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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 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 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 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
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 Shock Boss Spud Style, 0.750" OD 1018

Shock Boss Spud Style, 0.750" OD 1018

HRP3246
$11.00
Picture of Wing Tree Stud, 0.625" OD 1018

Wing Tree Stud, 0.625" OD 1018

HRP3247
$8.50
Picture of Wing Tree Stud Titanium, 0.625" OD Titanium

Wing Tree Stud Titanium, 0.625" OD Titanium

HRP3247-TIT
$22.50
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 Mini King Pin Boss, 1.00" OD, 4130

Mini King Pin Boss, 1.00" OD, 4130

HRP3250
$13.00
Picture of Super Light Weight King Pin Boss, 1.25" OD, 4130

Super Light Weight King Pin Boss, 1.25" OD, 4130

HRP3252
$25.90
Picture of Boss 0.375" Long 0.385" Thru, Material 0.625" OD x 0.120" Wall, 4130

Boss 0.375" Long 0.385" Thru, Material 0.625" OD x 0.120" Wall, 4130

HRP3269
$4.25
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 1.38" Long 0.321" Thru

Pinch Tube 1.38" Long 0.321" Thru

HRP3272
$3.50
Picture of Pinch Tube 1.18" Long 0.321" Thru

Pinch Tube 1.18" Long 0.321" Thru

HRP3273
$3.50
Picture of Brake Pedal Boss 0.320" Thru

Brake Pedal Boss 0.320" Thru

HRP3274
$5.50
Picture of Boss 1.25" Long 5/16-24

Boss 1.25" Long 5/16-24

HRP3291B
$6.65
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 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 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 Wing Tree Tube Titanium, 0.625" OD x 0.375" ID, 0.375" Long

Wing Tree Tube Titanium, 0.625" OD x 0.375" ID, 0.375" Long

HRP3376
$12.50
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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 5/8" Long 1/4 x 28, Material 0.50 OD x 0.156, 4130

Boss 5/8" Long 1/4 x 28, Material 0.50 OD x 0.156, 4130

HRP3401A
$6.10
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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.

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