Mishimoto 42mm Aluminum CNC Fill Neck

SKU: MISMMFN-L

Radiator Filler Necks

MM Coolant Fill Necks...

Mishimoto

Mishimoto 42mm Aluminum CNC Fill Neck

SKU: MISMMFN-L

Radiator Filler Necks

MM Coolant Fill Necks...

Sale ends in Calculating... Sun 18 Oct, 4:05 am AEST

IN STOCK! Est Ship 3-5 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.

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Description

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 large Mishimoto CNC machined Aluminum Fill Neck is 42mm and includes a screw-in nipple for overflow.

Product Overview

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 large Mishimoto CNC machined Aluminum Fill Neck is 42mm and includes a screw-in nipple for overflow. The small Mishimoto CNC machined Aluminum Fill Neck is 32mm and also include a screw-in nipple for overflow.

Features and Benefits

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

Product Details

Alternate Part Number:	MMFN-L
Description:	Mishimoto Aluminum Fill Neck, Large
Install Difficulty:	1
Material:	Aluminum
OptionLabel:	Large
Part Number:	misMMFN-L
Prop 65 (C, R or CR):	CR
Prop 65 - Short Label:	prop65_warning.jpg
Prop 65 Yes/No:	Yes
SellingPoint01:	CNC machined aluminum universal large fill neck
SellingPoint02:	Ready to be welded for custom application
SellingPoint03:	Aluminum fill neck fits with Mishimoto Radiator Cap
SellingPoint04:	Includes screw-in nipple for overflow
SellingPoint05:	Mishimoto Lifetime Warranty
SellingPoint06:	N/A
SellingPoint07:	N/A
SellingPoint08:	N/A
SellingPoint09:	N/A
SellingPoint10:	N/A
SellingPoint11:	N/A
SellingPoint12:	N/A
SellingPoint13:	N/A
SellingPoint14:	N/A
SellingPoint15:	N/A
Size:	42mm
TechSpec Applications:	N/A
TechSpec Diameter (Inches):	N/A
TechSpec Engine Codes:	N/A
TechSpec Includes:	N/A
TechSpec Installation Notes:	N/A
TechSpec Length (Inches):	N/A
TechSpec Material:	Aluminum
TechSpec Maximum Pressure (PSI):	N/A
TechSpec Maximum Temperature (F):	N/A
TechSpec Minimum Yield Strength:	N/A
TechSpec Note:	N/A
TechSpec Overall Height (Inches):	N/A
TechSpec Thread Size:	N/A
TechSpec Ultimate Tensile Strength:	N/A
TechSpec Weight (Ounces):	N/A
Title:	Mishimoto Mishimoto Aluminum Fill Neck, Large

Application Summary

Universal Fitment

Part Type

Radiator Fitting

Data: v4.2 - Upd: 2026-10-17 01:22:45

Features

Aluminum fill neck fits with Mishimoto Radiator Cap
CNC machined aluminum universal large fill neck
Ready to be welded for custom application

Specifications

Product Attributes - UPC: 748354803853
Product Attributes - Brand: Mishimoto
Product Attributes - Quantity: Sold individually.
Product Attributes - Part Type: Radiator Filler Necks
Product Attributes - Product Line: Mishimoto Coolant Fill Necks
Product Attributes - Gaskets Included: No
Product Attributes - Hardware Included: No
Product Attributes - Radiator Cap Included: No
Product Attributes - Manufacturer's Part Number: MMFN-L
Product Attributes - Radiator Filler Neck Style: Weld-on
Product Attributes - Radiator Filler Neck Finish: Polished
Product Attributes - Radiator Filler Neck Material: Aluminum

Reference Information

Brand Name/s	Mishimoto
StreetFX SKU	misMMFN-L
SFX Item ID	4048949
Supplier Item Code	4048949
Manufacturer SKU	MMFN-L
Manufacturer UPC	748354803853
Alternative References	42mm