UNITED PACIFIC C555902 Door Latch Relay Rh 072017378458 55-59

( Brand: United Pacific ), ( Manufacturer Part Number: C555902 ), ( Type: Door Latches Components ), ( California Prop 65 Warning: True ), ( UPC: 072017378458 )

Review UNITED PACIFIC 55-59 Chevy Gmc Truck Door Latch Relay Rh

The **United Pacific C555902 55-59 Chevrolet and GMC Door Latch Relay** is a meticulously engineered aftermarket component designed to restore reliable functionality to the door latch mechanism in classic 1955 through 1959 Chevrolet and GMC vehicles. This relay serves as a critical electrical interface between the driver s door latch switch and the motorized latch actuator, ensuring smooth and consistent operation of the power door locks a feature that was increasingly common in mid-century GM models but often prone to failure due to aging wiring, corroded contacts, or mechanical wear. Crafted with precision, this relay features a robust, corrosion-resistant construction that mimics the original factory specifications, guaranteeing compatibility with the vehicle s existing wiring harness and latch system. The internal contacts are designed to handle the moderate current draw required by the latch motor without arcing or overheating, while the sturdy mounting bracket ensures a secure fit within the door panel, preventing rattles or misalignment that could lead to premature failure. Whether replacing a faulty original relay or upgrading an older vehicle to restore lost functionality, this United Pacific component delivers dependable performance, reducing the risk of intermittent lockouts, erratic engagement, or complete system failure. Ideal for restoration projects, classic car enthusiasts, and mechanics seeking a direct-fit solution, the C555902 relay combines durability with ease of installation, making it an indispensable part for maintaining the integrity of power door lock systems in these iconic automobiles.

**Pros and Cons of buying a United Pacific C555902 55-59 Chevy/GMC Door Latch Relay (Part Number: C555902)**

1. **Direct Fitment** This relay is specifically designed for 1955 1959 Chevrolet and GMC vehicles, ensuring compatibility without modification. It replaces the original door latch relay in these models, which are known for electrical issues over time.

2. **Reliability** United Pacific is a reputable aftermarket parts manufacturer with a history of producing durable electrical components. This relay is likely to function as intended, reducing the risk of intermittent door latch failures or complete electrical malfunctions.

3. **Easy Installation** Relays are straightforward to replace. No wiring changes are typically required beyond disconnecting the old relay and securing the new one in its socket. This makes it a DIY-friendly repair.

4. **Prevents Common Issues** Many 1955 1959 Chevy/GMC owners experience problems with door latches, power windows, or horn circuits due to failing relays. Replacing this component can restore proper functionality to these systems.

5. **Cost-Effective** Relays are inexpensive compared to the labor cost of having a mechanic diagnose and replace a faulty relay. This part is a budget-friendly solution for a common electrical problem.

6. **Compatibility with Aftermarket Upgrades** If you ve installed aftermarket accessories (e.g., power windows, remote starters, or alarm systems) that rely on the door latch relay circuit, this replacement ensures those systems continue to work correctly.

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1. **Potential Counterfeit Concerns** While United Pacific is a legitimate brand, some sellers may offer counterfeit or low-quality replicas. Always purchase from trusted retailers (e.g., RockAuto, Summit Racing, or authorized dealers) to avoid receiving a defective or mismatched part.

2. **Wiring Corrosion or Damage** If the relay socket or surrounding wiring is corroded or damaged, replacing just the relay may not solve the issue. You may need to clean terminals or replace wiring harnesses, adding to the repair effort.

3. **Limited Lifespan** Like all electrical components, relays can wear out over time, especially if the vehicle is frequently used or exposed to harsh conditions. This replacement may need to be repeated in the future.

4. **Misdiagnosis Risk** If the actual problem lies elsewhere (e.g., a faulty door latch motor, blown fuse, or ground issue), replacing the relay alone may not fix the problem. A thorough diagnosis is essential before purchasing.

5. **Physical Accessibility** In some vehicles, the relay may be located in a tight or hard-to-reach area (e.g., under the dashboard or behind the glove box). This could make installation slightly more challenging, though it rarely requires professional help.

6. **No Warranty on Some Retailers** While United Pacific likely offers a warranty, some online marketplaces (e.g., eBay or Amazon) may not provide return or warranty policies. Always check the seller s return policy before buying.

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The United Pacific C555902 relay is a practical and cost-effective solution for restoring proper door latch functionality to 1955 1959 Chevy and GMC vehicles. Its direct fitment, ease of installation, and reliability make it a strong choice for DIYers and mechanics alike. However, it s crucial to ensure you re purchasing an authentic part from a reputable source and to verify that the relay is indeed the root cause of the issue before buying.

If you re confident the relay is faulty and the part is genuine, this replacement is highly recommended. For added peace of mind, consider testing the relay with a multimeter or consulting a mechanic to confirm the problem before proceeding.

- Your 1955 1959 Chevy/GMC has intermittent door latch issues, horn failures, or power window malfunctions.

- You ve ruled out other potential causes (fuses, wiring, ground connections).

- You re purchasing from a trusted retailer with a clear return policy.

- You re comfortable with basic electrical repairs or have access to a mechanic for guidance.

- You suspect the issue lies elsewhere (e.g., door latch motor, wiring harness).

- The seller cannot provide proof of authenticity or a warranty.

- You re unsure about the relay s compatibility with your specific vehicle model or year.

Details:

Headquarters. Part # C555902 Condition New Brand United Pacific Sold Each Details Inside Door Latch Relay For 1955-59 Chevy GMC Truck.Inside door latch relay for and truck.

part #: c555902 prices

• $32.95-$34.99

specifications carlockiio:

• for makes: Chevy, Gmc
• brand: United Pacific
• mpn: C555902
• type: Door Latches Components
• california prop 65 warning: True
• upc: 072017378458

general carlockiio:

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

returns carlockiio:

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

payments carlockiio:

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

shipping carlockiio:

• type: Fixed
• service: Economy, Expedited
• class: Economy, Expedited
• transit: 5-5 Days
• cost: $13.99

offer carlockiio:

• started: March 28, 2026
• availability: In Stock
• sold: 0
• quantity: 7
• options: Ship-to-home

seller carlockiio:

• # reviews: 356804
• rating: 99.8%
• city: Lincoln, NE

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