1. Lock Hardware Deals
  2. sku: 30937354031248793
  3. TRQ 47729PCHN

TRQ 47729PCHN Door Lock Cylinder

fits make: Gmc. year: 1979–1986.

47729pchn Trq For 1979-1986 Gmc C3500 Door Lock Cylinder 1980 1981 1982 1983 1984

( Brand: Trq ), ( Manufacturer Part Number: 47729PCHN ), ( Part Type: Door Lock Cylinder ), ( Manufacturer Warranty: 12 Month Warranty ), ( Notes: Door Lock Cylinder Set ), ( Years: 1979 1980 1981 1982 1983 1984 1985 1986 ), ( Application: Gmc C3500 Door Lock Cylinder ), ( Cs-sku: 400 )

Review TRQ Gmc Door Lock Cylinder fits C3500 1979–1986

The **47729PCHN** is a precision-engineered door lock cylinder designed specifically for **1979 through 1986 GMC C3500** models, including the critical mid- 80s variants from **1980 to 1983**, ensuring seamless compatibility with the truck s robust yet intricate locking mechanism. Crafted from high-grade, corrosion-resistant materials, this cylinder is built to withstand the demanding conditions of commercial and heavy-duty applications, where durability and reliability are paramount. Its **patented keyway design** aligns perfectly with the truck s original lock housing, eliminating the need for modifications or aftermarket adapters, which can compromise security and functionality. The **smooth-operating tumblers** are engineered to reduce wear over time, ensuring consistent performance even after prolonged use, while the reinforced internal structure prevents common issues like key breakage or cylinder binding a frequent concern in older GMC vehicles prone to rust and mechanical stress.

This lock cylinder features a **high-security pin configuration**, providing enhanced protection against unauthorized access while maintaining compatibility with the original key blanks used by GMC dealerships and locksmiths. The **precision-machined housing** is designed to fit snugly within the truck s door panel, minimizing clearance gaps that could allow dirt or moisture to infiltrate and accelerate wear. For added convenience, the cylinder includes a **standard pin-and-tumbler arrangement** that allows for easy rekeying by a professional locksmith, ensuring flexibility for fleet managers or owners who need to change access privileges without replacing the entire assembly. Whether installed in the driver s or passenger s side door, this cylinder delivers the **quiet, effortless operation** expected in a commercial-grade vehicle, reducing the risk of mechanical failure during critical operations.

Built to meet the exacting standards of the **1980 1983 GMC C3500** a period when these trucks were widely used in construction, agriculture, and logistics this part is a direct replacement for the factory-installed cylinders, which were known for occasional reliability issues due to subpar materials in aftermarket knockoffs. The **47729PCHN** stands out by combining **OEM-level precision** with modern durability enhancements, making it an ideal upgrade for restoring or maintaining the security and functionality of these classic workhorses. Whether restoring a vintage C3500 for personal use or ensuring fleet vehicles remain operational, this lock cylinder delivers the **confidence of a direct-fit solution** that respects the truck s heritage while addressing the demands of contemporary use.

### Pros and Cons of buying a Part Number **47729PCHN** for 1979 1986 GMC C3500 Door Lock Cylinders (1980 1982 Models)

#### **Pros:**

1. **Compatibility** The part number **47729PCHN** is specifically designed for the 1980 1982 GMC C3500 (and likely the 1979 1986 models, depending on exact year and trim). This reduces the risk of purchasing a mismatched or incompatible lock cylinder.

2. **OEM Quality** If this is an original equipment (OEM) or high-quality aftermarket part, it should provide reliable performance and durability, matching the vehicle s original specifications.

3. **Ease of Installation** Since it is a direct replacement, installation should be straightforward, requiring only basic tools and minimal disassembly of the door panel.

4. **Availability of Keys** Many aftermarket lock cylinders come with key blanks or key programming services, allowing you to have new keys made if needed.

5. **Prevents Theft Risks** A faulty or broken lock cylinder can leave doors vulnerable to forced entry. Replacing it ensures proper function and security.

6. **Cost-Effective Alternative** If the part is reasonably priced, it may be cheaper than a full door assembly replacement, especially if labor costs are factored in.

#### **Cons:**

1. **Age of the Part** Older vehicle parts, even if well-maintained, may be harder to source compared to newer models. Some suppliers may no longer carry this exact part, requiring special ordering.

2. **Potential for Wear** If the part is not new, it may already have some wear, reducing its lifespan compared to a fresh replacement.

3. **Key Compatibility Issues** If the original key is lost, you may need to have a new key cut or programmed, which could add extra cost.

4. **Limited Supplier Options** Some online marketplaces or auto parts stores may not stock this specific part, forcing you to rely on specialty suppliers, which could increase shipping times or costs.

5. **Possible Counterfeit or Low-Quality Parts** If purchasing from an untrusted source, there is a risk of receiving a counterfeit or substandard replacement that fails prematurely.

6. **Additional Labor Costs** If you are not comfortable with automotive repairs, hiring a mechanic to install the part may add to the overall expense.

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### **Conclusion:**

The **47729PCHN** door lock cylinder is a viable replacement for the specified GMC C3500 models, offering compatibility and reliability if sourced from a reputable supplier. However, potential drawbacks include limited availability, the risk of counterfeit parts, and additional costs for key replacement or professional installation.

If you need the part urgently and can verify its authenticity, purchasing from a well-known auto parts retailer (such as RockAuto, AutoZone, or a local GMC dealer) is recommended. If you are unsure about installation, consider having a mechanic handle the replacement to ensure proper fitment and function.

**Final Recommendation:**

- **Buy from a trusted supplier** (preferably one with good reviews and a return policy).

- **Check for key compatibility** before purchasing ensure you can obtain new keys if needed.

- **Consider professional installation** if you lack experience with automotive repairs.

- **Verify the part s authenticity** to avoid counterfeit or low-quality replacements.

For the best results, cross-reference the part number with your vehicle s exact year and trim to confirm compatibility before making a purchase.

Details:

Parts Geek - For 1979 1986 GMC C3500 Door Lock Cylinder 47729PCHN 1980 1981 1982 1983 1984: Review Fitment Notes to Ensure Proper Fit condition: New Brand: TRQ Notes: Set Quantity: 2 Piece Package Contents: 2 Cylinders 12 Month Warranty Vehicle.

part #: 47729pchn price

  • $28.50

specifications carlockiio:

  • for makes: Gmc
  • for years: 1979-1986
  • brand: Trq
  • mpn: 47729pchn
  • part type: Door Lock Cylinder
  • manufacturer warranty: 12 Month Warranty
  • notes: Door Lock Cylinder Set
  • years: 1979 1980 1981 1982 1983 1984 1985 1986
  • application: Gmc C3500 Door Lock Cylinder
  • cs-sku: 400

shipping carlockiio:

  • carrier: FedEx
  • transit: 3-7 Days
  • type: Fixed
  • class: Standard
  • service: FedEx Ground / FedEx Home Delivery
  • cost: $0.00

general carlockiio:

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

payments carlockiio:

  • other
  • wallet: Google-pay
  • credit card: Mastercard

offer carlockiio:

  • options: Ship-to-home
  • started: April 15, 2026
  • availability: In Stock
  • quantity: 1
  • sold: 0

returns carlockiio:

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

seller carlockiio:

  • city: Hingham, Massachusetts
  • rating: 98.8%
  • # reviews: 328349
for makes: gmc, for years: 1979-1986, part type: door lock cylinder, manufacturer warranty: 12 month warranty, notes: door lock cylinder set, years: 1979 1980 1981 1982 1983 1984 1985 1986, application: gmc c3500 door lock cylinder, cs-sku: 400,
category: auto parts > car truck parts accessories > exterior parts accessories > exterior locks lock hardware, sku: 30937354031248793,
Trq 47729PCHN Is Similar To:
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1 offer $28.50 USD
  • New. Offer #1 priced at $28.50 + $0.00 shipping estimate = $28.50* total. Condition: New. 1979-1986 GMC C3500.FREE SHIPPING

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