MOPAR 04746873 Lock Cylinder Tumbler Spring

( Manufacturer Part Number: 04746873 ), ( Part Type: Spring Lock Cylinder ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Sold In Quantity: 100 ), ( Parts Included: Only Part Reference 11 On The Diagram Is Included )

Review MOPAR Genuine Lock Cylinder Tumbler Spring

The **Mopar 04746873 Lock Cylinder Tumbler Spring** is a precision-engineered component designed to ensure smooth, reliable operation within Ford and Lincoln vehicles equipped with the iconic **Ford 9-inch and 10-inch rear axle assemblies**, particularly those featuring the **9-inch differential** with the **9-inch case** or **10-inch case** configurations. This high-performance spring is a critical part of the **lock cylinder mechanism**, which controls the engagement and disengagement of the **positive lock** feature on these legendary axles. Crafted from durable, heat-treated metal, the tumbler spring is engineered to withstand the rigorous demands of off-road driving, heavy loads, and extreme conditions, where the axle s locking differential is frequently engaged to maximize traction and torque distribution. Its design allows for consistent, repeatable performance, ensuring that the lock cylinder operates with minimal resistance and without premature wear, even after prolonged use. Whether installed in classic muscle cars, rugged trucks, or high-performance off-road vehicles, this spring plays a vital role in maintaining the integrity of the locking mechanism, preventing binding, and extending the lifespan of the entire axle assembly. For enthusiasts and mechanics seeking a direct-fit replacement that upholds the same exacting standards as OEM components, the **Mopar 04746873** is an essential part that guarantees seamless functionality and peace of mind during demanding driving scenarios.

The **Mopar 04746873 lock cylinder tumbler spring** is a critical component for the ignition system in certain Chrysler, Dodge, Jeep, and Ram vehicles (commonly found in models like the 2000 2004 Jeep Grand Cherokee, 2005 2006 Dodge Ram 1500, and similar applications). Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

---

### **Pros of buying a Mopar 04746873 Tumbler Spring**

1. **OEM Quality and Reliability**

Mopar is Chrysler s official aftermarket brand, designed to meet or exceed original equipment manufacturer (OEM) specifications. This means the tumbler spring is built to the same standards as the factory part, ensuring proper fit, function, and durability. OEM parts are less likely to fail prematurely compared to generic or no-name alternatives.

2. **Compatibility and Fit**

The part is specifically engineered for the 04746873 lock cylinder, which is used in several Chrysler/Dodge/Jeep models. This reduces the risk of sizing issues or misalignment that can occur with non-matching parts. The spring s design aligns with the cylinder s internal mechanism, ensuring smooth operation of the ignition key.

3. **Long-Term Performance**

High-quality springs like this one are less prone to wear, corrosion, or deformation over time. This can extend the lifespan of the entire lock cylinder assembly, delaying the need for more extensive repairs (e.g., replacing the entire cylinder or tumbler stack). Properly functioning springs also reduce the risk of the key sticking or failing to turn.

4. **Ease of Installation**

Replacing a single tumbler spring is a straightforward DIY task for those with basic mechanical skills. The process typically involves removing the ignition cylinder, disassembling the lock, replacing the spring, and reassembling everything. Mopar provides clear instructions, and the part is often sold with necessary tools (e.g., spring pliers) or compatible with standard tools. This can save labor costs if doing it yourself.

5. **Prevents Common Ignition Issues**

- Keys sticking or not turning.

- The ignition not engaging (e.g., "run" or "start" position failing).

- The key requiring excessive force to turn.

Replacing the spring can resolve these issues without needing a full lock cylinder replacement, which is often more expensive.

6. **Cost-Effective Upgrade**

While the part itself is not extremely cheap (typically ranging from $10 to $25 depending on the retailer), it is significantly less expensive than replacing an entire lock cylinder (which can cost $50 $150 or more). For this reason, it is a cost-effective solution for minor ignition malfunctions.

7. **Warranty Coverage**

Mopar parts often come with a warranty (e.g., 1-year limited warranty), providing peace of mind in case the spring fails due to a defect. This is particularly useful if the part is installed by a professional or if the vehicle is still under warranty for other components.

8. **Availability and Support**

Mopar parts are widely available through automotive retailers (e.g., AutoZone, O Reilly Auto Parts, RockAuto), dealerships, and online marketplaces. Additionally, Mopar offers customer support and technical resources to help with installation or troubleshooting.

---

### **Cons of buying a Mopar 04746873 Tumbler Spring**

1. **Limited Use Case**

This specific part is only applicable to vehicles with the 04746873 lock cylinder. If your vehicle uses a different cylinder (e.g., 04746872, 04746874, or a non-Mopar brand), this spring will not be compatible. Always verify the exact part number of your lock cylinder before purchasing.

2. **Potential for Counterfeit Parts**

While Mopar is a reputable brand, counterfeit or low-quality knockoffs can sometimes slip into the market, especially when purchasing from third-party sellers (e.g., eBay, Amazon, or untrusted online retailers). These fakes may fail prematurely or not fit correctly. To avoid this, buy from authorized dealers or well-known automotive parts stores.

3. **DIY Installation Challenges**

- Disassembling the lock cylinder without damaging it.

- Properly aligning the tumbler springs and pins.

- Reassembling the cylinder securely to prevent misalignment.

If mistakes are made, it could lead to further damage or the need for professional repair, negating the cost savings of a DIY approach.

4. **Underlying Issues May Persist**

- Worn or damaged tumblers.

- Corrosion inside the cylinder.

- Misaligned keyways.

If these issues exist, the spring replacement may provide temporary relief but could fail again quickly. In such cases, a full lock cylinder replacement might be necessary.

5. **Key Wear and Tear**

If the ignition key itself is worn or damaged (e.g., bent, rounded, or corroded), replacing the spring will not resolve the issue. The key may need to be replaced or reshaped to work properly with the new spring. This adds an additional cost if overlooked.

6. **Limited Longevity in Harsh Conditions**

While the spring is durable, extreme conditions (e.g., high humidity, salt exposure, or frequent key dropping) can accelerate wear. In such environments, the spring may need replacement more frequently than in normal conditions.

7. **Potential for Overpaying**

Compared to generic or aftermarket tumbler springs (which may be slightly cheaper), the Mopar part is priced at a premium. For budget-conscious buyers, generic alternatives (e.g., from brands like ACDelco or Dorman) might offer similar performance at a lower cost, though quality may vary.

8. **Professional Installation Costs**

If the owner chooses to have the work done by a mechanic, labor costs (typically $50 $100) may offset some of the savings of the DIY approach. This is a consideration for those who lack the time or confidence to perform the repair themselves.

---

### **Conclusion**

The **Mopar 04746873 tumbler spring** is a high-quality, reliable replacement part for vehicles with the specified lock cylinder. Its OEM-level quality, compatibility, and ease of installation make it an excellent choice for addressing minor ignition issues. For most drivers, this part offers a balance of cost-effectiveness and longevity, particularly if the problem is isolated to the tumbler spring.

However, the part s usefulness is limited to specific applications, and potential pitfalls such as counterfeit parts, DIY installation challenges, or underlying lock cylinder issues must be considered. If the vehicle s lock cylinder is old or damaged, a full replacement may be more prudent in the long run.

---

### **Recommendation**

1. **Verify Compatibility**: Confirm that your vehicle s lock cylinder uses the **04746873** part number. Check your vehicle s service manual or consult a mechanic if unsure. If the part number differs, ensure you purchase the correct tumbler spring for your cylinder.

2. **Purchase from Authorized Sources**: Buy the part from a reputable dealer (e.g., AutoZone, O Reilly, RockAuto, or a local Mopar dealer) to avoid counterfeit products. Avoid unknown sellers unless they have strong reviews and return policies.

- If you are comfortable with basic mechanical work, replacing the spring yourself is a cost-effective solution. Follow the installation instructions carefully, and take your time to avoid damaging the cylinder.

- If you are unsure or the lock cylinder is old, consider having a professional install the part to ensure proper alignment and function.

4. **Inspect the Lock Cylinder**: While replacing the spring, take the opportunity to inspect the rest of the lock cylinder for signs of wear, corrosion, or damage. If the cylinder appears worn or the key is damaged, address those issues simultaneously to prevent future problems.

5. **Test the Key**: After installation, test the key thoroughly in all positions (off, accessory, run, start) to ensure smooth operation. If the key still sticks or the ignition fails, the issue may lie elsewhere (e.g., the ignition switch or wiring), and further diagnosis is needed.

6. **Budget for Potential Upgrades**: If your vehicle s ignition system is frequently problematic, consider upgrading to a higher-quality lock cylinder or ignition switch (e.g., a remanufactured or aftermarket part) to improve long-term reliability.

**Final Verdict**: For most drivers dealing with a specific tumbler spring failure in a compatible vehicle, the **Mopar 04746873 tumbler spring** is a strong, reliable choice. Its OEM quality and ease of installation make it a practical solution for resolving minor ignition issues without the need for a full lock replacement. However, always ensure compatibility and address any underlying problems to maximize the part s effectiveness.

Details:

Electrical parts are not returnable. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Parts must be resalable and in the original packaging. Glove Box Fuel Cap Lock with Ignition Key.

Glove Box Cylinder. Also for Locking Fuel Filler Cap.

part #: 04746873 prices

• $10.00-$455.91

specifications carlockiio:

• for makes: Mopar
• mpn: 04746873
• part type: Spring Lock Cylinder
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• sold in quantity: 100
• parts included: Only Part Reference 11 On The Diagram Is Included

seller carlockiio:

• city: Goldsboro, North Carolina
• rating: 100.0%
• # reviews: 4

general carlockiio:

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

returns carlockiio:

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

payments carlockiio:

• wallet: Paypal
• other
• credit card: Visa

shipping carlockiio:

• service: Standard
• transit: 4-10 Days
• type: Fixed
• class: Standard
• cost: $1888.00

offer carlockiio:

• started: March 1, 2026
• availability: In Stock
• quantity: 3
• options: Ship-to-home
• sold: 0

Mopar 04746873 Is Similar To:

• 04574155 Mopar Oem Left Front Key Cylinder To Latch Link Intrepid (40.3% similar) One oem mopar left front key cylinder to latch link part no...(July 10th, 2018)
• 04575892aa Mopar Nos Oem Genuine Right Rear Power Door Latch Lock (30.6% similar) ...(June 2nd, 2018)
• Lock Motor 04589417ah Oem Door Mopar Actuator (17.3% similar) 08 14 mopar oem 04589417AH door lock actuator motor door lock motor...(January 22nd, 2015)
• 04589466ah Mopar Jeep Liberty Dodge Nitro Door Lock Latch Assembly Ships (32.1% similar) Absolutely free shipping...(November 5th, 2018)
• Rear Door Chrysler Lock Part 04589697 Mopar Left Driver Actuator Latch (27.9% similar) Removed from a 13 Chrysler 200 2013 DOOR lock actuator left rear black oem used part 04589697GOOD used condition free us. You are invited encouraged to ask questions request more detailed photos prior to buying or making purchase. Standard shipping. Return shipping is at purchaser's expense. For ...(November 20th, 2014)
• 04589913ae Mopar Chrysler Front Left Lh Door Latch Lock Actuator Used (28.1% similar) This front LHS door latch lock was removed from a 2015 Chrysler 200 its in good shape and worked great before I removed it...(April 15th, 2018)
• Actuator Door 04589924af Lock Oem Mopar Motor (30.8% similar) ...(December 20th, 2014)
• 04717961ab Mopar Door Lock Actuator Motor Left (30.5% similar) ...(September 28th, 2018)
• Mopar 04778123 Door Lock Cylinder (56.5% similar) I have for sale a brand new mopar door lock cylinder...(May 15th, 2014)
• 04864651 Mopar Nos Door Lock Cylinder Free Shipping (52.7% similar) Dead jeep is your first and only stop for rebuilding or repairing jeep. We compassionately harvest parts from donor jeeps at the end of their life. Buttercup is a wholesaler of oem used parts...(August 19th, 2018)
• 04894069ab Mopar Door Lock Actuator (29.8% similar) Brand: mopar part number: 04894069AB item condition: new: door lock actuator motor manufacturer brand quantity needed: 1 specifics...(January 7th, 2018)