1. Antique, Vintage, Historic Motorcycle Parts For Sale
  2. sku: 16624871201270604
  3. HARLEY DAVIDSON 45648-36

HARLEY-DAVIDSON 45648-36 Springer Fork Top Acorn Lock Nuts Flathead

fits model: Knucklehead. make: Harley.

45648-36 Harley-davidson Oem Springer Fork Top Acorn Lock Nuts Knucklehead Flathead 45

( Brand: Harley-davidson ), ( Manufacturer Part Number: 45648-36 ), ( Part Type: Fork Lock ), ( Machine Type: Street ), ( Color: Silver ), ( Compatible Model: Knucklehead, Flathead, Big Twin, Panhead, 45, Wl, Servicar ), ( Material: Steel ), ( Vintage Part: Yes ), ( Placement On Vehicle: Front ), ( Compatible Make: For Harley-davidson ), ( Country/region Of Manufacture: United States ), ( Compatible Year: 1930 S, 1940 S, 1950 S )

Review HARLEY DAVIDSON Oem Springer Fork Top Acorn Lock Nuts Flathead 45 fits KNUCKLEHEAD

Harley-Davidson 45648-36 Springer Fork Top Acorn Lock Nuts - A Vintage-Inspired Upgrade for Your Knucklehead Flathead 45

Experience the authentic charm of classic Harley-Davidson motorcycles with the Harley-Davidson 45648-36 Springer Fork Top Acorn Lock Nuts. Designed specifically for the Knucklehead Flathead 45, these lock nuts elevate the style and security of your vintage motorcycle.

Crafted with precision and attention to detail, these lock nuts embody the timeless appeal of Harley-Davidson. The acorn-style design adds a touch of elegance to the top of your springer fork, blending seamlessly with the vintage aesthetics of your Knucklehead Flathead 45.

The lock nuts are not just about looks, though. They are also engineered for security. The acorn design ensures a secure fit, while the lock mechanism offers peace of mind, deterring any unwanted tampering or theft.

Installation is straightforward, making these lock nuts an easy upgrade for your Knucklehead Flathead 45. With their vintage appeal and modern security features, these Harley-Davidson 45648-36 Springer Fork Top Acorn Lock Nuts are a must-have accessory for any serious Harley-Davidson enthusiast.

Upgrade your Knucklehead Flathead 45 with the Harley-Davidson 45648-36 Springer Fork Top Acorn Lock Nuts. Not just a simple replacement, but a step towards enhancing the classic charm and security of your beloved motorcycle.

The Harley-Davidson 45648-36 Springer Fork Top Acorn Lock Nuts Knucklehead Flathead 45 is a specialized part for vintage Harley-Davidson motorcycles, specifically those with a Knucklehead or Flathead engine. Here's a breakdown of the pros and cons of purchasing this part:

Pros:

1. Authenticity: These nuts are designed specifically for Harley-Davidson motorcycles, ensuring a perfect fit and maintaining the original look of your bike.

2. Quality: Harley-Davidson is known for its high-quality parts, and these nuts are no exception. They are durable and designed to withstand regular use.

3. Security: The acorn lock nuts provide an additional layer of security for your motorcycle, preventing the fork tops from being easily removed.

4. Aesthetic Appeal: The traditional design of these nuts adds to the classic look of your Knucklehead or Flathead motorcycle.

Cons:

1. Cost: As with many Harley-Davidson parts, these nuts can be quite expensive compared to aftermarket alternatives.

2. Limited Use: These nuts are specific to Knucklehead and Flathead models, so they may not be useful for other Harley-Davidson motorcycles.

3. Availability: Due to their specialized nature, these nuts may be harder to find or more expensive if they are out of stock or discontinued.

In conclusion, if you own a Knucklehead or Flathead Harley-Davidson and want to maintain its originality and security, the 45648-36 Springer Fork Top Acorn Lock Nuts are a worthwhile investment, despite their cost. However, if cost is a concern or if your motorcycle is a different model, you may want to consider aftermarket alternatives or used parts. Always ensure that any parts you purchase are compatible with your specific motorcycle model and year.

Details:

OEM Harley Springer Fork Top Acorn Lock Nuts 45648-36 Knucklehead Flathead 45 Good old original parts, with a great look.

part #: 4564836 prices

  • $21.95-$36.99

specifications cyclevintagee:

  • for models: Knucklehead
  • for makes: Harley
  • brand: Harley-davidson
  • mpn: 45648-36
  • part type: Fork Lock
  • machine type: Street
  • color: Silver
  • compatible model: Knucklehead, Flathead, Big Twin, Panhead, 45, Wl, Servicar
  • material: Steel
  • vintage part: Yes
  • placement on vehicle: Front
  • compatible make: For Harley-davidson
  • country/region of manufacture: United States
  • compatible year: 1930 S, 1940 S, 1950 S

shipping cyclevintagee:

  • type: Calculated
  • service: USPS First Class
  • class: Standard
  • transit: 3-8 Days
  • carrier: USPS
  • cost: $7.85

general cyclevintagee:

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

offer cyclevintagee:

  • best offers: True
  • quantity: 1
  • started: July 23, 2025
  • availability: In Stock
  • sold: 0
  • options: Ship-to-home

seller cyclevintagee:

  • city: wood lawn, Illinois
  • # reviews: 2081
  • rating: 100.0%

payments cyclevintagee:

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

returns cyclevintagee:

  • policy: Returns Accepted
  • time: 30 Days
  • paid by: Buyer
for models: knucklehead, for makes: harley, part type: fork lock, machine type: street, compatible model: knucklehead, flathead, big twin, panhead, 45, wl, servicar, vintage part: yes, placement on vehicle: front, compatible make: for harley-davidson, country/region of manufacture: united states, compatible year: 1930 s, 1940 s, 1950 s,
category: motorcycle parts > motorcycle scooter parts accessories, color: silver, material: steel, sku: 16624871201270604,
Harley-davidson 45648-36 Is Similar To:
  • (31.8% similar) Carb dirty needs rebuild probably has been sitting for years as pictured any questions ask thanks...(February 25th, 2018)
  • (36.1% similar) This is pauperized and made in USA. The wrench part and socket this offer is for a reproduction spark plug. This wrench is a must for harley 45S with aluminum heads and great all other Harley's as well...(March 2nd, 2017)
  • (27.2% similar) Part 1LB OS set of rings fits 1924 to motors there is no rust 1937 twins compression 4 per box offer for 2 boxes. 1924 CB motors new old stock in box piston rings...(January 4th, 2018)
  • (40.6% similar) This offer is for 2 high quality reproduction foot boards. These foot boards are powder coated and ready to install. This offer is for 2 powder coated foot boards...(April 13th, 2017)
  • (34.5% similar) Sportswear-zilch new old stock sprocket assembly. It is original harley and fits. Part 71A 10LBS. This is for kick and electric start. This is hard to find...(November 15th, 2017)
  • (32.2% similar) This is a throttle cable bracket for 1936-UP harley Davidson's. I also have one un chromed. It has been chromed...(November 25th, 2017)
  • (32.7% similar) Harley davidson armchair rear sprocket 27 65P later new old stock...(June 5th, 2018)
  • (35.3% similar) This offer is for a set reproduction dash cover lens windows gaskets. Free shipping in the USA. These will fit 1936 to 1938 harley knuckleheads and URLs. Harley wl 45S and servi cars...(November 2nd, 2017)
  • (38% similar) Topper new old stock in box front fork spring kit original end fits there is no rust comes with bolt and spacer great. Part 59A 2LB...(December 25th, 2017)
  • (32.5% similar) Going through boxes listing as they come out. Will combined ship. Fuel line straight down. More to come. Needs a good cleaning came off original mid 70S preclude tank single passages are, has factory nut and filter. Selling all harley parts packed away 20 yrs ago...(July 23rd, 2017)
  • (30.6% similar) Do not pay before I have a chance to box and weigh. Genuine original nos x 19 1/6 4, plain steel washers. Thanks, zeal. All questions answered within 24 hours. I ship worldwide. Also work great for chiming motor mounts. I will use USPS and ship the cheapest way possible...(September 14th, 2017)
cyclevintagee logo
5 offers $21.95–$36.99 USD
  • New. Offer #1 priced at $21.95 + $8.60 shipping estimate = $30.55* total. Retainers were used from 1930 to 1957 on all spring forks models, the acorn nuts were used from 1936 through 1957 on springer equipped models. Machining is spot-on and parkerizing is perfect.+$8.60 shipping
  • New. Offer #2 priced at $36.99 + $0.00 shipping estimate = $36.99* total. OEM cross reference part# : . Accessory: 16-0178 Spring Fork Nut Tool.FREE SHIPPING
  • New. Offer #3 priced at $36.99 + $0.00 shipping estimate = $36.99* total. FREE SHIPPING
  • New. Offer #4 priced at $27.95 + $8.60 shipping estimate = $36.55* total. 1937-1948 U, UL, ULH, UH 74 & 80 BT Sidevalve flathead. Retainers were used from 1930 to 1957 on all spring forks models.+$8.60 shipping
  • New. Offer #5 priced at $42.95 + $8.60 shipping estimate = $51.55* total. You are purchasing one reproduction set of OEM 2634-30 or 45647-30 spring fork retainer rod nuts and 2634-36 or parkerized acorn nuts.+$8.60 shipping

Copyright © cyclevintagee.com