NISSAN A2010-8J112 Piston Connecting Rod Piston/

( Brand: Nissan ), ( Manufacturer Part Number: A2010-8J112 ), ( Type: Piston )

Review NISSAN Infiniti Piston/ Connecting Rod Grade fits G35 350Z VQ35DE 2003–2006

The **Nissan VQ35DE 3.5L DOHC V6 engine**, found in the **2003 2006 Infiniti G35 and Nissan 350Z (A2010 chassis)**, represents a pinnacle of late-1990s Japanese engineering a high-performance, naturally aspirated powerplant designed to deliver exhilarating acceleration, refined precision, and enduring reliability. This **8J112** engine variant, built between 2003 and 2006, features a **3,498cc V6 architecture** with a **24-valve DOHC (Dual Overhead Camshaft) design**, where each cylinder head houses two intake and two exhaust valves per bank, operated by a **chain-driven timing system** for smooth and durable operation. The **forged steel crankshaft**, paired with **forged aluminum pistons** and **high-strength connecting rods**, ensures exceptional strength under high RPM loads, making it a favorite among enthusiasts for both daily driving and spirited performance applications. With a **compression ratio of 10.5:1**, the VQ35DE produces a **naturally aspirated output of 306 horsepower (228 kW) at 6,400 RPM and 268 lb-ft (363 Nm) of torque at 4,400 RPM** in its stock form, though aftermarket tuning can easily coax it into the **350 horsepower range** with minimal modifications. The engine s **cast-iron cylinder block** and **aluminum cylinder heads** balance weight and durability, while the **multi-point fuel injection system** and **electronic throttle control** provide precise fuel delivery and throttle response, contributing to the G35 s legendary balance of power and drivability. Whether used in a **stock restoration, high-performance build, or as a donor for a turbocharged or supercharged project**, the VQ35DE remains a sought-after engine for its **proven reliability, smooth operation, and adaptability** making it a cornerstone of Nissan s most iconic sports sedans and coupes of the early 2000s.

### **Pros and Cons of Buying a Nissan/Acura VQ35DE (2003 2006 Infiniti G35 / Nissan 350Z)**

#### **Pros**

1. **Strong Engine (VQ35DE)**

- The VQ35DE is a well-regarded 3.5L V6 engine known for its reliability, power (287 306 hp in stock form), and smooth operation. It handles high RPMs well and is often praised for its longevity when maintained properly.

- The piston/connecting rod issue you mentioned is a known concern, but it is not universal many VQ35DE engines run flawlessly for 200,000 miles if properly serviced.

2. **Rear-Wheel Drive (RWD) Platform**

- The G35/350Z is a true RWD sports car, offering better handling and driving dynamics compared to front-wheel-drive alternatives. The chassis is lightweight and responsive, making it enjoyable to drive.

- The rear-engine layout (in the case of the 350Z) provides a lower center of gravity, improving stability and cornering.

3. **Performance Potential**

- The VQ35DE is a tuner s dream, with aftermarket support for forced induction (turbocharging/supercharging) and naturally aspirated upgrades. Many owners achieve 400 hp with relatively simple modifications.

- Stock models are quick for their class, with the G35 (coupe) and 350Z (roadster) offering sporty handling and a balanced driving experience.

4. **Affordability**

- Compared to modern sports cars, the G35/350Z is relatively inexpensive to purchase, especially in used form. Parts and labor costs are also lower than those of luxury or high-performance cars.

- The VQ35DE is a common engine, so finding mechanics familiar with it is easier than with niche or exotic powertrains.

5. **Classic Styling**

- The G35 and 350Z have timeless, aggressive designs that remain popular among enthusiasts. The 350Z s roadster body is particularly iconic.

- The interior is well-built, with quality materials and a driver-focused layout, though some may find it dated compared to modern vehicles.

6. **Reliability (When Maintained)**

- With proper maintenance (oil changes, timing belt/chain service, valve cover gasket replacement), the VQ35DE is known to last well beyond 200,000 miles. Many examples exceed 300,000 miles with minimal issues.

- The transmission (5-speed manual or automatic) is robust, though the automatic (Jatco JF506) can be finicky in cold weather.

---

#### **Cons**

1. **Piston/Connecting Rod Failure Risk**

- The VQ35DE has a reputation for piston/connecting rod failures, particularly in engines with high mileage or poor maintenance. This is often linked to:

- **Oil sludge buildup** (common in engines that don t get regular oil changes or use the wrong oil).

- **Worn piston rings or oil control rings**, leading to oil consumption and sludge.

- **Low-quality oil or extended oil change intervals** (Nissan originally recommended 10,000-mile oil changes, but many experts now suggest 5,000 miles for synthetic).

- Symptoms of impending failure include **blue smoke from the exhaust, oil consumption, knocking noises, or a sudden loss of power**. If you buy a used VQ35DE, **inspect the engine bay for signs of past issues** (e.g., oil leaks, modified internals) and **request maintenance records**.

2. **Timing Chain vs. Belt**

- The VQ35DE uses a **timing chain**, which is more durable than a belt but still requires attention. While it doesn t need replacement as often as a belt, it can stretch over time, leading to timing issues. Some owners report chain stretch becoming noticeable around 100,000 150,000 miles.

- Unlike a belt, a stretched chain cannot be easily replaced without removing the engine, making it a more expensive repair.

3. **Transmission Issues (Automatic Models)**

- The **Jatco JF506 automatic transmission** in the G35 (2003 2004) is notorious for **rough shifting, slipping, and failure**, especially in cold weather. Later models (2005 2006) improved slightly, but the transmission remains a weak point.

- The **5-speed manual** is generally more reliable but can still develop issues with the clutch or shifter mechanism over time.

4. **Electrical and Minor Wear Items**

- Like many older cars, the G35/350Z can suffer from **electrical gremlins** (e.g., faulty sensors, wiring issues, or failing infotainment systems).

- **Suspension components** (shock absorbers, bushings, ball joints) wear out over time and may require replacement, affecting ride quality and handling.

- **Power steering fluid leaks** and **brake pad wear** are common in high-mileage examples.

5. **Fuel Economy**

- The VQ35DE is not known for its efficiency. The G35/350Z gets around **16 18 MPG in the city and 22 25 MPG on the highway**, which is decent for a sports car but not great for daily driving.

6. **Resale Value and Market Saturation**

- The G35/350Z is a popular used car, meaning there is **high competition** in the market. Prices can be inflated for well-maintained examples, and finding a "good deal" may require extra effort.

- The car s age means it lacks modern safety features (e.g., modern airbags, stability control, or advanced driver aids), which may be a concern for some buyers.

7. **Maintenance Costs**

- While parts are affordable, **labor costs can add up**, especially for engine-related work. Specialized shops may charge more for VQ35DE-specific repairs.

- **Oil changes should not be skipped** using the wrong oil or extending intervals too far can lead to the piston/connecting rod issues mentioned earlier.

---

### **Ending Conclusion**

The **2003 2006 Nissan/Acura VQ35DE (G35/350Z)** is a fantastic sports car for the right buyer. It offers **strong performance, a fun driving experience, and a cult following**, but it comes with **notable risks**, particularly the **piston/connecting rod failure** if the engine hasn t been properly maintained. If you re willing to **budget for potential engine repairs, stay on top of maintenance, and possibly replace the transmission (if automatic)**, this car can be an excellent long-term project or daily driver.

For buyers who prioritize **reliability and low hassle**, a **well-documented VQ35DE with a clean service history** (especially regarding oil changes and timing chain inspection) is ideal. If you re comfortable with **mechanical work or have access to a trusted mechanic**, the G35/350Z can be a rewarding ownership experience.

---

### **Recommendation**

- **Oil sludge** (drain the oil and inspect for debris).

- **Piston/connecting rod condition** (listen for knocking, check for blue smoke, inspect the engine bay for past modifications).

- **Timing chain stretch** (some shops can check this without full disassembly).

- **Transmission health** (if automatic, ensure no slipping or rough shifting).

- **Avoid engines with high mileage (>150,000 miles) without proof of regular oil changes** (every 5,000 miles with synthetic).

- **Consider a manual transmission** if you want to avoid transmission issues (though the automatic can be fixed with a rebuild).

- **Synthetic oil changes every 5,000 miles**.

- **No history of oil leaks or modifications**.

- **A clean title** (no salvage or flood damage).

- **Piston/connecting rod replacement** can cost **$3,000 $6,000 ** depending on labor and parts.

- **Transmission rebuild** (if automatic) can run **$2,500 $4,000**.

- **Timing chain replacement** (if stretched) is **$1,000 $2,000**.

- **Budget an extra $1,000 $2,000/year** for maintenance beyond typical car costs.

- **Buy it if:** You love sports cars, are prepared for potential engine

Details:

If you are unsure. Furthermore, there may be cross compatibility from one make to another Nissan and Infiniti, for example. Shipping costs are not negotiable, in most cases. Be sure to select an accurate reason when opening a case.

Residential/commercial address, lift gate access, etc. Listing titles limit the amount of key words that can be used, so it may listed under another name. Keep in, mind there are some fringe years where the item may be compatible with one model but not another RWD vs AWD, for example.

part #: a20108j112 prices

• $41.58-$180.35

specifications pistonringro:

• for models: G35, 350z, Vq35de
• for makes: Infiniti, Nissan
• for years: 2003-2006
• brand: Nissan
• mpn: A2010-8j112
• type: Piston

general pistonringro:

• condition: Used
• Car Truck Parts Accessories > Engines Engine Parts > Pistons Rings

returns pistonringro:

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

payments pistonringro:

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

shipping pistonringro:

• type: Fixed
• service: UPS Ground
• cost: $25.00
• class: Standard
• transit: 3-7 Days
• carrier: UPS

seller pistonringro:

• rating: 99.7%
• # reviews: 2887
• city: Tucson, Arizona

offer pistonringro:

• best offers: True
• sold: 0
• started: February 17, 2026
• options: Ship-to-home
• quantity: 1
• availability: In Stock

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