RANGE ROVER LR002439 Piston Connecting Rod 4.2L

( Brand: Range Rover ), ( Manufacturer Part Number: LR002439 ), ( Type: Piston ), ( Oe/oem Part Number: Lr002439, 4728695, 1357861 ), ( Items Included: Piston Rings ), ( Material: Aluminum Alloy ), ( Vintage Part: No )

Review RANGE ROVER Piston Connecting Rod 4.2l Oem fits 2007

The **Rover LR002439 Piston Connecting Rod Assembly for the 2007 4.2L Engine** is a precision-engineered component designed to deliver optimal performance and reliability within the iconic Rover 75 and other vehicles equipped with the **K-series 4.2-liter inline-six engine**. This high-quality aftermarket part is meticulously crafted to meet or exceed OEM specifications, ensuring seamless integration with the engine s critical internal mechanisms. The **connecting rod**, a vital link between the piston and crankshaft, is forged from durable, high-strength alloy steel, engineered to withstand the immense forces generated during combustion cycles while maintaining structural integrity under extreme operating conditions. Its robust construction minimizes wear and tear, reducing the risk of catastrophic failure and extending the engine s operational lifespan. The accompanying **piston**, paired with the connecting rod, features a precision-machined crown and ring lands optimized for efficient compression and oil control, enhancing fuel economy and power output. This assembly is particularly well-suited for applications requiring enhanced durability, such as high-mileage vehicles, performance modifications, or engines subjected to heavy loads. Whether used in a restoration project, a rebuild, or as a proactive replacement to prevent premature wear, the **LR002439 assembly** combines engineering precision with aftermarket reliability, offering a cost-effective solution for maintaining peak engine performance in the Rover 75 and compatible models.

### **Pros and Cons of Buying a Rover LR002439 (2007 Piston, Connecting Rod for 4.2L Engine)**

1. **Compatibility** The LR002439 piston and connecting rod set is designed specifically for the 4.2L Rover (and Land Rover) V8 engine, ensuring a proper fit and optimal performance.

2. **Performance Potential** Upgraded pistons and rods can improve engine efficiency, reduce wear, and enhance power output if the rest of the engine is in good condition.

3. **Durability** High-quality aftermarket parts (assuming a reputable brand) are often built to withstand higher stress than OEM components, potentially extending engine life.

4. **Cost-Effective Upgrade** Replacing worn pistons and rods can be cheaper than a full engine rebuild, especially if the engine block is still sound.

5. **Preventative Maintenance** Installing new components early can prevent catastrophic failure (e.g., rod knock) and avoid costly repairs later.

6. **Customization Option** Some aftermarket sets offer forged or high-performance variants, allowing for tuning potential if combined with other modifications.

1. **Cost** A quality piston and rod set for a 4.2L Rover engine can be expensive, especially if sourced from a premium brand. Prices may range from $300 to $800 depending on materials and quality.

2. **Labor Intensity** Installing pistons and rods requires significant disassembly, machining (if needed), and precision assembly. This is a labor-intensive job best left to a skilled mechanic.

3. **Engine Condition Dependency** If the engine block, crankshaft, or other components are worn or damaged, replacing just the pistons and rods won t fully restore performance. A full inspection is necessary.

4. **Compatibility Risks** If the wrong part is purchased (e.g., incorrect rod length or piston height), it could cause binding, reduced compression, or even engine damage.

5. **Potential for Counterfeit Parts** The aftermarket for Rover/Land Rover parts has been known to include fakes or low-quality replicas, which may fail prematurely.

6. **Time-Consuming Process** A full rebuild with new pistons and rods can take days, requiring patience and access to proper tools and facilities.

- **Source Verification** Purchase from a trusted supplier (e.g., **RoverSport, Land Rover Parts Direct, or a reputable engine rebuild shop**) to avoid counterfeit or substandard parts.

- **Professional Installation** Unless you have extensive mechanical experience, have a qualified engine specialist perform the work to ensure proper gasket sealing, bearing clearance, and compression checks.

- **Engine Health Check** Before committing, verify the condition of the crankshaft, camshaft, cylinder heads, and block for cracks or wear. A compression test or leak-down test may be necessary.

- **Alternative Options** If the engine is severely worn, consider a **remanufactured engine** or a **used but reliable swap** from a known donor vehicle, which may be more cost-effective than a partial rebuild.

- The engine is otherwise in decent condition.

- You source high-quality, genuine parts.

- You have (or hire) a skilled mechanic to install them properly.

However, if the engine has significant underlying issues (e.g., cracked block, worn crank), replacing just the pistons and rods may not be sufficient, and a full rebuild or engine swap could be more practical.

1. **Get a Professional Inspection** Have a mechanic perform a full engine diagnostic, including compression tests and visual checks for wear.

2. **Choose a Reputable Supplier** Stick to well-known brands (e.g., **Mahle, Wagner, or Forged Racing**) and avoid cheap knockoffs.

3. **Budget for Labor** Account for the cost of professional installation, as improper fitting can void warranties and cause damage.

4. **Consider a Full Rebuild** If the engine has extensive wear, a complete rebuild (including crankshaft, bearings, and seals) may be more cost-effective in the long run.

5. **Document the Work** Keep records of parts used and labor performed for future reference.

**Final Verdict:** If the engine is sound and you re committed to the project, upgrading the pistons and rods is a solid performance and longevity upgrade. However, weigh the costs against the engine s overall condition before proceeding. For most owners, a **full engine rebuild or remanufactured unit** may offer better long-term reliability.

Details:

The exact part number match is the only guarantee of fitment. This item was previously used and may show some signs of imperfection. Transmission: Automatic. Engine: AJ gasoline 4.2 V8 Supercharged.

Exterior Paint: Fermat Silver 798. SAME-DAY SHIPPING: Purchase before 2PM EST. Interior Environment: Jet - Oxford. This item is in full working condition.

Everything can be resolved. BEFORE PURCHASE: Get in touch with ANY questions related to item you want purchase.

part #: lr002439 prices

• $95.00-$139.75

specifications pistonringro:

• for years: 2007
• brand: Range Rover
• mpn: Lr002439
• type: Piston
• oe/oem part number: Lr002439, 4728695, 1357861
• items included: Piston Rings
• material: Aluminum Alloy
• vintage part: No

shipping pistonringro:

• type: Fixed
• class: Economy
• service: Economy
• cost: $0.00
• transit: 4-7 Days

offer pistonringro:

• started: March 26, 2026
• sold: 0
• availability: In Stock
• quantity: 1
• best offers: True
• options: Ship-to-home

seller pistonringro:

• city: Newark, New Jersey
• rating: 99.7%
• # reviews: 19065

general pistonringro:

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

payments pistonringro:

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

returns pistonringro:

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

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