Instruction Sheets for Part Number CEI-109030
Caspers Electronics Complete 86/87 Engine Wiring Harnesses for 1986-1987 REGAL - 109030
Part Number: CEI-109030
Caspers Electronics Complete 86/87 Engine Wiring Harnesses
Wiring Harness, Engine, Buick, Each
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Estimated Ship Date: Oct 27, 2026 Would you rather pick it up?
Overview
Caspers Electronics Complete 86/87 Engine Wiring Harnesses
Caspers Electronics complete 86/87 engine wiring harnesses are 100 percent electronically inspected and designed to work exactly like your original harness—only better! These Caspers exclusive harnesses are OEM designs with modern-day improvements, like better wire routing, sealed automotive spec relays, separate positive feeds through the harness, and a factory fit and finish.
Features and benefits:
* Uses correct color-coded automotive-grade TXL oxygen-free copper wire throughout
* All color coding conforms to OEM specifications. Tracers were added in certain wiring to
correctly identify during build
* All connectors used are GM factory-specified OEM connectors
* Five fuse links are installed (original design used only three fuse links, two shared)
* The harnesses use individual ground wires for every electrical ground in the harness (no
internal splices) to assist in the electrical integrity of the grounds
* Grounds are extended to allow placement on intake bolt instead of bell housing bolts
* Hard plastic wiring channel that is located under coil pack has been eliminated and replaced with round conduit
* Most of the taping has been replaced with hard plastic conduit clips to eliminate unravelling
* Extensive under-taping is applied to the wiring bundles for build integrity
* All internal splices are ultrasonically welded for improved connection integrity
* Several connections have been lengthened to improve fit over OEM harness
* New design oval conduit clips are supplied, produced with improved material
* Plated metal clips are supplied to facilitate installation
* All relays have been replaced with 21st century automotive sealed relays
* Fan delay relay has been eliminated to address electrical reliability issues inherent in its
design
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Some parts are not legal for use in California or other states with similar laws / regulations
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