Chevrolet GMC 3500 Truck Safety, Air & Electrical

Enhance your Chevrolet GMC 3500 truck with high-quality safety, air, and electrical parts from 4 State Trucks. From 7-foot custom wiring harnesses to 4-way flat to 7-way RV blade adapters, and die-cast metal 6-way connectors, we have it all. Ensure your truck's performance and reliability with our top-notch parts and accessories made fit for your truck.

Product
Qty in Cart
Quantity
Price
Subtotal

FREE SHIPPING OVER $249

22-18 AWG Clear W/ Red CS Heat Shrink Butt Connector - 10 PCS

AFTERMARKET

MSRP:

$11.12

Was:

Clear W/ Red CS Heat Shrink Butt Connector* High Quality Butt Connector* Clear With Red Stripe* 10 Pieces* 22-18 AWG* Heat Shrink Terminals Have Been Adhesive-Lined To Seal The Connection* The...

09-16030120

SKU:

09-16030120

Truck Class:

Universal

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

$11.12

Was:

Qty in Cart: 0

Price:

MSRP:

$11.12

Was:

Subtotal:
On Sale

Limited Quantity Available

FREE SHIPPING OVER $249

12-10 To 8 AWG Clear W/ Yellow CS Multi-Wire Heat Shrink Butt Connector - 5 PCS

AFTERMARKET

MSRP:

Now: $5.47

Was: $22.91

Clear W/ Yellow CS Multi-Wire Heat Shrink Butt Connector* High Quality Butt Connector* Clear With Yellow Dash* 5 Pieces* 12-10 To 8 AWG* Adhesive Multi-Wire Heat Shrink* The Best Way To Connect...

09-16030119

SKU:

09-16030119

Truck Class:

Universal

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

Now: $5.47

Was: $22.91

Qty in Cart: 0

Price:

MSRP:

Now: $5.47

Was: $22.91

Subtotal:
FREE SHIPPING OVER $249

12-10 AWG Clear W/ Blue CS Multi-Wire Heat Shrink Butt Connector - 5 PCS

AFTERMARKET

MSRP:

$16.69

Was:

Clear W/ Blue CS Multi-Wire Heat Shrink Butt Connector* High Quality Butt Connector* Clear With Blue Dash* 5 Pieces* 16-14 To 12-10 AWG * Adhesive Multi-Wire Heat Shrink* The Best Way To Connect...

09-16030118

SKU:

09-16030118

Truck Class:

Universal

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

MSRP:

$16.69

Was:

Qty in Cart: 0

Price:

MSRP:

$16.69

Was:

Subtotal:
On Sale

FREE SHIPPING OVER $249

Limited Quantity Available

20-18 To 16-14 AWG Clear W/ Red CS Multi-Wire Heat Shrink Butt Connector - 5 PCS

AFTERMARKET

MSRP:

Now: $6.28

Was: $11.99

Clear W/ Red CS Multi-Wire Heat Shrink Butt Connector* High Quality Butt Connector* Clear With Red Dash* 5 Pieces* 20-18 To 16-14 AWG CS 4:1 * Adhesive Multi-Wire Heat Shrink * The Best Way To...

09-16030117

SKU:

09-16030117

Truck Class:

Universal

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

Now: $6.28

Was: $11.99

Qty in Cart: 0

Price:

MSRP:

Now: $6.28

Was: $11.99

Subtotal:
On Sale

Limited Quantity Available

FREE SHIPPING OVER $249

24-22 To 20-18 AWG Clear W/ White CS Multi-Wire Heat Shrink Butt Connector - 5 PCS

AFTERMARKET

MSRP:

Now: $5.55

Was: $10.90

Clear W/ White CS Multi-Wire Heat Shrink Butt Connector* High Quality Butt Connector* 5 Pieces* 24-22 To 20-18 AWG * Adhesive Multi-Wire Heat Shrink * Clear With White Dash * The Best Way To Connect...

09-16030116

SKU:

09-16030116

Truck Class:

Universal

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

Now: $5.55

Was: $10.90

Qty in Cart: 0

Price:

MSRP:

Now: $5.55

Was: $10.90

Subtotal:
FREE SHIPPING OVER $249

18-10 AWG Clear W/ Yellow Dash 4:1 Adhesive Closed Ended Heat Shrink Connector - 5 PCS

AFTERMARKET

MSRP:

$7.63

Was:

18-10 AWG 4:1 Adhesive Heat Shrink Connector* High Quality Heat Shrink Connector* Clear With Yellow Dash* 5 Pieces* 18-10 AWG CS * 4:1 Adhesive Closed-End * Creates A Protective Seal To Prevent...

09-16030115

SKU:

09-16030115

Truck Class:

Universal

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

MSRP:

$7.63

Was:

Qty in Cart: 0

Price:

MSRP:

$7.63

Was:

Subtotal:
FREE SHIPPING OVER $249

22-14 AWG Clear W/ Blue Dash 4:1 Adhesive Closed Ended Heat Shrink Connector - 5 PCS

AFTERMARKET

MSRP:

$6.25

Was:

22-14 AWG 4:1 Adhesive Heat Shrink Connector* High Quality Heat Shrink Connector* Clear With Blue Dash * 5 Pieces* 22-14 AWG CS * 4:1 Adhesive Closed-End * Creates A Protective Seal To Prevent...

09-16030114

SKU:

09-16030114

Truck Class:

Universal

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

MSRP:

$6.25

Was:

Qty in Cart: 0

Price:

MSRP:

$6.25

Was:

Subtotal:
FREE SHIPPING OVER $249

Mini Fuse Holder, 1-30A, 12AWG Leads, Waterproof

AFTERMARKET

MSRP:

$3.84

Was:

1-30 AMP In-Line Fuse Holder W/ Protective Cap & 12 AWG WireThe mini-fuse is a fast-acting blade-type fuse ideal for circuit protection in all vehicles. Its compact design saves space while allowing...

09-16030113

SKU:

09-16030113

Length Options:

11 Inch

Truck Class:

Universal

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

MSRP:

$3.84

Was:

Qty in Cart: 0

Price:

MSRP:

$3.84

Was:

Subtotal:
FREE SHIPPING OVER $249

12 AWG ATO / ATC Blade In-Line Fuse Holder

AFTERMARKET

MSRP:

$3.84

Was:

1-30 AMP In-Line Fuse Holder W/ 12 AWG WireThis in-line ATC/ATO fuseholder is perfect for adding fuse protection to new or existing circuits. It works with 1-30 AMP ATC/ATO fuses and features a...

09-16030112

SKU:

09-16030112

Truck Class:

Universal

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

MSRP:

$3.84

Was:

Qty in Cart: 0

Price:

MSRP:

$3.84

Was:

Subtotal:
FREE SHIPPING OVER $249

16-14 AWG Blue Nylon Push On Male/Female Disconnects W/ .250 Tab - 5/5 Pack

AFTERMARKET

MSRP:

$3.75

Was:

Fully Insulated Push On Male/Female Disconnects For 16-14 AWG Wires W/ .250 Tab* High Quality Male/ Female Disconnect* Nylon* Blue* 16-14 AWG, .250 Tab * Push-On * Fully Insulated* Sold Individually*...

09-16030106

SKU:

09-16030106

Truck Class:

Universal

Color:

Blue

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

MSRP:

$3.75

Was:

Qty in Cart: 0

Price:

MSRP:

$3.75

Was:

Subtotal:
FREE SHIPPING OVER $249

Red, Yellow, Blue Vinyl Insulated Butt Connector - 17 PCS

AFTERMARKET

MSRP:

$3.75

Was:

Red, Yellow, Blue Vinyl Insulated Butt Connector* High Quality Insulated Butt Connector* Vinyl* Assortment Of Colors* 17 Pieces* 22-10 AWG* PVC Injection Molded With Funnel Entry For Fast Easy Wire...

09-16030105

SKU:

09-16030105

Truck Class:

Universal

Material Options:

Vinyl

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

MSRP:

$3.75

Was:

Qty in Cart: 0

Price:

MSRP:

$3.75

Was:

Subtotal:
FREE SHIPPING OVER $249

18-14 AWG White Quick Splice Connector - 6 PCS

AFTERMARKET

MSRP:

$3.68

Was:

18-14 AWG Quick Splice Connector No Stop* High Quality Mid-Line Tap Connector* White* 18-14 AWG * 6 Piece Set* Wire Stop Provides Instant Connection* Connector Is Color Coded For Wire Size And...

09-16030102

SKU:

09-16030102

Color:

White

Truck Class:

Universal

Material Options:

Plastic/Poly

Make:

Universal Items

Size Options:

14 Gauge

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

$3.68

Was:

Qty in Cart: 0

Price:

MSRP:

$3.68

Was:

Subtotal:
FREE SHIPPING OVER $249

18-14 AWG Blue Quick Splice Connector - 6 PCS

AFTERMARKET

MSRP:

$3.68

Was:

18-14 AWG Quick Splice Connector W/ Stop* High Quality Mid-Line Tap Connector* Blue* 18-14 AWG* 6 Piece Set* Wire Stop Provides Instant Connection* Connector Is Color Coded For Wire Size And...

09-16030099

SKU:

09-16030099

Truck Class:

Universal

Color:

Blue

Material Options:

Plastic/Poly

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

MSRP:

$3.68

Was:

Qty in Cart: 0

Price:

MSRP:

$3.68

Was:

Subtotal:
FREE SHIPPING OVER $249

22-16 AWG Red Quick Splice Connector - 6 PCS

AFTERMARKET

MSRP:

$3.68

Was:

22-16 AWG Quick Splice Connector W/ Stop* High Quality Mid-Line Tap Connector* Red* 22-16 AWG* 6 Piece Set* Wire Stop Provides Instant Connection* Connector Is Color Coded For Wire Size And...

09-16030098

SKU:

09-16030098

Truck Class:

Universal

Color:

Red

Material Options:

Plastic/Poly

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

$3.68

Was:

Qty in Cart: 0

Price:

MSRP:

$3.68

Was:

Subtotal:
On Sale

Limited Quantity Available

FREE SHIPPING OVER $249

18-8 AWG Red/Yellow Premium Vinyl Twist Connector - 4 PCS

AFTERMARKET

MSRP:

Now: $0.81

Was: $3.60

18-8 AWG Red/Yellow Twist Connector* High Quality Premium Vinyl Twist Connector* Red/Yellow* Max 5 X 12 AWG* Min 2 X 18 AWG* Capable Of Connecting Two Or More Wires Together In A Pigtail Application*...

09-16030095

SKU:

09-16030095

Truck Class:

Universal

Material Options:

Vinyl

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

Now: $0.81

Was: $3.60

Qty in Cart: 0

Price:

MSRP:

Now: $0.81

Was: $3.60

Subtotal:
On Sale

Limited Quantity Available

FREE SHIPPING OVER $249

22-12 AWG Tan/Yellow Premium Vinyl Twist Connector - 6 PCS

AFTERMARKET

MSRP:

Now: $0.86

Was: $3.62

22-12 AWG Tan/Yellow Twist Connector* High Quality Premium Vinyl Twist Connector* Tan/Yellow* Max 3 X 12 AWG* Min 2 X 22 AWG* Capable Of Connecting Two Or More Wires Together In A Pigtail...

09-16030094

SKU:

09-16030094

Truck Class:

Universal

Material Options:

Vinyl

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

Now: $0.86

Was: $3.62

Qty in Cart: 0

Price:

MSRP:

Now: $0.86

Was: $3.62

Subtotal:
FREE SHIPPING OVER $249

2 AWG Seamless Tubular Copper Lugs with Flared Ends. 3/8 Inch Stud - 5 Pack

AFTERMARKET

MSRP:

$14.19

Was:

2 AWG H.D. Seamless Tubular Copper Lug W/ Flared EndsThis pack contains five seamless copper lugs for 2 AWG wires with 3/8 inch studs. Made of 100% copper, they're suitable for crimping or soldering...

09-16030093

SKU:

09-16030093

Diameter Options:

3/8 Inch

Truck Class:

Universal

Material Options:

Copper

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

MSRP:

$14.19

Was:

Qty in Cart: 0

Price:

MSRP:

$14.19

Was:

Subtotal:
FREE SHIPPING OVER $249

4 AWG Seamless Tubular Copper Lugs with Flared Ends. 3/8 Inch Stud - 5 Pack

AFTERMARKET

MSRP:

$10.91

Was:

4 AWG H.D. Seamless Tubular Copper Lug W/ Flared EndsJT&T's Seamless Tubular Copper Lugs consist of 100% copper. These lugs can be crimped or soldered and are stackable. Each lug has the gauge...

09-16030092

SKU:

09-16030092

Diameter Options:

3/8 Inch

Truck Class:

Universal

Material Options:

Copper

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

$10.91

Was:

Qty in Cart: 0

Price:

MSRP:

$10.91

Was:

Subtotal:
On Sale

FREE SHIPPING OVER $249

Limited Quantity Available

6 AWG Seamless Tubular Copper Lugs with Flared Ends. 3/8 Inch Stud - 5 Pack

AFTERMARKET

MSRP:

Now: $1.95

Was: $8.73

6 AWG H.D. Seamless Tubular Copper Lug W/ Flared EndsJT&T's Seamless Tubular Copper Lugs are made from 100% copper. You can crimp or solder these lugs, and they are stackable for convenience. The...

09-16030091

SKU:

09-16030091

Truck Class:

Universal

Diameter Options:

3/8 Inch

Material Options:

Copper

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

Now: $1.95

Was: $8.73

Qty in Cart: 0

Price:

MSRP:

Now: $1.95

Was: $8.73

Subtotal:
FREE SHIPPING OVER $249

12-10 AWG Yellow Nylon Female Flag Terminal W/ .250 Tab - 4 PCS

AFTERMARKET

MSRP:

$3.76

Was:

12-10 AWG Fully Insulated Female Flag Terminal W/ .250 Tab* High Quality Female Flag Terminal* Nylon* Yellow* 4 Pieces* 12-10 AWG, .250 * Fully Insulated * Injection Molded With Funnel Entry For Fast...

09-16030090

SKU:

09-16030090

Truck Class:

Universal

Color:

Yellow

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

MSRP:

$3.76

Was:

Qty in Cart: 0

Price:

MSRP:

$3.76

Was:

Subtotal:

Total: items /

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Upgrade your Chevrolet GMC 3500 Truck with essential safety, air, and electrical components for top performance. This product lineup includes trailer wiring, air brake parts, and safety accessories to ensure a smooth and reliable ride.

Frequently Asked Questions About Chevrolet GMC 3500 Truck Safety, Air & Electrical

What kinds of products are included in this category?

This category covers safety, air system, and electrical components for Chevrolet and GMC 3500 trucks, including items such as air horns, air lines and fittings, wiring components, lighting relays, switches, backup alarms, and related electrical accessories used to keep your truck safe, visible, and running the way it should.

Will these parts fit my specific model year of Chevrolet or GMC 3500?

Fitment can vary by model year and cab configuration, so it is important to check the compatibility details listed on each product page before ordering. If you are unsure whether a part matches your truck, our team can help you confirm fitment based on your VIN or truck specs before you buy.

Do these electrical and air components meet DOT requirements?

Many safety-related items, such as lighting and air system components, are manufactured to meet applicable DOT standards, and this will be noted on the product listing when it applies. If DOT compliance is required for your application, we recommend reviewing the specific product details or reaching out to us to confirm before purchasing.

Are these parts easy to install myself, or should I have a professional do it?

Some items, like switches or basic wiring accessories, are straightforward for anyone comfortable with basic tools and wiring. Others, such as air system components or more involved electrical installs, may require prior experience with truck electrical or air systems, or a qualified technician, to ensure everything is installed safely and functions correctly.

What should I do if a part arrives damaged or does not work as expected?

If a product arrives damaged, defective, or does not match what you ordered, contact our customer service team as soon as possible so we can help with a return, replacement, or troubleshooting. Keeping your order details handy will help us resolve the issue quickly.