Menu
Search
Filters
Close
Menu

Bosses-Spacers

  • Home /
  • Bosses-Spacers

Learn More

Hepfner Racing Products offers a wide range of machined components. We can also custom make items to your specifications with our in house machine shop. Call or send us a print today.

King Pin Bosses

Picture for category King Pin Bosses

Threaded Tube Ends

Picture for category Threaded Tube Ends

Spacer Kits

Picture for category Spacer Kits

Titanium Bosses

Picture for category Titanium Bosses

1/2" OD x 1/4-20 Thread

Picture for category 1/2" OD x 1/4-20 Thread

1/2" OD x 1/4-28 Thread

Picture for category 1/2" OD x 1/4-28 Thread

5/8" OD x 5/16-18 Thread

Picture for category 5/8" OD x 5/16-18 Thread

5/8" OD x 5/16-24 Thread

Picture for category 5/8" OD x 5/16-24 Thread

5/8" OD x 3/8-16 Thread

Picture for category 5/8" OD x 3/8-16 Thread

5/8" OD x 3/8-24 Thread

Picture for category 5/8" OD x 3/8-24 Thread

5/8" OD x 7/16-20 Thread

Picture for category 5/8" OD x 7/16-20 Thread

3/4" OD x 7/16-14 Thread

Picture for category 3/4" OD x 7/16-14 Thread

3/4" OD x 7/16-20 Thread

Picture for category 3/4" OD x 7/16-20 Thread

3/4" OD x 1/2-13 Thread

Picture for category 3/4" OD x 1/2-13 Thread

3/4" OD X 1/2-20 Thread

Picture for category 3/4" OD X 1/2-20 Thread

1/2" OD x 3/8" ID Thru

Picture for category 1/2" OD x 3/8" ID Thru

1/2" OD x 5/16" ID Thru

Picture for category 1/2" OD x 5/16" ID Thru

1/2" OD x 1/4" ID Thru

Picture for category 1/2" OD x 1/4" ID Thru

1/2" OD x 3/16" ID Thru

Picture for category 1/2" OD x 3/16" ID Thru

5/8" OD x 7/16" ID Thru

Picture for category 5/8" OD x 7/16" ID Thru

5/8" OD x 3/8" ID Thru

Picture for category 5/8" OD x 3/8" ID Thru

5/8" OD x 5/16" ID Thru

Picture for category 5/8" OD x 5/16" ID Thru

3/4" OD x 1/2" ID Thru

Picture for category 3/4" OD x 1/2" ID Thru

3/4" OD x 7/16" ID Thru

Picture for category 3/4" OD x 7/16" ID Thru

7/8" OD x 5/8" ID Thru

Picture for category 7/8" OD x 5/8" ID Thru

1.0" OD x 3/4" ID Thru

Picture for category 1.0" OD x 3/4" ID Thru

Pinch Tube Bosses

Picture for category Pinch Tube Bosses

Specialty Bosses

Picture for category Specialty Bosses
View as
Sort by
Display per page
Picture of Aluminum Spacer 0.406" Long, 0.500" ID X 1.00" OD

Aluminum Spacer 0.406" Long, 0.500" ID X 1.00" OD

HRP5380F
$2.75
Picture of Aluminum Spacer 0.437" Long, 0.312" ID X 0.625" OD

Aluminum Spacer 0.437" Long, 0.312" ID X 0.625" OD

HRP5381B
$2.75
Picture of Aluminum Spacer 0.437" Long, 0.437" ID X 0.750" OD

Aluminum Spacer 0.437" Long, 0.437" ID X 0.750" OD

HRP5381D
$2.75
Picture of Aluminum Spacer 0.437" Long, 0.500" ID X 0.750" OD

Aluminum Spacer 0.437" Long, 0.500" ID X 0.750" OD

HRP5381E
$2.75
Picture of Aluminum Spacer 0.437" Long, 0.500" ID X 1.00" OD

Aluminum Spacer 0.437" Long, 0.500" ID X 1.00" OD

HRP5381F
$2.75
Picture of Aluminum Spacer 0.484" Long, 0.312" ID X 0.625" OD

Aluminum Spacer 0.484" Long, 0.312" ID X 0.625" OD

HRP5382B
$2.75
Picture of Aluminum Spacer 0.484" Long, 0.437" ID X 0.750" OD

Aluminum Spacer 0.484" Long, 0.437" ID X 0.750" OD

HRP5382D
$2.75
Picture of Aluminum Spacer 0.484" Long, 0.500" ID X 0.750" OD

Aluminum Spacer 0.484" Long, 0.500" ID X 0.750" OD

HRP5382E
$2.75
Picture of Aluminum Spacer 0.484" Long, 0.500" ID X 1.00" OD

Aluminum Spacer 0.484" Long, 0.500" ID X 1.00" OD

HRP5382F
$2.75
Picture of Aluminum Spacer 0.500" Long, 0.312" ID X 0.625" OD

Aluminum Spacer 0.500" Long, 0.312" ID X 0.625" OD

HRP5383B
$2.75
Picture of Aluminum Spacer 0.500" Long, 0.375" ID X 0.625" OD

Aluminum Spacer 0.500" Long, 0.375" ID X 0.625" OD

HRP5383C
$2.75
Picture of Aluminum Spacer 0.500" Long, 0.437" ID X 0.750" OD

Aluminum Spacer 0.500" Long, 0.437" ID X 0.750" OD

HRP5383D
$2.75
Picture of Aluminum Spacer 0.500" Long, 0.500" ID X 0.750" OD

Aluminum Spacer 0.500" Long, 0.500" ID X 0.750" OD

HRP5383E
$2.75
Picture of Aluminum Spacer 0.500" Long, 0.500" ID X 1.00" OD

Aluminum Spacer 0.500" Long, 0.500" ID X 1.00" OD

HRP5383F
$2.75
Picture of Aluminum Spacer 0.343" Long, 0.312" ID X 0.625" OD

Aluminum Spacer 0.343" Long, 0.312" ID X 0.625" OD

HRP5384B
$2.75
Picture of Aluminum Spacer 0.343" Long, 0.375" ID X 0.625" OD

Aluminum Spacer 0.343" Long, 0.375" ID X 0.625" OD

HRP5384C
$2.75
Picture of Aluminum Spacer 0.343" Long, 0.437" ID X 0.750" OD

Aluminum Spacer 0.343" Long, 0.437" ID X 0.750" OD

HRP5384D
$2.75
Picture of Aluminum Spacer 0.343" Long, 0.500" ID X 0.750" OD

Aluminum Spacer 0.343" Long, 0.500" ID X 0.750" OD

HRP5384E
$2.75
Picture of Aluminum Spacer 0.343" Long, 0.500" ID X 1.00" OD

Aluminum Spacer 0.343" Long, 0.500" ID X 1.00" OD

HRP5384F
$2.75
Picture of Boss 1/2" Long 1/4 ID Thru, Material 0.50 OD x 0.120, 4130

Boss 1/2" Long 1/4 ID Thru, Material 0.50 OD x 0.120, 4130

HRP3400T
$6.20
Picture of Boss 1 1/4" Long 7/16 ID Thru, Material 0.625 OD x 0.095, 4130

Boss 1 1/4" Long 7/16 ID Thru, Material 0.625 OD x 0.095, 4130

HRP3406V
$7.50
Picture of Boss 2 3/8" Long 5/16 x 24, Material 0.625 OD x 0.187, 4130

Boss 2 3/8" Long 5/16 x 24, Material 0.625 OD x 0.187, 4130

HRP3415B
$9.50

Rod End Boss LH 3/4" Thread, Fits 1.25" OD, 0.083 Wall

HRP3216W-LH
$9.75

Rod End Boss RH 3/4" Thread, Fits 1.25" OD, 0.083 Wall

HRP3217W-RH
$9.75
Picture of Boss .812 Long .312 Thru, Material .625" x .156" Wall 4130

Boss .812 Long .312 Thru, Material .625" x .156" Wall 4130

HRP3229
$2.05
Picture of Boss .500 Long .26 Thru, Material .500" OD x .120" 4130

Boss .500 Long .26 Thru, Material .500" OD x .120" 4130

HRP3232
$2.05
Picture of Boss .500 Long .315 Thru, Material .500" ID x .120" Wall 4130

Boss .500 Long .315 Thru, Material .500" ID x .120" Wall 4130

HRP3233
$1.95
Picture of Boss 1" Long 3/8 ID Thru, Material .625" OD x .120" Wall 4130

Boss 1" Long 3/8 ID Thru, Material .625" OD x .120" Wall 4130

HRP3404W-1
$7.00
Picture of Boss 1" Long 3/8 ID Thru, Material .625" OD x .120" Wall Stainless Steel

Boss 1" Long 3/8 ID Thru, Material .625" OD x .120" Wall Stainless Steel

HRP3404W-SS
$8.00
Picture of Spacer, Aluminum 0.060 Long, 0.250" ID X 0.500" OD

Spacer, Aluminum 0.060 Long, 0.250" ID X 0.500" OD

HRP5370A
$1.80
Picture of Spacer, Aluminum 0.090" Long, 0.250" ID X 0.500" OD,

Spacer, Aluminum 0.090" Long, 0.250" ID X 0.500" OD,

HRP5371A
$1.80
Picture of Spacer, Aluminum 0.125 Long, 0.250" ID X 0.500" OD

Spacer, Aluminum 0.125 Long, 0.250" ID X 0.500" OD

HRP5372A
$1.80
Picture of Spacer, Aluminum 0.156 Long, 0.250" ID X 0.500" OD

Spacer, Aluminum 0.156 Long, 0.250" ID X 0.500" OD

HRP5373A
$1.80
Picture of Spacer, Aluminum 0.187 Long, 0.250" ID X 0.500" OD

Spacer, Aluminum 0.187 Long, 0.250" ID X 0.500" OD

HRP5374A
$1.80
Picture of Spacer, Aluminum 0.218 Long, 0.250" ID X 0.500" OD

Spacer, Aluminum 0.218 Long, 0.250" ID X 0.500" OD

HRP5375A
$2.25
Picture of Spacer, Aluminum 0.250 Long, 0.250" ID X 0.500" OD

Spacer, Aluminum 0.250 Long, 0.250" ID X 0.500" OD

HRP5376A
$2.25
Picture of Spacer, Aluminum 0.281 Long, 0.250" ID X 0.500" OD

Spacer, Aluminum 0.281 Long, 0.250" ID X 0.500" OD

HRP5377A
$2.25
Picture of Spacer, Aluminum 0.281 Long

Spacer, Aluminum 0.281 Long

HRP5377B
$2.25
Picture of Spacer, Aluminum 0.312 Long, 0.250" ID X 0.500" OD

Spacer, Aluminum 0.312 Long, 0.250" ID X 0.500" OD

HRP5378A
$2.25
Picture of Spacer, Aluminum 0.375 Long, 0.250" ID X 0.500" OD

Spacer, Aluminum 0.375 Long, 0.250" ID X 0.500" OD

HRP5379A
$2.25
Picture of Spacer, Aluminum 0.406 Long, 0.250" ID X 0.500" OD

Spacer, Aluminum 0.406 Long, 0.250" ID X 0.500" OD

HRP5380A
$2.75
Picture of Spacer, Aluminum 0.437 Long, 0.250" ID X 0.500" OD

Spacer, Aluminum 0.437 Long, 0.250" ID X 0.500" OD

HRP5381A
$2.75
Picture of Spacer, Aluminum 0.484 Long, 0.250" X 0.500" OD

Spacer, Aluminum 0.484 Long, 0.250" X 0.500" OD

HRP5382A
$2.75
Picture of Spacer, Aluminum 0.500" Long, 0.250" ID X 0.500" ID

Spacer, Aluminum 0.500" Long, 0.250" ID X 0.500" ID

HRP5383A
$2.75
Picture of Spacer, Aluminum 0.343 Long, 0.250" ID X 0.500" OD

Spacer, Aluminum 0.343 Long, 0.250" ID X 0.500" OD

HRP5384A
$2.75
Picture of Rod End Boss LH 5/8 Thread, Fits 1.125" OD, 0.058" Wall, No Shoulder

Rod End Boss LH 5/8 Thread, Fits 1.125" OD, 0.058" Wall, No Shoulder

HRP3201W-LH
$10.00
Picture of Rod End Boss RH 5/8 Thread, Fits 1.125" OD, 0.058" Wall, No Shoulder

Rod End Boss RH 5/8 Thread, Fits 1.125" OD, 0.058" Wall, No Shoulder

HRP3202W-RH
$10.00

Rod End Boss LH 5/8 Thread, Fits 1.00" OD, 0.058" Wall

HRP3203W-LH
$9.50

Rod End Boss RH 5/8 Thread, Fits 1.00" OD, 0.058" Wall

HRP3204W-RH
$9.50

Rod End Boss LH 5/8 Thread, Fits 1.125" OD, 0.058" Wall

HRP3205W-LH
$9.50

Rod End Boss RH 5/8 Thread, Fits 1.125" OD, 0.058" Wall

HRP3206W-RH
$9.50
Picture of Rod End Boss LH 7/16 Thread, Fits 0.875" OD, 0.065" Wall

Rod End Boss LH 7/16 Thread, Fits 0.875" OD, 0.065" Wall

HRP3207W-LH
$9.25
Picture of Rod End Boss RH 7/16 Thread, Fits 0.875" OD, 0.065" Wall

Rod End Boss RH 7/16 Thread, Fits 0.875" OD, 0.065" Wall

HRP3208W-RH
$9.25
Picture of Rod End Boss LH 3/4 Thread, Fits 1.50" OD, 0.120" Wall

Rod End Boss LH 3/4 Thread, Fits 1.50" OD, 0.120" Wall

HRP3212W-LH
$11.25
Picture of Rod End Boss RH 3/4 Thread, Fits 1.50" OD, 0.120" Wall

Rod End Boss RH 3/4 Thread, Fits 1.50" OD, 0.120" Wall

HRP3213W-RH
$11.25

Rod End Boss LH 5/8 Thread, Fits 1.00" OD, 0.065" Wall

HRP3214W-LH
$9.25

Rod End Boss RH 5/8 Thread, Fits 1.00" OD, 0.065" Wall

HRP3215W-RH
$9.25
Picture of Boss 0.875" Long 0.385 Thru, Material 0.625" x 0.120" Wall, 4130

Boss 0.875" Long 0.385 Thru, Material 0.625" x 0.120" Wall, 4130

HRP3230
$2.05
Picture of Boss 1.00" Long 0.385 Thru

Boss 1.00" Long 0.385 Thru

HRP3231
$2.05
Picture of Mini King Pin Boss 0.625" Thru

Mini King Pin Boss 0.625" Thru

HRP3244
$11.50
Categories
Popular tags
Contacts
  • (Streeter) 1.262.457.5018
  • (GHI) 1.262.670.9444
  • (HRP) 1.262.457.5015
Information
Products
  • Discover
No warranty. Product, and each part thereof, is sold as is. Racing is a dangerous activity - the user shall determine the suitability and safety of the product for its intended use.
There is no warranty expressed or implied. Glenn Hepfner Inc. / Hepfner Racing Products (HRP) will not be liable for any loss, damage, death or injury arising from the use of these products.
The user assumes all responsibility and risk in connection there within.

Copyright © 2026 Hepfner Racing Products. All rights reserved.