Genuine Moog K377 Idler Arm Bushing (NORS)
Restore the smooth, dependable steering of your classic Tri-Five Chevy with this genuine Moog K377 Idler Arm Bushing. This is an authentic New Old Replacement Stock (NORS) component, manufactured in the USA by Moog, the legendary leader in vintage chassis parts. Designed specifically for 1955, 1956, and 1957 Chevrolet full-size models—including the Bel Air, 150, 210, and Sedan Delivery—this bushing serves as a critical pivot point in your steering linkage. It is engineered to original equipment specifications to eliminate sloppy steering feel and road vibrations. As a vintage part manufactured decades ago, it offers the superior metallurgical integrity and exact fitment required for a high-standard restoration. Please note that this listing is for one individual bushing; ensure you order the correct quantity for your specific steering configuration.
Key Features:
- Brand: Moog
- Part Number: K377
- Interchange: GM 3714574, AC Delco 45G12020
- Position: Front Steering Idler Arm
- Engine Fitment: 235 L6, 265 V8, 283 V8 (All Engines)
- Origin: Made in USA
- Condition: New Old Replacement Stock (NORS)
Verified Vehicle Fitment:
| Make |
Model |
Year |
Engine |
Notes |
| Chevrolet |
Bel Air |
1955-1957 |
All Engines |
Tri-Five Full Size |
| Chevrolet |
One-Fifty Series |
1955-1957 |
All Engines |
Tri-Five Full Size |
| Chevrolet |
Two-Ten Series |
1955-1957 |
All Engines |
Tri-Five Full Size |
| Chevrolet |
Sedan Delivery |
1955-1957 |
All Engines |
Tri-Five Full Size |
Fits Years:
1955 1956 1957
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
We scour the country to find the best deals on NOS and NORS parts so we can pass the savings on to you. Our prices are often significantly lower than major competitors. All items are vintage stock, manufactured decades ago by aftermarket leaders like Moog but never installed. As such, original packaging may show signs of shelf wear (dust, fading, or tape), and unpainted metal components may have minor surface-level oxidation that does not affect performance. For NORS parts, please note these are vintage components manufactured by reputable aftermarket brands decades ago.
