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

12-10 AWG Yellow Nylon Insulated Butt Connector - 8 PCS

AFTERMARKET

MSRP:

$3.75

Was:

Yellow Nylon Insulated Butt Connector* High Quality Insulated Butt Connector* Nylon* Yellow* 8 Pieces* 12-10 AWG* Injection Molded With Funnel Entry For Fast Easy Wire Insertion* V Groove Serrations...

09-16030072

SKU:

09-16030072

Color:

Yellow

Truck Class:

Universal

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

$3.75

Was:

Qty in Cart: 0

Price:

MSRP:

$3.75

Was:

Subtotal:
On Sale

Limited Quantity Available

FREE SHIPPING OVER $249

12-10 AWG Yellow Vinyl Insulated Butt Connector - 14 PCS

AFTERMARKET

MSRP:

Now: $0.89

Was: $3.70

Yellow Vinyl Insulated Butt Connector* High Quality Insulated Butt Connector* Vinyl* Yellow* 14 Pieces* 12-10 AWG* PVC Injection Molded With Funnel Entry For Fast Easy Wire Insertion* V Groove...

09-16030071

SKU:

09-16030071

Truck Class:

Universal

Color:

Yellow

Material Options:

Vinyl

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

Now: $0.89

Was: $3.70

Qty in Cart: 0

Price:

MSRP:

Now: $0.89

Was: $3.70

Subtotal:
FREE SHIPPING OVER $249

16-14 AWG Blue Vinyl Pin Terminal - 12 PCS

AFTERMARKET

MSRP:

$3.75

Was:

16-14 AWG Insulated Pin Terminal - 12 PCS* High Quality Insulated Pin Terminal* Vinyl* Blue* 12 Pieces* 16-14 AWG * PVC Injection Molded With Funnel Entry For Fast Easy Wire Insertion* V Groove...

09-16030069

SKU:

09-16030069

Color:

Blue

Truck Class:

Universal

Material Options:

Vinyl

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

$3.75

Was:

Qty in Cart: 0

Price:

MSRP:

$3.75

Was:

Subtotal:
On Sale

Limited Quantity Available

FREE SHIPPING OVER $249

16-14 AWG Blue Insulated Vinyl Hook Terminal For NO. 10 Stud - 6 PCS

AFTERMARKET

MSRP:

Now: $1.77

Was: $3.68

16-14 AWG Insulated Vinyl Hook Terminal For NO. 10 Stud - 6 PCS* High Quality Insulated Hook Terminal* Vinyl* Blue* 6 Pieces* 16-14 AWG * No. 10 Stud* PVC Injection Molded With Funnel Entry For Fast...

09-16030068

SKU:

09-16030068

Color:

Blue

Truck Class:

Universal

Material Options:

Vinyl

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

Now: $1.77

Was: $3.68

Qty in Cart: 0

Price:

MSRP:

Now: $1.77

Was: $3.68

Subtotal:
On Sale

Limited Quantity Available

FREE SHIPPING OVER $249

16-14 AWG Blue Vinyl Spade Terminal For NO.10 Stud

AFTERMARKET

MSRP:

Now: $0.86

Was: $3.68

16-14 AWG Insulated Spade Terminal For NO.10 Stud* High Quality Vinyl Insulated Spade Terminal* Blue* 16-14 AWG * No. 10 Stud* 19 Piece Set* PVC Injection Molded With Funnel Entry For Fast Easy Wire...

09-16030067

SKU:

09-16030067

Truck Class:

Universal

Color:

Blue

Material Options:

Vinyl

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

Now: $0.86

Was: $3.68

Qty in Cart: 0

Price:

MSRP:

Now: $0.86

Was: $3.68

Subtotal:
On Sale

Limited Quantity Available

FREE SHIPPING OVER $249

16-14 AWG Blue Vinyl Spade Terminal For NO. 8 Stud

AFTERMARKET

MSRP:

Now: $0.83

Was: $3.68

16-14 AWG Insulated Spade Terminal For NO. 8 Stud* High Quality Vinyl Insulated Spade Terminal* Blue* 16-14 AWG * No. 8 Stud* 19 Piece Set* PVC Injection Molded With Funnel Entry For Fast Easy Wire...

09-16030066

SKU:

09-16030066

Truck Class:

Universal

Color:

Blue

Material Options:

Vinyl

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

Now: $0.83

Was: $3.68

Qty in Cart: 0

Price:

MSRP:

Now: $0.83

Was: $3.68

Subtotal:
FREE SHIPPING OVER $249

16-14 AWG Blue Vinyl Ring Terminal For 3/8 Inch Stud - 14 Pack

AFTERMARKET

MSRP:

$3.68

Was:

Insulated Ring Terminal For 3/8 Inch Stud And 16-14 AWG Wires* High Quality Vinyl Insulated Ring Terminal* Blue* 16-14 AWG * 3/8 Inch Stud* 14 Piece Set* PVC Injection Molded With Funnel Entry For...

09-16030065

SKU:

09-16030065

Color:

Blue

Truck Class:

Universal

Material Options:

Vinyl

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

16-14 AWG Blue Vinyl Ring Terminal For 5/16 Inch Stud - 14 Pack

AFTERMARKET

MSRP:

$3.68

Was:

Insulated Ring Terminal For 5/16 Inch Stud And 16-14 AWG Wires* High Quality Vinyl Insulated Ring Terminal* Blue* 16-14 AWG *5/16 Inch Stud* 14 Piece Set* PVC Injection Molded With Funnel Entry For...

09-16030064

SKU:

09-16030064

Color:

Blue

Truck Class:

Universal

Material Options:

Vinyl

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

16-14 AWG Blue Vinyl Ring Terminal For 1/4 Inch Stud - 14 Pack

AFTERMARKET

MSRP:

$3.75

Was:

Insulated Ring Terminal For 1/4 Inch Stud And 16-14 AWG Wires* High Quality Vinyl Insulated Ring Terminal* Blue* 16-14 AWG * 1/4 Inch Stud* 14 Piece Set* PVC Injection Molded With Funnel Entry For...

09-16030063

SKU:

09-16030063

Truck Class:

Universal

Color:

Blue

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:
On Sale

Limited Quantity Available

FREE SHIPPING OVER $249

16-14 AWG Blue Vinyl Ring Terminal For NO. 10 Stud - 19 Pack

AFTERMARKET

MSRP:

Now: $0.96

Was: $3.68

Insulated Ring Terminal For NO. 10 Stud And 16-14 AWG Wires* High Quality Vinyl Insulated Ring Terminal* Blue* 16-14 AWG * No. 10 Stud* 19 Piece Set* PVC Injection Molded With Funnel Entry For Fast...

09-16030062

SKU:

09-16030062

Truck Class:

Universal

Color:

Blue

Material Options:

Vinyl

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

Now: $0.96

Was: $3.68

Qty in Cart: 0

Price:

MSRP:

Now: $0.96

Was: $3.68

Subtotal:
FREE SHIPPING OVER $249

16-14 AWG Blue Vinyl Ring Terminal For NO. 8 Stud - 19 Pack

AFTERMARKET

MSRP:

$3.75

Was:

Insulated Ring Terminal For NO. 8 Stud And 16-14 AWG Wires* High Quality Vinyl Insulated Ring Terminal* Blue* 16-14 AWG * No. 8 Stud* 19 Piece Set* PVC Injection Molded With Funnel Entry For Fast...

09-16030061

SKU:

09-16030061

Color:

Blue

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

16-14 AWG Blue Vinyl Ring Terminal For # 6 Stud - 19 Pack

AFTERMARKET

MSRP:

$3.75

Was:

Insulated Ring Terminal For NO. 6 Stud And 16-14 AWG Wires* High Quality Vinyl Insulated Ring Terminal* Blue* 16-14 AWG * No. 6 Stud* 19 Piece Set* PVC Injection Molded With Funnel Entry For Fast...

09-16030060

SKU:

09-16030060

Color:

Blue

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

16-14 AWG Blue Nylon Push On Male Disconnect, .250 Tab - 10 Pack

AFTERMARKET

MSRP:

$3.75

Was:

16-14 AWG Fully Insulated Push On Male Disconnect W/ .250 Tab - 10 PCS* High Quality Male Disconnect* Nylon* Blue* 10 Pieces* 16-14 AWG, .250 Tab * Push-On Style * Fully Insulated * Injection Molded...

09-16030057

SKU:

09-16030057

Color:

Blue

Truck Class:

Universal

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

MSRP:

$3.75

Was:

Qty in Cart: 0

Price:

MSRP:

$3.75

Was:

Subtotal:
On Sale

FREE SHIPPING OVER $249

Limited Quantity Available

16-14 AWG Blue Vinyl Push On Male Disconnect, .250 Tab - 20 Pack

AFTERMARKET

MSRP:

Now: $2.58

Was: $3.68

16-14 AWG Insulated Push On Male Disconnect W/ .250 Tab* High Quality Male Disconnect* Vinyl* Blue* 20 Pieces* 16-14 AWG, .250 Tab * Push-On Style * Fully Insulated * PVC Injection Molded With Funnel...

09-16030056

SKU:

09-16030056

Color:

Blue

Truck Class:

Universal

Material Options:

Vinyl

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

Now: $2.58

Was: $3.68

Qty in Cart: 0

Price:

MSRP:

Now: $2.58

Was: $3.68

Subtotal:
FREE SHIPPING OVER $249

16-14 AWG Blue Nylon Push On Female Disconnect, .250 Tab - 10 Pack

AFTERMARKET

MSRP:

$3.75

Was:

Fully Insulated Push On Female Disconnect For 16-14 AWG Wires W/ .250 Tab - 10 PCS* High Quality Insulated Female Disconnect* Nylon* Blue* 10 Pieces* 16-14 AWG, .250 Tab * Push-On Style* Injection...

09-16030055

SKU:

09-16030055

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:
16-14 AWG Blue Vinyl Push On Female Disconnect, .250 Tab - 20 Pack

AFTERMARKET

MSRP:

$3.75

Was:

Insulated Push On Female Disconnect For 16-14 AWG Wires W/ .250 Tab - 20 PCS* High Quality Insulated Female Disconnect* Vinyl* Blue* 20 Pieces* 16-14 AWG, .250 Tab * Push-On Style* PVC Injection...

09-16030054

SKU:

09-16030054

Truck Class:

Universal

Color:

Blue

Material Options:

Vinyl

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

$3.75

Was:

Qty in Cart: 0

Price:

MSRP:

$3.75

Was:

Subtotal:
On Sale

Limited Quantity Available

FREE SHIPPING OVER $249

16-14 AWG Blue Vinyl Push On Female Disconnect, .187 Tab - 19 Pack

AFTERMARKET

MSRP:

Now: $1.69

Was: $3.68

Insulated Push On Female Disconnect For 16-14 AWG Wires W/ .187 Tab* High Quality Insulated Female Disconnect* Vinyl* Blue* 19 Pieces* 16-14 AWG, .250 Tab * Push-On Style* Injection Molded With...

09-16030053

SKU:

09-16030053

Color:

Blue

Truck Class:

Universal

Material Options:

Vinyl

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

Now: $1.69

Was: $3.68

Qty in Cart: 0

Price:

MSRP:

Now: $1.69

Was: $3.68

Subtotal:
FREE SHIPPING OVER $249

16-14 AWG Blue Nylon Insulated Butt Connector - 14 PCS

AFTERMARKET

MSRP:

$3.75

Was:

Blue Nylon Insulated Butt Connector* High Quality Insulated Butt Connector* Nylon* Blue* 14 Pieces* 16-14 AWG* Injection Molded With Funnel Entry For Fast Easy Wire Insertion* V Groove Serrations To...

09-16030052

SKU:

09-16030052

Color:

Blue

Truck Class:

Universal

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

$3.75

Was:

Qty in Cart: 0

Price:

MSRP:

$3.75

Was:

Subtotal:
FREE SHIPPING OVER $249

16-14 AWG Blue Vinyl Insulated Butt Connector - 20 PCS

AFTERMARKET

MSRP:

$3.75

Was:

Blue Vinyl Insulated Butt Connector* High Quality Vinyl Insulated Butt Connector* Blue* 16-14 AWG * 20 Piece Set* PVC Injection Molded With Funnel Entry For Fast Easy Wire Insertion* Terminals Have V...

09-16030051

SKU:

09-16030051

Truck Class:

Universal

Color:

Blue

Material Options:

Vinyl

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

$3.75

Was:

Qty in Cart: 0

Price:

MSRP:

$3.75

Was:

Subtotal:
FREE SHIPPING OVER $249

22-18 AWG Red 4 Way Vinyl Connector - 4 PCS

AFTERMARKET

MSRP:

$3.75

Was:

22-18 AWG 4 Way Insulated Connector* High Quality Insulated Connector* Vinyl* Red* 4 Pieces* 22-18 AWG * 4-Way * X Shaped* PVC Injection Molded With Funnel Entry For Fast Easy Wire Insertion* V...

09-16030050

SKU:

09-16030050

Truck Class:

Universal

Color:

Red

Material Options:

Vinyl

Make:

Universal Items

Product Type:

Air, Electrical, & Safety

Ready To Ship:

Yes

MSRP:

$3.75

Was:

Qty in Cart: 0

Price:

MSRP:

$3.75

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.