Skip to main content

10% Off Carbs - Save Big On Holley, Brawler, and More!

Motor Life Events Community Support

Categories
- Categories
Brands
Shop By Vehicle
- Shop By Vehicle
Shop By Engine
Deals
- Deals
- Carburetor Sale
- Flowtech Sale
- Clearance Parts

Menu

Shop By Vehicle

Log Out

Most Popular
Air & Fuel Delivery
AN Fittings & Hose
Brakes
Car Care
Cooling
Data Acquisition
Electrical
Engine
Engine Swap Parts
Exhaust
Exterior
Fluids & Additives
Gauges
Ignition
Interior
Lighting
LS & LT Power
Marine and Powersports
Nitrous
Performance Packages
Safety Equipment
Suspension & Chassis
Tools & Shop Equipment
Transmission & Drivetrain
Tuners & Programmers
Wheels
Apparel & Collectibles

Sniper 2
Terminator X
Carburetors
Intake Manifolds
Pumps, Regulators, & Filters
Digital Dashes
LS & LT Power
New Products

EFI - Fuel Injection
Carburetors
Fuel System
Cold Air Intake
View All

Hose
Hose Ends
Adapters
Application Specific Parts
Catch Tanks
Fuel System Components
Hardline
Hose Protection, Sleeving & Clamps
Oil & Cooling Systems
Plumbing Tools
Seals
Valves
Weld-ons and Fill Caps
View All

Brake Kits
Brake Pads
Brake Rotors
Brake Accessories
Calipers
Master Cylinder and Booster
Proportioning Valves
Roll Control & Launch Control
View All

Radiators and Accessories
Water Pumps and Accessories
Fans & Accessories
Oil And Transmission Coolers
Fan Mounting Solutions
Gaskets and Seals
Hose Sleeving
Intercoolers
Thermostats
Water Outlets
Wiring Harnesses and Relays
View All

Digital Dashes
Power Distribution Modules
Data Loggers
Cables
Accessories
Gauges
Modules
Sensors
Sensors With Modules
Vantage
View All

Lighting
Wiring and Relays
Sensors
Alternators
CAN Bus Expansion
Electrical System Accessories
Starters and Starter Accessories
View All

Intake Manifolds
Accessory Drive Kits
Oil Pans
Engine Dress Up
Engine Mounts
Fasteners and Hardware
Forced Induction
Gaskets
Oil Pumps
Timing Covers
Top End Kits
Valvetrain
View All

LS Swap Systems
Gen V LT Swap Systems
Gen III Hemi Swap Systems
Coyote Swap Systems
Godzilla Swap Systems
View All

Exhaust Systems
Performance Mufflers
Headers and Exhaust Manifolds
Exhaust Tips
Builder Components
Catalytic Converters
Cut-Outs and Multi-Mode Kits
Midpipes
Resonator Delete Kits
X Pipes Y Pipes and H Pipes
View All

Rear Spoilers
Hood Pin Kits
Quarter Turn Fasteners
Valances
View All

Carb & Throttle Body Cleaner
Detailing and Wash
Brake Cleaner and Fluid
Diesel
Engine Assembly & Additives
Fuel & Exhaust System Cleaner
Octane Booster
Transmission Fluid
View All

Digital Dashes and Touchscreens
Individual Gauges
Gauge Sets
Gauge Accessories and Harnesses
View All

Spark Plug Wires
Distributors
Ignition Boxes
Ignition Coils
Crank Triggers
Electronic Conversion Kits
Heat Shielding
HyperSpark Ignition for Sniper EFI
Ignition Harnesses
Ignition and Electrical Components
Magnetos
Pro Billet Bundles
RPM & Timing Controls
Smart Coil and Components
Spark Plugs
Tune Up Kits
View All

Dash Bezels & Panels
Floor Mats
Pedals and Pedal Pads
Steering Wheels
Trunk
View All

Headlights
Bulbs and Harnesses
LED Light Bars
View All

LS EFI Systems
LS Swap Systems
LS and LT Intakes
LS and LT Accessory Drives
Fuel Pump Regulator and Filter
LS Engine Dress Up
LS Engine Parts
LS Gaskets
LS Throttle Bodies
LS Tools
LS and LT Drivetrain
LS and LT Exhaust
LS and LT Ignition Products
LS and LT Nitrous Systems
View All

Marine
Motorcycle
UTV
ATV
Small Engine
View All

EFI Systems
Carbureted Plate Systems
Direct Port Systems
Diesel Systems
Bottles and Accessories
Controllers and Electrical
Distribution Blocks, Filters, Adapters and Fittings
Fuel Pumps and Regulators
Gauges
Hose Lines and Tubing
Intercooler Sprayers
Jets
Microswitch and Solenoid Mounting Brackets
Nitrous Plates
Nozzles
Powersport Nitrous Systems
Purge Kits
Refill Kits and Components
Solenoids and Solenoid Service Parts
Tools
View All

2015-2017 VW Golf R
2015-2017 VW GTI
2017-2020 Audi RS3
2017-2022 Audi TT RS
2018-2019 VW Golf R
2018-2021 VW GTI
2018-2025 Audi S4 & S5
2020-2024 Porsche 911
2022-2024 Audi S3
2022-2024 VW GTI
2022-2024 VW Golf R
A9X Supra
F90 M5
F9X X3M & X4M
F9X X5M & X6M
G2X M340i & M440i
G30 M550i
G42 M240i
G87 M2
G8X M3 & M4
View All

Helmets
Harnesses
Racing Suits
Seats
Aprons
Arm Restraints
Base Layers
Chest and Rib Protectors
Cleaners
Drag Parachutes
Equipment Bags
FluidLogic
Gloves
Head and Neck Restraints
Karting
Shifter Boots
Shoes
Tow Straps
Window Nets
Youth
View All

Control Arms
Driveshaft Safety Loops
Shocks and Struts
Springs & Bumpstops
Steering Components
Strut Tower and Chassis Braces
Suspension Packages
Sway Bars and Components
Traction Bars and Components
View All

Carburetor Tools
Diagnostic Tools
Engine Tools
Ignition Tools and Testers
Extra Long Fender Covers
Fender Covers
Fluid Tools
Front End Covers
Hand Tools
Jumbo Fender Covers
Magnetic Fasteners
Plumbing Tools
RTV and Sealants
Safety Wire
Shop Tools
View All

Shifters
Torque Converters and Flexplates
Clutches and Flywheels
Rear Axle & Differential
Bellhousings and Accessories
Fasteners and Hardware
Internal Components
Transmission Controller
Transmission Coolers
Transmission Mounts
Transmission Pans and Dipsticks
Transmission Swap Parts
Transmissions
View All

Handheld Tuners
In-Cabin Tuners and Monitors
AFM and DFM
Start Stop Disabler
Accessories
Amp'd Throttle Booster
Dinan Software-Tuning
Inline Tuning Modules
PCM
View All

Modern and Late Model
OE Replica
Truck and Off-Road Wheels
Vintage
Wheel Accessories
View All

Shirts
Hoodies
Headwear
Sunglasses
Back to School
Backpacks
Decals
Drinkware
Holley Collection
Jackets
Ladies Apparel
Literature
Miscellaneous
View All

What Are You Working On?

Gen III/IV LS
Gen V LT
Small Block Chevy
Big Block Chevy
Ford Coyote
Ford Godzilla
Ford Mod Motor
Small Block Ford
Big Block Ford
Small Block Chrysler
Big Block Chrysler
Gen III Hemi
Gen II Hemi
Gen I Hemi

Carburetor Sale
Flowtech Sale
Clearance Parts

Home /
Air & Fuel Delivery /
EFI - Fuel Injection /
Harnesses and Wiring /
Connectors

Connectors

Sort By:

Featured
Most Popular
Best Deal
Price (low to high)
Price (high to low)
New Arrivals

Filter

More Ways To Shop

On Sale (6)

Availability

In Stock (62)

price

Min

to

Max

Brand

AEM (3)
Holley EFI (58)
MSD (10)
Mr. Gasket (1)

Applied Filters:Clear All

Items 1 - 72 of 72 Items

Sort By:

Featured
Most Popular
Best Deal
Price (low to high)
Price (high to low)
New Arrivals

Holley EFI
Super Seal Terminals (24-20ga) 100 Pack OEM Quality Pins

Part# 571-135

In Stock

$70.19

Compare
Holley EFI
j2A, j2B, j3, j4 Connector & Pin Kit j2A, j2B, j3, j4 Connector & Pin Kit - Contains connectors & pins, but no wiring. for Dominator EFI

Part# 558-408
Free Shipping

In Stock

$233.95

Compare
Holley EFI
LSX Main Harness Connector Kit OEM Quality Connectors

Part# 570-103
Free Shipping

In Stock

$167.95

Compare
Holley EFI
Super Seal Terminals (18-16ga) 100 Pack OEM Quality Pins

Part# 571-136

In Stock

$70.19

Compare
Holley EFI
J4 Connector Kit OEM Quality Connector

Part# 570-348

In Stock

$56.25

Compare
Holley EFI
J1A/J1B ECU Connector Kit J1A/J1B ECU Connector Kit with Pins and Seals

Part# 558-448

In Stock

$118.95

Compare
Holley EFI
HEMI Manifold Air Pressure Connector HEMI MAP SENSOR CONNECTOR

Part# 570-240

In Stock

$15.76

Compare
Holley EFI
4 Pin CAN Connector - Harness Side MIZU-P25 4 CAVITY CONNECTOR

Part# 570-229

In Stock

$16.18

Compare
MSD
Connector Kit, 2-Pin This is the same connector used on MSD's magnetic pick-up harnesses.

Part# 8824

In Stock

$15.37

Compare
Holley EFI
HEMI Manifold Air Temperature Sensor Connector MOLEX 2 CAVITY, FEMALE

Part# 570-227
(1)

In Stock

$12.10

Compare
Holley EFI
J1B Connector Kit OEM Quality Connector

Part# 570-344

In Stock

$56.25

Compare
Holley EFI
J2A Connector Kit OEM Quality Connector

Part# 570-345
(1)

In Stock

$56.25

Compare
Holley EFI
J2B Connector Kit OEM Quality Connector

Part# 570-346

In Stock

$56.25

Compare
Mr. Gasket
Mr. Gasket Weatherproof Connector Kit 232-Piece Weatherpack Connector Kit with Plastic Case

Part# 40010G
(1)

In Stock

$101.95

Compare
Holley EFI
J3 Connector Kit OEM Quality Connector

Part# 570-347

In Stock

$56.25

Compare
Holley EFI
MPFI/TPI Main Harness Connector Kit OEM Quality Connectors

Part# 570-102
Free Shipping

Est. Ship Date: 12/31/2027

$155.95

Compare
Holley EFI
METRIPACK 150 FEMALE PINS 22-20GA 100PK 100 Pack

Part# 571-104

In Stock

$26.20

Compare
MSD
MSD Heat Shrink Terminal Kit 165 Piece Heat Shrink Terminal and Closed End Connector Kit, Spade, Butt, and Ring terminals with 3:1 heat shrink

Part# 81951

In Stock

Advertised Price $84.29

$42.95

Save $41.34

Compare
Holley EFI
Coyote Cam Connector 3 CAVITY, SEALED CONNECTOR

Part# 570-239

In Stock

$13.98

Compare
Holley EFI
HEMI Knock Sensor Connector DMS CONNECTOR HOUSING, 2 PIN

Part# 570-230

In Stock

$15.38

Compare
Holley EFI
METRIPACK WEATHER SEAL WHITE 22-18GA 100 Pack

Part# 571-108

In Stock

$18.21

Compare
Holley EFI
Connector Kit for Holley EFI Stealth Ram Power Pack Kits For Stealth Ram MPI

Part# 534-213

In Stock

$59.95

Compare
Holley EFI
Hall Effect Sensor Connector for 554-118 METRIPACK, 3 CAVITY, FEMALE, BLACK REPLACEMENT CONNECTOR FOR 554-118

Part# 570-223

In Stock

$12.10

Compare
Holley EFI
Modular Ford Cam & Crank / Coyote Crank Connector 2 CAVITY CONNECTOR (FORD ENGINES)

Part# 570-241

In Stock

$28.03

Compare
MSD
MSD Weathertight Connector - 2-Pin - Qty 1 Self-Lubricating Silicone Seals for Protection Against Water, Dust, Oil, and Other Engine Compartment Fluids

Part# 8173

In Stock

$18.19

Compare
Holley EFI
Universal Ignition Connector, Main Harness METRIPACK, 10 CAVITY,FEMALE,BLACK

Part# 570-203

In Stock

$11.18

Compare
Holley EFI
LS 58x Crank Sensor and LS Cam Sensor Connector METRIPACK, 3 CAVITY, FEMALE, BLACK

Part# 570-318

In Stock

$53.25

Compare
Holley EFI
GM Manifold Air Temp Connector GT 150, 2 CAVITY, FEMALE, BLACK

Part# 570-216

In Stock

$13.03

Compare
Holley EFI
GT150 FEMALE PINS 22-20GA 100PK 100 Pack

Part# 571-103

Est. Ship Date: 10/27/2026

$23.65

Compare
Holley EFI
MOLEX MX150 MALE PINS 20-16GA 100PK 100 Pack

Part# 571-112

In Stock

$23.85

Compare
Holley EFI
METRIPACK 150 WEATHER PLUG 100 PACK 100 Pack

Part# 571-134

In Stock

$45.26

Compare
Holley EFI
Coyote Coolant Temperature Sensor Connector MX 150, 2 CAVITY, FEMALE, BLACK

Part# 570-226

In Stock

$14.51

Compare
Holley EFI
HEMI Coolant Temperature Sensor Connector 1.5MM YESC, 2 PIN CONNECTOR

Part# 570-233

In Stock

$13.98

Compare
Holley EFI
Ignition Sub-Harness Connector METRIPACK, 10 CAVITY, MALE, BLACK

Part# 570-204

Est. Ship Date: Coming Soon

$11.18

Compare
Holley EFI
LS Manifold Air Pressure and Crank Shaft Position Sensor METRIPACK, 3 CAVITY, FEMALE, GREY

Part# 570-217

In Stock

$12.70

Compare
Holley EFI
Knock Sensor, MPFI Universal Harness METRIPACK, 3 CAVITY, MALE, BLACK

Part# 570-205

In Stock

$9.76

Compare
Holley EFI
GT 150 WEATHER SEAL GREEN 22-20GA 100 Pack

Part# 571-109

Est. Ship Date: Coming Soon

$18.21

Compare
MSD
MSD Solder Sleeve Wire Splice Kit 42 Piece Solder Sleeve Splice Heat Shrink Kit, white, red, blue and yellow with 2:1 shrink ratio

Part# 81952

In Stock

Advertised Price $43.97

$21.95

Save $22.02

Compare
Holley EFI
Power Tap METRIPACK, 4 CAVITY, FEMALE, BLACK

Part# 570-210

In Stock

$11.39

Compare
Holley EFI
HEMI CAM & Crank Connector APEX 1.2, 3 CAVITY, FEMALE, BLK HOUSING

Part# 570-234

In Stock

$12.55

Compare
MSD
MSD Female Pins and Seals Qty 10 - Replacement Part

Part# 8191

In Stock

$21.01

Compare
Holley EFI
MIZU P25 MALE PINS 100PK 100 Pack

Part# 571-115

In Stock

$23.85

Compare
Holley EFI
Mod/Coyote Knock Sensor Connector MX 150, 6 CAVITY, MALE, BLACK

Part# 570-225

In Stock

$14.14

Compare
Holley EFI
Coyote and Modular Ford Throttle Position Sensor Connector DMS CONNECTOR HOUSING, 3 PIN

Part# 570-231

In Stock

$22.44

Compare
MSD
MSD Male Pins and Seals Qty 10 - Replacement Part

Part# 8190

In Stock

$21.01

Compare
Holley EFI
Modular Ford Coolant Temp Sensor Connector SSC, 2 CAVITY, GREY CONNECTOR

Part# 570-236

In Stock

$13.98

Compare
Holley EFI
Manifold Air Pressure (MAP) WEATHER PACK, 3 CAVITY, TOWER, GREEN

Part# 570-212

Est. Ship Date: Coming Soon

$12.55

Compare
Holley EFI
Input/Output Connector METRIPACK, 8 CAVITY, FEMALE, BLACK

Part# 570-209

In Stock

$11.18

Compare
Holley EFI
Hemi Cam Sensor 3 PIN SEALED CONNECTOR

Part# 570-232

In Stock

$15.39

Compare
Holley EFI
GT150 FEMALE PINS 18-16GA 100PK 100 Pack

Part# 571-107

In Stock

$24.25

Compare
Holley EFI
HEMI Coolant Temperature Sensor Connector APEX 2.8, 3 CAVITY, FEMALE, BLK HOUSING

Part# 570-235

In Stock

$13.98

Compare
Holley EFI
Modular Ford / Coyote Manifold Air Temperature Connector SSC, 2 CAVITY, BLACK CONNECTOR

Part# 570-237

In Stock

$13.98

Compare
Holley EFI
LS1 Knock METRIPACK, 2 CAVITY, FEMALE, BLACK

Part# 570-219

In Stock

$12.70

Compare
AEM
CCU - Plug & Pin Kit - AC Input Supplied with Terminals, Seals, and Housings

Part# 30-3713

In Stock

Advertised Price $63.85

$31.95

Save $31.90

Compare
AEM
CCU - Plug & Pin Kit - HVDC Output Supplied with Terminals, Seals, and Housings

Part# 30-3714

In Stock

Advertised Price $81.29

$40.95

Save $40.34

Compare
AEM
AEM DTM-Style 4-Way Plug Connector Kit · Reusable and rebuildable · Multiuse for a variety of wiring solutions · Extra pin in case of mishap · High quality lock/seal to keep contaminants out

Part# 35-2624

In Stock

Advertised Price $9.73

$8.76

Save $0.97

Compare
Holley EFI
Idle Air Control (IAC) 4 Square WEATHER PACK, 4 CAVITY, TOWER, BLACK

Part# 570-214

In Stock

$15.39

Compare
Holley EFI
LS2 Knock GT 150, 2 CAVITY, FEMALE, BLACK

Part# 570-220

In Stock

$12.70

Compare
Holley EFI
Modular Ford / Coyote Idle Air Control Connector SSC, 2 CAVITY, BLACK CONNECTOR

Part# 570-238

In Stock

$13.98

Compare
Holley EFI
Wideband Connector - Main Harness Side METRIPACK, 8 PIN, MALE, BLACK (10-PACK)

Part# 570-300

In Stock

$42.07

Compare
Holley EFI
Ignition Sub Harness Connector METRIPACK, 10 CAVITY, MALE, BLACK

Part# 570-304

In Stock

$53.25

Compare
Holley EFI
LS Manifold Air Pressure Sensor and 24x Crank Connector METRIPACK, 3 CAVITY, FEMALE, GREY

Part# 570-317

In Stock

$53.25

Compare
Holley EFI
GT 150 WEATHER SEAL WHITE 24-20GA 100 Pack

Part# 571-111

Est. Ship Date: Coming Soon

$18.21

Compare
Holley EFI
MX 150 CAVITY PLUG 100 Pack

Part# 571-116

Est. Ship Date: Coming Soon

$18.21

Compare
Holley EFI
MX 150 WEATHER SEAL 20-16AWG 100 Pack

Part# 571-117

Est. Ship Date: Coming Soon

$18.21

Compare
Holley EFI
090-II SERIES FEMALE PINS 22-20GA 100PK 100 Pack

Part# 571-119

Est. Ship Date: Coming Soon

$18.98

Compare
Holley EFI
SSC FEMALE PINS 22-18GA 100PK 100 Pack

Part# 571-126

Est. Ship Date: Coming Soon

$22.58

Compare
Holley EFI
AMP 064 FEMALE PINS 22GA 100PK 100 Pack

Part# 571-127

In Stock

$46.60

Compare
MSD
MSD Weathertight Connector - 1-Pin - Qty 1 Self-Lubricating Silicone Seals for Protection Against Water, Dust, Oil, and Other Engine Compartment Fluids

Part# 8174

In Stock

Advertised Price $18.19

$10.95

Save $7.24

Compare
MSD
MSD Deutsch Connector - 4-Pin - 16-18 Gauge Supplied with Terminals, Seals, and Housings

Part# 8181

In Stock

$25.95

Compare
MSD
MSD Deutsch Connector - 2-Pin - 16-18 Gauge Supplied with Terminals, Seals, and Housings

Part# 8183

In Stock

$21.01

Compare
MSD
MSD Deutsch Connector - 2-Pin - 12-14 Gauge Supplied with Terminals, Seals, and Housings

Part# 8184

In Stock

$49.95

Compare

1

Recently Viewed Items

Delta Force Performance Air Intake

Fits Nissan Titan 2017-2024 trucks with the 5.6L engine. CARB EO #D-698-12 Compliant for 2017-2020 Titan with 5.6L.

Delta Force Performance Air Intake

Fits 2009-2014 GM Silverado/Sierra 1500 Trucks and SUV's with 4.8L, 5.3L, 6.0L or 6.2L Engines.

Connectors

Shop EFI wiring connectors, pins, and seals at Holley. Explore sensor, ignition, and input/output connectors for GM LS, Ford Modular, Coyote, and HEMI applications, plus replacement terminals and cavity plugs for harness repairs and custom wiring.

Join the Holley Family

Stay up to date with the latest releases, events, promotions and more.

THANK YOU!

Thank you for signing up! Check your inbox for deals, new items, and more.

Holley Performance Brands is dedicated to protecting your privacy and keeping your information secure. By clicking “Sign Up” you confirm you have read and understood our Privacy Policy

Company Info

About Us
Investors
Careers
Patents
Terms of Use
Privacy Policy

Technical Support

Technical Resources
Product Registration
Warranty Information
Dealer Locator
Become a Dealer

Help

Track Your Order
Report a Damaged Item
Returns Policy
See All Help Topics

Ask our Experts

Monday - Friday8AM - 5PM CST

(Hours may vary)

Ask our Experts

Monday - Friday8AM - 5PM CST

Company Info
Technical Support
Order Help

© 2026 Holley Performance Products, Inc. All Rights Reserved.