Make sure this part fits

GM 404294
Pinion Seal

1984-1990 GM

Customer Questions & Expert Answers (1)
GM 404294 Pinion Seal
  • Part Description
    Seal, Propeller Shaft Pinion Flange Oil; Differential Seal
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Vehicle Fitment

    Year Make Model Trim Engine
    1989, 1984-1987 Buick ElectraEstate Wagon, Limited, Park Avenue6 Cyl 4.1 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
    1984-1990 Buick LeSabreCollector's Edition, Custom, Estate Wagon, Limited6 Cyl 3.8 L GAS, 6 Cyl 4.1 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
    1984-1987 Buick RegalBase, GNX, Grand National, Limited, T-Type6 Cyl 3.8 L GAS, 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L DIESEL, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
    1984 Cadillac DeVilleBase, Cabriolet, d'Elegance8 Cyl 4.1 L GAS, 8 Cyl 5.7 L DIESEL
    1990, 1984 Cadillac Fleetwood60 Special, Brougham, Brougham d'Elegance, Formal8 Cyl 4.1 L GAS, 8 Cyl 4.5 L GAS, 8 Cyl 5.7 L DIESEL, 8 Cyl 6.0 L GAS
    1984-1990 Chevrolet CapriceBase, Classic, Classic Brougham, Classic LS Brougham6 Cyl 3.8 L GAS, 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL, 8 Cyl 5.7 L GAS
    1984-1985 Chevrolet ImpalaBase6 Cyl 3.8 L GAS, 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL, 8 Cyl 5.7 L GAS
    1984-1988 Chevrolet Monte CarloBase, LS, SS6 Cyl 3.8 L GAS, 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
    1987, 1984 Oldsmobile 98Regency, Regency Brougham, Regency Grande, Regency Touring6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
    1984-1990 Oldsmobile Custom CruiserBase8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
    View More
    Warning: California's Proposition 65
  • Customer Questions & Expert Answers

    Q:
    Hey, is 404294 a good match for my vehicle? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 404294 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM Pinion Seal 404294 Designed for Proper Fit and Performance

Original OEM GM parts deliver superior quality and meet all performance standards needed for optimal automotive operation. The authentic part identified by 404294 Pinion Seal is available in the market under the name GM Differential Seal. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 404294 Pinion Seal fits certain Chevrolet Impala, Caprice, Monte Carlo models, as well as Cadillac DeVille, Fleetwood. Additionally, it is compatible with Buick Regal, LeSabre, Electra and Pontiac Grand Prix, Bonneville, Parisienne models.
The original GM component designated by manufacturer part number 404294 maintains top performance when functioning as the Seal, Propeller Shaft Pinion Flange Oil; Differential Seal unit. The component 404294 is constructed from durable material. The Direct Replacement component is ready in New condition to ensure full compatibility with your vehicle system. This component receives the designation of Seal, Differential Drive Pinion Shaft Bearing. The part 404294 has available replacement options. GM manufacturer provides a warranty that ensures reliable operation of this product. The Shipping Policy and Return Policy pages outline complete details regarding shipping procedures and return processes.
The GM part 404294 Pinion Seal functions as a key component for preserving the drivetrain performance and structural stability of the vehicle. The part requires regular maintenance because its proper torque settings and alignment are necessary for smooth operation. While servicing the driveshaft you should disconnect the driveshaft then measure the torque needed to rotate the pinion before saving this data for future comparisons. The correct installation method consists of using scribed marks that match between the pinion stem and nut and flange to maintain their original position. A proper tool for keeping the pinion flange stationary becomes essential when removing the self-locking nut to avoid damaging the components. When installing the companion flange the new seal needs extreme pressure lithium-based grease before it should be installed properly by tightening the thrust-washer and nut until they show the same thread exposure as before. Additional modification should be applied to the GM part 404294 Pinion Seal to compensate for oil seal drag which will improve both the longevity and functional performance of the component. ChevyPartsGiant.com gives customers access to a complete assortment of authentic GM parts which includes the 404294 with a manufacturer warranty that provides genuine factory-standard parts that can be trusted.