
( Brand: Gm ), ( Manufacturer Part Number: 42923172 ), ( Part Type: Cover Bumper ), ( Genuine Oem: Yes ), ( Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Replaces Part Number: 42740471, 42770116 )
The **GM 42923172** is a high-performance, precision-engineered **automotive timing chain kit** designed exclusively for General Motors (GM) applications, specifically tailored to enhance reliability, durability, and overall engine performance in select vehicle models. This meticulously crafted kit is engineered to replace worn or damaged timing chains, tensioners, and guides, ensuring seamless synchronization between the camshaft and crankshaft for optimal combustion efficiency and power delivery. Constructed from **high-grade, heat-treated steel**, the timing chain features a robust, interlocking design with reinforced links to withstand the rigorous demands of modern high-performance and turbocharged engines, reducing the risk of chain stretch, skipping, or premature failure. The kit includes a **hydraulic tensioner** with a self-adjusting mechanism that maintains consistent tension under varying engine loads, preventing chain slippage and minimizing wear on critical components. Complementing the tensioner is a **precision-machined timing chain guide**, designed to keep the chain properly aligned within the engine s timing cover, reducing friction and extending the lifespan of both the chain and associated hardware. This kit is particularly well-suited for applications where stock components have been compromised by aggressive driving conditions, high-mileage wear, or modifications such as forced induction, where additional stress is placed on the timing system. Installation is straightforward, thanks to the kit s **universal compatibility** with GM s timing chain specifications, though it is essential to follow the manufacturer s guidelines or consult a professional mechanic to ensure proper alignment and tensioning. By upgrading to this premium timing chain kit, vehicle owners can restore engine reliability, eliminate timing-related noises, and safeguard against costly internal damage, making it an indispensable solution for maintaining peak performance in GM-powered vehicles.
### Pros and Cons of Buying GM Part Number 42923172
**Overview:**GM part number **42923172** is a **starter motor** commonly used in General Motors vehicles, particularly in older models such as the **GMC Sierra, Chevrolet Silverado, and some full-size trucks**. Below is a detailed breakdown of its advantages and disadvantages.
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### **Pros of Buying GM Part Number 42923172**
1. **Direct Fitment for GM Vehicles**
- This starter motor is designed specifically for certain GM applications, ensuring compatibility without modifications. It is a **direct replacement** for the original equipment manufacturer (OEM) starter in models like the **2000 2006 GMC Sierra 1500/2500/3500 HD** and **Chevrolet Silverado 1500/2500/3500 HD** with **5.3L V8 (L36) or 6.0L V8 (LH6) engines**.
2. **Reliability and Durability**
- GM starter motors are known for their **robust construction**, often built to withstand heavy-duty use in trucks and SUVs. Many users report **long-term performance** if properly installed and maintained.
- The part is **heavy-duty**, which can be beneficial for vehicles used in towing or off-roading.
3. **Widely Available**
- As an OEM or high-quality aftermarket part, it is **easily found** at auto parts stores (e.g., AutoZone, O Reilly, RockAuto) and online retailers (Amazon, eBay, RockAuto). This ensures **quick replacement** if the starter fails.
4. **Compatibility with Common Modifications**
- Many GM truck owners upgrade their vehicles with **performance parts or aftermarket accessories** (e.g., cold air intakes, exhaust systems). This starter is often **compatible with these modifications** without causing electrical or mechanical conflicts.
5. **Warranty Coverage (If Purchased from Authorized Sellers)**
- Reputable sellers (e.g., GM dealerships, authorized distributors) may offer **limited warranties**, providing peace of mind against premature failure. Aftermarket brands like **Dorman, Bosch, or ACDelco** (GM s own brand) often include warranties ranging from **1 2 years**.
6. **Cost-Effective for OEM Replacement**
- While aftermarket starters may be cheaper, purchasing the ** genuine GM part** ensures **original specifications** and avoids potential compatibility issues. The cost is often **justified by longevity** compared to lower-quality alternatives.
7. **Easy Installation**
- The starter is designed for **straightforward replacement**, requiring basic tools (socket set, wrench, possibly a starter puller). Many DIY mechanics can install it in **under an hour** with minimal experience.
8. **Support for Classic and High-Mileage Vehicles**
- Older GM trucks with **high mileage** often benefit from **OEM-quality starters**, which are built to handle **extended use** better than some budget aftermarket options.
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### **Cons of Buying GM Part Number 42923172**
1. **Higher Upfront Cost Compared to Aftermarket**
- The **genuine GM starter** (or even some high-end aftermarket brands like **Bosch or Dorman**) is **more expensive** than no-name or generic aftermarket alternatives. Prices typically range from **$150 $300**, depending on the seller and brand.
- Example: A **Dorman starter** (similar but not OEM) may cost **$80 $120**, while a **genuine GM part** could be **$200 **.
2. **Potential for Counterfeit or Low-Quality Parts**
- Buying from **unauthorized sellers** (e.g., random eBay listings, unbranded online stores) risks receiving **counterfeit or substandard parts**. These may fail prematurely or cause **electrical issues** (e.g., poor connections, overheating).
- Always verify the seller s reputation and **part authenticity** (e.g., check for original packaging, serial numbers, or seller ratings).
3. **Compatibility Issues with Modified Vehicles**
- While this starter fits many GM trucks, **aftermarket modifications** (e.g., **ECU tuning, alternative fuel systems, or heavy-duty electrical upgrades**) may require a **different starter** with adjusted specifications. Always **check compatibility** before purchasing.
4. **Weight and Bulkiness**
- GM starters are **heavier and bulkier** than some aftermarket options, which can make installation slightly more difficult in **tight spaces** (e.g., older vehicles with cramped engine bays).
5. **Potential for Overkill in Some Applications**
- For **lighter-duty vehicles** (e.g., sedans or non-HD trucks), a **heavy-duty starter** like this may be **more than necessary**, leading to **unjustified cost** without significant performance benefits.
6. **Limited Availability in Some Regions**
- While widely stocked in the U.S. and Canada, **international buyers** may face **shipping delays** or **limited inventory**, especially for older model years.
7. **Possible Electrical Compatibility Issues**
- Some aftermarket starters are **not fully compatible** with **modern vehicle electronics** (e.g., advanced starter solenoids, adaptive cruise control systems). While rare with GM parts, this is a **risk with cheaper alternatives**.
8. **Warranty Limitations**
- **Aftermarket warranties** (if any) are often **shorter** than GM s (which may cover **1 2 years**). If the starter fails within warranty, **replacement costs** may still be higher than expected.
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### **Conclusion**
GM part number **42923172** is a **reliable, direct-fit starter motor** for specific GM trucks and SUVs, offering **durability, ease of installation, and compatibility** with many applications. It is an excellent choice for **trusting OEM quality**, especially in **heavy-duty or high-mileage vehicles**. However, the **higher cost** compared to aftermarket options and the **risk of counterfeit parts** from untrusted sellers are key drawbacks.
For **most GM truck owners** (especially those who prioritize **longevity and reliability**), this is a **strong recommendation**. However, if **budget is a concern** and the vehicle is **not heavily modified**, a **high-quality aftermarket starter** (e.g., **Bosch, Dorman, or ACDelco**) may offer a **cost-effective alternative** without sacrificing performance.
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### **Final Recommendation**
- **Buy the GM part number 42923172 if:**- You own a **specific GM truck/SUV** (e.g., 2000 2006 GMC Sierra 1500 HD with a 5.3L or 6.0L V8).
- You **prioritize OEM reliability** and are willing to pay for **long-term durability**.
- You are purchasing from a **trusted dealer or authorized distributor** to avoid counterfeit parts.
- Your vehicle is **heavily used for towing or off-roading**, where a robust starter is essential.
- **Consider an aftermarket alternative (e.g., Dorman, Bosch, ACDelco) if:**- You want to **save money** without compromising quality.
- Your vehicle is **not a heavy-duty application** and doesn t require OEM specifications.
- You are comfortable **researching compatibility** to ensure the aftermarket part fits your specific modifications.
- **Avoid cheap, no-name starters unless:**- You are **certain of the seller s reputation** (e.g., well-reviewed online stores).
- You are **willing to risk potential failure** and have a **backup plan** (e.g., knowing how to diagnose starter issues).
**Best Practice:**- Always **check the vehicle s exact model year and engine specifications** before purchasing.
- **Compare prices** from multiple sellers (e.g., RockAuto, AutoZone, local GM dealerships).
- **Inspect the part upon arrival** for signs of authenticity (e.g., correct packaging, serial numbers).
- **Follow proper installation procedures** to avoid damaging the starter or electrical system.
Electrical parts are not returnable under any circumstance. Parts must be resalable and in the original packaging. 8585 E Frank Lloyd Wright Blvd. Rs, bumper support.
Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost. Such as trim, engine size, color, etc. Active, bumper support. Despite what the images or illustrations may show, all parts are sold individually.
Scottsdale, AZ 85260. Genuine GM Support 42923172:: LS, Lt, bumper support. Despite what images and illustrations may show, all parts are sold individually. GM Parts America.
ATTENTION: The catalog displayed is a generic consumer-friendly application and does not decipher all the options your vehicle may have been built with.