DORMAN 66JW510 Steering Pitman Arm Diplomat

( Brand: Dorman ), ( Manufacturer Part Number: 66JW510 ), ( Manufacturer Warranty: 1 Year ), ( Type: Steering Pitman Arm ), ( Compatibility Notes: Manual Steering; ), ( Cs-sku: 328 )

Review DORMAN Steering Pitman Arm Dodge Diplomat fits 1977–1979

The **Dorman 66JW510 Steering Pitman Arm** is a high-quality, direct-fit replacement designed specifically for the **1977 1979 Dodge Diplomat** and its related Chrysler-based models, ensuring precise compatibility with the vehicle s steering linkage system. Crafted from durable, heat-treated steel, this pitman arm is engineered to withstand the rigors of daily driving, providing reliable performance and extended longevity under demanding conditions. The arm features a robust **spline shaft connection**, allowing for smooth articulation and minimal play, which is critical for maintaining accurate steering response and preventing premature wear on the steering box or rack. Its **precision-machined bushing** and **sealed bearing** assembly ensure smooth operation while resisting corrosion, making it an ideal choice for both original-equipment replacement and performance-oriented upgrades. Whether addressing a worn-out original component, enhancing steering feel, or addressing a binding linkage, the Dorman 66JW510 delivers the strength and precision needed to restore or improve your Diplomat s handling. Built to meet or exceed OEM specifications, this part is a trusted solution for mechanics and DIY enthusiasts alike, offering a seamless fit and the confidence of a brand known for quality and reliability.

### Pros and Cons of Buying a Dorman 66JW510 Steering Pitman Arm for a 1977-1979 Dodge Diplomat

The Dorman 66JW510 steering pitman arm is a widely recognized aftermarket part designed to replace the original steering linkage component in vehicles like the 1977-1979 Dodge Diplomat. Here are the key advantages of purchasing this part:

1. **Compatibility and Fitment** Dorman is a trusted brand known for producing high-quality replacement parts that are engineered to fit specific vehicle models. The 66JW510 is explicitly designed for the 1977-1979 Dodge Diplomat, ensuring proper alignment and functionality with the steering system.

2. **Durability and Quality** Dorman parts are manufactured to meet or exceed OEM standards, often using materials and construction techniques that improve upon the original components. The 66JW510 is built to withstand the stresses of daily driving, reducing the likelihood of premature failure.

3. **Ease of Installation** The part is designed with standard dimensions and mounting points, making it straightforward to install without extensive modifications. Many users report that replacing the pitman arm is a manageable DIY job, especially with basic tools and a bit of mechanical experience.

4. **Cost-Effective Solution** While not the absolute cheapest option, the Dorman 66JW510 offers a balance between affordability and reliability. It is often priced lower than OEM parts while providing comparable or superior performance, making it a cost-effective alternative to buying a used or salvaged part.

5. **Warranty and Support** Dorman parts typically come with a manufacturer s warranty, which can provide peace of mind in case of defects or premature failure. Additionally, Dorman has a reputation for customer service, offering assistance if issues arise during installation or use.

6. **Improved Performance** Some users report that Dorman s pitman arms are slightly more robust than the original, reducing play or binding in the steering linkage. This can lead to smoother steering and better overall handling, especially if the original part was worn or damaged.

7. **Availability** Dorman parts are widely available through automotive retailers, both online and in physical stores. This makes it easier to purchase the part quickly, especially if you need it for an immediate repair.

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1. **Potential Misalignment** If the steering linkage (including the center link, idler arm, and tie rods) is not properly adjusted after replacement, the new pitman arm may not function optimally. Improper alignment can lead to uneven tire wear, a "loose" steering feel, or even premature wear on other steering components. This requires careful attention during installation and possibly a professional alignment afterward.

2. **Quality Variations** While Dorman is generally reliable, there have been occasional reports of subpar batches or counterfeit parts being sold under the Dorman brand. To mitigate this risk, it s advisable to purchase from reputable sellers (such as Amazon, RockAuto, or authorized Dorman dealers) and verify the part s authenticity.

3. **Installation Challenges** Depending on the condition of the surrounding steering components (e.g., rusted bolts, seized joints, or worn bushings), installation may be more difficult than expected. Some users have reported that additional lubrication or cleaning of mounting points is necessary to avoid stripping threads or damaging the new part during installation.

4. **Limited Customization** Unlike some aftermarket parts, the Dorman 66JW510 is a direct replacement and does not offer customization options (e.g., different lengths, materials, or performance enhancements). If you re looking for a part that deviates from the stock specifications, this may not be the best choice.

5. **Compatibility with Modified Vehicles** If your Diplomat has undergone significant modifications (e.g., suspension upgrades, aftermarket steering racks, or altered steering geometry), the Dorman pitman arm may not integrate perfectly. In such cases, a custom or aftermarket part may be necessary.

6. **Price Relative to Alternatives** While Dorman offers good value, there are other brands (such as Moroso, Mopar, or even high-end aftermarket parts) that may be slightly cheaper or offer additional features. It s worth comparing prices and reading reviews to ensure you re getting the best deal.

7. **Potential for Counterfeit Parts** As mentioned earlier, counterfeit Dorman parts can sometimes slip into the market. These may not meet the same quality standards and could fail prematurely. Always buy from trusted sources to avoid this issue.

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The Dorman 66JW510 steering pitman arm is a **reliable, high-quality replacement part** for the 1977-1979 Dodge Diplomat, offering a good balance between durability, ease of installation, and cost-effectiveness. It is an excellent choice for most drivers looking to restore or maintain their vehicle s steering system without the hassle of sourcing a used or salvaged part.

However, the decision to purchase this part should be made with an awareness of potential challenges, such as the need for proper alignment, the risk of counterfeit parts, and the possibility of installation difficulties if other steering components are worn. If you re comfortable with basic mechanical work and take the time to ensure everything is properly adjusted, the Dorman 66JW510 will likely serve you well for many years.

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1. **Buy from a reputable seller** (e.g., RockAuto, Amazon, or a trusted local auto parts store) to avoid counterfeit or low-quality parts.

2. **Inspect and prepare the surrounding steering components** (e.g., clean mounting points, check for rusted bolts, and ensure the center link and idler arm are in good condition) before installation.

3. **Follow the installation instructions carefully**, and consider consulting a mechanic if you re unsure about alignment or torque specifications.

4. **Have the steering geometry checked and adjusted** after installation to ensure smooth, responsive steering and prevent uneven tire wear.

5. **Consider purchasing additional steering linkage parts** (e.g., a new center link or idler arm) if they appear worn, as replacing just the pitman arm may not fully resolve steering issues.

If you re on a tight budget, alternatives like **Mopar (OEM) or Moroso parts** may be worth comparing, but Dorman remains one of the most reliable and widely trusted brands for this application. For most drivers, the **Dorman 66JW510 is the best balance of quality, compatibility, and value**.

Details:

Center Link End Attachment Diameter: 0.5 IN. Finish: Coated. Color: Black. Material: Steel.

Part Type: Steering Pitman Arm. Application Notes: Manual Steering;. End 1 Attachment Type: Spline. Mounting Hardware Included: Yes.

Grease Fitting Included: Yes. Manufacturer: Dorman. Link End Attachment Pitch: M20mm. Reliable Performance: Engineered to meet or exceed OEM specifications for consistent operation and longevity.Durability: Manufactured using high-quality materials withstand the demands of everyday driving.Easy Installation: designed as direct-fit replacements, requiring minimal effort no special modifications.Wide Availability: Covers a broad range vehicle applications, making it easier find right part your car truck.

Warranty Coverage: 1 Year. Dorman parts are engineered to meet or exceed OEM standards, providing reliable performance, durability, and ease of installation. Package Contents: Pitman Arm / Castle Nut Cotter Pin Zeke Fitting. Item Specifics Castle Nut Included: Yes.

part #: 66jw510 prices

• $30.06-$75.00

specifications pitmanidlear:

• for makes: Dodge
• for years: 1977-1979
• brand: Dorman
• mpn: 66jw510
• manufacturer warranty: 1 Year
• type: Steering Pitman Arm
• compatibility notes: Manual Steering;
• cs-sku: 328

payments pitmanidlear:

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

returns pitmanidlear:

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

offer pitmanidlear:

• quantity: 1
• started: February 21, 2026
• sold: 0
• availability: In Stock
• options: Ship-to-home

shipping pitmanidlear:

• cost: $0.00
• class: Standard
• type: Fixed
• transit: 4-10 Days
• service: Standard

general pitmanidlear:

• Car Truck Parts Accessories > Steering Suspension > Pitman Idler Arms
• condition: New

seller pitmanidlear:

• city: Bronx, New York
• rating: 99.3%
• # reviews: 137

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