HARLEY-DAVIDSON 121-38 Flathead Transmission Gearbox Clutch 45 2-BOLT

( Brand: Harley-davidson ), ( Manufacturer Part Number: 121-38 ), ( Part Type: Transmission Clutch ), ( Oe/oem Part Number: 121-38 K2 1942 )

Review HARLEY DAVIDSON Flathead 45 Wl Transmission 2-bolt Gearbox Clutch Assy fits WR

Detailed Product Description - Harley-Davidson 121-38 Flathead 45 WR Transmission 2-Bolt Gearbox Clutch

Experience the timeless heritage and unparalleled performance of the Harley-Davidson 121-38 Flathead 45 WR Transmission 2-Bolt Gearbox Clutch. This iconic component, a testament to the brand's rich history, is meticulously crafted for seamless integration into your classic Harley-Davidson motorcycle.

The Flathead 45 WR Transmission, a crucial part of your bike's drivetrain, ensures a smooth and efficient power transmission from the engine to the rear wheel. Its robust construction, built to withstand the rigors of daily riding, guarantees longevity and reliability.

The 2-Bolt Gearbox Clutch, an integral part of the transmission, offers a reliable and responsive clutch engagement. Its simple yet effective design, featuring a spring-loaded clutch lever, provides a controlled and smooth release, enhancing your overall riding experience. The 2-bolt design ensures a secure fit, providing peace of mind on the open road.

This Harley-Davidson transmission and clutch system is a perfect choice for enthusiasts restoring vintage motorcycles or those seeking authentic parts for their classic Harley-Davidson. Each component is designed and manufactured to meet the exacting standards of the brand, ensuring a perfect fit and finish.

By choosing the Harley-Davidson 121-38 Flathead 45 WR Transmission 2-Bolt Gearbox Clutch, you are investing in a piece of motorcycling history, while ensuring your bike performs at its best. Ride with confidence and style, knowing you have chosen a component that embodies the spirit of Harley-Davidson.

Analysis of Harley-Davidson 121-38 Flathead 45 WR Transmission 2-Bolt Gearbox Clutch

1. Authenticity: This transmission is a part of Harley-Davidson's classic flathead engine era, which is highly sought after by collectors and enthusiasts.

2. Historical Significance: The flathead engine was in production from 1936 to 1973, making it a significant piece of motorcycling history.

3. Durability: Known for their robustness, these transmissions can handle high torque and are built to last.

4. Availability of Parts: Given their long production run, finding replacement parts is relatively easy.

1. Complexity: The 2-bolt gearbox clutch system can be difficult to maintain and repair for beginners due to its intricate design.

2. Incompatibility: This transmission is specific to the flathead engine and may not be compatible with other Harley-Davidson models or engines from other manufacturers.

3. Performance: While these transmissions are durable, they may not offer the same level of performance as modern transmissions.

4. Cost: Original parts can be expensive, especially if they are hard to find.

The Harley-Davidson 121-38 Flathead 45 WR Transmission 2-Bolt Gearbox Clutch is a valuable investment for collectors and enthusiasts of classic motorcycles. Its durability, historical significance, and the availability of parts make it a worthwhile purchase. However, potential buyers should be aware of the complexity involved in maintenance and repair, as well as the cost of original parts. If you are a beginner or looking for a high-performance transmission, you may want to consider a more modern model.

If you are a collector or enthusiast of classic motorcycles and have experience with maintenance and repair, this transmission could be an excellent addition to your collection. However, if you are a beginner or seeking a high-performance transmission, it might be more suitable to consider a modern model. Always ensure to research thoroughly and consult with experts before making a purchase.

Details:

This transmission is so clean that its easy to believe it may have never been run. There is assembly gear oil in case, and old grease that still visible on counter sprocket clutch release arm. Whats not included, No clutch release rod, kicker arm or pedal, pressure plate springs, Recommendations, Needs new top cover gasket, I would run this transmission in its current condition. The clutch hub parts do show normal wear but appear to be all in good condition.

Transmission shifts smoothly, kicker gears functioning properly. Possibly from NOS parts storage division. 1938 to 1940 Harley Flathead 45 WL WR Transmission 2-Bolt Gearbox w/Clutch Assay. Maybe surplus parts produced late.

I m happy to supply more pictures if needed. Whats included, Everything that is seen in pics. I've owned this transmission for decades and its been in my stash of projects that wanted to build but time let it go someone else who will use restore something cool. I m also available to answer questions over the phone if needed as well.

There is no visible wear on any components, marks or damage to case machined surfaces. 121-38, Date coded 1942, not sure why because two bolt frames ended in 1941.

part #: 12138 price

• $300.00

specifications cyclevintagee:

• for models: Wr
• for makes: Harley
• brand: Harley-davidson
• mpn: 121-38
• part type: Transmission Clutch
• oe/oem part number: 121-38 K2 1942

returns cyclevintagee:

• policy: No Returns

offer cyclevintagee:

• quantity: 1
• options: Ship-to-home
• availability: In Stock
• sold: 0
• started: September 11, 2025

shipping cyclevintagee:

• carrier: USPS
• service: USPS Ground Advantage
• cost: $121.60
• transit: 5-11 Days
• type: Calculated
• class: Standard

seller cyclevintagee:

• city: New River, Arizona
• rating: 100.0%
• # reviews: 1285

payments cyclevintagee:

• credit card: Mastercard
• wallet: Google-pay
• other

general cyclevintagee:

• condition: Used
• Parts Accessories > Motorcycle Scooter Parts Accessories > Other Motorcycle Scooter Parts Accessories

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