MAZDA 4742036 Marker Light

( Manufacturer Part Number: 4742036 ), ( Manufacturer Warranty: Unspecified Length ), ( Genuine Oem: No ), ( Interchange Item Code: 168 ), ( Color: White 25d ), ( Type: Side Marker Light )

Review MAZDA Used Side Marker Light Grade fits CX-5 2021

The **Mazda 4742036 Marker Light** for the **2021 Mazda CX-5** is a precision-engineered component designed to enhance both the safety and aesthetic appeal of this popular compact SUV. Crafted with Mazda s signature attention to detail, this marker light is a seamless integration of functionality and style, ensuring optimal visibility while maintaining the vehicle s sleek, modern design language. Engineered from high-quality, durable materials, the marker light features a robust construction that resists fading, cracking, or yellowing over time, even under prolonged exposure to harsh weather conditions, UV rays, or environmental contaminants. Its aerodynamic shape is meticulously contoured to complement the CX-5 s distinctive LED taillight cluster, blending seamlessly with the vehicle s overall silhouette while adhering to strict automotive safety regulations. The marker light operates with a bright, crisp illumination typically emitting a clear amber hue that ensures maximum visibility during low-light conditions, night driving, or adverse weather, thereby improving the CX-5 s presence on the road without compromising its signature understated elegance. Whether navigating city streets, highway merges, or rural backroads, this marker light serves as a reliable sentinel, signaling the vehicle s presence with clarity and precision. Beyond its functional benefits, the 4742036 marker light also contributes to the CX-5 s refined appearance, reinforcing Mazda s commitment to a harmonious blend of performance, safety, and design. As part of the vehicle s original equipment or a high-quality aftermarket replacement, it exemplifies Mazda s dedication to delivering components that meet the highest standards of quality and reliability.

### Pros and Cons of Buying a 2021 Mazda CX-5 with the Part Number 4742036 (Marker Light)

#### **Overview of the Part**

The part number **4742036** refers to the **marker light assembly** for the 2021 Mazda CX-5. Marker lights are small, low-beam lights located at the rear and front corners of a vehicle, primarily for visibility in low-light conditions. While they are not critical for safety like brake lights or headlights, they contribute to overall visibility and compliance with regulations.

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### **Pros of Purchasing This Part**

1. **Ensures Compliance with Regulations**

- Marker lights are legally required in most regions. Replacing a faulty or missing marker light ensures the vehicle meets road safety standards, avoiding potential fines or registration issues.

2. **Improves Vehicle Visibility**

- Functional marker lights enhance the vehicle s visibility to other drivers, especially in poor lighting conditions (e.g., dawn, dusk, or rainy weather). This can reduce the risk of accidents caused by poor visibility.

3. **Prevents Further Damage**

- If the marker light assembly is damaged or corroded, moisture or debris can seep into the wiring or housing, potentially causing short circuits or electrical failures in other nearby components (e.g., turn signals or brake lights). Replacing it proactively can prevent more extensive (and costly) repairs.

4. **Maintains Resale Value**

- A well-maintained vehicle with all functional lights is more attractive to buyers. If you plan to sell the CX-5 later, addressing minor issues like faulty marker lights can help justify a higher asking price.

5. **Easy Installation**

- Marker light assemblies are typically straightforward to replace. The 2021 CX-5 s design allows for relatively easy access to the rear and front corners, meaning this repair can often be done at home with basic tools (e.g., socket wrench, screwdriver, and possibly a trim tool for plastic panels).

6. **Cost-Effective**

- Replacing a single marker light is significantly cheaper than repairing electrical damage caused by neglecting the issue. The part itself is inexpensive, and labor costs are minimal if done DIY.

7. **Consistency with Mazda s Design**

- Mazda vehicles are known for their durability and consistent part availability. The 4742036 part is likely to be compatible with other CX-5 models (2017 2023) and may even fit other Mazda models with similar lighting setups (e.g., CX-30, CX-3).

8. **Aesthetic Completeness**

- While not a safety-critical feature, fully functional marker lights contribute to the vehicle s polished appearance. Missing or flickering lights can make the car look neglected.

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### **Cons of Purchasing This Part**

1. **Minimal Direct Impact on Performance**

- Unlike engine, suspension, or braking components, marker lights do not affect the vehicle s performance, fuel efficiency, or handling. Their primary role is visibility, so their replacement is more about compliance and aesthetics than functionality.

2. **Potential for Counterfeit Parts**

- Purchasing aftermarket or counterfeit parts (especially from unverified sellers) could result in poor-quality lights that fail quickly or do not fit properly. Always buy from authorized Mazda dealers or reputable online retailers to avoid this risk.

3. **DIY Installation Challenges**

- Tight spaces around the wheel arches.

- Plastic trim panels that require careful removal to avoid damage.

- Wiring harnesses that may need careful reconnection.

- If unsure, professional installation may be necessary, adding to the cost.

4. **Part Availability and Pricing**

- While the 4742036 part is widely available, prices can vary significantly depending on the seller. New OEM parts from Mazda dealers are pricier than aftermarket alternatives, which may not always match the original quality.

5. **Possible Underlying Issues**

- If the marker light failure is due to a deeper problem (e.g., water intrusion, faulty wiring harness, or corrosion), replacing just the light may not be a permanent fix. In such cases, addressing the root cause (e.g., sealing the wheel housing or replacing the wiring) would be more cost-effective long-term.

6. **Time-Consuming for Busy Owners**

- If you are not mechanically inclined, spending time on a seemingly minor repair like this may not be ideal. Prioritizing more critical maintenance tasks (e.g., oil changes, tire rotations) might be more pressing.

7. **Environmental Concerns (If Disposing of Old Part)**

- If you are replacing the part rather than repairing it, disposing of the old marker light responsibly (e.g., recycling electronics) may require effort, depending on local regulations.

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### **Conclusion**

The **2021 Mazda CX-5 marker light (part 4742036)** is a relatively minor but important component for compliance, visibility, and long-term vehicle maintenance. The decision to replace it depends on your priorities:

- The light is visibly damaged, non-functional, or flickering.

- You are performing routine maintenance to keep the vehicle in top condition.

- You plan to sell the car soon and want to ensure all lights are working.

- You notice signs of water damage or corrosion around the light assembly.

- The issue is isolated to one light, and you suspect a broader problem (e.g., wiring corrosion or water intrusion).

- You are unsure about DIY installation and prefer to have a professional handle it.

- The cost of the part seems unusually high, and you suspect a counterfeit or overpriced item.

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### **Recommendation**

1. You are confident in your ability to install it yourself or have access to a trusted mechanic.

2. The part is sourced from an authorized Mazda dealer or a reputable aftermarket supplier (e.g., RockAuto, Amazon, or local auto parts stores with good reviews).

3. You prioritize completeness and compliance over minor cost savings.

- **Verify the part number:** Double-check that 4742036 is indeed the correct part for your CX-5 (some models may have slight variations).

- **Inspect the surrounding area:** Look for signs of water damage, rust, or loose wiring that could indicate a deeper issue.

- **Compare prices:** Get quotes from multiple sellers to ensure you re getting a fair deal.

- **Follow Mazda s repair guide:** Use Mazda s official service manual or a reliable online tutorial (e.g., YouTube) for step-by-step installation instructions.

- Testing the wiring harness with a multimeter to check for continuity.

- Inspecting the wheel housing or rear bumper for cracks or gaps allowing moisture in.

- Replacing the entire corner light assembly (if the marker light is part of a larger unit) for a more comprehensive fix.

For the average Mazda CX-5 owner, replacing a faulty marker light is a **low-risk, high-reward** task. It s an inexpensive way to maintain your vehicle s condition, ensure legal compliance, and avoid potential issues down the line. Unless the problem is part of a larger electrical or structural issue, prioritizing this repair is a smart move.

Details:

This part fits veg ices made in the following years 2021. Unless specified as Universal this is a direct fit Side Marker Light.

part #: 4742036 price

• $72.80

specifications sidemarkeligh:

• for models: Cx-5
• for makes: Mazda
• for years: 2021
• mpn: 4742036
• manufacturer warranty: Unspecified Length
• genuine oem: No
• interchange item code: 168
• color: White 25d
• type: Side Marker Light

general sidemarkeligh:

• Car Truck Parts Accessories > Lighting Lamps > Side Marker Light Assemblies
• condition: Used

payments sidemarkeligh:

• credit card: Mastercard
• other
• wallet: Paypal

shipping sidemarkeligh:

• class: Economy
• cost: $0.00
• service: UPS Ground Saver
• type: Fixed
• transit: 3-8 Days
• carrier: UPS

offer sidemarkeligh:

• started: May 19, 2026
• availability: In Stock
• options: Ship-to-home
• sold: 0
• best offers: True
• quantity: 1

returns sidemarkeligh:

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

seller sidemarkeligh:

• # reviews: 42
• city: Tooele, Utah
• rating: 100.0%

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