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

10 Pack 4-Way Black Nylon Adhesive Cable Tie Mount 1 Inch

UNITED PACIFIC

MSRP:

$4.99

Was:

4-Way Black Nylon Adhesive Cable Tie Mount 1 Inch 10 Pack* High Quality Cable Tie Mount* Made Of Nylon* 4 Way Design* Black* Adhesive Mount* Sold As Pack (10)* Warranty On Cable Tie Mounts Against...

09-16030540

SKU:

09-16030540

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

$4.99

Was:

Qty in Cart: 0

Price:

MSRP:

$4.99

Was:

Subtotal:
FREE SHIPPING OVER $249

6-1 AWG 3 Way Top Post Terminal

UNITED PACIFIC

MSRP:

$18.99

Was:

3 Way Top Post Terminal 6-1 AWG* High Quality Battery Terminal* 3 Way Top Post* 6 To 1 AWG* 1 Positive/1Negative* Sold As Pack (2)* Warranty On Battery Terminals Against Defects In Workmanship &...

09-16030531

SKU:

09-16030531

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

$18.99

Was:

Qty in Cart: 0

Price:

MSRP:

$18.99

Was:

Subtotal:
FREE SHIPPING OVER $249

Copper Primary Wire W/ Smooth Surface, Stranded Annealed & Options

UNITED PACIFIC

MSRP:

Now: $7.99 - $8.99

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksGreen 18 Gauge Copper Primary Wire 30 Ft Length W/ Smooth Surface & Stranded AnnealedPrimary Wire 30 Ft...

PPR_301271

SKU:

PPR_301271

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

Now: $7.99 - $8.99

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $7.99 - $8.99

Was:

Subtotal:
FREE SHIPPING OVER $249

Rocker Switch Caling Style W/ Options

UNITED PACIFIC

MSRP:

$15.99

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBlack 1 Piece Rocker Switch Carling Style On/Off W/ Single Post, Single Throw1 Piece Black Rocker...

PPR_301279

SKU:

PPR_301279

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

$15.99

Was:

Qty in Cart: 0

Price:

MSRP:

$15.99

Was:

Subtotal:
FREE SHIPPING OVER $249

Toggle Switch 1 Piece W/ Position Options

UNITED PACIFIC

MSRP:

Now: $15.99 - $20.99

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksOn/Off Toggle Switch 1 Piece W/ 2 Prong Connection1 Piece On/Off Toggle Switch W/ 2 Prong Connection*...

PPR_301278

SKU:

PPR_301278

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

Now: $15.99 - $20.99

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $15.99 - $20.99

Was:

Subtotal:
FREE SHIPPING OVER $249

Bosch Style Relay Switch W/ 30/40 AMP 12V Tab

UNITED PACIFIC

MSRP:

$8.99

Was:

Bosch Style Relay Switch W/ Standard 5 Pin Relay* High Quality Relay Switch* Bosch Style* Standard 5 Pin Relay* 30/40 Amp 12V Tab* Sold Individually* Warranty On Relay Switches Against Defects In...

09-16190911

SKU:

09-16190911

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

$8.99

Was:

Qty in Cart: 0

Price:

MSRP:

$8.99

Was:

Subtotal:
FREE SHIPPING OVER $249

Bosch Style Relay Harness 14 AWG & 18 Foot Leads

UNITED PACIFIC

MSRP:

$9.99

Was:

Bosch Style Relay Harness W/ Standard 5 Pole Relay Plug* High Quality Relay Harness* Bosch Style* Standard 5 Pole Relay Plug* 14 AWG* 18 Foot Leads* Sold Individually* Warranty On Relay Harnesses...

09-16190912

SKU:

09-16190912

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

$9.99

Was:

Qty in Cart: 0

Price:

MSRP:

$9.99

Was:

Subtotal:
FREE SHIPPING OVER $249

Battery Isolator Switch W/ Hardware & 2 Keys

UNITED PACIFIC

MSRP:

$20.99

Was:

Battery Isolator Switch W/ 2 Keys & Hardware* High Quality Battery Isolator Switch* Includes: - (2) Keys - Hardware* Sold Individually* Warranty On Battery Isolator Switches Against Defects In...

09-16200204

SKU:

09-16200204

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

$20.99

Was:

Qty in Cart: 0

Price:

MSRP:

$20.99

Was:

Subtotal:
FREE SHIPPING OVER $249

Spring Brake Valve W/ 3/8 Inch NPT Control & Supply Port Replaces 170.110171

AFTERMARKET

MSRP:

$72.99

Was:

Spring Brake Valve W/ 1/2 & 3/8 Inch Reservoir Ports, 2 - 3/8 Inch Delivery Port* High Quality Spring Brake Valve* Protected Reservoir Spring Brake Control Valve* Control And Supply Ports Are...

09-05170509

SKU:

09-05170509

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

$72.99

Was:

Qty in Cart: 0

Price:

MSRP:

$72.99

Was:

Subtotal:
FREE SHIPPING OVER $249

MV3 Dash Valve W/ Integral Push=Lock-Connect Fittings & 4 M6 X 1 - 6H Mounting Holes Replaces 170.800622WF, 5006257

AFTERMARKET

MSRP:

$200.99

Was:

MV3 Dash Valve 5.8 X 1.5 Inch C To C W/ 5 - 3/8 Inch PLC Ports* High Quality Dash Valve* MV3 Type Dash Control Module With Integral Push-Lock-Connect Fittings* Trailer Trip Pressure 25-45 PSI*...

09-05170508

SKU:

09-05170508

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

$200.99

Was:

Qty in Cart: 0

Price:

MSRP:

$200.99

Was:

Subtotal:
FREE SHIPPING OVER $249

T18/24 Disc Brake Chamber W/ 2.5 Inch Ram Stroke & 4 Inch Push Rod Replaces 179.SB1824DB, LCP1824D

AFTERMARKET

MSRP:

$162.99

Was:

T18/24 Disc Brake Chamber 9.125 Chamber Height & 4.75 Inch C To C Mount Hole Distance* High Quality Disc Brake Chamber* T18/24 Disc Brake* Spring Brake Chamber Type* (2) M16 - 1.5 X 1.75 Inch...

09-05170510

SKU:

09-05170510

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

$162.99

Was:

Qty in Cart: 0

Price:

MSRP:

$162.99

Was:

Subtotal:
FREE SHIPPING OVER $249

FF2 Type Full Function Trailer Valve W/ 2 Way Check & 4 Port Relay Valves Replaces 170.KN28601

AFTERMARKET

MSRP:

$118.99

Was:

FF2 Type Full Function Trailer Valve W/ Control, Spring Brake, Supply, Reservoir & Delivery Ports* High Quality Trailer Valve* FF2 Type Full Function Valve* Combines The Functions of Pressure...

09-05170504

SKU:

09-05170504

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

$118.99

Was:

Qty in Cart: 0

Price:

MSRP:

$118.99

Was:

Subtotal:
FREE SHIPPING OVER $249

Air Brake Inversion Valve W/ Dust Shield On The Exhaust Port Replaces 14449, 280758

AFTERMARKET

MSRP:

$58.99

Was:

Air Brake Inversion Valve W/ 0.28 Inch Mounting Holes, Delivery, Supply & Control Ports* High Quality Air Brake Inversion Valve* Inlet Opening Descending Pressure Common Control: 45 PSI* Exhaust...

09-05170505

SKU:

09-05170505

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

$58.99

Was:

Qty in Cart: 0

Price:

MSRP:

$58.99

Was:

Subtotal:
FREE SHIPPING OVER $249

MV3 Type Dash Valve W/ Integral Push-Lock-Connect Fittings Replaces 170.KN20619, 20560009

AFTERMARKET

MSRP:

$156.99

Was:

MV3 Type Dash Valve 3.5 X 5.33 Inch C To C W/ 4 0.3 Inch Diameter Bolt Holes & 6 - 3/8 Inch PLC Ports* High Quality Dash Valve* MV3 Type Dash Control Module With Integral Push-Lock-Connect Fittings*...

09-05170506

SKU:

09-05170506

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

$156.99

Was:

Qty in Cart: 0

Price:

MSRP:

$156.99

Was:

Subtotal:
FREE SHIPPING OVER $249

BPR1 Type Brake Proportioning Relay Valve W/ 5.5 PSI Crack Pressure & Mounting Bracket Replaces 170.065146

AFTERMARKET

MSRP:

$61.99

Was:

BPR1 Type Brake Proportioning Relay Valve W/ Control, Service, Supply & Deliver Ports* High Quality Relay Valve* BPR1 Type Brake Proportioning Relay Valve* 5.5 PSI Crack Pressure* Mounting Bracket...

09-05170500

SKU:

09-05170500

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

$61.99

Was:

Qty in Cart: 0

Price:

MSRP:

$61.99

Was:

Subtotal:
FREE SHIPPING OVER $249

SR7 Type Spring Brake Modulating Valve Replaces 170.K021558

AFTERMARKET

MSRP:

$162.99

Was:

SR7 Type Spring Brake Modulating Valve W/ Control, Balance, Supply & Delivery Ports* High Quality Spring Brake Valve* SR7 Type Spring Brake Modulating Valve* Ports: - (1) 1/4 Inch NPT Control Port ...

09-05170501

SKU:

09-05170501

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

$162.99

Was:

Qty in Cart: 0

Price:

MSRP:

$162.99

Was:

Subtotal:
FREE SHIPPING OVER $249

MV3 Type Dash Valve Control Module W/ Integral Push-Lock-Connect Fittings Replaces 5009234, 801360

AFTERMARKET

MSRP:

$152.99

Was:

MV3 Type Dash Valve 4.21 X 3 Inch C To C W/ 4 - .0275 Inch Diameter Bolt Holes* High Quality Dash Valve* MV3 Type Dash Control Module With Integral Push-Lock-Connect Fittings* Auxiliary Port Not...

09-05170502

SKU:

09-05170502

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

$152.99

Was:

Qty in Cart: 0

Price:

MSRP:

$152.99

Was:

Subtotal:
FREE SHIPPING OVER $249

R12V Type Relay Valve W/ 4 PSI Crack Pressure & Mounting Brackets Replaces 170.065303

AFTERMARKET

MSRP:

$54.99

Was:

R12V Type Relay Valve 2.61 X 1 Inch C To C Bolt Holes W/ Service, Supply & Delivery Ports* High Quality Relay Valve* R12V Type Relay Valve* 4 PSI Crack Pressure* Mounting Bracket Included* Ports: -...

09-05170496

SKU:

09-05170496

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

$54.99

Was:

Qty in Cart: 0

Price:

MSRP:

$54.99

Was:

Subtotal:
FREE SHIPPING OVER $249

R12V Type Relay Valve W/ 4 PSI Crack Pressure & Mounting Bracket Replaces 170.065104

AFTERMARKET

MSRP:

$52.99

Was:

R12V Type Relay Valve 2.61 Inch C To C Bolt Hole Width W/ Service, Supply & Delivery Ports* High Quality Relay Valve* R12V Type Relay Valve* 4 PSI Crack Pressure* Mounting Bracket Included* Ports: -...

09-05170497

SKU:

09-05170497

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

$52.99

Was:

Qty in Cart: 0

Price:

MSRP:

$52.99

Was:

Subtotal:
FREE SHIPPING OVER $249

SR7 Spring Brake Valve W/ 2 - 1.38 Inch M1 Mounting Studs Replaces 170.K021560, K021560

AFTERMARKET

MSRP:

$172.99

Was:

SR7 Spring Brake Valve W/ 3/8 PLC Control & Balance Port, 1/2 NPT Supply Port* High Quality Spring Brake Valve* SR7 Type Spring Brake Modulating Valve* Includes: - 3/8 Inch PLC Control Port - 3/8...

09-05170507

SKU:

09-05170507

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

$172.99

Was:

Qty in Cart: 0

Price:

MSRP:

$172.99

Was:

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.