OEM Replacement Valve Spring Kit — 0.415" lift, 270 lb open pressure, 127 lb seat pressure

KIBBLEWHITE OEM Replacement Valve Spring Kit — 0.415" lift, 270 lb open pressure, 127 lb seat pressure – 36-47 Big Twin

KIBBLEWHITE
0926-1441
20-20425

Restores stock spring pressures and works with stock cam profiles for reliable valve control.

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€146.01
€197.68
Save €51.67
local_shipping In stock, ships in 20-25 days
Quantity

  Delivery policy

In stock items will be shipped within 1-3 days.

  Return policy

You can return the products within 14 days for a full refund, check our returns policy.

The OEM Replacement Valve Spring Kit is engineered to restore factory spring pressures and maintain compatibility with stock cam profiles.

Retainers, keepers, and bases are modeled using finite element analysis to maximize mechanical strength and durability under repeated use.

Springs are wound from Super Clean chrome silicon valve spring wire, then heat treated and shot peened for consistent performance and long life.

Manufactured to original O.E.M. specifications using modern materials and processes, and made in the USA.

: 0926-1441
In Stock

Data sheet

Type
Valve
Units
Kit
Brand
KIBBLEWHITE
Application
Exhaust, Intake
Spring Seat Pressure
127 lb
Spring Open Pressure
270 lb
Spring Lift
0,415"
0.415"
Collar Material
H.T. Steel
Material
Chromium Silicon Alloy

Shipping Policy

Shipping Areas:

We ship to:

  • Spain (Peninsula and Balearic Islands)
  • European Union countries

We do not ship to the Canary Islands, Ceuta, or Melilla.

Shipping Times:

  • Spain (Peninsula): 2–4 business days
  • Balearic Islands: 3–5 business days
  • EU countries: 3–7 business days depending on destination

Shipping Costs:

Shipping costs are calculated automatically at checkout based on destination and weight.

Free shipping may be offered for qualifying orders, as specified on our website.

Order Processing:

Orders are processed within 1–2 business days after payment confirmation. Orders placed on weekends or public holidays are processed the next business day.

Delivery Issues:

If your order is delayed or arrives damaged, you must notify us within 14 calendar days. We will investigate the issue and offer a resolution in accordance with applicable consumer protection laws.

Return & Withdrawal Policy

Right of Withdrawal:

In accordance with Royal Legislative Decree 1/2007 (Ley de Defensa de los Consumidores y Usuarios), you have the right to withdraw from your purchase within 14 calendar days from the date of receipt, without giving any reason.

To exercise this right, contact us via email or through our website, providing your order number and contact details.

Return Conditions:

  • Products must be unused, in original condition and packaging.
  • Return shipping costs are the responsibility of the customer, unless the product is defective or sent in error.
  • Refunds will be issued within 14 days of receiving the returned goods.

Items Excluded from Return:

  • Custom or personalized products
  • Sealed items that were unsealed after delivery and are unsuitable for return due to hygiene (e.g. cosmetics, personal care)
  • Digital content delivered electronically once download or streaming has begun

If you want to return an item, please contact us first to give you detailed instructions.

This product fits the following vehicles. Use the filters below to narrow down the list if needed.

Manufacturer Model Family Year Notes
Harley Davidson Big Twin 1936
Harley Davidson Big Twin 1937
Harley Davidson Big Twin 1938
Harley Davidson Big Twin 1946
Harley Davidson Big Twin 1947
Harley Davidson Big Twin 1936
Harley Davidson Big Twin 1937
Harley Davidson Big Twin 1938
Harley Davidson Big Twin 1939
Harley Davidson Big Twin 1940
Harley Davidson Big Twin 1941
Harley Davidson Big Twin 1942
Harley Davidson Big Twin 1943
Harley Davidson Big Twin 1944
Harley Davidson Big Twin 1945
Harley Davidson Big Twin 1946
Harley Davidson Big Twin 1947
Harley Davidson Big Twin 1946
Harley Davidson Big Twin 1947
Harley Davidson Big Twin 1941
Harley Davidson Big Twin 1942
Harley Davidson Big Twin 1943
Harley Davidson Big Twin 1944
Harley Davidson Big Twin 1945
Harley Davidson Big Twin 1946
Harley Davidson Big Twin 1947