MOPAR 5135749AB Viper Left Connecting Rod Piston Driver SRT-10

( Brand: Mopar ), ( Manufacturer Part Number: 5135749AB ), ( Type: Connecting Rod ), ( Material: Steel ), ( Vintage Part: No ), ( Country Of Origin: United States )

Review MOPAR Dodge Viper Left Connecting Rod Piston Driver Side fits RAM SRT10 2004–2006

The **Mopar 5135749AB 2004 2006 Dodge Viper SRT-10 Left Connecting Rod Piston Driver** is a precision-engineered component designed exclusively for the legendary **Ram SRT-10 supercharged V8 engine**, a powerhouse renowned for its raw, unfiltered performance and high-revving nature. This high-performance piston driver is a critical part of the engine s internal assembly, specifically tailored to the left-side connecting rod of the **LSR (Long-Stroke Revised) 7.0L supercharged V8**, which propels the Viper from 0 to 60 mph in under 3.5 seconds and produces over **500 horsepower** in its stock form. Crafted from **high-strength forged aluminum**, this piston driver is engineered to withstand the extreme forces generated by the supercharged intake, ensuring durability and reliability under the intense thermal and mechanical stresses of aggressive driving, drag racing, or high-performance applications. The driver features a **precision-machined wrist pin bore** and **optimized piston-to-rod interface**, allowing for minimal friction and maximum power transfer while maintaining structural integrity at high RPMs. Whether you're restoring a classic Viper, upgrading an existing engine, or building a custom high-performance setup, this **OEM-quality Mopar part** ensures seamless compatibility with the original **LSR engine block**, supercharger, and supporting components, delivering the same level of performance and reliability that Viper enthusiasts expect. Built to meet or exceed factory specifications, this piston driver is a must-have for anyone seeking to preserve or enhance the legendary power and character of the **2004 2006 Dodge Viper SRT-10**.

The **Mopar 5135749AB** is a left-side connecting rod piston driver specifically designed for the **2004-2006 Dodge Viper SRT-10 (RAM SRT-10)** engine. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of buying a Mopar 5135749AB Piston & Rod Driver Set**

1. **OEM Quality and Fitment**

- Mopar is the official aftermarket brand for Chrysler/Dodge, meaning this part is engineered to match the original equipment manufacturer (OEM) specifications. It should fit seamlessly into a 2004-2006 Viper SRT-10 engine without modification, reducing the risk of clearance issues or improper installation.

2. **High-Performance Application**

- The SRT-10 is a high-performance engine, and Mopar parts are designed to support its demanding requirements. The pistons and connecting rods are built to handle the stress of forced induction (turbo/supercharger) and high RPM, which is critical for maintaining reliability in a Viper.

3. **Compatibility with Common Modifications**

- Many Viper owners run aftermarket upgrades like turbochargers, nitrous, or high-flow heads. Mopar s parts are often compatible with these modifications, as they are designed to work within the engine s intended operating parameters. This reduces the need for custom machining or special ordering.

4. **Warranty and Support**

- Mopar parts typically come with a warranty (usually 12 months or more), providing some recourse if the part fails prematurely. Additionally, Mopar has a reputation for customer support, which can be helpful if installation or fitment issues arise.

5. **Cost-Effective for OEM Replacement**

- While not the cheapest option, Mopar parts are often more affordable than fully custom or high-end aftermarket alternatives (e.g., JE, Scat, or Forged Racing). For a Viper owner on a budget, this can be a practical choice for rebuilding or replacing worn components.

6. **Ease of Availability**

- Mopar parts are widely stocked by performance parts retailers (e.g., RockAuto, Summit Racing, local Mopar dealers) and can often be shipped quickly. This is advantageous if you need parts for a rebuild or repair without long lead times.

7. **Proven Reliability in Viper Applications**

- The SRT-10 engine has a history of reliability when properly maintained, and Mopar s parts are designed to uphold that standard. Many Viper owners trust Mopar for critical components like pistons and rods, especially in stock or lightly modified engines.

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### **Cons of buying a Mopar 5135749AB Piston & Rod Driver Set**

1. **Not Fully Forged or High-End Material**

- Mopar s piston and rod sets are **cast aluminum pistons** and **steel connecting rods**, which are adequate for stock or mildly modified applications but may not be ideal for extreme builds (e.g., high boost, nitrous, or aggressive tuning). Forged pistons and rods (e.g., from JE, Scat, or Forged Racing) offer better durability under extreme stress.

2. **Limited Customization Options**

- Unlike aftermarket brands that offer a wide range of piston shapes, ring packages, or rod lengths, Mopar s parts are standardized for the SRT-10. If you re running a heavily modified engine (e.g., custom camshafts, aggressive tuning), you may need to source additional components to optimize performance.

3. **Potential Weight Considerations**

- Cast pistons and steel rods are heavier than forged alternatives, which can slightly reduce engine responsiveness and high-RPM performance. While the difference is minor in a Viper, enthusiasts pushing the engine to its limits may prefer lighter components.

4. **Mixed Reviews on Durability in Aggressive Applications**

- Some Viper owners report that Mopar s cast pistons and rods can wear out faster under extreme conditions (e.g., high boost, frequent nitrous use, or poor maintenance). High-end aftermarket brands often use better materials and heat treatments, leading to longer lifespan in demanding setups.

5. **No Direct Access to Technical Support for Custom Builds**

- While Mopar provides general support, they may not offer the same level of technical guidance for highly customized or extreme builds as specialized aftermarket brands. If you re building a race engine or pushing the Viper to its limits, you may need to consult third-party experts.

6. **Potential for Stock-Sized Clearances**

- If you re running a heavily modified engine (e.g., aggressive camshafts, low compression ratios, or custom cylinder heads), the stock-sized Mopar pistons and rods may not provide the optimal clearance for your setup. You might need to source custom pistons or rods to avoid interference.

7. **Resale Value and Perception**

- While not a dealbreaker, some Viper enthusiasts prefer aftermarket brands like JE or Scat for high-performance builds, as they are often seen as more "premium." If you plan to sell the Viper later, this could slightly impact resale value, though it s unlikely to be a major factor.

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### **Conclusion**

The **Mopar 5135749AB piston and rod driver set** is a solid choice for **stock, mildly modified, or performance-oriented 2004-2006 Viper SRT-10 engines**. It offers **OEM-quality fitment, reliability, and ease of availability**, making it a practical option for rebuilds, maintenance, or upgrades that don t require extreme performance. However, if you re running **high boost, nitrous, or aggressive tuning**, you may want to consider **forged pistons and rods** from brands like JE, Scat, or Forged Racing for better durability and performance.

For most Viper owners who prioritize **reliability, cost-effectiveness, and ease of installation**, Mopar is a **good to excellent choice**. If you re pushing the engine to its absolute limits, however, investing in higher-end aftermarket parts may be worth the additional cost.

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### **Recommendation**

- You re rebuilding a stock or mildly modified SRT-10.

- You want OEM-quality parts with minimal clearance or fitment issues.

- You prefer a balance of cost and reliability without extreme performance demands.

- You need parts quickly for a repair or routine maintenance.

- You re running **high boost (above 20-25 psi), nitrous, or aggressive tuning**.

- You want **forged pistons and rods** for better durability and high-RPM performance.

- Your engine has **custom components** (e.g., low compression, aggressive cams) that require specialized piston/rod sizes.

- You re building a **race or extreme performance engine** where every ounce of reliability matters.

For the average Viper owner who enjoys driving their car without frequent engine issues, the **Mopar part is a smart and practical investment**. If you re a performance enthusiast pushing boundaries, weigh the pros and cons carefully and consider upgrading to aftermarket components for long-term reliability.

Details:

OEM part # is 5135749AB. The part fits 2004 2006 Dodge Viper and Ram SRT10. This listing is for 1 left driver side connecting rod and piston.

part #: 5135749ab prices

• $172.74-$299.99

specifications pistonrinro:

• for models: Srt10, Ram
• for makes: Dodge, Mopar
• for years: 2004-2006
• brand: Mopar
• mpn: 5135749ab
• type: Connecting Rod
• material: Steel
• vintage part: No
• country of origin: United States

returns pistonrinro:

• policy: No Returns

shipping pistonrinro:

• type: Fixed
• transit: 3-8 Days
• cost: $0.00
• service: Economy
• class: Economy

payments pistonrinro:

• credit card: Visa
• other
• wallet: Paypal

offer pistonrinro:

• options: Ship-to-home
• quantity: 2
• started: April 28, 2026
• sold: 0
• availability: In Stock

seller pistonrinro:

• # reviews: 1539
• rating: 98.5%
• city: Orwigsburg, Pennsylvania

general pistonrinro:

• Car Truck Parts Accessories > Engines Engine Parts > Connecting Rods Parts
• condition: Used

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