1999 GMC Truck Parts - Electrical & Wiring

Taylor's aluminum battery boxes meet NHRA rules for installations where there is no firewall between the driver and the battery. They fit most battery sizes and hard-mount the battery to the frame. The removable top allows...

This stunningly smooth billet switch is perfect for power windows, power door locks, headlights, or anything that uses a momentary switch. Dimensions: 2.125"(54mm) Long 1.0" (25mm) Wide 1.6" (41mm) Deep Includes wire...

Genuine GM starter bolts for various models. For 4.3L 5.0L 5.7L, or 502 Engine. Replaces GM Numbers 12338064, 09000852, or 10465167. Works with GM Performance 9000852 or 12606096 high-torque mini starters, also works with...

This Painless Performance premium performance terminal assortment kit provides 84 pieces of assorted sized electrical teminals. These terminals are American made and are top quality. The terminal assortment kit weighs one...

Mounts in 1/8" hole. 12 Volt operation. Made in USA

This kit uses a 250 AMP solenoid and toggle switch. This switch can be hidden anywhere in the vehicle as a anti-theft deterrent by disconnecting the constant battery power from the battery to the fuse block. Kit comes...

This 250 AMP dual battery controller set includes a three position switch to control the second battery through the operation of the solenoid. Switch position one isolates the auxiliary battery. No light. Position two...

This harness is standalone and is not intended to replace the OEM engine wiring. Standalone harnesses are intended to run the designated engine & transmission only, generally when swapped into another vehicle. This harness...

Do you want to use the switch for another purpose? This "Hot-Dot" switch is a "momentary on" switch. Use for either positive (+) or ground (-) switching, rated 1 amp maximum load. Mounts in a 5/8" hole.

Do you want to use the switch for another purpose? This "Hot-Dot" switch is a switch with "click on/click off" functionality. Use for either positive (+) or ground (-) switching, rated 1 amp maximum load. Mounts in a 5/8"...

The safe way to add electrical accessories is with a CirKit Boss®? kit from Painless Performance. This kit allows for the addition of 3 fused circuits to your already existing factory fuseblock. Simply mount the fuse block...

These dual-purpose sleeves enhance performance, reduce misfires, extend plug wire life and will not react with petroleum products. The double-wall construction keeps the wire and boot cooler in a high-temperature engine....

The Pro Series system is the ultimate wire solution from Keep It Clean™. Thanks to detailed instructions, color-coded and labeled wire, and plug-n-play connectors, Pro Series is easy to install and simple to expand....

This weatherproof Fan-Thom II kit comes with a threaded thermostat that screws into the engine block or intake manifold for a professional looking installation. This is inexpensive protection for an electric fan and a...

This TH700R4 Transmission Torque Convertor Lock-Up Kit takes all the guesswork out of controlling the lock-up function on your TH700R4 overdrive transmission. This kit will work with both carbureted and fuel injected engines...

A hot exhaust manifold can cause serious damage to your electrical system. If not properly fastened, the wiring harness leading to your alternator/generator or other wiring harnesses could fall into an open area between the...

This harness is standalone and is not intended to replace the OEM engine wiring. Standalone harnesses are intended to run the designated engine & transmission only, generally when swapped into another vehicle. This Painless...

Keep It Clean™ ProComp wire system is easy to install and simple to expand. Includes detailed instructions, color-coded / labeled wire and plug-n-play connectors. The ultra small fuse block can be mounted in any...

Perfect for trunk mounted batteries. Both positive and negative cables are 1 gauge and 16 feet in length which allows for them to be attached to the engine for maximum starting current. Helps prevent voltage drop to the...

Thermo-Flex Aluminum is a composite heat shield material with unlimited uses. The material is manufactured with a combination of materials to provide abrasion-resistance, thermal insulation, and physical containment of hoses...

Installing a Painless fuel injection harness and want to keep all your emissions devices intact? The Painless solution is to install a Painless emissions harness. These harnesses activate the AIR Port Solenoid Control, AIR...

This 21 circuit universal harness is adaptable to fit the 1960's, 70s, or 80s GM, and Chrysler muscle cars where a bulkhead connector is required. Some minor bulkhead modification may be required. Included with this harness...

OE style reproduction of the original style cloth insulator designed for use with various 1930-2017 GM, Chrysler, and Ford models. This cloth insulation can be used for almost any electrical wiring harnesses for protection....

This harness is standalone and is not intended to replace the OEM engine wiring. Standalone harnesses are intended to run the designated engine & transmission only, generally when swapped into another vehicle. This harness...

The safe way to add electrical accessories to any vehicle is with a Painless Performance CirKit Boss. The CirKit Boss is the first circuit isolator system available with both constant and ignition hot circuits. This kit...

Now you can turn any modern style battery into a vintage looking one by adding this battery topper featuring the correct special grain just as original. Battery toppers are designed to be used with any maintenance free flat...

The solution for vehicles with GM starters that are hard to start when hot, or vehicles with old or worn out electrical systems. Works by boosting available amperage to the starter solenoid. Installation Instructions:...

This Park / Neutral relay set uses the stock neutral safety switch to also provide for ECM park/neutral ground signal needed when installing factory-style fuel injection into older vehicles. For use with any aftermarket...

Universal black powdercoated dropout battery box from CPP. This box relocates your vehicles battery from the engine compartment to the frame where space allows. The box drops down for service or replacement of the battery. ...

This stunningly smooth billet switch is perfect for power windows, power door locks, headlights, or anything that uses a momentary switch. Dimensions: 2.125"(54mm) Long 1.0" (25mm) Wide 1.6" (41mm) Deep Includes wire...

This flasher is recommended when upgrading to LEDs. Due to the lower current that LED lighting draws, the factory flasher may cause inconsistant flashing. Replaces the 3-terminal 550 flasher that fits a wide range of classic...

Correct style external tooth lock washers used on various GM vehicles. Zinc plated. Correct hardware can make any installation job easier. Replace your missing or damaged hardware with these quality reproductions. This part...

Ringbrothers universal billet ON/OFF toggle switch.

Ringbrothers universal billet momentary toggle switch.

This Remote Master Disconnect with Mechanical Latching Solenoid is ideal for everyday vehicle applications and is a simple and effective theft deterrent. Features a constant hot wire for computer or radio presets. It uses a...

Universal brushed stainless steel dropout battery box from CPP. This box relocates your vehicles battery from the engine compartment to the frame where space allows. The box drops down for service or replacement of the...

Convert your separate ignition switch and start button into one convenient unit with the "Hot-Dot" all-in-one ignition starter switch. This handsome chrome recessed switch is 3/4" diameter and has a colored LED ring to...

Express sleeving is a combination of a high-temperature insulation material and a highly reflective Mylar foil with a Velcro closure. The sleeving is designed to simply and effectively protect wire, hoses, and cables from...

Mounts in 5/16" hole. 12 Volt operation. Made in USA

This safety feature is a must have for any electric fuel-pump fed Muscle Car. If your motor stalls and your float is sticking, or worse, if you're in an accident severe enough to stop the motor, your electric fuel pump will...

This kit has only the highest quality components. Kit comes complete with 16 feet of red #1 gauge positive cable and 3 feet of black #1 gauge cable, both with heavy duty battery terminals already installed capable of...

This harness is standalone and is not intended to replace the OEM engine wiring. Standalone harnesses are intended to run the designated engine & transmission only, generally when swapped into another vehicle. If you require...

Mounts in 5/16" hole. 12 Volt operation. Made in USA

6 pin harness for use with rocker switch # AL701101.

DEI Easy Loom is the answer to those ugly plastic stock wire looms. These split loom sleeves from DEI offer a clean, classy way to protect exposed wires, cables, and hoses. They are easy to install and resistant to abrasion,...

This stunningly smooth billet switch is perfect for power windows, power door locks, headlights, or anything that uses a momentary switch. Dimensions: 2.125"(54mm) Long 1.0" (25mm) Wide 1.6" (41mm) Deep Includes wire...

This stunningly smooth billet switch is perfect for power windows, power door locks, headlights, or anything that uses a momentary switch. Dimensions: 2.125"(54mm) Long 1.0" (25mm) Wide 1.6" (41mm) Deep Includes wire...

Ringbrothers universal billet ON/OFF toggle switch.

Wire your dual electric fan/shroud assembly the easy way with this wiring harness and relay specifically designed for Northern dual electric fan set-ups. This wiring kit will protect your car's electrical system from the...

Relay banks are ideal for powering accessories such as fuel pumps, water pumps, throttle stops, electric cooling fans, nitrous solenoids, etc. and for keeping the relays in a centralized location. Installation Instructions:...

Convert your separate ignition switch and start button into one convenient unit with the "Hot-Dot" all-in-one ignition starter switch. This handsome chrome recessed switch is 3/4" diameter and has a colored LED ring to...

Installing a Painless fuel injection harness and want to keep all your emissions devices intact? The Painless solution is to install a Painless emissions harness. These harnesses activate the AIR Port Solenoid Control, AIR...

When upgrading tail lights to the newer high wattage halogens, always use a relay. This set gives you everything you need to protect your wiring and switches. Made in USA Installation Instructions: Download Here

Add an additional 12V power outlet to your vehicle with a universal fit 12 volt power outlet assembly with cover. The plastic cover prevents dirt and moisture from entering the socket. This dependable source of 12V power,...

This Painless Performance modular blank fuse block can be used on any vehicle where additional circuits are needed. The four circuit ATO fuse center works great for in-line wiring applications, such as trailer wiring or when...

These dual-purpose sleeves enhance performance, reduce misfires, extend plug wire life and will not react with petroleum products. The double-wall construction keeps the wire and boot cooler in a high-temperature engine....

Thermo-Flex Aluminum is a composite heat shield material with unlimited uses. The material is manufactured with a combination of materials to provide abrasion-resistance, thermal insulation, and physical containment of hoses...

Correct replacement voltage regulator serrated washer head shoulder bolts used on various GM passenger cars from 1963-1968 and truck models from 1963-1971. Note: For 3/8" hole well nut with captive brass inserts. use...

This flasher is recommended when upgrading to LEDs. Due to the lower current that LED lighting draws, the factory flasher may cause inconsistant flashing. Replaces the standard 552 flasher found on a wide variety of classic...