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  2. sku: 11699722352917793
  3. 474036

474036 Nos Counter Shaft Spacer M20/M18

fits model: M20, M18, Corvette, Camaro. year: 1974–1981.

474036 General Motors 1974-1981 Corvette Camaro Nos M20/m18 Bw Counter Shaft Spacer

( Brand: General Motors ), ( Manufacturer Part Number: 474036 ), ( Type: Counter Shaft ), ( Material: Steel ), ( Performance Part: Yes ), ( Manufacturer Warranty: No ), ( California Prop 65 Warning: Warning, Servicing And Maintaining A Passenger Vehicle Or Off-highway Motor Vehicle Can Expose You To Chemicals Including Engine Exhaust, Carbon Monoxide, Phthalates, And Lead, Which Are Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm. To Minimize Exposure, Avoid Breathing Exhaust, Do Not Idle The Engine Except As Necessary, Service Your Vehicle In A Well-ventilated Area And Wear Gloves Or Wash Your Hands Frequently When Servicing Your Vehicle. For More Information Go To Www.p65warnings.ca.gov/passenger-vehicle. ), ( Color: Silver ), ( Placement On Vehicle: Center ), ( Country Of Origin: United States ), ( Item: Tracy Corvette 1688 )

Review GENERAL MOTORS Nos M20/m18 Bw Counter Shaft Spacer fits CORVETTE CAMARO M20 M18 1974–1981

1974-1981 Chevrolet Corvette and Camaro NOS M20/M18 Countershaft Spacer

Description:

This product is a new old stock (NOS) countershaft spacer, specifically designed for use with the M20 or M18 engine in 1974-1981 Chevrolet Corvettes and Camaros. The countershaft spacer is an essential component of the engine's drivetrain, and its role is to maintain the correct distance between the crankshaft and the countershaft in the engine's rear main seal housing.

The countershaft spacer is made from high-quality, heat-treated steel, ensuring that it is durable, strong, and capable of withstanding the rigors of high-performance applications. The surface of the spacer is finished with a smooth, polished surface that ensures a snug fit in the engine, eliminating any potential for excessive play or vibration.

This NOS countershaft spacer is an excellent replacement for worn or damaged original parts, and it is also an ideal upgrade for performance enthusiasts seeking to enhance the power output and reliability of their engines. The NOS status of this part ensures that it is free from the signs of wear and corrosion that can be present in used components, providing peace of mind and the assurance of a perfect fit.

Installation of this countershaft spacer is straightforward, with no special tools required. Simply remove the old spacer from the engine, and replace it with the new one. It is recommended that the engine be properly aligned and balanced before installation to ensure optimal performance and longevity.

This NOS M20/M18 countershaft spacer is a must-have for anyone restoring or building a 1974-1981 Chevrolet Corvette or Camaro, and it is also an excellent choice for those seeking to upgrade the performance of their existing engine. With its exceptional quality, durability, and NOS status, this countershaft spacer is an essential addition to any enthusiast's toolkit.

Buying a 1974-1981 Chevrolet Corvette or Camaro with a NOS (New Old Stock) M20/M18 BW counter shaft spacer can be an intriguing prospect for automotive enthusiasts looking to restore or upgrade their classic muscle cars. Below are some potential pros and cons of making such a purchase.

Pros:

1. Authenticity: A NOS part is original and unaltered, ensuring the preservation of the vehicle's originality and value.

2. Performance: The M20/M18 counter shaft spacer is an essential component in the engine's performance, and a new one can lead to improved power and torque.

3. Rarity: NOS parts are highly sought after in the classic car community, making them valuable and desirable collectibles.

4. Restoration: For those undertaking a restoration project, having a NOS part can save time and effort in the search for an original replacement.

Cons:

1. Cost: NOS parts can be significantly more expensive than used or aftermarket alternatives due to their rarity and desirability.

2. Availability: Finding the exact NOS part you need can be a challenge, as they may only be available from specific sources or collectors.

3. Transportation: Shipping a NOS part, especially an oversized one like a counter shaft spacer, can be costly and require special arrangements.

4. Storage: Properly storing a NOS part to maintain its condition can be a challenge for those without the necessary facilities or expertise.

Conclusion:

Purchasing a NOS M20/M18 BW counter shaft spacer for a 1974-1981 Corvette or Camaro can offer benefits in terms of authenticity, performance, and rarity. However, it also comes with challenges such as cost, availability, transportation, and storage. Ultimately, the decision to buy a NOS part depends on the individual's priorities, budget, and restoration goals.

Recommendation: Before making a purchase, consider the following steps:

1. Research: Determine if a NOS part is necessary for your project, and if it is, ensure that it is the correct part for your specific vehicle.

2. Budget: Establish a budget for the purchase, taking into account the cost of the part, shipping, and any necessary storage or maintenance expenses.

3. Availability: Locate reliable sources for the NOS part, such as specialized dealers, collectors, or online marketplaces.

4. Alternatives: Explore aftermarket and used options to compare prices and determine if they meet your performance and authenticity requirements.

5. Expert advice: Consult with restoration experts or knowledgeable enthusiasts to gather their opinions and advice on the purchase.

Details:

It is also used in 1980 and 1981 with M18 Transmissions. Smaller items are shipped Standard USA Postal Service or USPS Priority Mail. This spacer is used with Borg Warner M20 Super T-10 Transmissions including 1974 1975 1976 1977 1978 1979 1980 and 1981 Corvettes, Camaro, Fire birds many other GM vehicles in that era. It is also for Borg Warner M20 Super T-10 Transmissions, 2nd Design, without Spec Hi Perf in 1979.

Keep Your GM Car All. NOS Chevy Corvette Transmission Counter Shaft Spacer GM 474036 Group Number 4.423 Warner M20 T-10 Transmissions Special Hi Perf 1974 1975 1976 1977 1978 1979 2nd Design M18. Next, select a topic, or choose Other. This comes with the original GM box.

part #: 474036 price

  • $99.00

specifications manutransmission:

  • for models: M20, M18, Corvette, Camaro
  • for years: 1974-1981
  • brand: General Motors
  • mpn: 474036
  • type: Counter Shaft
  • material: Steel
  • performance part: Yes
  • manufacturer warranty: No
  • california prop 65 warning: Warning, Servicing And Maintaining A Passenger Vehicle Or Off-highway Motor Vehicle Can Expose You To Chemicals Including Engine Exhaust, Carbon Monoxide, Phthalates, And Lead, Which Are Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm. To Minimize Exposure, Avoid Breathing Exhaust, Do Not Idle The Engine Except As Necessary, Service Your Vehicle In A Well-ventilated Area And Wear Gloves Or Wash Your Hands Frequently When Servicing Your Vehicle. For More Information Go To Www.p65warnings.ca.gov/passenger-vehicle.
  • color: Silver
  • placement on vehicle: Center
  • country of origin: United States
  • item: Tracy Corvette 1688

seller manutransmission:

  • # reviews: 21905
  • city: Roseville, Michigan
  • rating: 99.4%

offer manutransmission:

  • quantity: 1
  • started: March 15, 2026
  • options: Ship-to-home
  • sold: 0
  • best offers: True
  • availability: In Stock

general manutransmission:

  • condition: New other see details
  • Car Truck Parts Accessories > Transmission Drivetrain > Manual Transmission Parts

shipping manutransmission:

  • type: Fixed
  • class: Expedited
  • service: USPS Priority Mail Small Flat Rate Box
  • transit: 4-10 Days
  • cost: $12.00
  • carrier: USPS

returns manutransmission:

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

payments manutransmission:

  • wallet: Apple-pay
  • credit card: Diners-club
  • other
for models: m20, m18, corvette, camaro, for years: 1974-1981, type: counter shaft, performance part: yes, manufacturer warranty: no, california prop 65 warning: warning, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the state of california to cause cancer and birth defects or other reproductive harm. to minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. for more information go to www.p65warnings.ca.gov/passenger-vehicle., placement on vehicle: center, country of origin: united states, item: tracy corvette 1688,
category: auto parts > car truck parts accessories > transmission drivetrain > manual transmission parts, color: silver, material: steel, sku: 11699722352917793,

General Motors 474036 Is Similar To:

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1 offer $99.00 USD
  • Offer #1: $99.00 price + $12.00 shipping estimate = $111.00* total. NOS Chevy Corvette Transmission Counter Shaft Spacer GM GM Group Number 4.423 Warner M20 T-10 Transmissions Special Hi Perf 1974 1975 1976 1977 1978 1979 M20 T-10 Transmissions 2nd Design 1979 M18. This spacer is used with Borg Warner M20 Super T-10 Transmissions including 1974 1975 1976 1977 1978 1979 1980 and 1981 Corvettes, Camaros, Firebirds and many other GM vehicles in that era.+$12.00 shipping

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