CHEVROLET 400-00533 Hhr Automatic Transmission Rnzpi 114K

( Part Type: Transmission ), ( Ipn: 400-00533 ), ( Manufacturer Warranty: Unspecified Length ), ( Fitment Type: Direct Replacement ), ( Mounting Hardware Included: No )

Review CHEVROLET Hhr Automatic Transmission Assembly 114k Rnzpi fits 2008

The **Chevrolet 400-00533 2008-2008 HHR Automatic Transmission (RNZPI)** is a precision-engineered, six-speed automatic transmission designed exclusively for the compact Chevrolet HHR, a vehicle known for its blend of sporty handling and practicality. This transmission is a refined evolution of General Motors renowned **6T70** family, featuring a robust **torque converter clutch** and a **planetary gearset** architecture that ensures smooth, responsive shifts even under demanding driving conditions. Built with durability in mind, the **RNZPI** incorporates a **hydraulic valve body** with precision-machined passages and a **multi-plate wet clutch pack**, allowing for seamless engagement of gears while maintaining optimal efficiency. The transmission s **electronic control module (ECM)** integrates seamlessly with the vehicle s powertrain control system, enabling adaptive shift logic that anticipates driver intent, whether accelerating smoothly on the highway or navigating tight city streets. Constructed from high-strength alloys and heat-treated components, this transmission is engineered to withstand the rigors of daily driving, including towing light loads and handling aggressive driving styles, all while minimizing wear on the drivetrain. Its **sealed-for-life** design reduces the need for frequent fluid changes, though GM recommends following the **Dexron VI** fluid specification for optimal performance and longevity. Whether installed in a stock HHR or modified for performance, this transmission delivers a balance of reliability, precision, and adaptability, making it a critical component for maintaining the vehicle s dynamic character and dependability over thousands of miles.

The **2008 Chevrolet HHR** with the **400-00533 automatic transmission (RNZPI)** is a compact crossover SUV that can be a practical choice for some buyers, but it also comes with notable drawbacks. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the 2008 Chevrolet HHR (400-00533 Automatic Transmission)**

1. **Affordability** The HHR is one of the most budget-friendly compact SUVs from its era, making it a cost-effective option for those on a tight budget. Parts and labor are relatively inexpensive compared to larger or more premium vehicles.

2. **Fuel Efficiency** The **2.4L 4-cylinder engine** paired with the **6-speed automatic transmission** offers decent fuel economy for its class, averaging around **18-20 MPG in the city and 26-28 MPG on the highway**, depending on driving conditions.

3. **Compact Size & Maneuverability** The HHR is smaller than many SUVs, making it easier to park and navigate in urban areas. Its lightweight design also contributes to better fuel efficiency.

4. **Basic Reliability (for its age)** The **6-speed automatic transmission (RNZPI)** is a relatively simple and durable unit for its time, though it is not as advanced as modern transmissions. Many owners report few major transmission issues if maintained properly.

5. **Simple & Easy to Repair** The HHR s mechanical systems are straightforward, meaning that basic repairs (oil changes, brake work, etc.) are manageable for DIYers or less expensive at shops.

6. **Available as a 2-Door or 4-Door** The HHR was offered in both body styles, providing flexibility depending on passenger and cargo needs.

7. **Decent Resale Value (for its class)** While not high, the HHR holds its value better than some other compact SUVs from the late 2000s due to its popularity and availability of parts.

8. **No Major Safety Recalls (for this model year)** Unlike some vehicles from this era, the 2008 HHR does not have widespread safety recalls that could significantly impact its value or safety.

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### **Cons of the 2008 Chevrolet HHR (400-00533 Automatic Transmission)**

1. **Poor Fuel Economy in Real-World Use** While the EPA ratings are decent, real-world fuel economy is often lower due to the HHR s **heavier weight (for a compact SUV) and less efficient drivetrain**. Stop-and-go city driving can drop MPG significantly.

2. **Weak Engine & Transmission** The **2.4L 4-cylinder engine** is underpowered for an SUV, especially when loaded with passengers or cargo. The **6-speed automatic (RNZPI)** is not as smooth or responsive as modern transmissions, and some owners report **rough shifting or hesitation** under load.

3. **Rust Issues (Especially in Snowy/Corrosive Areas)** The HHR is notorious for **frame and undercarriage rust**, particularly in regions with salted roads or heavy snow. A thorough inspection of the **wheel wells, rocker panels, and frame rails** is essential before purchase.

4. **Poor Interior Quality & Comfort** The cabin feels **cheap and poorly insulated**, with thin plastic trim, squeaky panels, and weak sound deadening. Heating and cooling performance is often inconsistent.

5. **Rear Seat Comfort & Space** The rear seats are **narrow and uncomfortable for adults**, making long trips difficult. Cargo space is adequate but not generous compared to competitors like the Honda CR-V or Toyota RAV4.

6. **Transmission & Electrical Gremlins** Some owners report **transmission slipping, delayed engagement, or electrical issues** (e.g., check engine lights, sensor failures). The **RNZPI transmission** is not as refined as later models and can be finicky.

7. **Outdated Safety Features** The 2008 HHR lacks modern safety tech like **stability control (standard only in some trims), side airbags (optional), or advanced driver aids**. It also has **poor crash test ratings** compared to newer vehicles.

8. **High Maintenance Costs Over Time** While initial repairs are cheap, **ignoring rust or engine issues** can lead to expensive long-term problems (e.g., frame replacement, engine failure).

9. **Discontinued & Hard to Find Parts** Since the HHR was discontinued in 2011, **parts availability is declining**, and some components (e.g., specific sensors, wiring harnesses) may become harder to source.

10. **Poor Resale Value & Depreciation** The HHR has **depreciated significantly** over the years, and even well-maintained examples hold little value compared to more reliable or modern alternatives.

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### **Conclusion**

The **2008 Chevrolet HHR with the 400-00533 automatic transmission** can be a **budget-friendly, low-maintenance vehicle** if you prioritize affordability and don t need an SUV with modern comforts or safety features. However, it is **notoriously unreliable in critical areas** (rust, transmission smoothness, interior quality) and lacks the durability of more established compact SUVs like the **Toyota RAV4, Honda CR-V, or Subaru Forester**.

If you find a **clean, rust-free example with a well-maintained transmission and engine**, it could serve as a **short-term or low-mileage daily driver** but it is **not a long-term investment**. The risks of **hidden rust damage, transmission issues, and poor resale value** make it a **high-risk purchase** unless you are prepared for potential repairs.

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### **Recommendation**

- You **cannot afford a more reliable used SUV** (e.g., 2010 RAV4, CR-V, or Escape).

- You **live in a dry, rust-free climate** and can **inspect the vehicle thoroughly for corrosion**.

- You **plan to drive it for only a few years** and are prepared for **potential transmission or engine issues**.

- You **find a well-documented history** (service records, no rust, no major accidents).

- You **need a long-term, low-maintenance SUV**.

- You **live in a snowy or coastal area** where rust is a major concern.

- You **prioritize comfort, safety, or fuel efficiency** over cost savings.

- You **cannot afford unexpected repairs** (transmission, engine, or rust-related).

- **2010-2012 Toyota RAV4** (more reliable, better fuel economy, stronger resale value)

- **2010-2012 Honda CR-V** (comfortable, durable, good safety ratings)

- **2010-2012 Subaru Forester** (AWD option, better handling, rust-resistant)

- **2010-2012 Ford Escape** (more power, better interior quality)

If you still want the HHR, **get a pre-purchase inspection (PPI) from a trusted mechanic**, **check for rust**, and **verify transmission and engine health** before buying. Otherwise, **spend a little more for a more reliable used SUV** that will save you money and headaches in the long run.

Details:

Most electronic parts are not plug and play. Compatible with: HHR 08 MT; 2.4L. HHR 08 MT; 2.2L. To aid in installation, you get to keep your current transmission and all attached accessories.

This 2008 Chevrolet HHR Automatic Transmission 114K Miles is in overall good condition. Please also use the pictures to ensure a proper fit.

specifications autotransmissionsgo:

• for makes: Chevrolet
• for years: 2008
• part type: Transmission
• ipn: 400-00533
• manufacturer warranty: Unspecified Length
• fitment type: Direct Replacement
• mounting hardware included: No

general autotransmissionsgo:

• Car Truck Parts Accessories > Transmission Drivetrain > Automatic Transmission
• condition: Used

returns autotransmissionsgo:

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

shipping autotransmissionsgo:

• cost: $0.00
• service: Flat Rate Freight
• type: Fixed
• class: Freight

offer autotransmissionsgo:

• options: Ship-to-home
• quantity: 1
• started: May 30, 2026
• sold: 0
• availability: In Stock

payments autotransmissionsgo:

• wallet: Paypal
• credit card: Discover
• other

seller autotransmissionsgo:

• rating: 99.4%
• city: Las Vegas, Nevada
• # reviews: 89564

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