Holley Terminator EFI Wiring Harness

Compare price from $35.49 ~ $74.17

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Sort by Lowest Price	Item price	Delivery
MVP Motorsports Holley 558-420 Terminator EFI Wiring Harness	$35.49	Delivery by Thu, Dec 7 Spend $200 for free delivery

Modern Day Muffler Holley 558-420 Terminator EFI Wiring Harness	$35.96	$8.99 delivery by Mon, Nov 27 30-day returns

Modern Day Muffler Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$43.49	Delivery date & cost shown at checkout

Fastermotorsports Holley 558-420 Terminator EFI Wiring Harness	$35.96	Delivery by Fri, Nov 17 Spend $99 for free delivery 7-day returns

RaceChoice Holley 558-420 Terminator EFI Wiring Harness	$36.95	Free delivery by Mon, Nov 20 30-day returns

Milky Motorsports Holley 558-420 Terminator EFI Wiring Harness	$39.43	Delivery by Mon, Jun 17 Spend $100 for free delivery 30-day returns

Turbo Nasty Holley 558-420 Terminator EFI Wiring Harness	$39.95	$12.00 delivery 3-day returns

Salter Racing Holley 558-420 Terminator EFI Wiring Harness	$39.95	$10.99 delivery by Fri, Nov 17 30-day returns

Salter Racing Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$43.49	Delivery date & cost shown at checkout

MAD Racing Parts Holley EFI Wire Harness Kit 558-420	$40.95	Delivery date & cost shown at checkout

MAD Racing Parts Holley Terminator EFI Wiring Harness	$43.49	Delivery date & cost shown at checkout

Prospeedshop Holley 558-420 Terminator EFI Wiring Harness	$40.95	Delivery by Fri, Jun 14 Spend $140 for free delivery 30-day returns

Winners Circle Holley EFI Wire Harness Kit 558-420	$40.95	$11.99 delivery Jun 12 – 1430-day returns Free $100+

Winners Circle Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$43.49	Delivery date & cost shown at checkout

Jessie's Performance Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$40.95	Delivery date & cost shown at checkout

eBay Holley 558-420 Terminator EFI Wiring Harness	$40.95	Delivery date & cost shown at checkout

eBay Holley EFI Wire Harness Kit 558-420	$40.95	Delivery date & cost shown at checkout

eBay Holley EFI Wire Harness Kit 558-420	$40.95	$11.95 delivery by Jun 2030-day returns

eBay Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$43.49	Delivery date & cost shown at checkout

eBay Holley 558-420 Terminator EFI In/Out Kit	$48.32	Delivery date & cost shown at checkout

eBay Holley Terminator EFI Input / Output Kit 558-420	$49.06	Delivery date & cost shown at checkout

eBay Holley Terminator EFI Wiring Harness	$49.06	Delivery date & cost shown at checkout

eBay Engine Control Module (ECM) Wiring Harness	$49.63	$11.99 delivery by Wed, Dec 11

eBay Holley 558-420Wiring Harness Input/Output for Terminator	$60.49	Delivery date & cost shown at checkout

eBay HOLLEY Wire Harness Kit - EFI Terminator I/O P/N - 558-420	$60.49	Delivery date & cost shown at checkout

eBay Wire Harness Kit - EFI Terminator I/O	$62.02	Free delivery by Tue, Dec 17

eBay Holley EFI Wire Harness Kit 558-420	$62.59	Delivery date & cost shown at checkout

eBay Holley 558-420, Wire Harness Kit - Efi Terminator I/O Performance Racing Parts	$71.45	Delivery date & cost shown at checkout

eBay Holley EFI 558-420	$73.36	Delivery date & cost shown at checkout

eBay Engine Control Module/ECU/ECM<wbr/>/PCM Wiring Harness Holley 558-420	$74.17	Delivery date & cost shown at checkout

West Bend Dyno Tuning Terminator EFI Input/Output Kit - 558-420	$40.95	Delivery date & cost shown at checkout

West Bend Dyno Tuning Terminator EFI Input/Output Kit - 558-420	$40.95	Delivery date & cost shown at checkout

Pitstopusa Holley 558-420 Terminator EFI Wiring Harness	$40.95	Delivery by Thu, May 9 Spend $149 for free delivery 30-day returns

Pitstopusa Holley 558-420 Terminator EFI Wiring Harness	$40.95	Delivery by Thu, Jun 20 Spend $149 for free delivery 30-day returns

Pitstopusa Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$43.49	Delivery date & cost shown at checkout

90racing Holley EFI Wire Harness Kit 558-420	$42.99	$9.90 delivery Jun 12 – 1730-day returns Free $90+

90racing Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$47.84	Delivery date & cost shown at checkout

Amazon Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$43.49	Delivery date & cost shown at checkout

RaceHard Wire Harness Kit - EFI Terminator I/O	$43.49	$11.99 delivery by Mon, Dec 9

Behrents Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$43.49	Delivery date & cost shown at checkout

3C Truck Supply Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$43.49	Delivery date & cost shown at checkout

Walmart Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$43.49	Delivery date & cost shown at checkout

Holley Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$43.49	Delivery date & cost shown at checkout

515i Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$43.49	Delivery by Mon, Dec 16 Spend $199 for free delivery

Car Shop Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$43.49	Delivery date & cost shown at checkout

Summit Racing Equipment Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$43.49	Delivery date & cost shown at checkout

Speedway Motors Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$43.49	Delivery date & cost shown at checkout

Berry Performance Sales Terminator EFI Input/Output Kit 558-420	$43.49	Delivery date & cost shown at checkout

First Place Auto Parts Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$43.49	Delivery date & cost shown at checkout

A-1 Racing Products Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$43.49	Delivery date & cost shown at checkout

JEGS High Performance Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$43.49	Delivery date & cost shown at checkout

Pace Performance Holley Terminator EFI Wiring Harness	$43.49	Delivery date & cost shown at checkout

AutoZone Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$43.64	Delivery date & cost shown at checkout

Sport Compact Warehouse Holley Terminator EFI Wiring Harness	$44.57	$10 delivery Dec 9 – 1290-day returns10% off Fall into Winter Sale 2024 Copy code pmax10Copied Free $150.01+

Sport Compact Warehouse Holley Terminator EFI Wiring Harness	$44.57	$10 delivery Dec 9 – 1290-day returns10% off Fall into Winter Sale 2024 Copy code pmax10Copied Free $150.01+

Go Turbo Armageddon Holley Terminator EFI Wiring Harness	$44.99	Free delivery Dec 11 – 1630-day returnsSave 6% off orders over $200 for Black Friday! Copy code blackfridayCopied

Go Turbo Armageddon Holley Terminator EFI Wiring Harness	$44.99	Free delivery Dec 11 – 1630-day returnsSave 6% off orders over $200 for Black Friday! Copy code blackfridayCopied

EFI System Pro Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$48.32	Delivery date & cost shown at checkout

Fidanza Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$48.32	Delivery date & cost shown at checkout Save 6% on orders over $200!. Apply holiday

Lethal Performance Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$48.32	Delivery date & cost shown at checkout

Amco Auto Parts Wire Harness Kit - EFI Terminator I/O HOLLEY 558-420	$48.46	Delivery date & cost shown at checkout

CSPracing Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$56.99	Free delivery by Wed, Dec 11

CSPracing Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$65.99	Delivery date & cost shown at checkout

LMPerformance Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$61.22	Delivery date & cost shown at checkout

AutomotiveStuff com Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$61.41	Delivery date & cost shown at checkout

Tuner Store Holley 558-420 - Wire Harness Kit - EFI Terminator I/O	$65.66	Delivery date & cost shown at checkout

35.49
MVP Motorsports
Holley 558-420 Terminator EFI Wiring Harness
Delivery by Thu, Dec 7 Spend $200 for free delivery
35.96
Modern Day Muffler
Holley 558-420 Terminator EFI Wiring Harness
$8.99 delivery by Mon, Nov 27 30-day returns
43.49
Modern Day Muffler
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
35.96
Fastermotorsports
Holley 558-420 Terminator EFI Wiring Harness
Delivery by Fri, Nov 17 Spend $99 for free delivery 7-day returns
36.95
RaceChoice
Holley 558-420 Terminator EFI Wiring Harness
Free delivery by Mon, Nov 20 30-day returns
39.43
Milky Motorsports
Holley 558-420 Terminator EFI Wiring Harness
Delivery by Mon, Jun 17 Spend $100 for free delivery 30-day returns
39.95
Turbo Nasty
Holley 558-420 Terminator EFI Wiring Harness
$12.00 delivery 3-day returns
39.95
Salter Racing
Holley 558-420 Terminator EFI Wiring Harness
$10.99 delivery by Fri, Nov 17 30-day returns
43.49
Salter Racing
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
40.95
MAD Racing Parts
Holley EFI Wire Harness Kit 558-420
Delivery date & cost shown at checkout
43.49
MAD Racing Parts
Holley Terminator EFI Wiring Harness
Delivery date & cost shown at checkout
40.95
Prospeedshop
Holley 558-420 Terminator EFI Wiring Harness
Delivery by Fri, Jun 14 Spend $140 for free delivery 30-day returns
40.95
Winners Circle
Holley EFI Wire Harness Kit 558-420
$11.99 delivery Jun 12 – 1430-day returns Free $100+
43.49
Winners Circle
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
40.95
Jessie's Performance
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
40.95
eBay
Holley 558-420 Terminator EFI Wiring Harness
Delivery date & cost shown at checkout
40.95
eBay
Holley EFI Wire Harness Kit 558-420
Delivery date & cost shown at checkout
40.95
eBay
Holley EFI Wire Harness Kit 558-420
$11.95 delivery by Jun 2030-day returns
43.49
eBay
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
48.32
eBay
Holley 558-420 Terminator EFI In/Out Kit
Delivery date & cost shown at checkout
49.06
eBay
Holley Terminator EFI Input / Output Kit 558-420
Delivery date & cost shown at checkout
49.06
eBay
Holley Terminator EFI Wiring Harness
Delivery date & cost shown at checkout
49.63
eBay
Engine Control Module (ECM) Wiring Harness
$11.99 delivery by Wed, Dec 11
60.49
eBay
Holley 558-420Wiring Harness Input/Output for Terminator
Delivery date & cost shown at checkout
60.49
eBay
HOLLEY Wire Harness Kit - EFI Terminator I/O P/N - 558-420
Delivery date & cost shown at checkout
62.02
eBay
Wire Harness Kit - EFI Terminator I/O
Free delivery by Tue, Dec 17
62.59
eBay
Holley EFI Wire Harness Kit 558-420
Delivery date & cost shown at checkout
71.45
eBay
Holley 558-420, Wire Harness Kit - Efi Terminator I/O Performance Racing Parts
Delivery date & cost shown at checkout
73.36
eBay
Holley EFI 558-420
Delivery date & cost shown at checkout
74.17
eBay
Engine Control Module/ECU/ECM/PCM Wiring Harness Holley 558-420
Delivery date & cost shown at checkout
40.95
West Bend Dyno Tuning
Terminator EFI Input/Output Kit - 558-420
Delivery date & cost shown at checkout
40.95
West Bend Dyno Tuning
Terminator EFI Input/Output Kit - 558-420
Delivery date & cost shown at checkout
40.95
Pitstopusa
Holley 558-420 Terminator EFI Wiring Harness
Delivery by Thu, May 9 Spend $149 for free delivery 30-day returns
40.95
Pitstopusa
Holley 558-420 Terminator EFI Wiring Harness
Delivery by Thu, Jun 20 Spend $149 for free delivery 30-day returns
43.49
Pitstopusa
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
42.99
90racing
Holley EFI Wire Harness Kit 558-420
$9.90 delivery Jun 12 – 1730-day returns Free $90+
47.84
90racing
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
43.49
Amazon
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
43.49
RaceHard
Wire Harness Kit - EFI Terminator I/O
$11.99 delivery by Mon, Dec 9
43.49
Behrents
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
43.49
3C Truck Supply
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
43.49
Walmart
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
43.49
Holley
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
43.49
515i
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery by Mon, Dec 16 Spend $199 for free delivery
43.49
Car Shop
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
43.49
Summit Racing Equipment
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
43.49
Speedway Motors
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
43.49
Berry Performance Sales
Terminator EFI Input/Output Kit 558-420
Delivery date & cost shown at checkout
43.49
First Place Auto Parts
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
43.49
A-1 Racing Products
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
43.49
JEGS High Performance
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
43.49
Pace Performance
Holley Terminator EFI Wiring Harness
Delivery date & cost shown at checkout
43.64
AutoZone
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
44.57
Sport Compact Warehouse
Holley Terminator EFI Wiring Harness
$10 delivery Dec 9 – 1290-day returns10% off Fall into Winter Sale 2024 Copy code pmax10Copied Free $150.01+
44.57
Sport Compact Warehouse
Holley Terminator EFI Wiring Harness
$10 delivery Dec 9 – 1290-day returns10% off Fall into Winter Sale 2024 Copy code pmax10Copied Free $150.01+
44.99
Go Turbo Armageddon
Holley Terminator EFI Wiring Harness
Free delivery Dec 11 – 1630-day returnsSave 6% off orders over $200 for Black Friday! Copy code blackfridayCopied
44.99
Go Turbo Armageddon
Holley Terminator EFI Wiring Harness
Free delivery Dec 11 – 1630-day returnsSave 6% off orders over $200 for Black Friday! Copy code blackfridayCopied
48.32
EFI System Pro
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
48.32
Fidanza
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout Save 6% on orders over $200!. Apply holiday
48.32
Lethal Performance
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
48.46
Amco Auto Parts
Wire Harness Kit - EFI Terminator I/O HOLLEY 558-420
Delivery date & cost shown at checkout
56.99
CSPracing
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Free delivery by Wed, Dec 11
65.99
CSPracing
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
61.22
LMPerformance
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
61.41
AutomotiveStuff com
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout
65.66
Tuner Store
Holley 558-420 - Wire Harness Kit - EFI Terminator I/O
Delivery date & cost shown at checkout

Product Details

It contains Input wires for Inputs 1-4. It contains one wire for Output 2. The software also contains instructions on how to program these.

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Holley Terminator EFI Wiring Harness

Compare Buying Options

Holley 558-420 Terminator EFI Wiring Harness

Holley 558-420 Terminator EFI Wiring Harness

Holley 558-420 - Wire Harness Kit - EFI Terminator I/O

Holley 558-420 Terminator EFI Wiring Harness

Holley 558-420 Terminator EFI Wiring Harness

Holley 558-420 Terminator EFI Wiring Harness

Holley 558-420 Terminator EFI Wiring Harness

Holley 558-420 Terminator EFI Wiring Harness

Holley 558-420 - Wire Harness Kit - EFI Terminator I/O

Holley EFI Wire Harness Kit 558-420