Talk to the experts. Call 800.979.0122, 7am-10pm CST, everyday.

REWARDS

GIFT CARDS

DEALS

TRACK ORDER

HELP CENTER

My

List

Menu

Shop

Garage

Cart

Account

/

/

/

Electrical, Lighting and Wiring

/

/

Electrical, Lighting and Wiring

1978 GMC C25 E40D Electrical, Lighting and Wiring Parts

Navigation Links

Get Shipping Estimates

Subcategory

Gauge Wiring and Cables

1

Sensors, Relays, Senders, and Fuses

1

Wiring Harness and Components

1

Part

Speedometer Wiring and Senders

1

Transmission Wiring Harnesses

1

Brand

Classic Instruments

1

1

Discounts

1

Price

2

Customer Rating

1

1

1

1

1

2 products fit your

1978 GMC C25

Add Engine

Show Direct Fit Parts

2 products

Sort By:

Fitment

1978 GMC C25

Category

Electrical, Lighting and Wiring

Transmission Family

E40D

Products

-8%

Classic Instruments SN74Z Speed Signal Module

Classic Instruments |

#2751028Z

Classic Instruments SN74Z Speed Signal Module

(3)

Hall Effect:

Yes

Sending Unit Type:

Speedometer Signal Converter

$158.95

/each

$172.95

Holley 558-473 Chrysler 46RE Trans Control Harness, Term X Max

Holley |

#425558473

Holley 558-473 Chrysler 46RE Trans Control Harness, Term X Max

Sold in Quantity:

Kit

GTIN Code:

090127101551

$179.95

/kit

Showing all 2 results

Shop Feedback:

Did you find what you are looking for?

Customer Impersonation Script