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1954 - 1958 Buick Century Automatic Transmission Extension Housing Seal (National Bearing) NEW

$ 17 .52
120-DayReturns
LifetimeWarranty
100%Money-Back

Product Notes Read before buying

with GMC Flight-Pitch Transmission

Brand: National Bearing
Condition: New
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Not sure? Ask WrenchyYour Parts Assistant.

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Specifications & Info



Vehicle Fitment Guide

This part fits the following vehicles:

Buick 1 model (tapclick to expand)(tapclick to hide)
Century 1954-1958 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Base Convertible 1957 - 1958 V8 6.0L RWD Automatic & Manual & U/K
Base Convertible 1954 - 1956 V8 5.3L RWD Automatic & Manual & U/K
Base Coupe 1957 - 1958 V8 6.0L RWD Automatic & Manual & U/K
Base Coupe 1954 - 1956 V8 5.3L RWD Automatic & Manual & U/K
Base Sedan 1957 - 1958 V8 6.0L RWD Automatic & Manual & U/K
Base Sedan 1954 - 1956 V8 5.3L RWD Automatic & Manual & U/K
Base Wagon 1957 - 1958 V8 6.0L RWD Automatic & Manual & U/K
Base Wagon 1954 - 1956 V8 5.3L RWD Automatic & Manual & U/K
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies, in plain English.

Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Lifetime Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.

Returns (120 Days)

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.

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Fits Years: 1954 1955 1956 1957 1958

Fits Models: Century

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120
Day Return Window

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Most retailers stop at 30 days. We give you a full four months to install, test, and return for a 100% refund — return shipping on us.

NEW
Direct-Fit Replacement

Engineered To OEM Specs

Brand-new aftermarket parts from trusted suppliers — built to original-equipment specifications so they fit and function like the factory unit, at a fraction of the price.

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