SX-4407 DORMAN OE SOLUTIONS Rear Differential Ring Pinion Dq

Review DORMAN OE SOLUTIONS Rear Differential Ring And Pinion For Oldsmobile Dq for OLDSMOBILE CUTLASS C129 1978–1987

Introducing the Dorman SX-4407 Rear Differential Ring Pinion, specifically designed for Oldsmobile Cutlass DQ models produced between 1978 and 1987. This premium replacement part is manufactured to meet or exceed OE specifications, ensuring reliable performance and a perfect fit.

The ring pinion is a crucial component of the differential system, responsible for transmitting power from the engine to the drive wheels. The Dorman SX-4407 is engineered from high-strength steel, ensuring durability and resistance to wear and tear. Its precision machined teeth provide excellent traction and smooth operation, while its hardened surface finish ensures long-lasting protection against corrosion and damage.

This ring pinion is also designed with easy installation in mind. It comes complete with a new pinion seal, ensuring a leak-free installation and eliminating the need for additional purchases. The included installation instructions provide clear, step-by-step guidance to make the replacement process as straightforward as possible.

The Dorman SX-4407 Rear Differential Ring Pinion is also backed by Dorman's exclusive Techline product support team. This dedicated team of experts is available to answer any questions or concerns you may have, ensuring that your repair or replacement process is as hassle-free as possible. With their expertise and knowledge, you can have confidence that your Oldsmobile Cutlass DQ will be back on the road in no time.

In summary, the Dorman SX-4407 Rear Differential Ring Pinion is a top-quality replacement part engineered to provide reliable performance, durability, and easy installation for Oldsmobile Cutlass DQ models from 1978 to 1987. Trust Dorman to deliver a perfect fit and exceptional value for your vehicle repair needs.

Dorman SX-4407 Rear Differential Ring Pinion for 1978-1987 Oldsmobile Cutlass DQ: A Comprehensive Analysis

The Dorman SX-4407 is a rear differential ring pinion designed to fit 1978-1987 Oldsmobile Cutlass DQ models. This component is an essential part of the vehicle's drivetrain as it transfers engine power to the wheels. In this analysis, we will discuss the potential advantages and disadvantages of purchasing this particular aftermarket part.

1. OEM-equivalent quality: Dorman is known for manufacturing high-quality aftermarket parts, and the SX-4407 ring pinion is no exception. It is engineered to meet or exceed the original equipment specifications.

2. Cost-effective: The Dorman SX-4407 is typically priced lower than the OEM counterpart, making it a more affordable option for many vehicle owners.

3. Easy installation: Dorman guarantees a straightforward installation process for their aftermarket parts, which can save time and labor costs.

1. Potential for slight variations: While the SX-4407 is designed to be an OEM equivalent, there might be slight differences in its dimensions or tolerances compared to the factory part. This could require additional adjustments during installation.

2. Availability: Depending on the location and the specific Oldsmobile Cutlass DQ model, it may be more challenging to find this part locally, necessitating an online purchase or a visit to a specialist auto parts store.

3. Lack of upgrades: If you are looking for a ring pinion with additional features or upgrades, the Dorman SX-4407 may not be the best choice since it is designed to be a direct replacement for the OEM part.

The Dorman SX-4407 rear differential ring pinion is an excellent choice for those seeking a cost-effective, OEM-equivalent replacement for their 1978-1987 Oldsmobile Cutlass DQ. Its high-quality manufacturing and straightforward installation process make it a popular aftermarket option. However, potential buyers should be aware of the slight variations that might arise and the availability concerns. Ultimately, if you prioritize affordability and OEM-equivalent performance, the Dorman SX-4407 is a solid recommendation for your Oldsmobile Cutlass DQ's differential upgrade.

Details:

Dorman rear differential ring pinion for 1978 1987 Oldsmobile Cutlass dq: status: in stock.

specifications differentialsdepo:

• for models: C129, Cutlass
• for makes: Oldsmobile
• for years: 1978–1987
• brand: Dorman Oe Solutions
• mpn: Sx-4407
• placement on vehicle: Driveline Axles Differential
• type: Differential Ring And Pinion
• item length: 15.400
• manufacturer warranty: 1 Year / 2 Years / 3 Years / 5 Years Depending On Part
• ipn: C129 55-14
• compatible model: Cutlass Salon
• compatible year: 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978
• core charge: Free No Core Charge
• position: Rear
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Dorman Differential Ring And Pinion

seller differentialsdepo:

• city: indianapolis, indiana
• rating: 98.9%
• # reviews: 573092

shipping differentialsdepo:

• service: standard, expedited
• type: fixed
• transit: 2-6 days
• class: standard, expedited

general differentialsdepo:

• category: Auto Parts > Transmission Drivetrain > Differentials, Assemblies > Additional

offer differentialsdepo:

• options: ship-to-home
• availability: in stock
• started: september 25, 2025
• sold #: 14
• in stock #: 3
• prices: $69.50–$328.47
• item condition: New

payments differentialsdepo:

• other
• wallet: google-pay
• credit card: visa

returns differentialsdepo:

• paid by: seller
• time: 30 days
• policy: returns accepted