Genuine Moog K6121F Front Upper Ball Joint (NORS)
Restore the legendary handling and front-end stability of your classic GM truck with this premium Moog K6121F Front Upper Ball Joint. This is a New Old Replacement Stock (NORS) component, manufactured in the USA during an era of uncompromising metallurgy. Specifically engineered for 1963-1970 Chevrolet and GMC 1/2-ton and 3/4-ton pickups and vans, this heavy-duty forged housing design features Moog’s "Problem Solver" technology. It includes a metal-to-metal gusher bearing that allows grease to penetrate all load-bearing surfaces, significantly reducing friction and extending the service life of your vintage suspension compared to modern plastic-seated alternatives.
Key Features:
- Brand: Moog
- Part Number: K6121F
- Interchange: GM 3822180, K-6121F
- Position: Front Upper
- Engine: All Engines
- Origin: USA
- Condition: NORS (New Old Replacement Stock)
Verified Vehicle Fitment:
| Make |
Model |
Year |
Engine |
Notes |
| Chevrolet |
C10 / C20 Pickup |
1963-1970 |
All Engines |
Front Upper; Forged Housing |
| Chevrolet |
P10 / P20 Van |
1963-1970 |
All Engines |
Front Upper; Forged Housing |
| GMC |
1000 / 1500 / 2500 Series |
1963-1970 |
All Engines |
Front Upper; Forged Housing |
| GMC |
P1500 / P2500 / P3500 Van |
1963-1970 |
All Engines |
Front Upper; Forged Housing |
Fits Years:
1963 1964 1965 1966 1967 1968 1969 1970
Note on Stock Photos: Due to our inventory of multiple identical units for this specific part number, we utilize representative stock photos for this listing. You will receive a component that strictly meets all listed specifications and fitment requirements. Please be aware that because these are vintage parts, minor cosmetic variations—such as surface finish, color, or production markings—may exist between different manufacturing runs. These slight aesthetic differences are a result of historical production processes and do not impact the part's integrity, performance, or authenticity.
A Note on Fitment Accuracy: We manually research and cross-reference our fitment data using vintage manufacturer catalogs. While we strive for 100% accuracy, these decades-old resources—and the humans reading them—can occasionally contain errors. Additionally, these parts may fit other vehicles and years not explicitly listed in our data. To ensure a seamless restoration, we kindly ask that you perform your own due diligence and verify that this specific part number is correct for your application prior to purchase.
Unbeatable Prices & Expectations
While many of our vintage parts were manufactured decades ago, they remain unused and high-quality. Some original boxes may show signs of shelf-wear, such as dust, tape, or surface distress from years of storage. Rest assured, the components inside have been inspected to ensure they are complete and ready to help you finish your project without breaking the bank.
