Product Summary

Universal Fit

  • 1/4" Inside diameter
  • 1/2" Outside Diameter
  • Sold each
See more details

Key Specs

MFG. Part #KNURL 1/4" ID
BrandSpecialty Power Windows
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Specialty Power Windows KNURL 1/4" ID Details

Specialty Power Windows introduces this wiper knurl stub. Wiper knurl stub has a 1/4 inch inside diameter and a 1/2 inch outer diameter with splines. Sold each.

  • 0.25" inside diameter
  • 0.50" outer diameter
  • Sold each

Specialty Power Windows KNURL 1/4" ID Specifications

KEY SPECS
MFG. Part #KNURL 1/4" ID
BrandSpecialty Power Windows
GENERAL
Sold in QuantityEach
Notes(2) TAPPED HOLES. (2) DOG POINT SET SCREWS

Ratings & Reviews

4.7

19 Reviews

Overall Assessment

Customers rate our product practically useful for various vintage cars such as 1954 Chevy truck, 1956 Ford F100, 1966 Chevy P10 and 41 Dodge Coupe. While some modification may be required, the component is versatile and adaptable. Users highlighted the good quality and excellent fit, acknowledging its utility in maintaining originality on vehicle projects. Some suggest the inclusion of an extra set screw. Despite the need for minor adjustments like filing down the set screw for fit, the component delivers reliable performance.

4.7

19 reviews

5

16

4

1

3

1

2

1

1

0

Most Liked Positive Review

5.0

Exactly what I needed!!!!

I could not find the original wiper axles with good knurl and this Lil piece rite here saved the originality on my 1966 chevy P10. With a Lil machining we good to wipe off another 50 years.

Most Liked Negative Review

3.0

Cheaply made but useable

It works to convert 1/4" wiper motor shaft to a 1/2" . The set screw is too long so you either have to grind the point off the set screw (losing its ability to bite into the shaft) or grind a rather large flat on the wiper motor shaft. Don't forget to add a little blue loctite to the set screw so it doesn't loosen.

Filter by Ratings

I would definitely recommend this product

5.0

3 months ago

Big Dog

Sterling. Co.

Verified

I replaced the wiper knurls on my 41 Ford coupe. These fit great and are direct replacements - great product that is hard to find - thank you Speedway for having them in stock.

Would Recommend

Yes.

5.0

a year ago

Nash

Hawaii

Verified

For my wipers.

Would Recommend

Definitely a life saver on my 1954 dodge c3

5.0

a year ago

Papa "D"

Coupeville Wa

Verified

Fit like a charm!!! Was able to use as a alternative option!!

Would Recommend

I would buy this product againl

5.0

2 years ago

Smitty

Southaven Ms

Verified

Replaced broken knurl nuts for wiper arms.

Would Recommend

Perfecto.

5.0

2 years ago

Jack

Seal Beach, CA

Verified

Great experience from beginning to end.

Would Recommend

didn't fit 55 ford F100

2.0

5 years ago

mustangtoo

yakima

Verified

Unfortunately this "universal" fit item did not work for the wipers on my 55 F100. But it was inexpensive enough to take a gamble on and I'm sure I'll need it on another project.

Would Recommend

Yes

5.0

6 years ago

None

Vallejo

Verified

I have a 41 Dodge Coupe. I was not able to find the original piece. With a little bit of modification this work perfect

Would Recommend

Cheaply made but useable

3.0

6 years ago

gcpoland

Kingston, NH

Verified

It works to convert 1/4" wiper motor shaft to a 1/2" . The set screw is too long so you either have to grind the point off the set screw (losing its ability to bite into the shaft) or grind a rather large flat on the wiper motor shaft. Don't forget to add a little blue loctite to the set screw so it doesn't loosen.

Would Not Recommend

needed it got it

4.0

7 years ago

ding

iowa

Verified

all in all good quality for the price and great service getting it out

Would Recommend

I would buy again. Great find

5.0

7 years ago

DKJ

Ogden, Utah

Verified

Fit the shaft & allowed me to mount my wipers on a 1954 chevy truck. Had to file set screw down to get wiper arm over it. I would buy again.

Would Recommend

Load More Reviews

Showing 10 of 19 reviews

Questions & Answers

1 Question • 1 Answer

My 1965 Volvo amazon has 1/4" drive post for mounting the bushings. What does the bottom or other side look like? Is it like what is shown i n this image or is there a recess for a 3/8 or so washer/seal ring? I like the set screw feature and would like to use these. Thanks

by Mike

• 3 years ago

1 answer

1 of 1 questions shown

Customer Impersonation Script