1. USED Transmission & Drivetrain Deals
  2. sku: 13894055004477632
  3. GM 189638

GM 189638 Roller Bearing Vac General

fits make: Chevy, Gmc. year: 1946-53–1956-59.

189638 General Motors New Gm Roller Bearing 1946-53 Chevy 2 Spd With Vac Shift 1956-59 Gmc

( Brand: Gm ), ( Manufacturer Part Number: 189638 ), ( Part Type: Roller Bearing Motor ), ( Unit Type: Unit ), ( Manufacturer Warranty: 3 Months ), ( Oe/oem Part Number: New Nos Gm 189638 Roller Bearing ), ( Vintage Part: Yes ), ( Universal Fitment: No )

Review GM General Motors New Roller Bearing Chevy Spd Vac Shift Gmc fits 1946-53–1956-59

189638 GM Roller Bearing - Compatible with 1946-53 Chevy SPD Vac and 1956-59 GMC

Description:

The 189638 GM Roller Bearing is an essential automotive component designed specifically for use in the SPD Vac (Power Steering Vacuum) systems of certain 1946-53 Chevrolet models and the 1956-59 GMC trucks. This roller bearing is engineered to meet the exacting standards of General Motors, ensuring reliable and efficient operation of the power steering system.

This roller bearing features an impressive size of approximately 1.87 inches in length and 1.34 inches in width, with a thickness of around 0.32 inches. Its design includes a series of rollers that allow for smooth, low-friction rotation, which is crucial for the proper functioning of the power steering system. The rollers are housed within a robust steel casing, providing superior strength and durability.

The 189638 GM Roller Bearing is manufactured using high-quality materials and advanced manufacturing techniques. It undergoes rigorous testing to ensure it meets or exceeds OEM specifications for dimensional accuracy, surface finish, and load capacity. This commitment to quality helps ensure a long service life and reliable performance.

Installing the 189638 GM Roller Bearing is a straightforward process for experienced mechanics. However, it's essential to follow the appropriate installation procedures and use the correct tools to ensure the bearing is properly seated and aligned. Proper installation helps maintain the optimal performance of the power steering system and minimizes the risk of premature failure.

In conclusion, the 189638 GM Roller Bearing is a vital automotive component for the SPD Vac systems of select 1946-53 Chevrolet models and 1956-59 GMC trucks. Its design emphasizes durability, reliability, and low-friction performance, making it an excellent choice for those seeking to keep their classic vehicles in top condition.

Buying a 189638 GM roller bearing for a 1946-53 Chevy or 1956-59 GMC transmission speed vacuum pump can be a crucial decision for vehicle owners looking to maintain or upgrade their classic cars. Here are some pros and cons to consider before making a purchase:

Pros:

1. Improved Performance: A new roller bearing can help improve the performance of your transmission speed vacuum pump by reducing friction and wear, leading to smoother operation and potentially increased power output.

2. Reliability: A new roller bearing can help prevent leaks and reduce the risk of transmission failure, which is especially important for classic cars that may not be driven as frequently as modern vehicles.

3. Longer Lifespan: A new roller bearing can help extend the lifespan of your transmission speed vacuum pump, saving you money in the long run by reducing the need for frequent repairs or replacements.

Cons:

1. Cost: Replacing a roller bearing can be an expensive repair, especially for classic cars where replacement parts may be harder to find and more expensive than for modern vehicles.

2. Labor Costs: Installing a new roller bearing can also require specialized labor, which can add to the overall cost of the repair.

3. Availability: Depending on the specific make and model of your classic car, finding a new roller bearing may be a challenge, as they may no longer be in production or may only be available from specialized suppliers.

In conclusion, while a new roller bearing for your classic car's transmission speed vacuum pump can offer significant benefits in terms of improved performance, reliability, and longevity, the cost and availability of this replacement part can make it a difficult decision for some vehicle owners. Ultimately, if your transmission speed vacuum pump is experiencing issues and a new roller bearing is the recommended repair, it may be worth the investment to ensure the continued reliability and longevity of your classic car.

Recommendation: Before making a purchase, be sure to do your research and compare prices from various suppliers to ensure that you are getting the best deal. Additionally, consider checking with local classic car clubs or specialized repair shops to see if they have any recommendations or can provide any discounts or special deals. Finally, be sure to carefully review the installation instructions and consider seeking the assistance of a professional mechanic to ensure that the repair is done correctly and efficiently.

Details:

We combine shipping. This means there could be some discoloration, markings, scratches, or other defects. New NOS GM 189638 Roller Bearing. Any questions.

Buyer pays return shipping unless we sent a defective item or it was damaged during. 1957 1959 GMC Truck , with F341 double reduction 2-speed rear axle bevel pinion shaft. Are you in charge of an estate that want to sell. Fits the following: 1946 1953 Chevrolet Truck with 2-speed vacuum shift rear axle.

Please look closely at the pictures for condition before buying. Like what you see. Front Wheel Bearing Inner Cone with Rollers 6.314, 1956 Chevrolet Truck All 7000 lb. We buy collections and portions of.

What you see is what get.

part #: 189638 prices

  • $24.50-$34.99

specifications othellodrivetrain:

  • for makes: Chevy, Gmc
  • for years: 1946-53-1956-59
  • brand: Gm
  • mpn: 189638
  • part type: Roller Bearing Motor
  • unit type: Unit
  • manufacturer warranty: 3 Months
  • oe/oem part number: New Nos Gm 189638 Roller Bearing
  • vintage part: Yes
  • universal fitment: No

seller othellodrivetrain:

  • # reviews: 5301
  • city: Andover, Minnesota
  • rating: 99.7%

general othellodrivetrain:

  • condition: New
  • Car Truck Parts Accessories > Transmission Drivetrain > Other Transmission Drivetrain

returns othellodrivetrain:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Seller

offer othellodrivetrain:

  • availability: In Stock
  • quantity: 1
  • options: Ship-to-home
  • best offers: True
  • started: April 23, 2026
  • sold: 0

payments othellodrivetrain:

  • wallet: Apple-pay
  • other
  • credit card: Diners-club

shipping othellodrivetrain:

  • cost: $7.82
  • type: Fixed
  • carrier: USPS
  • transit: 2-6 Days
  • class: Standard
  • service: USPS Ground Advantage
for makes: chevy, gmc, for years: 1946-53-1956-59, part type: roller bearing motor, unit type: unit, manufacturer warranty: 3 months, oe/oem part number: new nos gm 189638 roller bearing, vintage part: yes, universal fitment: no,
category: auto parts > car truck parts accessories > transmission drivetrain, sku: 13894055004477632,

Gm 189638 Is Similar To:

othellodrivetrain logo
3 offers $24.50–$34.99 USD
  • Offer #1: $34.99 price + $7.82 shipping estimate = $42.81* total. 1956 1957 Chevrolet Truck Series 7, 8, 9, 10 with 7000 lb. New NOS GM Roller Bearing.+$7.82 shipping
  • Offer #2: $24.50 price + $7.85 shipping estimate = $32.35* total. Please look this part over before purchasing NOS GM Cone With Roller Bearing 1946-53 Chevrolet 2 Speed With Vac Shift.+$7.85 shipping
  • Offer #3: $25.00 price + $12.00 shipping estimate = $37.00* total. 1946-53 Chevrolet 2 Speed With Vacuum Shift Pinion Cone Roller Bearing NOS GM part # and GR.+$12.00 shipping

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