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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 5/8" Long 3/4 ID Thru, Material 1.00 OD x 0.120, 4130

Boss 5/8" Long 3/4 ID Thru, Material 1.00 OD x 0.120, 4130

HRP3401YY
$6.35
Picture of Boss 5/8" Long 3/8 ID Thru, Material 0.50 OD x 0.065, 4130

Boss 5/8" Long 3/8 ID Thru, Material 0.50 OD x 0.065, 4130

HRP3401R
$6.10
Picture of Boss 5/8" Long 3/8 ID Thru, Material 0.625 OD x 0.120, 4130

Boss 5/8" Long 3/8 ID Thru, Material 0.625 OD x 0.120, 4130

HRP3401W
$6.35
Picture of Boss 5/8" Long 3/8 X 16, Material 0.625 OD x 0.156, 4130

Boss 5/8" Long 3/8 X 16, Material 0.625 OD x 0.156, 4130

HRP3401O
$6.10
Picture of Boss 5/8" Long 3/8 X 24, Material 0.625 OD x 0.156, 4130

Boss 5/8" Long 3/8 X 24, Material 0.625 OD x 0.156, 4130

HRP3401C
$6.10
Picture of Boss 5/8" Long 5/16 ID Thru, Material 0.50 OD x 0.095, 4130

Boss 5/8" Long 5/16 ID Thru, Material 0.50 OD x 0.095, 4130

HRP3401S
$6.10
Picture of Boss 5/8" Long 5/16 ID Thru, Material 0.625 OD x 0.156, 4130

Boss 5/8" Long 5/16 ID Thru, Material 0.625 OD x 0.156, 4130

HRP3401X
$6.35
Picture of Boss 5/8" Long 5/16 X 18, Material 0.625 OD x 0.187, 4130

Boss 5/8" Long 5/16 X 18, Material 0.625 OD x 0.187, 4130

HRP3401N
$6.10
Picture of Boss 5/8" Long 5/16 x 24, Material 0.625 OD x 0.187, 4130

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

HRP3401B
$6.10
Picture of Boss 5/8" Long 5/8 ID Thru, Material 0.875 OD x 0.120, 4130

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

HRP3401ZZ
$7.40
Picture of Boss 5/8" Long 7/16 ID Thru, Material 0.625 OD x 0.095, 4130

Boss 5/8" Long 7/16 ID Thru, Material 0.625 OD x 0.095, 4130

HRP3401V
$6.35
Picture of Boss 5/8" Long 7/16 ID Thru, Material 0.750 OD x 0.156, 4130

Boss 5/8" Long 7/16 ID Thru, Material 0.750 OD x 0.156, 4130

HRP3401Z
$6.35
Picture of Boss 5/8" Long 7/16 X 14, Material 0.750 OD x 0.250, 4130

Boss 5/8" Long 7/16 X 14, Material 0.750 OD x 0.250, 4130

HRP3401P
$6.10
Picture of Boss 5/8" Long 7/16 X 20, Material 0.750 OD x 0.250, 4130

Boss 5/8" Long 7/16 X 20, Material 0.750 OD x 0.250, 4130

HRP3401D
$4.35
Picture of Boss 5/8" Long 7/16 X 20, Material 00.625 OD x 0.120, 4130

Boss 5/8" Long 7/16 X 20, Material 00.625 OD x 0.120, 4130

HRP3401G
$6.10
Picture of Boss 7/8" Long 1/2 ID Thru, Material 0.750 OD x 0.120, 4130

Boss 7/8" Long 1/2 ID Thru, Material 0.750 OD x 0.120, 4130

HRP3403Y
$6.75
Picture of Boss 7/8" Long 1/2 X 13, Material 0.75 OD x 0.156, 4130

Boss 7/8" Long 1/2 X 13, Material 0.75 OD x 0.156, 4130

HRP3403Q
$6.50
Picture of Boss 7/8" Long 1/2 X 20, Material 0.75 OD x 0.156, 4130

Boss 7/8" Long 1/2 X 20, Material 0.75 OD x 0.156, 4130

HRP3403E
$6.50
Picture of Boss 7/8" Long 1/4 ID Thru, Material 0.50 OD x0.120, 4130

Boss 7/8" Long 1/4 ID Thru, Material 0.50 OD x0.120, 4130

HRP3403T
$6.75
Picture of Boss 7/8" Long 1/4 X 20, Material 0.50 OD x 0.156, 4130

Boss 7/8" Long 1/4 X 20, Material 0.50 OD x 0.156, 4130

HRP3403M
$6.50
Picture of Boss 7/8" Long 1/4 x 28, Material 0.50 OD x 0.156, 4130

Boss 7/8" Long 1/4 x 28, Material 0.50 OD x 0.156, 4130

HRP3403A
$6.50
Picture of Boss 7/8" Long 3/16 ID Thru, Material 0.50 OD x 0.156, 4130

Boss 7/8" Long 3/16 ID Thru, Material 0.50 OD x 0.156, 4130

HRP3403U
$6.75
Picture of Boss 7/8" Long 3/4 ID Thru, Material 1.00 OD x 0.120, 4130

Boss 7/8" Long 3/4 ID Thru, Material 1.00 OD x 0.120, 4130

HRP3403YY
$6.75
Picture of Boss 7/8" Long 3/8 ID Thru, Material 0.50 OD x 0.065, 4130

Boss 7/8" Long 3/8 ID Thru, Material 0.50 OD x 0.065, 4130

HRP3403R
$6.50
Picture of Boss 7/8" Long 3/8 ID Thru, Material 0.625 OD x 0.120, 4130

Boss 7/8" Long 3/8 ID Thru, Material 0.625 OD x 0.120, 4130

HRP3403W
$6.75
Picture of Boss 7/8" Long 3/8 X 16, Material 0.625 OD x 0.156, 4130

Boss 7/8" Long 3/8 X 16, Material 0.625 OD x 0.156, 4130

HRP3403O
$6.50
Picture of Boss 7/8" Long 3/8 X 24, Material 0.625 OD x 0.156, 4130

Boss 7/8" Long 3/8 X 24, Material 0.625 OD x 0.156, 4130

HRP3403C
$6.50
Picture of Boss 7/8" Long 5/16 ID Thru, Material 0.50 OD x 0.095, 4130

Boss 7/8" Long 5/16 ID Thru, Material 0.50 OD x 0.095, 4130

HRP3403S
$6.50
Picture of Boss 7/8" Long 5/16 ID Thru, Material 0.625 OD x 0.156, 4130

Boss 7/8" Long 5/16 ID Thru, Material 0.625 OD x 0.156, 4130

HRP3403X
$6.75
Picture of Boss 7/8" Long 5/16 X 18, Material 0.625 OD x 0.187, 4130

Boss 7/8" Long 5/16 X 18, Material 0.625 OD x 0.187, 4130

HRP3403N
$6.50
Picture of Boss 7/8" Long 5/16 x 24, Material 0.625 OD x 0.187, 4130

Boss 7/8" Long 5/16 x 24, Material 0.625 OD x 0.187, 4130

HRP3403B
$6.50
Picture of Boss 7/8" Long 5/8 ID Thru, Material 0.875 OD x 0.120, 4130

Boss 7/8" Long 5/8 ID Thru, Material 0.875 OD x 0.120, 4130

HRP3403ZZ
$6.90
Picture of Boss 7/8" Long 7/16 ID Thru, Material 0.625 OD x 0.095, 4130

Boss 7/8" Long 7/16 ID Thru, Material 0.625 OD x 0.095, 4130

HRP3403V
$6.75
Picture of Boss 7/8" Long 7/16 ID Thru, Material 0.750 OD x 0.1560, 4130

Boss 7/8" Long 7/16 ID Thru, Material 0.750 OD x 0.1560, 4130

HRP3403Z
$6.75
Picture of Boss 7/8" Long 7/16 X 14, Material 0.750 OD x 0.250, 4130

Boss 7/8" Long 7/16 X 14, Material 0.750 OD x 0.250, 4130

HRP3403P
$6.50
Picture of Boss 7/8" Long 7/16 X 20, Material 0.625 OD x 0.120, 4130

Boss 7/8" Long 7/16 X 20, Material 0.625 OD x 0.120, 4130

HRP3403G
$6.50
Picture of Boss 7/8" Long 7/16 X 20, Material 0.750 OD x 0.250, 4130

Boss 7/8" Long 7/16 X 20, Material 0.750 OD x 0.250, 4130

HRP3403D
$6.50
Picture of Brake Pedal Boss 0.320" Thru

Brake Pedal Boss 0.320" Thru

HRP3274
$5.50
Picture of Brake Pedal Spud Titanium, 0.625" OD x 0.312" ID, 1.375" Long

Brake Pedal Spud Titanium, 0.625" OD x 0.312" ID, 1.375" Long

HRP3374
$15.50
Picture of Brake Pedal Spud Titanium, 0.625" OD x 0.375 ID, 1.00 Long

Brake Pedal Spud Titanium, 0.625" OD x 0.375 ID, 1.00 Long

HRP3377
$13.50
Picture of Front Axle Shock Boss 1.06" Long

Front Axle Shock Boss 1.06" Long

HRP3245
$12.50
Picture of Front Axle Shock Boss 1.56" Long

Front Axle Shock Boss 1.56" Long

HRP3245-S
$15.00
Picture of Gas Pedal Spud Titanium, 0.500" OD x 0.312" ID, 0.875" Long

Gas Pedal Spud Titanium, 0.500" OD x 0.312" ID, 0.875" Long

HRP3361
$12.50
Picture of Jacobs Ladder Tube Titanium, 0.625" OD x 0.375" ID, 0.875" Long

Jacobs Ladder Tube Titanium, 0.625" OD x 0.375" ID, 0.875" Long

HRP3375
$12.50
Picture of King Pin Boss, Midget, 4130, 1.25" OD x 0.250" Wall

King Pin Boss, Midget, 4130, 1.25" OD x 0.250" Wall

HRP3000W-M
$18.00
Picture of King Pin Boss, Sprint Car, 4130, 1.25" OD x 0.250" Wall

King Pin Boss, Sprint Car, 4130, 1.25" OD x 0.250" Wall

HRP3000W-125
$20.75
Picture of King Pin Boss, Sprint Car, 4130, 1.50" OD x 0.375" Wall

King Pin Boss, Sprint Car, 4130, 1.50" OD x 0.375" Wall

HRP3000W-150
$27.50
Picture of Mini King Pin Boss 0.625" Thru

Mini King Pin Boss 0.625" Thru

HRP3244
$11.50
Picture of Mini King Pin Boss, 1.00" OD, 4130

Mini King Pin Boss, 1.00" OD, 4130

HRP3250
$13.00
Picture of Panhard Bar Spud

Panhard Bar Spud

HRP3249
$12.75
Picture of Panhard Bar Spud (No Radius), 1.00" OD, 4130

Panhard Bar Spud (No Radius), 1.00" OD, 4130

HRP3249S
$13.00
Picture of Pinch Tube 0.50" Long 0.321" Thru

Pinch Tube 0.50" Long 0.321" Thru

HRP3270
$4.25
Picture of Pinch Tube 1.18" Long 0.321" Thru

Pinch Tube 1.18" Long 0.321" Thru

HRP3273
$3.50
Picture of Pinch Tube 1.38" Long 0.321" Thru

Pinch Tube 1.38" Long 0.321" Thru

HRP3272
$3.50
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 LH 3/4" Thread, Fits 1.25" OD, 0.083 Wall

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

HRP3216W-LH
$9.75
Picture of Rod End Boss LH 5/8 Thread

Rod End Boss LH 5/8 Thread

HRP3218W-LH
$9.75
Picture of Rod End Boss LH 5/8 Thread, Fits 1.00" OD, 0.058" Wall

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

HRP3203W-LH
$9.50
Picture of Rod End Boss LH 5/8 Thread, Fits 1.00" OD, 0.065" Wall

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

HRP3214W-LH
$9.25
Picture of Rod End Boss LH 5/8 Thread, Fits 1.125" OD, 0.058" Wall

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

HRP3205W-LH
$9.50
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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.