Product Description
Genuine United Delco 3901141 Reverse Idler Gear with Bushing (NOS)
This NOS (New Old Stock) United Delco 3901141 Reverse Idler Gear with Bushing is a genuine, Made in USA component designed for 1968-1991 Chevrolet and GMC trucks equipped with the SM465 4-speed manual transmission. This 23-tooth gear is a critical component for restoring proper reverse function in your classic truck's drivetrain.
Key Features:
- Brand: United Delco
- Part Number: 3901141
- OEM Number: 3901141
- Position: Reverse Idler
- Engine Fitment: For SM465 4-Speed Manual Transmission
- Origin: Made in USA
- Condition: NOS (New Old Stock)
Fitment:
| Make | Model | Year | Engine | Notes |
| Chevrolet | C10 / K10 / C20 / K20 / C30 / K30 / C1500 / K1500 / C2500 / K2500 / C3500 / K3500 / Pickup / Truck / Suburban / Blazer | 1968-1991 | SM465 4-Speed Manual | 23-Tooth Gear |
| GMC | C10 / K10 / C20 / K20 / C30 / K30 / C1500 / K1500 / C2500 / K2500 / C3500 / K3500 / Pickup / Truck / Suburban / Jimmy | 1968-1991 | SM465 4-Speed Manual | 23-Tooth Gear |
Fits Years:
1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991
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 our fitment data using vintage manufacturer catalogs to provide you with the most accurate information possible. However, because we are human and these decades-old resources can occasionally contain errors, we cannot guarantee 100% accuracy. We strongly encourage you to perform your own due diligence and verify this part number for your specific application before purchasing. Please note that this part may also fit other vehicles or years not explicitly listed in our research.
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.
