Precision Reamer for Manganese Bronze Valve Guides — 8.6 mm (0.3370\"), 181 mm (7.125\")

KIBBLEWHITE Precision Reamer for Manganese Bronze Valve Guides — 8.6 mm (0.3370\"), 181 mm (7.125\") – 36-47 Big Twin

KIBBLEWHITE
3801-0242
GR-3770

Precision reamer engineered for KPMI manganese bronze and cast iron valve guides. Not for C630 nickel aluminum bronze. Cutting diameters +/- .0002".

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€90.09
€121.94
Save €31.85
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.

Designed specifically for KPMI® manganese bronze and cast iron valve guides, these precision reamers deliver consistent, accurate sizing for sensitive engine work. 🔧

Key points:

  • These reamers have been specifically designed for KPMI® manganese bronze and cast iron valve guides.
  • Also, once a reamer is used on cast iron, it is not advisable to then use it on a bronze guide.
  • Do not attempt to use these reamers to size C630 Nickel Aluminum Bronze guides.
  • All cutting diameters are +/- .0002".

Manufactured to tight tolerances and intended only for the specified guide materials; improper use can damage both the tool and the guide.

: 3801-0242
In Stock

Data sheet

Type
Valve Guide
Units
Each
Color/Finish
Nickel
Brand
KIBBLEWHITE
Outside Diameter
8.6 mm (0.3370")
Measurement System
SAE
Overall Length
181 mm (7.125")
Material
Steel

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