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Southern Rods & Parts

Jam Nuts

QA1 offers steel jam nuts for industrial markets. Jam nuts are usually half the width of a standard nut and are commonly jammed up against a rod end or linkage tube to lock the two components into place. Available in both inch and metric dimensions.

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Holley EFI LS Spark Plug Wire Set - Cut to Fit Spark Plug - Cut to Fit- Wire set, Red with Gray 135 degree boots designed for GM LS Engines (For OE Coil)
Holley EFI LS Spark Plug Wire Set - Cut to Fit Spark Plug - Cut to Fit- Wire set, Red with Gray 135 degree boots designed for GM LS Engines (For OE Coil)
Part Number: 561-112
$122.95
Holley EFI LS Spark Plug Wire Set - Cut to Fit Black Wire with Black Straight Boots (Plug End) - 135 Degree Coil Boots - Designed for GM LS Engines (For OE Coil)
Holley EFI LS Spark Plug Wire Set - Cut to Fit Black Wire with Black Straight Boots (Plug End) - 135 Degree Coil Boots - Designed for GM LS Engines (For OE Coil)
Part Number: 561-110
$187.95
Spark Plug Wire Set Spark Plug Wire set, Red with Grey 45 degree boots designed for 2010-15 Camaro SS with a 6.2L V8 and shorty headers
Spark Plug Wire Set Spark Plug Wire set, Red with Grey 45 degree boots designed for 2010-15 Camaro SS with a 6.2L V8 and shorty headers
Part Number: 561-102
$149.95
Spark Plug Wire Set Spark Plug Wire set, Black with Black 45 degree boots designed for 2010-15 Camaro SS with a 6.2L V8 and shorty headers
Spark Plug Wire Set Spark Plug Wire set, Black with Black 45 degree boots designed for 2010-15 Camaro SS with a 6.2L V8 and shorty headers
Part Number: 561-100
$158.95
Ford Coyote Ti-VCT Harness Kit
Ford Coyote Ti-VCT Harness Kit
Part Number: 558-510
$1,799.95
Universal Ford V-8 Harness Kit Universal Ford V8, Bosch Injector
Universal Ford V-8 Harness Kit Universal Ford V8, Bosch Injector
Part Number: 558-508
$432.95
Ford Modular 2 Valve EFI Harness Kit 1999-2004 Ford Modular 2 Valve Harness Kit
Ford Modular 2 Valve EFI Harness Kit 1999-2004 Ford Modular 2 Valve Harness Kit
Part Number: 558-505
$1,499.95
Universal V8 MPFI EFI HARNESS KIT Universal V8 MPFI
Universal V8 MPFI EFI HARNESS KIT Universal V8 MPFI
Part Number: 558-504
$849.95
GM TPI and Stealth Ram EFI HARNESS KIT GM TPI and Holley Stealth Ram?
GM TPI and Stealth Ram EFI HARNESS KIT GM TPI and Holley Stealth Ram?
Part Number: 558-503
$849.95
GM LS 58X EFI HARNESS KIT GM LS2/LS3/LS7, 58X Crank Sensor, Bosch Injector
GM LS 58X EFI HARNESS KIT GM LS2/LS3/LS7, 58X Crank Sensor, Bosch Injector
Part Number: 558-502
$949.95
GM 58X EFI HARNESS KIT GM LS2/LS3/LS7, 58X Crank Sensor, USCAR/ EV6 Injector
GM 58X EFI HARNESS KIT GM LS2/LS3/LS7, 58X Crank Sensor, USCAR/ EV6 Injector
Part Number: 558-501
$899.95
GM LS 24X EFI HARNESS KIT GM LS1/6, 24X Crank Sensor, Bosch Injector
GM LS 24X EFI HARNESS KIT GM LS1/6, 24X Crank Sensor, Bosch Injector
Part Number: 558-500
$999.95
Holley EFI Terminator X Max Transmission Kit - GM 6L80/90 Requires Terminator X - Requires V3 Build 100 or later
Holley EFI Terminator X Max Transmission Kit - GM 6L80/90 Requires Terminator X - Requires V3 Build 100 or later
Part Number: 558-499
$573.95
Sniper 2 EFI CAN to USB-A Cable Communication cable for real time tuning
Sniper 2 EFI CAN to USB-A Cable Communication cable for real time tuning
Part Number: 558-495
$80.49
Sniper 1 to Sniper 2 EFI Adapter Harness Eliminates the need to rewire your existing Sniper EFI installation
Sniper 1 to Sniper 2 EFI Adapter Harness Eliminates the need to rewire your existing Sniper EFI installation
Part Number: 558-489
$56.09
Pro Dash M8 Service Harness M8 Service Harness 6.86" and 12.3" Pro Dash
Pro Dash M8 Service Harness M8 Service Harness 6.86" and 12.3" Pro Dash
Part Number: 558-486
$134.95
Sniper 2 EFI M8 Extension Harness - 8-Foot Length Compatible with Sniper 2 EFI M8 Accessories
Sniper 2 EFI M8 Extension Harness - 8-Foot Length Compatible with Sniper 2 EFI M8 Accessories
Part Number: 558-485
$44.85
M8 Extension - 4ft M8 Extension Harness for Sniper 2 - 4ft
M8 Extension - 4ft M8 Extension Harness for Sniper 2 - 4ft
Part Number: 558-484
$39.24
Holley EFI Transmission Harness - TKO Terminator X Max ECUs on V3 Build 100 or later - Holley EFI V6 Build 300 or later
Holley EFI Transmission Harness - TKO Terminator X Max ECUs on V3 Build 100 or later - Holley EFI V6 Build 300 or later
Part Number: 558-482
$228.95
Holley EFI Transmission Harness - T-56 Terminator X Max ECUs on V3 Build 100 or later - Holley EFI V6 Build 300 or later
Holley EFI Transmission Harness - T-56 Terminator X Max ECUs on V3 Build 100 or later - Holley EFI V6 Build 300 or later
Part Number: 558-481
$228.95
Holley EFI Transmission Harness - T-56 Magnum Terminator X Max ECUs on V3 Build 100 or later - Holley EFI V6 Build 300 or later
Holley EFI Transmission Harness - T-56 Magnum Terminator X Max ECUs on V3 Build 100 or later - Holley EFI V6 Build 300 or later
Part Number: 558-480
$228.95
GM PWM Alternator Harness For use with 2007+ PWM GM Alternators.
GM PWM Alternator Harness For use with 2007+ PWM GM Alternators.
Part Number: 558-475
$86.95
Holley EFI Ford Crank Sensor Module - Ford 7.3L Godzilla HP, Dominator, and Terminator X ECU's
Holley EFI Ford Crank Sensor Module - Ford 7.3L Godzilla HP, Dominator, and Terminator X ECU's
Part Number: 558-474
$43.12
Holley EFI Transmission Control Harness - Chrysler 46RE Fits 1996-2003 Transmissions - Use with Terminator X Max only
Holley EFI Transmission Control Harness - Chrysler 46RE Fits 1996-2003 Transmissions - Use with Terminator X Max only
Part Number: 558-473
$275.95
1992-1997 Ford AODE/4R70W Transmission Control Harness Plug and play Transmission Harness for 1992-1997 Ford AODE/4R70W
1992-1997 Ford AODE/4R70W Transmission Control Harness Plug and play Transmission Harness for 1992-1997 Ford AODE/4R70W
Part Number: 558-471
$292.95
Ford 4R70W/4R75W Transmission Control Harness Ford 4R70W/4R75W Transmission Control Harness (98+)
Ford 4R70W/4R75W Transmission Control Harness Ford 4R70W/4R75W Transmission Control Harness (98+)
Part Number: 558-470
$269.95
2018-2022 Ford DBW Harness Throttle Body - JL3E-9F991-AA - Throttle Pedal - BR3Z-9F836-D
2018-2022 Ford DBW Harness Throttle Body - JL3E-9F991-AA - Throttle Pedal - BR3Z-9F836-D
Part Number: 558-469
$209.95
Holley EFI Terminator X DBW Harness - GM GEN V LTX For LTx Throttle Bodies and Terminator X and X Max ECUs
Holley EFI Terminator X DBW Harness - GM GEN V LTX For LTx Throttle Bodies and Terminator X and X Max ECUs
Part Number: 558-468
$283.95
Delphi M/P 150 to GT (Stainless Steel) MAP Adapter Harness Retains your factory harness connector
Delphi M/P 150 to GT (Stainless Steel) MAP Adapter Harness Retains your factory harness connector
Part Number: 558-467
$19.80
Weatherpak to GT (Stainless Steel) MAP Adapter Harness Retains your factory harness connector
Weatherpak to GT (Stainless Steel) MAP Adapter Harness Retains your factory harness connector
Part Number: 558-466
$46.09
Holley EFI CAN Splitter Sniper EFI or Terminator X
Holley EFI CAN Splitter Sniper EFI or Terminator X
Part Number: 558-465
$45.98
Holley EFI Terminator X Wideband Adapter Harness Compatible w/ Terminator X and X Max ECUs
Holley EFI Terminator X Wideband Adapter Harness Compatible w/ Terminator X and X Max ECUs
Part Number: 558-463
$62.55
Holley Wiring Harnesses 558-462 Wiring Harnesses. Holley EFI, Replacement, Input/Output Harness, Terminator EFI Systems, Pre-Terminated, Plug-and-Play, Each
Holley Wiring Harnesses 558-462 Wiring Harnesses. Holley EFI, Replacement, Input/Output Harness, Terminator EFI Systems, Pre-Terminated, Plug-and-Play, Each
Part Number: 558-462
$39.49
Holley EFI Ford GT500 and 3V Drive-by-Wire Throttle Body Harness 2005-2010 Ford Mustang GT and GT500 Models
Holley EFI Ford GT500 and 3V Drive-by-Wire Throttle Body Harness 2005-2010 Ford Mustang GT and GT500 Models
Part Number: 558-461
$474.95
Terminator Stealth 2x4 Primary Throttle Body Sub Harness Replacement harness
Terminator Stealth 2x4 Primary Throttle Body Sub Harness Replacement harness
Part Number: 558-459
$231.95
Pro Dash Standalone Service Harness This is the harness included with standalone pro dashes.
Pro Dash Standalone Service Harness This is the harness included with standalone pro dashes.
Part Number: 558-457
$349.95
Pro Dash Input/Output Harness Unterminated input/output wiring
Pro Dash Input/Output Harness Unterminated input/output wiring
Part Number: 558-456
$276.95
2009+ GM 4L60E Transmission Control Harness Plug and Play with Dominator ECU
2009+ GM 4L60E Transmission Control Harness Plug and Play with Dominator ECU
Part Number: 558-455
$280.95
CAN Adapter Harness, 12' 12' Male to Female CAN Adapter Harness
CAN Adapter Harness, 12' 12' Male to Female CAN Adapter Harness
Part Number: 558-454
$92.19
CAN Adapter Harness, 8' 8' Male to Female CAN Adapter Harness
CAN Adapter Harness, 8' 8' Male to Female CAN Adapter Harness
Part Number: 558-453
$65.85
CAN Adapter Harness, 4' 4' Male to Female CAN Adapter Harness
CAN Adapter Harness, 4' 4' Male to Female CAN Adapter Harness
Part Number: 558-452
$52.69
558-451 CAN Adapter Harness, 12" 12" Male to Female CAN Adapter Harness
558-451 CAN Adapter Harness, 12" 12" Male to Female CAN Adapter Harness
Part Number: 558-451
$43.73
Holley EFI Chrysler HEMI Drive-By-Wire Dual Throttle Body Harness HEMI DUAL DBW HARNESS, 2013+ APPLICATION
Holley EFI Chrysler HEMI Drive-By-Wire Dual Throttle Body Harness HEMI DUAL DBW HARNESS, 2013+ APPLICATION
Part Number: 558-450
$368.95
J1A/J1B ECU Connector Kit J1A/J1B ECU Connector Kit with Pins and Seals
J1A/J1B ECU Connector Kit J1A/J1B ECU Connector Kit with Pins and Seals
Part Number: 558-448
$112.95
Pro Dash Service Harness Replacement Harness
Pro Dash Service Harness Replacement Harness
Part Number: 558-446
$149.95
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