & Repair Costs**

- Porsche parts are **expensive**, and labor costs at dealerships can be **high ($150 $200/hour)**.

- **Specialized knowledge** is often required for **timing chain, water pump, and oil pump replacements**, which can be **labor-intensive**.

- **Oil consumption** is a known issue in some 3.8L M97 engines, requiring **frequent top-ups** (up to **1 quart per 1,000 miles** in severe cases).

4. **Transmission Issues (PDK & Manual)**

- **PDK transmission problems** (fluid leaks, clutch wear, electronic gremlins) are common in **high-mileage examples**.

- **Fluid changes are critical** ( $300 $500 every 30K 50K miles).

- **Manual transmissions** can develop **clutch and synchro issues**, especially in **high-mileage 996 models**.

- **Smooth shifts require proper maintenance**, and neglect can lead to **expensive rebuilds**.

5. **Suspension & Steering Wear**

- **Shock absorbers, bushings, and control arms** wear out **relatively quickly** (every **50K 80K miles**).

- **Power steering fluid leaks** are common, requiring **regular checks**.

- **Rear subframe rust** (especially in 996) can lead to **alignment and handling issues**.

6. **Interior & Comfort Limitations**

- The **996 interior is dated and less refined**, with **cheap plastics and poor sound insulation**.

- The **997 improved this**, but **early models still lack modern tech** (no Apple CarPlay/Android Auto, basic infotainment).

- **Seats are comfortable but not as supportive as modern Porsche models** (e.g., 992).

7. **Depreciation & Market Saturation**

- While **low-mileage examples hold value**, **high-mileage or poorly maintained 996/997 models depreciate quickly**.

- The **market is saturated with used 996/997 cars**, making **finding a truly well-documented example difficult**.

- **Newer 911 models (992) are more efficient and reliable**, reducing demand for older generations.

8. **Environmental & Emissions Concerns**

- **Older 996/997 models may fail emissions tests** in strict regions (e.g., California, parts of Europe).

- **OBD-II tuning or modifications** can help, but **some states require original emissions compliance**.

---

### **Ending Conclusion & Recommendation**

#### **Who Should Buy a 996/997 with Crankshaft Concerns?**

1. **Only Consider a 3.8L M97 Engine (997, 2005 2008)**

- The **3.6L M96 (996) is a death trap** if the crankshaft is failing **avoid unless you re prepared for a $6K repair**.

- **Get a full engine inspection** (crankshaft, rod bearings, oil pump, timing chain).

- **Check for oil consumption** (if it s excessive, budget for a **crankshaft

Details:

Manufacturer Part Number. Stock Number: 25491. Storage Location: X1C05. BMW Porsche Audi VW Other Makes.

Condition: Used. Warranty covers the part only; labor and installation costs are not covered. Color: Guards Red G1.

part #: 99610201203 price

• $2699.24

specifications cranshafengin:

• for models: 911
• for makes: Porsche
• for years: 2002-2008
• mpn: 99610201203
• year: 2004
• storage location: X1c05
• body style: Coupe
• interior color: Black Standard Leather
• engine: 3.6l
• transmission: 6 Speed At
• oe/oem part number: 996-102-012-03; 996.102.012.03; 996 102 012 03
• placement on vehicle: Engine
• type: Crankshaft
• vehicle color: Guards Red

payments cranshafengin:

• cash
• money order
• credit card: Diners-club
• wallet: Paypal
• check
• other

general cranshafengin:

• Car Truck Parts Accessories > Engines Engine Parts > Crankshafts
• condition: Used

returns cranshafengin:

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

seller cranshafengin:

• rating: 99.9%
• city: Rancho Cordova, California
• # reviews: 78570

shipping cranshafengin:

• carrier: USPS, UPS
• transit: 4-10 Days
• cost: $0.00
• class: Standard
• service: USPS Ground Advantage, UPS Ground
• type: Fixed

offer cranshafengin:

• sold: 0
• quantity: 1
• best offers: True
• started: April 27, 2026
• options: Ship-to-home
• availability: In Stock

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