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Moroso 9875M Mag-Tune 8mm Spark Plug Wire Set - Big Block Chevy/GMC HEI

(Chevrolet Corvette 1974, Impala 1974-76, Malibu 1974-75, C1500 1990-93, C10 Pickup 1974, Caprice 1974-76, C10 1975-80, El Camino 1974-75 + 70 more models)

Manufacturer

Picture for manufacturer Moroso

Part Number

9875M
14 reviews
Sale Price

$39.54

4 left at this price

delivery box

Usually delivered within 2 days

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No Hassle Returns

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Moroso 9875M Mag-Tune spark plug wire set delivers reliable high-performance ignition for Big Block Chevrolet and GMC engines equipped with HEI distributors. These professionally assembled wires feature a spiral core design that effectively suppresses electromagnetic interference while maintaining strong spark energy delivery.

Key Features:

  • 8.0mm diameter high-temperature silicone jacket for superior heat resistance
  • 90-degree spark plug boots for tight clearance applications and clean installations
  • Spiral core conductor provides excellent RFI/EMI suppression
  • Custom-fit wire lengths for Big Block Chevy/GMC engines
  • Black silicone construction for a professional appearance
  • HEI distributor terminal ends included
  • Complete kit with all necessary wires for V8 applications

Moroso's Mag-Tune wire sets are engineered for enthusiasts who demand reliable ignition performance in street, strip, and marine applications. The spiral core design delivers consistent spark energy while the premium silicone jacketing resists heat, oil, and fuel contamination for long-lasting durability.

Products specifications

Fits

Chevrolet Corvette 1974, Impala 1974-76, Malibu 1974-75, C1500 1990-93, C10 Pickup 1974, Caprice 1974-76, C10 1975-80, El Camino 1974-75, K2500 1991-95, C3500 1988-95, K10 Pickup 1974, C20 Pickup 1974, K10 1976, 1979-80 + 65 more models

Assembled

Yes

Coil Wire Included

Yes

Conductor Style

Spiral core

Diameter (mm)

8.00mm

Distributor Boot Color

Black

Distributor Boot Material

Silicone

Distributor Terminal Ends

Male/HEI

Notes

Designed to be routed over the valve covers.

Quantity

Sold as a kit.

RFI Suppression

Yes

Spark Plug Boot Color

Black

Spark Plug Boot Ends

Two 90 degree

Spark Plug Boot Material

Silicone

Wire Color

Black

Good

Very easy to find the parts I need

good

Easy and fast

I'm trying you guys again, hopefully when you say "In Stock" this time it really is !

Order several parts from Autoplicity for much less than the price I could find on any other site. With 3 days the first part was delivered to my door.<br><br>Excellent price and fast delivery time!

It was simple and easy, now I just want to see my product :)

It was cool

Not only were they the cheapest price on the web, they shipped out my item the next day!<br><br>Thank you Autoplicity!<br><br>I'll definitely use you again/

Quick and easy! the best!

no problem's very good

Everything was fine except I had an issue at the checkout. I tried to pay with my American Express but could not as there was an AVS mismatch, but it worked with my master card. I am in Australia and had the items sent to and American address so I would a

Extremely easy using Amazon as a vehicle for payment. Great delivery time for an exhaust of only 4 days.

Had everything I needed and had the best price

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