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Safety-Air-Electrical

Shop semi truck gladhands, air tanks, semi-trailer cords, 7-way receptacles and more. We stock premium aftermarket replacement air system and electrical components to maintain your truck’s critical air line connections.
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Brass Hose Adapter Male To Female 3/8 X 3/8 Inch

    Brass Hose Adapter Male To Female 3/8 X 3/8 Inch

    PARTS DISTRIBUTING

    $5.09
    Brass Male To Female Hose Adapter - 3/8 X 3/8 Inch* High Quality Hose Adapter* Brass* 3/8 Inch X 3/8 Inch* Male To Female Adapter* Sold Individually* Warranty On Hose Adapters Against Defects In...
    BP12066
    SKU:
    BP12066
    Material Options:
    Brass
    Truck Class:
    Heavy Duty
    Ready To Ship:
    Yes
    Make:
    Universal Items
    $5.09
    Qty in Cart: 0
    Price:
    $5.09
    Subtotal:
  • Brass Flared Cap Nut- 5/8 Inch

    Brass Flared Cap Nut- 5/8 Inch

    PARTS DISTRIBUTING

    $3.11
    Brass Flared Cap Nut- 5/8 Inch* High Quality Flared Cap Nut* Brass* 5/8 Inch* Sold Individually* Warranty On Flared Cap Nuts Against Defects In Workmanship & Material From Date Of Purchase*** High...
    F4010
    SKU:
    F4010
    Material Options:
    Brass
    Truck Class:
    Heavy Duty
    Diameter Options:
    5/8 Inch
    Ready To Ship:
    Yes
    Make:
    Universal Items
    $3.11
    Qty in Cart: 0
    Price:
    $3.11
    Subtotal:
  • Brass Hose Fpt To Mpt Adapter- 1/4 X 1/8 Inch

    Brass Hose Fpt To Mpt Adapter- 1/4 X 1/8 Inch

    PARTS DISTRIBUTING

    $3.64
    Brass Hose Fpt To Mpt Adapter- 1/4 X 1/8 Inch* High Quality Hose Adapter* Brass* 1/4 Inch X 1/8 Inch* Sold Individually* Warranty On Hose Adapters Against Defects In Workmanship & Material From Date...
    BP12042
    SKU:
    BP12042
    Truck Class:
    Heavy Duty
    Material Options:
    Brass
    Ready To Ship:
    Yes
    Make:
    Universal Items
    $3.64
    Qty in Cart: 0
    Price:
    $3.64
    Subtotal:
  • On Sale
    Limited Quantity Available
    Brass Fitting Reducer Adapter Fpt-Fpt 3/8 X 1/4 Inch

    Brass Fitting Reducer Adapter Fpt-Fpt 3/8 X 1/4 Inch

    PARTS DISTRIBUTING

    Now: $0.65
    Was: $6.11
    Brass Fitting Reducer Adapter Fpt-Fpt 3/8 X 1/4 Inch* High Quality Reducer* Made Of Brass * 3/8 Inch x 1/4 Inch* Sold Individually* Warranty On Reducer Against Defects In Workmanship & Material From...
    BP11964
    SKU:
    BP11964
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Material Options:
    Brass
    Ready To Ship:
    Yes
    Now: $0.65
    Was: $6.11
    Qty in Cart: 0
    Price:
    Now: $0.65
    Was: $6.11
    Subtotal:
  • 5/8 Inch Brass Flare Union: Compression Union Fittings

    5/8 Inch Brass Flare Union: Compression Union Fittings

    PARTS DISTRIBUTING

    $7.27
    5/8 Inch Brass Flare Union: Compression Union Fittings* High Quality Flare Union* Brass* 5/8 Inch* Compression Union Fittings* Sold Individually* Warranty On Union Flared Against Defects In...
    F4210
    SKU:
    F4210
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Diameter Options:
    5/8 Inch
    Material Options:
    Brass
    Ready To Ship:
    Yes
    $7.27
    Qty in Cart: 0
    Price:
    $7.27
    Subtotal:
  • Brass Long Nipple 3/8 X 2 Inch

    Brass Long Nipple 3/8 X 2 Inch

    PARTS DISTRIBUTING

    $6.11
    Brass Long Nipple 3/8 X 2 Inch* High Quality Nipple* Brass* 3/8 Inch X 2 Inch* Sold Individually* Warranty On Nipples Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    BP113620
    SKU:
    BP113620
    Material Options:
    Brass
    Truck Class:
    Heavy Duty
    Length Options:
    2 Inch
    Diameter Options:
    3/8 Inch
    Ready To Ship:
    Yes
    Make:
    Universal Items
    $6.11
    Qty in Cart: 0
    Price:
    $6.11
    Subtotal:
  • Brass Street Elbow- 90 Degree- 1/2 X 1/2 Inch

    Brass Street Elbow- 90 Degree- 1/2 X 1/2 Inch

    TRAMEC SLOAN

    $6.55
    1/2 X 1/2 Inch 90 Degree Street Elbow* High Quality Elbow* Brass* 1/2 Inch X 1/2 Inch* 90 Degree* Sold Individually* Warranty On Elbows Against Defects In Workmanship & Material From Date Of...
    BP1168
    SKU:
    BP1168
    Truck Class:
    Heavy Duty
    Material Options:
    Brass
    Ready To Ship:
    Yes
    Make:
    Universal Items
    Product Type:
    Air, Electrical, & Safety
    $6.55
    Qty in Cart: 0
    Price:
    $6.55
    Subtotal:
  • On Sale
    Limited Quantity Available
    Stud Battery Cable Lug 4 Gauge, 3/8 Inch Stud Hole

    Stud Battery Cable Lug 4 Gauge, 3/8 Inch Stud Hole

    PARTS DISTRIBUTING

    Now: $1.28
    Was: $2.03
    8 Gauge 3/8 Inch Stud Battery LugThe Battery Lug is designed for high current demands in your vehicle. Its heavy-walled, tin-plated construction provides excellent conductivity and durability,...
    EL430838
    SKU:
    EL430838
    Truck Class:
    Heavy Duty
    Size Options:
    8 Gauge
    Make:
    Universal Items
    Diameter Options:
    3/8 Inch
    Ready To Ship:
    Yes
    Now: $1.28
    Was: $2.03
    Qty in Cart: 0
    Price:
    Now: $1.28
    Was: $2.03
    Subtotal:
  • 1/4 Inch Square Head Pipe Plug

    1/4 Inch Square Head Pipe Plug

    TRAMEC SLOAN

    $6.14
    1/4 Inch Head Pipe Plug* High Quality Pipe Plug* 1/4 Inch* Sold Individually* Warranty On Square Head Pipe Plug Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    BP1094
    SKU:
    BP1094
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Product Type:
    Air, Electrical, & Safety
    $6.14
    Qty in Cart: 0
    Price:
    $6.14
    Subtotal:
  • Brass Street Elbow 45 Degree- 1/4 Inch

    Brass Street Elbow 45 Degree- 1/4 Inch

    PARTS DISTRIBUTING

    $5.09
    Brass Street Elbow 45 Degree- 1/4 Inch* High Quality Elbow* Brass* 1/4 Inch* 45 Degree* Sold Individually* Warranty On Elbows Against Defects In Workmanship & Material From Date Of Purchase*** High...
    BP1244
    SKU:
    BP1244
    Material Options:
    Brass
    Truck Class:
    Heavy Duty
    Diameter Options:
    1/4 Inch
    Ready To Ship:
    Yes
    Make:
    Universal Items
    $5.09
    Qty in Cart: 0
    Price:
    $5.09
    Subtotal:
  • Brass Long Nipple 1/4 X 2 Inch

    Brass Long Nipple 1/4 X 2 Inch

    PARTS DISTRIBUTING

    $3.05
    Brass Long Nipple 1/4 X 2 Inch* High Quality Nipple* Brass* 1/4 Inch X 2 Inch* Sold Individually* Warranty On Nipples Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    BP113420
    SKU:
    BP113420
    Truck Class:
    Heavy Duty
    Material Options:
    Brass
    Length Options:
    2 Inch
    Diameter Options:
    1/4 Inch
    Ready To Ship:
    Yes
    Make:
    Universal Items
    $3.05
    Qty in Cart: 0
    Price:
    $3.05
    Subtotal:
  • TPHD 3/8 Inch NPT Female 90 Degree Brass Elbow Pipe Fitting

    TPHD 3/8 Inch NPT Female 90 Degree Brass Elbow Pipe Fitting

    TPHD

    $9.75
    Brass Elbow Female 90 Degree 3/8 X 3/8 Inch W/ Threaded SealThis is a 3/8 inch NPT female 90-degree elbow pipe fitting made of durable brass. It's sold individually and designed to help you easily...
    BP1006
    SKU:
    BP1006
    Material Options:
    Brass
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Air, Electrical, & Safety
    Ready To Ship:
    Yes
    $9.75
    Qty in Cart: 0
    Price:
    $9.75
    Subtotal:
  • Brass Hose Fpt To Mpt Adapter- 1/2 X 3/8 Inch

    Brass Hose Fpt To Mpt Adapter- 1/2 X 3/8 Inch

    PARTS DISTRIBUTING

    $8.77
    Brass Hose Fpt To Mpt Adapter- 1/2 X 3/8 Inch* High Quality Hose Adapter* Brass* 1/2 Inch X 3/8 Inch* Sold Individually* Warranty On Hose Adapters Against Defects In Workmanship & Material From Date...
    BP12086
    SKU:
    BP12086
    Material Options:
    Brass
    Truck Class:
    Heavy Duty
    Ready To Ship:
    Yes
    Make:
    Universal Items
    $8.77
    Qty in Cart: 0
    Price:
    $8.77
    Subtotal:
  • 1/4 Inch Brass Pipe Cap- Hex

    1/4 Inch Brass Pipe Cap- Hex

    PARTS DISTRIBUTING

    $5.09
    1/4 Inch Brass Pipe Cap- Hex* High Quality Pipe Cap* Brass* 1/4 Inch* Sold Individually* Warranty On Pipe Caps Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    BP1084
    SKU:
    BP1084
    Material Options:
    Brass
    Truck Class:
    Heavy Duty
    Diameter Options:
    1/4 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $5.09
    Qty in Cart: 0
    Price:
    $5.09
    Subtotal:
  • Brass Street Elbow 45 Degree- 3/8 Inch

    Brass Street Elbow 45 Degree- 3/8 Inch

    PARTS DISTRIBUTING

    $12.00
    Brass Street Elbow 45 Degree- 3/8 Inch* High Quality Street Elbow* Brass* 3/8 Inch* 45 Degree* Sold Individually* Warranty On Elbows Against Defects In Workmanship & Material From Date Of Purchase***...
    BP1246
    SKU:
    BP1246
    Material Options:
    Brass
    Truck Class:
    Heavy Duty
    Diameter Options:
    3/8 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $12.00
    Qty in Cart: 0
    Price:
    $12.00
    Subtotal:
  • On Sale
    Limited Quantity Available
    20 Amp Blade Fuse 32V - Yellow 5 Pack

    20 Amp Blade Fuse 32V - Yellow 5 Pack

    AFTERMARKET

    Now: $1.76
    Was: $4.27
    Yellow Fuse Auto 20 AMP 32VDC Mini Blades* High Quality Fuse* Yellow* 20 Amp * Spade Type* 32 Volts* Sold Individually* Warranty On Fuses Against Defects In Workmanship & Material From Date Of...
    ATO20
    SKU:
    ATO20
    Truck Class:
    Heavy Duty
    Color:
    Yellow
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    Rating:
    20 Amps
    Ready To Ship:
    Yes
    Now: $1.76
    Was: $4.27
    Qty in Cart: 0
    Price:
    Now: $1.76
    Was: $4.27
    Subtotal:
  • Brass Reducer Fpt-Fpt Coupling - 1/2 X 1/4 Inch

    Brass Reducer Fpt-Fpt Coupling - 1/2 X 1/4 Inch

    PARTS DISTRIBUTING

    $7.93
    Brass Reducer Fpt-Fpt Coupling - 1/2 X 1/4 Inch* High Quality Reducer Coupling* Brass* 1/2 Inch X 1/4 Inch* Sold Individually* Warranty On Reducer Couplings Against Defects In Workmanship & Material...
    BP11984
    SKU:
    BP11984
    Material Options:
    Brass
    Truck Class:
    Heavy Duty
    Ready To Ship:
    Yes
    Make:
    Universal Items
    $7.93
    Qty in Cart: 0
    Price:
    $7.93
    Subtotal:
  • 1/4 Inch Brass Hex-Head Plug

    1/4 Inch Brass Hex-Head Plug

    TRAMEC SLOAN

    $4.07
    Brass Pipe Hex-Head Plug Fitting* High Quality Hex-Head Plug* Brass* Thread 1/4 Inch-18* Sold Individually* Warranty On Hex-Head Plugs Against Defects In Workmanship & Material From Date Of...
    BP1214
    SKU:
    BP1214
    Material Options:
    Brass
    Truck Class:
    Heavy Duty
    Diameter Options:
    1/4 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Product Type:
    Air, Electrical, & Safety
    $4.07
    Qty in Cart: 0
    Price:
    $4.07
    Subtotal:
  • Brass Pipe Nipple 1/2 X 2 Inch

    Brass Pipe Nipple 1/2 X 2 Inch

    PARTS DISTRIBUTING

    $16.31
    Brass Pipe Nipple 1/2 X 2 Inch* High Quality Pipe Nipple* Brass* 1/2 Inch x 2 Inch* Sold Individually* Warranty On Pipe Nipples Against Defects In Workmanship & Material From Date Of Purchase*** High...
    BP113820
    SKU:
    BP113820
    Truck Class:
    Heavy Duty
    Material Options:
    Brass
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $16.31
    Qty in Cart: 0
    Price:
    $16.31
    Subtotal:
  • Straight Flare Fitting 3/4 Inch - 16 Size 8

    Straight Flare Fitting 3/4 Inch - 16 Size 8

    AFTERMARKET

    $39.77
    Straight Flare Fitting 3/4 Inch - 16 Size 8* High Quality Straight Fitting* 3/4 Inch- 16* Sold Individually* Warranty On Straight Fittings Against Defects In Workmanship & Material From Date Of...
    92815IMP
    SKU:
    92815IMP
    Product Type:
    Engine Parts
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $39.77
    Qty in Cart: 0
    Price:
    $39.77
    Subtotal:
  • Total: items /

Adding your products to cart

Semi Truck Gladhands & Air Connections

A semi truck gladhand is the critical connection point between your tractor air lines and the trailer’s air-brake system. These heavy-duty couplers lock together with a rubber seal to hold air pressure securely. Our inventory helps you restore and replace your existing gladhand configuration when it’s cracked, leaking, corroded, or damaged. Semi Truck Gladhand Replacements: Replace worn or damaged tractor-trailer air couplers to restore a tight, reliable air connection. Service Gladhands: Blue service gladhands carry control air used to apply the trailer brakes during normal braking. Emergency Gladhands: Red emergency gladhands supply constant air pressure to the trailer and keep the emergency spring brakes released while driving. Gladhand Seals and Replacement Parts: Replace cracked, flattened, hardened, or leaking seals when the gladhand body and locking tabs remain in good condition. Air Lines with Gladhands: Find 2-in-1, 3-in-1, ABS, and power air lines to replace chafed, cracked, stretched, or worn tractor-trailer connections.

Signs of a Leaking Gladhand

Replace or inspect the gladhand when you notice hissing, air-pressure loss, frequent compressor cycling, slow air recovery, visible seal damage, or air leaking at the tractor-trailer connection.

Gladhand Seals vs. Complete Couplers

Replace the rubber seal when the coupler body is solid but the gasket is worn, cracked, flattened, or leaking. Replace the complete gladhand when the body, locking tabs, threads, or sealing surface is damaged or badly corroded.

Individual Gladhands vs. Complete Air-Line Assemblies

Individual gladhands make sense when your hoses remain in good condition and only the coupler needs replacement. Complete air-line assemblies replace the hoses and connections together. Choose them when lines are cracked, weathered, stretched, damaged, or due for replacement.

Air Brake Valves & Controls

We stock tractor-trailer air-brake protection valves, quick-release valves, emergency relay valves, and MV3 dash valves. Replace worn PP5 and PPDC control valves, trailer brake valves, and related spring brake components to restore proper air-brake control.

Air System Maintenance & Repair Parts

Maintain and repair your air system with air dryers, air solenoid valves, air hoses, fittings, and air tank hardware. Emergency air-brake and in-cab air-line repair kits also help address damaged lines and fittings during roadside repairs.

Trailer ABS & Electrical Connections

Keep tractor-trailer air and electrical connections organized with ABS cables, 7-way electrical cords, wrapped hose assemblies, air-line boxes, and pogo sticks. Replace worn or damaged connection hardware to protect air lines, power cords, and ABS wiring from dragging, chafing, and road damage.

Frequently Asked Questions About Semi-Truck Safety, Air & Electrical

What air pressure switches and valves are compatible with my specific truck model?

Compatibility depends on your truck's make, model, and year. Most Freightliner Cascadia models (2008-2023) use standard 1/4" NPT air pressure switches rated at 90-120 PSI. Peterbilt 579/389 models typically require 1/8" NPT connections. Kenworth T680/W900 models often use proprietary valve configurations. Always check your truck's service manual for exact specifications, or contact our technical support team with your OEM for precise matching.

How difficult is it to install safety lighting and electrical components myself?

Installation difficulty varies by component. LED marker lights and basic warning lights typically require 30-60 minutes with basic tools and can be DIY-installed by following color-coded wiring (white=ground, black=power). Air horns and pressure gauges require air line connections and may need professional installation to avoid leaks. Complex items like backup cameras or multi-circuit lighting systems often require 2-4 hours and intermediate electrical knowledge. We provide detailed installation guides with each product, and most customers report successful DIY installation for basic components.

What's the actual lifespan of LED safety lights versus traditional bulbs in real-world conditions?

Based on customer feedback and warranty data, quality LED safety lights last 30,000-50,000 hours of operation, which translates to 5-8 years of typical commercial use. Traditional incandescent bulbs average 1,000-2,000 hours (6-12 months). LEDs handle vibration better and maintain brightness longer. However, cheaper LED units may fail within 1-2 years due to poor heat dissipation or inadequate weatherproofing. We recommend DOT-certified LEDs with aluminum housings and IP67 or higher waterproof ratings for maximum longevity.

Which air brake components fail most frequently and what are the warning signs?

The most common failures occur in air dryers (every 2-3 years), pressure protection valves (3-4 years), and gladhand seals (annually). Warning signs include: air dryer constantly purging or not purging at all, slow air pressure build-up taking over 3 minutes to reach 90 PSI, air leaks audible when brakes are released, and moisture in air tanks. Quick-release valves often stick in winter conditions. Regular maintenance with quality replacement parts can extend component life by 30-50%.

What gauge and type of wiring should I use for adding auxiliary lights and accessories?

Wire gauge depends on the accessory's amperage draw and cable run length. For LED marker lights (0.5-2 amps), use 18-16 AWG wire for runs under 15 feet. Work lights and fog lights (3-10 amps) require 14-12 AWG wire. High-powered LED light bars (15-30 amps) need 10 AWG wire with inline fuses. Always use automotive-grade stranded copper wire with SAE J1128 rating for flexibility and heat resistance. Install proper fuses or circuit breakers rated at 125% of the accessory's amp draw. Avoid household solid-core wire as it becomes brittle and cracks from vibration.


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