Upgrade your RAM truck’s rear doors with confidence and performance when you choose the OCESTORE 56051931AA Rear Door Wiring Harness. Engineered as an exact-fit, high-quality replacement for the original 56051694AA, 56051931AA/AB, and 645-506 OEM harnesses, this direct-bolt-in unit delivers reliable electrical connections and a factory-grade finish without the premium dealer markup.

Why You’ll Love the OCESTORE Rear Door Wiring Harness

• Perfect Fit for RAM 1500/2500/3500/4500/5500 — Designed specifically for 2004–2008 RAM 1500, 2004–2009 RAM 2500, 2004–2010 RAM 3500, and 2008–2010 RAM 4500 & 5500 models, the harness plugs right in where your old one did.
• Pure Copper Conductors — Unlike cheap imitation wires, our harness features 100% oxygen-free copper for superior conductivity, low-resistance power delivery, and long-term durability.
• Fully Sealed & Weatherproof — Every connector and splice is protected by a factory-style boot and polymer seal, keeping out moisture, dirt, and road salt. You’ll avoid brittle cracks and corrosion where you need the connection most.
• OEM-Quality Design — Molded grommets, strain reliefs, and mounting tabs match the factory harness exactly, making installation as simple as swap-out-and-go. No modifications, no splicing: remove the old harness, plug in ours, and reattach the door panel.
• Cost-Effective Replacement — Why pay dealer prices when OCESTORE delivers the same build and performance at a fraction of the cost? Get the reliability you expect without breaking the bank.
• 12-Month Coverage — Every harness ships brand-new and backed by a full one-year warranty. If you ever have a problem, our U.S.-based support team will get you taken care of fast.

Features & Specifications

• Part Numbers: 56051694AA, 56051931AA, 56051931AB & 645-506
• Application: Rear door wiring harness for left or right side
• Compatibility: RAM 1500 (2004–2008), RAM 2500 (2004–2009), RAM 3500 (2004–2010), RAM 4500/5500 (2008–2010)
• Wire Material: 100% pure copper conductors
• Jacket: Weather-resistant PVC with integrated boots
• Connectors: OEM-style plug-and-play sockets pre-installed
• Mounting: Factory-exact grommets, tabs and clips
• Dimensions: Matches factory harness length and routing
• Weight Capacity: Handles up to 15 amps per circuit
• Warranty: 12 months from date of purchase

What’s in the Box

• 1× Rear door wiring harness (left or right side)
• Protective shipping wrap and cable ties
• Installation instructions and part verification guide

Quick Installation Steps

1. Disconnect the negative battery terminal to eliminate any short-circuit risk.
2. Remove the rear door panel: pull back clips, unscrew fasteners, and lift the panel off the door frame.
3. Unplug the old harness from both the door module and the vehicle body connector.
4. Remove all cable ties and fasteners holding the harness in place; gently pull the old harness through the rubber grommet.
5. Route the new OCESTORE harness along the same path, secure it with factory clips, and press the grommet back into the door channel.
6. Reconnect the electrical connectors until you hear the “click” that confirms a secure fit.
7. Reinstall the door panel, reconnect the battery, and test windows, locks, speakers, and courtesy lights to ensure proper operation.

Frequently Asked Questions

Q: How can I be sure this harness fits my Ram?

A: Before ordering, compare the connector shapes and pin counts on your existing harness to the photos and diagrams on this page. If they match, this is the correct replacement for your rear door.

Q: Can I install it myself?

A: Yes! These harnesses are designed for direct, bolt-in replacement. If you can remove the door panel and unplug the old harness, you can install this one in under 30 minutes.

Q: Does it include clips & ties?

A: We bundle new cable ties and grommets in every kit so you have everything you need for a factory-clean installation.

Drive with Confidence

Your truck earned its legendary status by delivering day-in, day-out reliability. Don’t let a brittle, weather-ridden wiring harness undermine that reputation. The OCESTORE Rear Door Wiring Harness protects critical door functions—power windows, speakers, heated mirrors and courtesy lights—so you stay connected, comfortable and secure behind the wheel.

Order your OCESTORE 56051931AA Rear Door Wiring Harness today and experience the perfect blend of OEM accuracy, aftermarket value, and rock-solid reliability.