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Heating and Cooling Thermostats, Housings and Fillers

Mishimoto

Mishimoto 32mm Aluminum CNC Fill Neck

$25.00 $21.95 Save $3.05

SKU: M00C MMFN-S

In Stock
In Stock
Ships by Aug 3
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: MMFN-S

If you manufacture your own aluminum radiator, the Mishimoto Aluminum Coolant Fill Neck is a must-have.The Mishimoto Aluminum Coolant Fill Necks are CNC machined and ready to be welded for use with your custom project.These Aluminum Fill Necks are compatible with our Mishimoto Radiator Caps.The small Mishimoto CNC machined Aluminum Fill Neck is 32mm and includes a screw-in nipple for overflow.

Features:

  • CNC machined aluminum universal small fill neck
  • Ready to be welded for custom application
  • Aluminum fill neck fits with Mishimoto Radiator Cap
  • Includes screw-in nipple for overflow
  • Mishimoto Lifetime Warranty

Mishimoto Aluminum Fill Neck, Small

MIA's Description

The Mishimoto MMFN-S is a weld-on aluminum coolant fill neck. It features a 32mm inner diameter and includes a screw-in nipple for overflow.

This product is sold individually and does not include a radiator cap, gaskets, or hardware. It is suitable for custom projects where a fabricated aluminum radiator is being manufactured.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandMishimoto
Part NumberM00C MMFN-S

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Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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