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Chrome Rush countdown – 14% off semi truck parts and chrome accessories at 4 State Trucks
Chrome Rush countdown – 14% off semi truck parts and chrome accessories at 4 State Trucks

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
  • Push Lock Connect Swivel Male Branch Tee DOT 3/8 X 1/4 Inch

    Push Lock Connect Swivel Male Branch Tee DOT 3/8 X 1/4 Inch

    AUTOMANN USA

    $11.52
    Push Lock Connect Swivel Male Branch Tee DOT 3/8 X 1/4 Inch* High Quality Push Lock Connect Swivel* Composite Body * 3/8 Inch X 1/4 Inch* With Brass Collet* Sold Individually* Warranty On Push Lock...
    09-05170046
    SKU:
    09-05170046
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $11.52
    Qty in Cart: 0
    Price:
    $11.52
    Subtotal:
  • Push Lock Connect Swivel Male Branch Tee DOT 3/8 X 1/2 Inch

    Push Lock Connect Swivel Male Branch Tee DOT 3/8 X 1/2 Inch

    AUTOMANN USA

    $17.12
    Push Lock Connect Swivel Male Branch Tee DOT 3/8 X 1/2 Inch* High Quality Push Lock Connect Swivel* Composite Body * 3/8 Inch X 1/2 Inch* With Brass Collet* Sold Individually* Warranty On Push Lock...
    09-05170045
    SKU:
    09-05170045
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $17.12
    Qty in Cart: 0
    Price:
    $17.12
    Subtotal:
  • Push Lock Connect Swivel Male Run Tee DOT 1/4 X 1/8 Inch

    Push Lock Connect Swivel Male Run Tee DOT 1/4 X 1/8 Inch

    AUTOMANN USA

    $8.67
    Push Lock Connect Swivel Male Run Tee DOT 1/4 X 1/8 Inch* High Quality Push Lock Connect Swivel* Composite Body * 1/4 Inch X 1/8 Inch* With Brass Collet* Sold Individually* Warranty On Push Lock...
    09-05170016
    SKU:
    09-05170016
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Heavy Duty
    Material Options:
    Brass
    Make:
    Universal Items
    $8.67
    Qty in Cart: 0
    Price:
    $8.67
    Subtotal:
  • Push Lock Connect Male Run Tee DOT 3/8 X 1/4 Inch

    Push Lock Connect Male Run Tee DOT 3/8 X 1/4 Inch

    AUTOMANN USA

    $14.18
    Push Lock Connect Male Run Tee DOT 3/8 X 1/4 Inch* High Quality Push Lock Connect Swivel* Composite Body * 3/8 Inch X 1/4 Inch* With Brass Collet* Sold Individually* Warranty On Push Lock Connect...
    09-05170013
    SKU:
    09-05170013
    Truck Class:
    Heavy Duty
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $14.18
    Qty in Cart: 0
    Price:
    $14.18
    Subtotal:
  • Push Lock Connect Swivel Male Branch Tee DOT 1/2 X 3/8 Inch

    Push Lock Connect Swivel Male Branch Tee DOT 1/2 X 3/8 Inch

    AUTOMANN USA

    $17.98
    Push Lock Connect Swivel Male Branch Tee DOT 1/2 X 3/8 Inch* High Quality Push Lock Connect Swivel* Composite Body * 1/2 Inch X 3/8 Inch* With Brass Collet* Sold Individually* Warranty On Push Lock...
    09-05170041
    SKU:
    09-05170041
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $17.98
    Qty in Cart: 0
    Price:
    $17.98
    Subtotal:
  • 1/4 X 1/4 Inch Push Lock Connect Swivel Male Branch Tee DOT

    1/4 X 1/4 Inch Push Lock Connect Swivel Male Branch Tee DOT

    AUTOMANN USA

    $10.59
    Push Lock Connect Swivel Male Branch Tee DOT- 1/4 X 1/4 InchProtect your pneumatic system from leaks with this 1/4 x 1/4 Inch Push Lock Connect Swivel Male Branch Tee. Featuring a robust composite...
    09-05170018
    SKU:
    09-05170018
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $10.59
    Qty in Cart: 0
    Price:
    $10.59
    Subtotal:
  • Push Lock Connect Swivel Male Run Tee DOT 1/4 X 1/4 Inch

    Push Lock Connect Swivel Male Run Tee DOT 1/4 X 1/4 Inch

    AUTOMANN USA

    $7.51
    Push Lock Connect Swivel Male Run Tee DOT 1/4 X 1/4 Inch* High Quality Push Lock Connect Swivel* Composite Body * 1/4 Inch X 1/4 Inch* With Brass Collet* Sold Individually* Warranty On Push Lock...
    09-05170015
    SKU:
    09-05170015
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $7.51
    Qty in Cart: 0
    Price:
    $7.51
    Subtotal:
  • Push Lock Connect Swivel Male Run Tee DOT 3/8 X 3/8 Inch

    Push Lock Connect Swivel Male Run Tee DOT 3/8 X 3/8 Inch

    AUTOMANN USA

    $14.70
    Push Lock Connect Swivel Male Run Tee DOT 3/8 X 3/8 Inch* High Quality Push Lock Connect Swivel* Composite Body * 3/8 Inch X 3/8 Inch* With Brass Collet* Sold Individually* Warranty On Push Lock...
    09-05170014
    SKU:
    09-05170014
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $14.70
    Qty in Cart: 0
    Price:
    $14.70
    Subtotal:
  • Push Lock Connect Swivel Male Run Tee DOT 1/2 X 3/8 Inch

    Push Lock Connect Swivel Male Run Tee DOT 1/2 X 3/8 Inch

    AUTOMANN USA

    $17.45
    Push Lock Connect Swivel Male Run Tee DOT 1/2 X 3/8 Inch* High Quality Push Lock Connect Swivel* Composite Body * 1/2 Inch X 3/8 Inch* With Brass Collet* Sold Individually* Warranty On Push Lock...
    09-05170011
    SKU:
    09-05170011
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Heavy Duty
    Material Options:
    Brass
    Make:
    Universal Items
    $17.45
    Qty in Cart: 0
    Price:
    $17.45
    Subtotal:
  • PLC Swivel Male Elbow Fitting DOT 3/8 X 1/2 Inch Replaces 369Ptc68, Kv2L1137S, S769Pmt68

    PLC Swivel Male Elbow Fitting DOT 3/8 X 1/2 Inch Replaces 369Ptc68, Kv2L1137S, S769Pmt68

    AUTOMANN USA

    $10.62
    PLC Swivel Male Elbow Fitting DOT 3/8 Inch X 1/2 Inch* High Quality Elbow* Composite Body * 3/8 Inch X 1/2 Inch* With Brass Collet* Fits 3/8In Tube* Sold Individually* Warranty On Elbows Against...
    09-05040138
    SKU:
    09-05040138
    Truck Class:
    Heavy Duty
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $10.62
    Qty in Cart: 0
    Price:
    $10.62
    Subtotal:
  • PLC Swivel Male Elbow Fitting DOT 3/8 X 1/8 Inch Replaces 369Ptc62, Kv2L1134S, S769Pmt62

    PLC Swivel Male Elbow Fitting DOT 3/8 X 1/8 Inch Replaces 369Ptc62, Kv2L1134S, S769Pmt62

    AUTOMANN USA

    $7.93
    PLC Swivel Male Elbow Fitting DOT 3/8 X 1/8 Inch* High Quality Elbow* Composite Body * 3/8 Inch X 1/8 Inch* With Brass Collet* Fits 3/8In Tube* Sold Individually* Warranty On Elbows Against Defects...
    09-05040139
    SKU:
    09-05040139
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $7.93
    Qty in Cart: 0
    Price:
    $7.93
    Subtotal:
  • PLC Swivel Male Elbow Fitting DOT 1/2 X 1/4 Inch Replaces 369Ptc84, Kv2L1335S, S769Pmt84

    PLC Swivel Male Elbow Fitting DOT 1/2 X 1/4 Inch Replaces 369Ptc84, Kv2L1335S, S769Pmt84

    AUTOMANN USA

    $12.37
    PLC Swivel Male Elbow Fitting DOT 1/2 X 1/4 Inch* High Quality Elbow* Composite Body * 1/2 Inch X 1/4 Inch* With Brass Collet* Fits 1/2In Tube* Sold Individually* Warranty On Elbows Against Defects...
    09-05040134
    SKU:
    09-05040134
    Truck Class:
    Heavy Duty
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $12.37
    Qty in Cart: 0
    Price:
    $12.37
    Subtotal:
  • PLC Swivel Male Elbow Fitting DOT 3/8 X 1/4 Inch Replaces 369Ptc64, Kv2L1135S, S769Pmt64

    PLC Swivel Male Elbow Fitting DOT 3/8 X 1/4 Inch Replaces 369Ptc64, Kv2L1135S, S769Pmt64

    AUTOMANN USA

    $7.35
    PLC Swivel Male Elbow Fitting DOT 3/8 X 1/4 Inch* High Quality Elbow* Composite Body * 3/8 Inch X 1/4 Inch* With Brass Collet* Fits 3/8In Tube* Sold Individually* Warranty On Elbows Against Defects...
    09-05040140
    SKU:
    09-05040140
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $7.35
    Qty in Cart: 0
    Price:
    $7.35
    Subtotal:
  • PLC Swivel Male Elbow Fitting DOT 1/2 X 3/8 Inch Replaces 369Ptc86, Kv2L1336S, S769Pmt86

    PLC Swivel Male Elbow Fitting DOT 1/2 X 3/8 Inch Replaces 369Ptc86, Kv2L1336S, S769Pmt86

    AUTOMANN USA

    $14.36
    PLC Swivel Male Elbow Fitting DOT 1/2 X 3/8 Inch* High Quality Elbow* Composite Body * 1/2 Inch X 3/8 Inch* With Brass Collet* Fits 1/2In Tube* Sold Individually* Warranty On Elbows Against Defects...
    09-05040135
    SKU:
    09-05040135
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $14.36
    Qty in Cart: 0
    Price:
    $14.36
    Subtotal:
  • PLC Swivel Male Elbow Fitting DOT 1/4 X 1/4 Inch Replaces 369Ptc44, Kv2L0735S, S769Pmt44

    PLC Swivel Male Elbow Fitting DOT 1/4 X 1/4 Inch Replaces 369Ptc44, Kv2L0735S, S769Pmt44

    AUTOMANN USA

    $4.92
    PLC Swivel Male Elbow Fitting DOT 1/4 X 1/4 Inch* High Quality Elbow* Composite Body * 1/4 Inch X 1/4 Inch* With Brass Collet* Fits 1/4In Tube* Sold Individually* Warranty On Elbows Against Defects...
    09-05040122
    SKU:
    09-05040122
    Truck Class:
    Heavy Duty
    Material Options:
    Brass
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $4.92
    Qty in Cart: 0
    Price:
    $4.92
    Subtotal:
  • PLC Swivel Male Elbow Fitting DOT 3/8 X 3/8 Inch Replaces 369Ptc66, Kv2L1136S, S769Pmt66

    PLC Swivel Male Elbow Fitting DOT 3/8 X 3/8 Inch Replaces 369Ptc66, Kv2L1136S, S769Pmt66

    AUTOMANN USA

    $11.01
    PLC Swivel Male Elbow Fitting DOT 3/8 X 3/8 Inch* High Quality Elbow* Composite Body * 3/8 Inch X 3/8 Inch* With Brass Collet* Fits 3/8In Tube* Sold Individually* Warranty On Elbows Against Defects...
    09-05040137
    SKU:
    09-05040137
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Heavy Duty
    Material Options:
    Brass
    Make:
    Universal Items
    $11.01
    Qty in Cart: 0
    Price:
    $11.01
    Subtotal:
  • PLC Swivel Male Elbow Fitting DOT 1/2 X 1/2 Inch Replaces 369Ptc88, Kv2L1337S, S769Pmt88

    PLC Swivel Male Elbow Fitting DOT 1/2 X 1/2 Inch Replaces 369Ptc88, Kv2L1337S, S769Pmt88

    AUTOMANN USA

    $14.10
    PLC Swivel Male Elbow Fitting DOT 1/2 X 1/2 Inch* High Quality Elbow* Composite Body * 1/2 Inch X 1/2 Inch* With Brass Collet* Fits 1/2In Tube* Sold Individually* Warranty On Elbows Against Defects...
    09-05040136
    SKU:
    09-05040136
    Material Options:
    Brass
    Truck Class:
    Heavy Duty
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $14.10
    Qty in Cart: 0
    Price:
    $14.10
    Subtotal:
  • PLC Swivel Male Elbow Fitting DOT 1/4 X 3/8 Inch Replaces 369Ptc46, Kv2L0736S, S769Pmt46

    PLC Swivel Male Elbow Fitting DOT 1/4 X 3/8 Inch Replaces 369Ptc46, Kv2L0736S, S769Pmt46

    AUTOMANN USA

    $8.43
    PLC Swivel Male Elbow Fitting DOT 1/4 X 3/8 Inch* High Quality Elbow* Composite Body * 1/4 Inch X 3/8 Inch* With Brass Collet* Fits 1/4In Tube* Sold Individually* Warranty On Elbows Against Defects...
    09-05040123
    SKU:
    09-05040123
    Product Type:
    Air, Electrical, & Safety
    Material Options:
    Brass
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $8.43
    Qty in Cart: 0
    Price:
    $8.43
    Subtotal:
  • 5/32 X 1/4 Inch PLC Union Connector Fitting Replaces Kv2H0307, S762Pmt5324

    5/32 X 1/4 Inch PLC Union Connector Fitting Replaces Kv2H0307, S762Pmt5324

    AUTOMANN USA

    $20.68
    5/32 X 1/4 Inch PLC Union Connector Fitting* High Quality Union Connector* 5/32 Inch X 1/4 Inch* Sold Individually* Warranty On Union Connectors Against Defects In Workmanship & Material From Date Of...
    09-05040049
    SKU:
    09-05040049
    Truck Class:
    Heavy Duty
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $20.68
    Qty in Cart: 0
    Price:
    $20.68
    Subtotal:
  • PLC Standpipe Run Tee 3/8 X 3/8 X 3/8 Inch

    PLC Standpipe Run Tee 3/8 X 3/8 X 3/8 Inch

    AUTOMANN USA

    $12.00
    PLC Standpipe Run Tee 3/8 Inch Standpipe 3/8 Inch Tube 3/8 Inch Tube* High Quality Standpipe Run Tee* Composite Body * 3/8 Inch X 3/8 Inch X 3/8 Inch* With Brass Collet* (2) 3/8In Tube Ends* (1)...
    09-05040133
    SKU:
    09-05040133
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Heavy Duty
    Material Options:
    Brass
    Make:
    Universal Items
    $12.00
    Qty in Cart: 0
    Price:
    $12.00
    Subtotal:
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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.

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