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Bosses-Spacers

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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
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Picture of Boss 1" Long 1/4 X 20, Material 0.50 OD x 0.156, 4130

Boss 1" Long 1/4 X 20, Material 0.50 OD x 0.156, 4130

HRP3404M
$6.75
Picture of Boss 1" Long 1/4 x 28, Material 0.50 OD x 0.156, 4130

Boss 1" Long 1/4 x 28, Material 0.50 OD x 0.156, 4130

HRP3404A
$6.75
Picture of Boss 1" Long 3/16 ID Thru, Material 0.50 OD x 0.156, 4130

Boss 1" Long 3/16 ID Thru, Material 0.50 OD x 0.156, 4130

HRP3404U
$7.00
Picture of Boss 1" Long 3/4 ID Thru, Material 1.00 OD x 0.120, 4130

Boss 1" Long 3/4 ID Thru, Material 1.00 OD x 0.120, 4130

HRP3404YY
$7.00
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 Boss 1" Long 3/8 ID Thru, Material 0.50 OD x 0.065, 4130

Boss 1" Long 3/8 ID Thru, Material 0.50 OD x 0.065, 4130

HRP3404R
$6.75
Picture of Boss 1" Long 3/8 ID Thru, Material 0.625 OD x 0.120, 4130

Boss 1" Long 3/8 ID Thru, Material 0.625 OD x 0.120, 4130

HRP3404W
$7.00
Picture of Boss 1" Long 3/8 X 16, Material 0.625 OD x 0.156, 4130

Boss 1" Long 3/8 X 16, Material 0.625 OD x 0.156, 4130

HRP3404O
$6.75
Picture of Boss 1" Long 3/8 X 24, Material 0.625 OD x 0.156, 4130

Boss 1" Long 3/8 X 24, Material 0.625 OD x 0.156, 4130

HRP3404C
$6.75
Picture of Boss 1" Long 5/16 ID Thru, Material 0.50 OD x 0.095, 4130

Boss 1" Long 5/16 ID Thru, Material 0.50 OD x 0.095, 4130

HRP3404S
$6.75
Picture of Boss 1" Long 5/16 ID Thru, Material 0.625 OD x 0.156, 4130

Boss 1" Long 5/16 ID Thru, Material 0.625 OD x 0.156, 4130

HRP3404X
$7.00
Picture of Boss 1" Long 5/16 X 18, Material 0.625 OD x 0.187, 4130

Boss 1" Long 5/16 X 18, Material 0.625 OD x 0.187, 4130

HRP3404N
$6.75
Picture of Boss 1" Long 5/16 x 24, Material 0.625 OD x 0.187, 4130

Boss 1" Long 5/16 x 24, Material 0.625 OD x 0.187, 4130

HRP3404B
$6.75
Picture of Boss 1" Long 5/8 ID Thru, Material 0.875 OD x 0.120, 4130

Boss 1" Long 5/8 ID Thru, Material 0.875 OD x 0.120, 4130

HRP3404ZZ
$7.20
Picture of Boss 1" Long 7/16 ID Thru, Material 0.625 OD x 0.095, 4130

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

HRP3404V
$7.00
Picture of Boss 1" Long 7/16 ID Thru, Material 0.750 OD x 0.156, 4130

Boss 1" Long 7/16 ID Thru, Material 0.750 OD x 0.156, 4130

HRP3404Z
$7.00
Picture of Boss 1" Long 7/16 X 14, Material 0.750 OD x 0.250, 4130

Boss 1" Long 7/16 X 14, Material 0.750 OD x 0.250, 4130

HRP3404P
$6.75
Picture of Boss 1" Long 7/16 X 20, Material 0.625 OD x 0.120, 4130

Boss 1" Long 7/16 X 20, Material 0.625 OD x 0.120, 4130

HRP3404G
$6.75
Picture of Boss 1" Long 7/16 X 20, Material 0.750 OD x 0.250, 4130

Boss 1" Long 7/16 X 20, Material 0.750 OD x 0.250, 4130

HRP3404D
$6.75
Picture of Boss 1.00" Long 0.385 Thru

Boss 1.00" Long 0.385 Thru

HRP3231
$2.05
Picture of Boss 1.25" Long 5/16-24

Boss 1.25" Long 5/16-24

HRP3291B
$6.65
Picture of Boss 1/2" Long 1/2 ID Thru, Material 0.750 OD x 0.120, 4130

Boss 1/2" Long 1/2 ID Thru, Material 0.750 OD x 0.120, 4130

HRP3400Y
$6.20
Picture of Boss 1/2" Long 1/2 X 13, Material 0.75 OD x 0.156, 4130

Boss 1/2" Long 1/2 X 13, Material 0.75 OD x 0.156, 4130

HRP3400Q
$5.95
Picture of Boss 1/2" Long 1/2 X 20, Material 0.75 OD x 0.156, 4130

Boss 1/2" Long 1/2 X 20, Material 0.75 OD x 0.156, 4130

HRP3400E
$5.95
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 1/2" Long 1/4 X 20, Material 0.50 OD x 0.156, 4130

Boss 1/2" Long 1/4 X 20, Material 0.50 OD x 0.156, 4130

HRP3400M
$5.95
Picture of Boss 1/2" Long 1/4 x 28, Material 0.50 OD x 0.156, 4130

Boss 1/2" Long 1/4 x 28, Material 0.50 OD x 0.156, 4130

HRP3400A
$5.95
Picture of Boss 1/2" Long 3/16 ID Thru, Material 0.50 OD x 0.156, 4130

Boss 1/2" Long 3/16 ID Thru, Material 0.50 OD x 0.156, 4130

HRP3400U
$6.20
Picture of Boss 1/2" Long 3/4 ID Thru, Material 1.00 OD x 0.120, 4130

Boss 1/2" Long 3/4 ID Thru, Material 1.00 OD x 0.120, 4130

HRP3400YY
$6.20
Picture of Boss 1/2" Long 3/8 ID Thru, Material 0.50 OD x 0.065, 4130

Boss 1/2" Long 3/8 ID Thru, Material 0.50 OD x 0.065, 4130

HRP3400R
$5.95
Picture of Boss 1/2" Long 3/8 ID Thru, Material 0.625 OD x 0.120, 4130

Boss 1/2" Long 3/8 ID Thru, Material 0.625 OD x 0.120, 4130

HRP3400W
$6.20
Picture of Boss 1/2" Long 3/8 X 16, Material 0.625 OD x 0.156, 4130

Boss 1/2" Long 3/8 X 16, Material 0.625 OD x 0.156, 4130

HRP3400O
$5.95
Picture of Boss 1/2" Long 3/8 X 24, Material 0.625 OD x 0.156, 4130

Boss 1/2" Long 3/8 X 24, Material 0.625 OD x 0.156, 4130

HRP3400C
$5.95
Picture of Boss 1/2" Long 5/16 ID Thru, Material 0.50 OD x 0.095, 4130

Boss 1/2" Long 5/16 ID Thru, Material 0.50 OD x 0.095, 4130

HRP3400S
$5.95
Picture of Boss 1/2" Long 5/16 ID Thru, Material 0.625 OD x 0.156, 4130

Boss 1/2" Long 5/16 ID Thru, Material 0.625 OD x 0.156, 4130

HRP3400X
$6.20
Picture of Boss 1/2" Long 5/16 X 18, Material 0.625 OD x 0.187, 4130

Boss 1/2" Long 5/16 X 18, Material 0.625 OD x 0.187, 4130

HRP3400N
$5.95
Picture of Boss 1/2" Long 5/16x24, Material 0.625 OD x 0.187, 4130

Boss 1/2" Long 5/16x24, Material 0.625 OD x 0.187, 4130

HRP3400B
$5.95
Picture of Boss 1/2" Long 5/8 ID Thru, Material 0.875 OD x 0.120, 4130

Boss 1/2" Long 5/8 ID Thru, Material 0.875 OD x 0.120, 4130

HRP3400ZZ
$7.25
Picture of Boss 1/2" Long 7/16 ID Thru, Material 0.625 OD x 0.095, 4130

Boss 1/2" Long 7/16 ID Thru, Material 0.625 OD x 0.095, 4130

HRP3400V
$6.20
Picture of Boss 1/2" Long 7/16 ID Thru, Material 0.750 OD x 0.1560, 4130

Boss 1/2" Long 7/16 ID Thru, Material 0.750 OD x 0.1560, 4130

HRP3400Z
$6.20
Picture of Boss 1/2" Long 7/16 X 14, Material 0.750 OD x 0.250, 4130

Boss 1/2" Long 7/16 X 14, Material 0.750 OD x 0.250, 4130

HRP3400P
$5.95
Picture of Boss 1/2" Long 7/16 X 20, Material 0.625 OD x 0.120, 4130

Boss 1/2" Long 7/16 X 20, Material 0.625 OD x 0.120, 4130

HRP3400G
$5.95
Picture of Boss 1/2" Long 7/16 X 20, Material 0.750 OD x 0.250, 4130

Boss 1/2" Long 7/16 X 20, Material 0.750 OD x 0.250, 4130

HRP3400D
$4.30
Picture of Boss 2 1/2" Long 1/2 ID Thru, Material 0.750 OD x 0.120, 4130

Boss 2 1/2" Long 1/2 ID Thru, Material 0.750 OD x 0.120, 4130

HRP3416Y
$10.00
Picture of Boss 2 1/2" Long 1/2 X 13, Material 0.75 OD x 0.156 ,4130

Boss 2 1/2" Long 1/2 X 13, Material 0.75 OD x 0.156 ,4130

HRP3416Q
$9.75
Picture of Boss 2 1/2" Long 1/2 X 20, Material 0.75 OD x 0.156, 4130

Boss 2 1/2" Long 1/2 X 20, Material 0.75 OD x 0.156, 4130

HRP3416E
$9.75
Picture of Boss 2 1/2" Long 1/4 ID Thru, Material 0.50 OD x 0.120, 4130

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

HRP3416T
$10.00
Picture of Boss 2 1/2" Long 1/4 X 20, Material 0.50 OD x 0.156, 4130

Boss 2 1/2" Long 1/4 X 20, Material 0.50 OD x 0.156, 4130

HRP3416M
$9.75
Picture of Boss 2 1/2" Long 1/4 x 28, Material 0.50 OD x 0.156, 4130

Boss 2 1/2" Long 1/4 x 28, Material 0.50 OD x 0.156, 4130

HRP3416A
$9.75
Picture of Boss 2 1/2" Long 3/16 ID Thru, Material 0.50 OD x 0.156, 4130

Boss 2 1/2" Long 3/16 ID Thru, Material 0.50 OD x 0.156, 4130

HRP3416U
$10.00
Picture of Boss 2 1/2" Long 3/4 ID Thru, Material 1.00 OD x 0.120, 4130

Boss 2 1/2" Long 3/4 ID Thru, Material 1.00 OD x 0.120, 4130

HRP3416YY
$10.00
Picture of Boss 2 1/2" Long 3/8 ID Thru, Material 0.50 OD x 0.065, 4130

Boss 2 1/2" Long 3/8 ID Thru, Material 0.50 OD x 0.065, 4130

HRP3416R
$10.00
Picture of Boss 2 1/2" Long 3/8 ID Thru, Material 0.625 OD x 0.120, 4130

Boss 2 1/2" Long 3/8 ID Thru, Material 0.625 OD x 0.120, 4130

HRP3416W
$10.00
Picture of Boss 2 1/2" Long 3/8 X 16, Material 0.625 OD x 0.156, 4130

Boss 2 1/2" Long 3/8 X 16, Material 0.625 OD x 0.156, 4130

HRP3416O
$9.75
Picture of Boss 2 1/2" Long 3/8 X 24, Material 0.625 OD x 0.156, 4130

Boss 2 1/2" Long 3/8 X 24, Material 0.625 OD x 0.156, 4130

HRP3416C
$9.75
Picture of Boss 2 1/2" Long 5/16 ID Thru, Material 0.50 OD x 0.095, 4130

Boss 2 1/2" Long 5/16 ID Thru, Material 0.50 OD x 0.095, 4130

HRP3416S
$9.75
Picture of Boss 2 1/2" Long 5/16 ID Thru, Material 0.625 OD x 0.156, 4130

Boss 2 1/2" Long 5/16 ID Thru, Material 0.625 OD x 0.156, 4130

HRP3416X
$10.00
Picture of Boss 2 1/2" Long 5/16 X 18, Material 0.625 OD x 0.187, 4130

Boss 2 1/2" Long 5/16 X 18, Material 0.625 OD x 0.187, 4130

HRP3416N
$9.75
Picture of Boss 2 1/2" Long 5/16 x 24, Material 0.625 OD x 0.187, 4130

Boss 2 1/2" Long 5/16 x 24, Material 0.625 OD x 0.187, 4130

HRP3416B
$9.75
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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 © 2024 Hepfner Racing Products. All rights reserved.