1. Lock Hardware Deals
  2. sku: 31422857880894752
  3. CADILLAC 20204104

CADILLAC 20204104 Lh Driver Rear Door Latch Lock Actuator 181.GM6C05

fits model: Escalade, Yukon, Tahoe. make: Cadillac. year: 2003–2006.

20204104 Cadillac 2003-2006 Yukon Tahoe Escalade Lh Driver Rear Door Latch Lock Actuator

( Manufacturer Part Number: 20204104 ), ( Model: ESCALADE ), ( Part Type: Actuator Driver Door Latch Lock ), ( Conditions Options: Lh Driver Rear Door Latch Lock Actua ), ( Genuine Oem: Yes ), ( Ipn: 181.gm6c05 ), ( Year: 2005 )

Review CADILLAC 2020 4104 Lh Driver Rear Door Latch Lock Actuator fits ESCALADE YUKON TAHOE 2003–2006

The **Cadillac 20204104 Driver Rear Door Latch Lock Actuator** is a precision-engineered component designed exclusively for the **2003 2006 Chevrolet/GMC Yukon, Tahoe, and Cadillac Escalade (LH models)**, ensuring seamless operation of the rear passenger-side door latch mechanism. This high-quality actuator is crafted to meet or exceed OEM specifications, delivering reliable performance with every engagement. Engineered from durable materials, including robust metal and corrosion-resistant coatings, it is built to withstand the demands of daily driving, harsh weather conditions, and extended use without compromising functionality. The actuator features a smooth, low-friction design that minimizes wear on the latch system, reducing the risk of premature failure and ensuring a consistent, quiet operation critical for maintaining the refined driving experience expected from these full-size SUVs. Whether used in a replacement scenario or as a preventive maintenance upgrade, this actuator integrates seamlessly with the vehicle s existing latch mechanism, providing a secure and responsive locking mechanism for both the door and the rear window, if applicable. Its compatibility with the LH (left-hand drive) platform ensures a perfect fit, eliminating the need for modifications or adjustments. Ideal for mechanics, DIY enthusiasts, or fleet managers seeking long-lasting, dependable parts, this actuator is a straightforward solution for restoring or enhancing the reliability of the rear door latch system in these iconic vehicles.

### Pros and Cons of Buying a Cadillac 2003 2006 Yukon, Tahoe, or Escalade LH Driver Rear Door Latch Lock Actuator (Part Number: 20204104)

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

1. **Direct Fitment** The part number **20204104** is designed specifically for the **2003 2006 Cadillac Yukon, Tahoe, and Escalade LH models**, ensuring compatibility without modification. This reduces the risk of incorrect installation and potential damage.

2. **Reliability of OEM Quality** Cadillac vehicles of this era were built with durable components, and purchasing an **original equipment manufacturer (OEM) or high-quality aftermarket replacement** ensures reliability. The latch lock actuator is a critical safety and convenience component, and a well-made part minimizes future failures.

3. **Prevents Further Damage** A faulty rear door latch lock actuator can lead to **malfunctioning doors, difficulty locking/unlocking, or even complete door failure**. Replacing it early prevents **wear on the latch mechanism, door seals, or wiring harness**, which could escalate into more expensive repairs.

4. **Improves Convenience and Safety** A properly functioning rear door latch ensures that doors **lock securely, remain closed during motion, and operate smoothly** with power locks. This is particularly important for **safety (preventing doors from opening unexpectedly) and security (preventing unauthorized access)**.

5. **Cost-Effective Compared to Full Door Replacement** Replacing just the **actuator** (typically **$50 $150 for the part**) is far cheaper than replacing an entire **door panel, latch assembly, or wiring harness** (which could cost **$500 $1,500 ** in labor and parts).

6. **Easy Installation** The actuator is **accessible from behind the door panel** and does not require complex disassembly. Most mechanics or even **DIYers with basic tools** can replace it in **1 2 hours**, depending on experience.

7. **Warranty Coverage Options** If purchasing from a **reputable dealer, online retailer, or auto parts store with a warranty**, you may get **30 60 days or even lifetime coverage** on the part, providing peace of mind against premature failure.

8. **Compatibility with Common Modifications** Since these vehicles are still driven in high numbers, **aftermarket and OEM parts are widely available**, making it easier to find replacements if needed in the future.

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

1. **Potential Counterfeit Parts** Buying from **unverified sellers (e.g., unbranded online marketplaces, eBay without feedback, or unknown local shops)** risks receiving **fake or low-quality parts**. These may **fail quickly, not fit properly, or damage the door mechanism** upon installation.

2. **Age of the Vehicle May Affect Longevity** The **2003 2006 Cadillac models** are **15 20 years old**, meaning:

- **Wiring harnesses may be degraded**, leading to **electrical issues** even after replacing the actuator.

- **Rust or corrosion** in the door frame or latch area could **short-circuit or bind the new actuator**.

- **Power lock systems may be failing in other components**, requiring **additional repairs** beyond just the actuator.

3. **Labor Costs Can Be High** While the part itself is affordable, **labor charges for installation** (especially at dealerships) can range from **$100 $300**, depending on the shop. Independent mechanics may charge less but could still add up.

4. **Possible Underlying Issues** If the **actuator fails repeatedly**, it may indicate:

- **Faulty wiring** (e.g., corroded connectors, blown fuses).

- **Power lock motor failure** (if the actuator is part of a larger system).

- **Door panel damage** (e.g., bent latch, broken springs).

In such cases, a **single replacement may not solve the problem**, leading to **additional expenses**.

5. **Limited Aftermarket Support** Unlike newer vehicles, **finding specialized tools or diagnostic help** for these older Cadillacs can be **challenging**. Some mechanics may not be familiar with the **specific latch mechanisms** of these models.

6. **Potential for Misdiagnosis** If the **symptoms (e.g., door not locking, intermittent locking)** are caused by something other than the actuator (e.g., **bad ground, fuse, or relay**), replacing just the actuator **without proper diagnostics** may not fix the issue.

7. **Environmental Factors** If the vehicle is **exposed to extreme weather (salt, humidity, heat)**, the **actuator or wiring** may degrade faster, leading to **shorter lifespan** than expected.

8. **Resale Value Impact** While replacing a **critical safety component** is wise, **older Cadillacs with high mileage** may still have **lower resale value**, meaning the repair may not **increase the vehicle s worth** significantly.

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### **Conclusion**

Replacing the **Cadillac 2003 2006 Yukon/Tahoe/Escalade LH driver rear door latch lock actuator (20204104)** is a **practical and cost-effective solution** for restoring proper door function. The **pros heavily outweigh the cons** if:

- You **purchase from a trusted source** (OEM, reputable aftermarket brand, or well-reviewed seller).

- You **address any underlying electrical or mechanical issues** (e.g., wiring, fuses, door latch).

- You **install it correctly** (or have a professional do so).

However, if the vehicle has **multiple electrical failures, severe rust, or high mileage**, the repair may be **a temporary fix** rather than a permanent solution. In such cases, **budgeting for additional diagnostics or a full door panel inspection** is advisable.

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### **Recommendation**

1. **Verify the Symptom** Confirm that the **actuator is indeed the problem** by:

- Testing the **power locks** (does the door work manually?).

- Checking for **fuses, relays, or wiring issues** before replacing the actuator.

- Inspecting the **door latch and mechanism** for damage.

2. **Purchase from a Trusted Source**

- **OEM (Original Equipment Manufacturer)** parts from **Cadillac dealers** (most reliable but expensive).

- **High-quality aftermarket brands** like **Dorman, ACDelco, or Spectra** (good balance of cost and reliability).

- Avoid **unknown sellers** to prevent counterfeit parts.

3. **Budget for Potential Additional Work**

- If the **wiring is corroded**, clean or replace connectors.

- If the **door latch is worn**, consider replacing it alongside the actuator.

- If the **power lock motor is failing**, the actuator may not last long without addressing the root cause.

4. **DIY or Professional Installation?**

- **DIY Installation**: Feasible for **mechanically inclined individuals** with basic tools. Follow **step-by-step guides** (e.g., from **Chilton, Haynes, or YouTube tutorials**).

- **Professional Installation**: Recommended if you re **unsure about wiring, door panel removal, or electrical work** to avoid **voiding warranties or causing further damage**.

5. **Consider Long-Term Vehicle Health**

- If the vehicle has **high mileage (150,000 miles) or multiple electrical issues**, weigh the **cost of repairs against the vehicle s remaining value**.

- If the car is **a daily driver**, the repair is **worthwhile**. If it s a **project car or infrequently used**, assess whether the **benefit outweighs the cost**.

### **Final Verdict**

**Buy and replace the actuator if:**

The part is **authentic and compatible**.

The **symptoms clearly point to a faulty actuator**.

You **address any related electrical or mechanical issues**.

The **vehicle is otherwise reliable** and worth the investment.

**Avoid or proceed with caution if:**

The **vehicle has widespread electrical problems**.

The **door latch or wiring is severely damaged**.

You re **unable to verify the part s quality** from the seller.

For most cases, **this is a straightforward and necessary repair** that **restores safety and convenience** without major drawbacks. Just ensure **proper sourcing and installation** for the best results.

Details:

Please See full to see our listing. 2003 2006 YUKON TAHOE ESCALADE LH DRIVER REAR DOOR LATCH LOCK ACTUATOR 2020 4104. This part fits the following. Removed from 2005 ESCALADE with 1980 miles.

Part Comments: LH DRIVER REAR DOOR LATCH LOCK ACTUATOR 2020 4104. Donor Vehicle model: ESCALADE Year: 2005 Inventory #: 1128 Mileage: 1980 not available or unknown Stock Number: 1074 Notes: Part Comments Short: LH DRIVER REAR DOOR LATCH LOCK ACTUA Long: ACTUATOR 2020 4104.

part #: 20204104 price

  • $29.95

specifications carlockiio:

  • for models: Escalade, Yukon, Tahoe
  • for makes: Cadillac
  • for years: 2003-2006
  • mpn: 20204104
  • model: Escalade
  • part type: Actuator Driver Door Latch Lock
  • conditions options: Lh Driver Rear Door Latch Lock Actua
  • genuine oem: Yes
  • ipn: 181.gm6c05
  • year: 2005

general carlockiio:

  • condition: Used
  • Car Truck Parts Accessories > Exterior Parts Accessories > Exterior Locks Lock Hardware

returns carlockiio:

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

shipping carlockiio:

  • transit: 4-7 Days
  • type: Fixed
  • service: Standard
  • class: Standard
  • cost: $0.00

offer carlockiio:

  • started: May 8, 2026
  • quantity: 1
  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • best offers: True

seller carlockiio:

  • rating: 99.6%
  • city: Ray, Michigan
  • # reviews: 8480

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for models: escalade, yukon, tahoe, for makes: cadillac, for years: 2003-2006, part type: actuator driver door latch lock, conditions options: lh driver rear door latch lock actua, genuine oem: yes, year: 2005,
manufacturer: cadillac, category: auto parts > car truck parts accessories > exterior parts accessories > exterior locks lock hardware, sku: 31422857880894752,
Cadillac 20204104 Is Similar To:
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1 offer $29.95 USD
  • Used. Offer #1 priced at $29.95 + $0.00 shipping estimate = $29.95* total. This part fits the following:. Removed from 2005 ESCALADE with 198000 miles.FREE SHIPPING

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