Menu

Shop

Garage

Cart

Account

Product Summary

Universal Fit, 3.17" Overall Length, Steel, Natural

  • If you are looking for a basic filler neck and cap for your custom build or repair then this kit is for you
  • Features a vented cap which vents to the underside to release pressure buildup
  • Cap is 2-3/4" diameter making it large enough to use as a fuel filler
  • 2-1/4" OD steel neck is easily welded to steel tanks
  • Cap is zinc plated to resists corrosion
See more details

Key Specs

MFG. Part #6175020
BrandSpeedway Motors
Material TypeSteel
FinishNatural
Gasket(s) IncludedYes
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 6175020 Details

If you’re looking for a basic filler neck and cap for your custom build or repair, we have a great economical kit for you. 

A filler neck made from mild steel and a natural finish can be welded to any steel fuel or oil tank and is 2.75” in diameter, 1.25” in height with a 2.25” O.D. bung. 

A twist-on style, vented steel cap is included with a durable zinc finish. The cap is vented to the underside and includes a rubber gasket seal. This cap is 1.875” across the lock tabs. 

Make your tank build simple with our Universal Steel Oil & Fuel Tank Filler Neck with Cap. 

  • Mild steel filler neck welds easily to any steel tank
  • Twist-on, vented, zinc-plated steel cap is included
  • Works for fuel or oil tanks

Speedway Motors 6175020 Specifications

KEY SPECS
MFG. Part #6175020
BrandSpeedway Motors
Material TypeSteel
FinishNatural
Gasket(s) IncludedYes
GENERAL
Overall Length3.17"
Overall Height1.625"
Inside Diameter1.50"
Outside Diameter2.25"
Sold in QuantityEach
NotesFiller neck is natural finish, cap is zinc plated.

Ratings & Reviews

4.7

35 Reviews

Overall Assessment

Customers positively reviewed our product for its practicality and quality. The cap is often praised as a direct-fit replacement that eliminates overflow or seepage, exhibiting its usability and material quality. Many customers used the product on varying vehicles like old radiators, custom fuel cells, hot rods, and vintage cars, suggesting its versatility. Its bare metal is easily weldable, and customers claim it's beneficial for repositioning fuel inlets. However, some customers noted the neck could be longer, and the cap feels cheap. Despite these, the product seems to offer unique solutions not found elsewhere.

4.7

35 reviews

5

27

4

7

3

0

2

0

1

1

Most Liked Positive Review

4.0

Filler Twist cap w/steel neck

I used this piece on a custom fuel cell i was putting together for a piece of industrial equipment. It perfectly suited my needs in a fuel cap, but i had some difficulty welding the mount. Granted, i was welding it to a galvanized elbow, but the material of the filler neck seemed to be steel coated in some way as well. It took some grinding to get it to work, but the material is pretty thin, too. All in all, it suited my needs and does its job properly.

Most Liked Negative Review

1.0

Fail !

The gasket swelled and the cap will not go on the way and leaks gas. Nothing like having a leaking gas tank in the dunes on your rail!

Filter by Ratings

It's fits well

4.0

6 months ago

Jay

Montana

Verified

Replacement parts for a 580 case fuel tank the original pipe and filler cap was rusted through. Used a 2 inch x 10 inch aluminized exhaust pipe and attached the cat to it.

Would Recommend

Solid!

5.0

11 months ago

AK

Los Angeles

Verified

Ended up using it for a modified motorcycle fuel tank setup. Excellent quality!

Would Recommend

I would

5.0

a year ago

None

Montana

Verified

Used it in a gas tank worked good

Would Recommend

I would definitely buy this again

5.0

4 years ago

CK

Wisconsin

Verified

Product worked great and was exactly what I needed. Added speedwaymotors.com to my favorites bar on my computer.

Would Recommend

Yes

5.0

4 years ago

Bruce

Medford, or

Verified

Used om my 30 tub

Would Recommend

Gas filler & Cap

5.0

4 years ago

Blue Keith

Port Townsend, WA

Verified

Used on my '40 Ford

Would Recommend

yes I would buy this product again

5.0

4 years ago

Blue

Port Townsend, WA

Verified

Use it on my '40 Ford

Would Recommend

A little short

4.0

4 years ago

56 Effie

KY

Verified

I didn't need the cap and the bung was a little short, but just what I needed.

Would Recommend

Works great

5.0

5 years ago

Greg

Pittsburgh pa

Verified

Exactly what i needed.

Would Recommend

Absolutely buy product again

5.0

5 years ago

Bulldog Sheetmetal Fab

Salt Lake Utah

Verified

Great bare metal easily welded !

Would Recommend

Load More Reviews

Showing 10 of 35 reviews

Customer Impersonation Script