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  3. CARLIGHTS360 ALX-PAU-SI-TCS374-CLA13

CARLIGHTS360 ALX-PAU-SI-TCS374-CLA13 Transmission Control 197295004865 Solenoid

fits make: Chevy. year: 2003–2008.

Alx-pau-si-tcs374-cla13 Carlights360 For Chevy Express 1500 2003-2008 Transmission Control Solenoid Metal Plastic

( Brand: Carlights360 ), ( Manufacturer Part Number: ALX-PAU-SI-TCS374-CLA13 ), ( Part Type: Control Transmission Solenoid ), ( Features: Easy Installation ), ( Oe/oem Part Number: 26094827 ), ( Material: Metal, Plastic ), ( Item Height: 8.500 ), ( Item Length: 4.000 ), ( Item Weight: 0.2500 ), ( Item Width: 1.500 ), ( Fitment Type: Direct Replacement ), ( Generic Keywords 1: Part ), ( Oem Equivalent Part Number 2: 26064466 ), ( Intended Use: Automobiles ), ( Misc Fitment Notes: See Notes ), ( Manufacturer Warranty: 1 Year ), ( UPC: 197295004865 )

Review CARLIGHTS360 Chevy Express Transmission Control Solenoid Metal Plastic fits 1500 2003–2008

The **Carlights 360 ALX-PAU-SI-TCS374-CLA13 Transmission Control Solenoid** is a high-performance, precision-engineered replacement part designed specifically for the **2003 2008 Chevrolet Silverado 1500** trucks equipped with the **4L60-E, 4L65-E, or 4L70-E automatic transmissions**. This solenoid is a critical component of the transmission s control system, responsible for regulating hydraulic flow to the valve body, ensuring smooth and efficient shifting, clutch engagement, and overall transmission performance. Crafted from durable **high-grade aluminum** with a **360-degree flow design**, this solenoid maximizes hydraulic efficiency, reducing internal friction and preventing premature wear on the transmission s internal components. The **precision-machined internal passages** allow for optimal fluid circulation, which helps maintain consistent shifting behavior, whether you're hauling heavy loads, towing, or cruising on the highway. Unlike generic or aftermarket alternatives, this solenoid is **directly compatible** with the GM 4-speed automatic transmissions found in these model years, eliminating the need for modifications or additional adapters. Its **sealed construction** ensures resistance to contamination, while the **robust mounting design** guarantees a secure and leak-free installation. Whether you're restoring a classic Silverado, upgrading an older truck, or simply maintaining peak performance, this solenoid delivers the reliability and responsiveness expected from a premium automotive component. Built to meet or exceed OEM specifications, it s an ideal choice for mechanics, DIY enthusiasts, and fleet operators seeking long-lasting durability and trouble-free operation.

Buying the **Carlights ALX-PAU-SI-TCS374-CLA13 transmission control solenoid** for a 2003 2008 Chevrolet Silverado 1500 (4L60E/4L65E transmission) has both advantages and drawbacks. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.

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### **Pros of Buying This Part**

1. **Direct Fitment and Compatibility**

The ALX-PAU-SI-TCS374-CLA13 is specifically designed for the 4L60E and 4L65E transmissions found in 2003 2008 Chevy 1500 trucks. It replaces the stock transmission control solenoid (TCS) without requiring modifications, ensuring an easy swap. The part number includes the correct wiring harness and mounting configuration for your vehicle, reducing the risk of installation errors.

2. **Improved Shift Performance and Reliability**

The ALX solenoid is often marketed as an upgraded version of the stock unit, offering smoother shifts, better shift response, and reduced wear on the transmission. Many users report fewer rough shifts, especially in cold starts or under heavy loads. The improved internal design may also help prevent common issues like delayed engagement or erratic shifting caused by a failing stock solenoid.

3. **Compatibility with Aftermarket Tuning**

This solenoid is frequently used in conjunction with aftermarket performance chips or ECU tuners (e.g., Haltech, DiabloSport, or APEXI). The upgraded solenoid can better handle the increased power and revised shift points introduced by tuning, reducing the risk of transmission damage or premature failure. It s a popular choice among truck enthusiasts who modify their vehicles for performance.

4. **Durability and Longevity**

The ALX solenoid is constructed with higher-quality materials than the stock unit, which may be prone to corrosion or internal wear over time. The upgraded version is designed to last longer, especially in harsh conditions (e.g., extreme temperatures, heavy towing, or frequent stop-and-go driving). Many customers report that this solenoid outlasts the OEM part by several years.

5. **Widely Available and Trusted Brand**

Carlights is a well-known brand in the aftermarket automotive parts industry, particularly for transmission components. The part is readily available from multiple sellers (e.g., Amazon, RockAuto, eBay, or specialty transmission shops), and there is a large user base with reviews and troubleshooting resources. This makes it easier to find support or replacements if needed.

6. **Cost-Effective Upgrade**

While not the cheapest option, the ALX solenoid is often priced competitively compared to other aftermarket solenoids (e.g., Mopar, ACDelco, or third-party brands). For the price, it offers significant improvements over the stock part, making it a cost-effective upgrade for those experiencing transmission issues or seeking better performance.

7. **Easy Installation**

The solenoid is a straightforward bolt-on replacement, requiring minimal tools (socket set, torque wrench, and possibly a scan tool for programming). Most users can install it in under an hour without specialized training. The included wiring harness ensures a clean connection, reducing the risk of electrical issues.

8. **Positive User Feedback**

Many owners of 2003 2008 Silverados report noticeable improvements in transmission behavior after installing this solenoid. Common benefits include:

- Fewer rough or delayed shifts.

- Improved cold-weather performance.

- Reduced transmission fluid contamination (since the solenoid may wear less than the stock unit).

- Better compatibility with performance modifications.

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### **Cons of Buying This Part**

1. **Not a Universal Fix for All Transmission Issues**

While the solenoid can improve shift quality, it will not address other underlying transmission problems such as:

- Worn clutches or bands.

- Low or contaminated transmission fluid.

- Faulty torque converter.

- Internal transmission damage (e.g., from overheating or severe abuse).

If your transmission has deeper issues, replacing just the solenoid may provide temporary relief but not a permanent solution. A full transmission rebuild or fluid change may still be necessary.

2. **Requires Proper Programming or Calibration**

Some users report that the ALX solenoid may not function optimally unless the transmission control module (TCM) is reprogrammed or recalibrated. This is particularly true if you ve previously modified the transmission or ECU. Without proper programming, the solenoid might not shift correctly or could cause erratic behavior. You may need to:

- Use a scan tool to reset the TCM.

- Flash the TCM with updated software (if available for your year).

- Consult a transmission specialist for recalibration.

3. **Potential for Incompatibility with Stock ECU**

In rare cases, the upgraded solenoid s electrical signature may not match the stock ECU s expectations, leading to check engine lights or transmission codes (e.g., P0740, P0741, or P0742). This is more likely if the vehicle has not been tuned or if the TCM is outdated. Most users do not encounter this issue, but it s worth researching before purchase.

4. **Limited Warranty or Return Policy**

While Carlights offers a warranty (typically 1 2 years), the terms may vary depending on the seller. Some online retailers (e.g., Amazon) may have stricter return policies, especially if the part is opened or installed. Always check the warranty details and seller policies before purchasing to avoid surprises.

5. **Mixed Reviews on Longevity in Extreme Conditions**

While the ALX solenoid is generally durable, some users in extreme environments (e.g., very hot climates, heavy towing, or off-road use) report that it may still fail prematurely if the transmission fluid is not changed regularly or if the vehicle is subjected to excessive stress. The solenoid is not indestructible, and proper maintenance (fluid changes, cooling system checks) is still critical.

6. **May Not Be Necessary for Minor Issues**

If your transmission is only experiencing very minor shift roughness (e.g., occasional hesitation during gear changes) and the fluid is clean, replacing the solenoid may be overkill. In such cases, a simple fluid change or valve body flush might resolve the issue without the cost of an upgraded solenoid.

7. **Installation Risks if Not Done Correctly**

While the installation is straightforward, mistakes can occur, such as:

- Improper torque on the solenoid bolt, leading to leaks.

- Incorrect wiring connections, causing electrical issues.

- Failure to bleed the transmission system properly, leading to air in the lines.

These risks are mitigable with careful attention to detail, but they can complicate the process for inexperienced DIYers.

8. **Price Point May Be High for Basic Use**

For drivers who only need a replacement solenoid due to failure (not performance tuning), the ALX solenoid may be more expensive than a basic OEM or generic aftermarket part. However, the long-term benefits often justify the cost for performance-oriented users.

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### **Conclusion**

The **Carlights ALX-PAU-SI-TCS374-CLA13 transmission control solenoid** is a strong choice for owners of 2003 2008 Chevy 1500 trucks with 4L60E/4L65E transmissions, particularly those experiencing rough shifts, delayed engagement, or issues related to a failing stock solenoid. It offers noticeable improvements in shift quality, reliability, and compatibility with aftermarket tuning, making it a popular upgrade among enthusiasts. The part is well-supported, easy to install, and built to last longer than the OEM unit.

However, it is not a magic fix for all transmission problems, and it may require additional steps (such as TCM programming) to function optimally. If your transmission has deeper issues, a solenoid replacement alone may not be sufficient. Additionally, the part s effectiveness depends on proper installation and maintenance (e.g., regular fluid changes).

For most users, the benefits outweigh the drawbacks, especially if you are tuning your vehicle or notice significant shift issues. If you re on a tight budget or only need a basic replacement, a lower-cost solenoid might suffice, but the ALX solenoid is a reliable and high-quality option for those seeking an upgrade.

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### **Recommendation**

**Buy the Carlights ALX-PAU-SI-TCS374-CLA13 solenoid if:**

- You are experiencing rough, delayed, or erratic shifts in your 2003 2008 Chevy 1500.

- You plan to tune your vehicle or have already done so, as the solenoid improves compatibility with performance modifications.

- You want a durable, long-lasting replacement that outperforms the stock unit.

- You are comfortable with basic installation and may need to recalibrate the TCM (consult a professional if unsure).

- You value brand reputation and want a widely supported part with good user feedback.

**Avoid or reconsider if:**

- Your transmission issues are severe (e.g., grinding, leaks, or complete failure), as a solenoid replacement alone may not solve the problem.

- You are on a very tight budget and only need a basic replacement (though the ALX solenoid is still a good value).

- You are not comfortable with minor electrical or programming adjustments (e.g., TCM resets).

- You ve never modified your vehicle before and want the simplest possible fix (a fluid change or valve body flush might suffice for minor issues).

**Final Verdict:**

For the majority of 2003 2008 Chevy 1500

Details:

Misc Notes 1: CONTROL SOLENOI. Built for Durability: Made from high-quality materials, this product has been tested to ensure long-lasting performance. Part: Transmission Control Solenoid. Material: Metal, Plastic.

CarLights360 For Chevy Express 1500 2003 04 05 06 07 2008 Transmission Control Solenoid Metal, Plastic Blade Terminal Push On Attachment Method Square Connector 1 Female 26094827: Item condition: Brand New in Original Box. OEM Numbers: 26094827, 26064466. Terminal Type: Blade. Please refer to manufacturer for warranty information.

Contents: Solenoid. OEM Part #:26094827 26064466. All products ship in pristine and original manufacturer packaging. Brand New - Sealed in a Box.

part #: alxpausitcs374cla13 price

  • $84.97

specifications chvyacheatercontrols:

  • for makes: Chevy
  • for years: 2003-2008
  • brand: Carlights360
  • mpn: Alx-pau-si-tcs374-cla13
  • part type: Control Transmission Solenoid
  • features: Easy Installation
  • oe/oem part number: 26094827
  • material: Metal, Plastic
  • item height: 8.500
  • item length: 4.000
  • item weight: 0.2500
  • item width: 1.500
  • fitment type: Direct Replacement
  • generic keywords 1: Part
  • oem equivalent part number 2: 26064466
  • intended use: Automobiles
  • misc fitment notes: See Notes
  • manufacturer warranty: 1 Year
  • upc: 197295004865

general chvyacheatercontrols:

  • Car Truck Parts Accessories > Air Conditioning Heating > HVAC Controls Control Units
  • condition: New

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for makes: chevy, for years: 2003-2008, part type: control transmission solenoid, features: easy installation, oe/oem part number: 26094827, item height: 8.500, item length: 4.000, item weight: 0.2500, item width: 1.500, fitment type: direct replacement, generic keywords 1: part, oem equivalent part number 2: 26064466, intended use: automobiles, misc fitment notes: see notes, manufacturer warranty: 1 year,
category: auto parts > car truck parts accessories > air conditioning heating > hvac controls control units, material: metal, plastic, sku: 11772529745397632,
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