Peterbilt 389 Dash Knobs

When it comes to Peterbilt 389 dash knobs, truck drivers have a range of options to customize their interior. At 4 State Trucks, you can explore an assortment of knobs designed to enhance both the appearance and functionality of your Peterbilt 389 dash. From traditional chrome knobs that exude a classic aesthetic to colored or textured knobs for a more contemporary look, there's something to suit every preference. Additionally, ergonomic designs provide improved grip and ease of use, while innovative options feature LED lighting for enhanced visibility, particularly in low-light conditions. With a diverse selection of Peterbilt 389 dash knobs available, you'll find the perfect combination of style and practicality to elevate your driving experience.

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Chrome Air Valve Knob W/ Sticker Pack

UNITED PACIFIC

MSRP:

$13.79

Was:

Give a custom touch to your interior with this chrome air valve knob with a sticker pack. Designed as a universal heavy-duty truck accessory, this high-quality aftermarket air valve knob is made from...

PPR_204863

SKU:

PPR_204863

Truck Class:

Universal

Material Options:

Aluminum

Make:

Universal Items

Finish Options:

Chrome-Plated

Truck Class:

Heavy Duty

Product Type:

Interior

Ready To Ship:

Yes

MSRP:

$13.79

Was:

Qty in Cart: 0

Price:

MSRP:

$13.79

Was:

Subtotal:
FREE SHIPPING OVER $249

Emergency Aluminum Air Valve Knob Sticker

UNITED PACIFIC

MSRP:

$3.35

Was:

Refresh the look of your air brake controls with this Emergency Aluminum Air Valve Knob Sticker. Available in purple, red, or silver, this aluminum sticker features the classic "Emergency" script to...

PPR_204429

SKU:

PPR_204429

Truck Class:

Universal

Shape Options:

Round

Make:

Universal Items

Material Options:

Aluminum

Truck Class:

Heavy Duty

Product Type:

Interior

MSRP:

$3.35

Was:

Qty in Cart: 0

Price:

MSRP:

$3.35

Was:

Subtotal:
3 Inch Chrome-Plated Aluminum Air Valve Knob With Flag Glossy Sticker

UNITED PACIFIC

MSRP:

$30.80

Was:

Add a this 3-Inch Chrome-Plated Aluminum Air Valve Knob featuring a high-gloss flag sticker to your rig. Designed for universal fitment on multiple trucks and trailers, this screw-on air valve knob...

PPR_204417

SKU:

PPR_204417

Truck Class:

Universal

Style Options:

Thread On

Material Options:

Aluminum

Make:

Universal Items

Finish Options:

Chrome-Plated

Truck Class:

Heavy Duty

Product Type:

Interior

MSRP:

$30.80

Was:

Qty in Cart: 0

Price:

MSRP:

$30.80

Was:

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Chrome-Plated Aluminum Air Valve Knob With Flag Glossy Sticker

UNITED PACIFIC

MSRP:

Now: $14.45 - $15.39

Was:

Maximize your interior with this Chrome-Plated Aluminum Air Valve Knob with Flag Glossy Sticker. Built from chrome-plated aluminum, this screw-on air valve knob offers a polished finish. It features...

PPR_204416

SKU:

PPR_204416

Truck Class:

Universal

Style Options:

Thread On

Material Options:

Aluminum

Make:

Universal Items

Finish Options:

Chrome-Plated

Truck Class:

Heavy Duty

Product Type:

Interior

MSRP:

Now: $14.45 - $15.39

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $14.45 - $15.39

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Subtotal:
On Sale

Limited Quantity Available

Chrome-Plated Aluminum Deluxe Air Valve Knob With Flag Glossy Sticker

UNITED PACIFIC

MSRP:

Now: $13.41 - $25.34

Was: $24.84

This Chrome-Plated Aluminum Deluxe Air Valve Knob With Flag Glossy Sticker is built from chrome-plated aluminum, it offers a durable, polished finish that adds a clean, customized look. This air...

PPR_204415

SKU:

PPR_204415

Truck Class:

Universal

Style Options:

Thread On

Material Options:

Aluminum

Make:

Universal Items

Finish Options:

Chrome-Plated

Truck Class:

Heavy Duty

Product Type:

Interior

Ready To Ship:

Yes

MSRP:

Now: $13.41 - $25.34

Was: $24.84

Qty in Cart: 0

Price:

MSRP:

Now: $13.41 - $25.34

Was: $24.84

Subtotal:
FREE SHIPPING OVER $249

Small Chrome Deluxe Dash Knob Topped W/ Crystal Option - Hex Screw Mount

UNITED PACIFIC

MSRP:

Now: $11.90 - $14.33

Was:

Elevage your truck with the Small Chrome Deluxe Dash Knob topped with a crystal option and hex screw mount. Built from chrome-plated aluminum, this aftermarket dash knob is designed for universal...

PPR_204414

SKU:

PPR_204414

Truck Class:

Universal

Style Options:

Thread On

Material Options:

Aluminum

Make:

Universal Items

Finish Options:

Chrome-Plated

Truck Class:

Heavy Duty

Product Type:

Interior

MSRP:

Now: $11.90 - $14.33

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $11.90 - $14.33

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Skull Dagger Air Valve Knob

UNITED PACIFIC

MSRP:

Now: $21.74 - $25.11

Was:

Give a bold touch to your interior with the Skull Dagger Air Valve Knob. Designed with a distinctive dagger shape and detailed three-skull head, this screw-on air valve knob is available in either an...

PPR_204413

SKU:

PPR_204413

Truck Class:

Universal

Material Options:

Aluminum

Make:

Universal Items

Truck Class:

Heavy Duty

Product Type:

Interior

MSRP:

Now: $21.74 - $25.11

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $21.74 - $25.11

Was:

Subtotal:
FREE SHIPPING OVER $249

Screw On Skull Dash Knob

UNITED PACIFIC

MSRP:

Now: $12.01 - $22.65

Was:

Add a bold custom accent to your interior with this screw-on skull dash knob. Crafted from chrome-plated aluminum, it features a detailed skull design that brings distinctive style to dashboard...

PPR_204381

SKU:

PPR_204381

Truck Class:

Universal

Style Options:

Thread On

Make:

Universal Items

Truck Class:

Heavy Duty

Product Type:

Interior

Ready To Ship:

Yes

MSRP:

Now: $12.01 - $22.65

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $12.01 - $22.65

Was:

Subtotal:
FREE SHIPPING OVER $249

Large Chrome Screw On Trailer Air Valve Knob W/ Aluminum Sticker

UNITED PACIFIC

MSRP:

Now: $13.25 - $17.31

Was:

Revolutionize your interior setup with this large chrome screw-on trailer air valve knob featuring an aluminum sticker. Built from chrome-plated aluminum, this aftermarket replacement knob is...

PPR_204380

SKU:

PPR_204380

Truck Class:

Universal

Style Options:

Thread On

Material Options:

Aluminum

Make:

Universal Items

Truck Class:

Heavy Duty

Product Type:

Interior

Ready To Ship:

Yes

MSRP:

Now: $13.25 - $17.31

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $13.25 - $17.31

Was:

Subtotal:
FREE SHIPPING OVER $249

Limited Quantity Available

Military Medallion Air Valve Knob

UNITED PACIFIC

MSRP:

Now: $15.91 - $39.80

Was:

Add a military-inspired accent to your interior with this military medallion air valve knob. Designed with a chrome-plated aluminum body, this aftermarket replacement knob features a 1-3/4 inch round...

PPR_204378

SKU:

PPR_204378

Truck Class:

Universal

Make:

Universal Items

Material Options:

Aluminum

Truck Class:

Heavy Duty

Product Type:

Interior

Ready To Ship:

Yes

MSRP:

Now: $15.91 - $39.80

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $15.91 - $39.80

Was:

Subtotal:
FREE SHIPPING OVER $249

Painted Aluminum Air Brake Knob, Screw On Style W/ Stainless Tractor Or Trailer Plaque

UNITED PACIFIC

MSRP:

Now: $25.10 - $33.54

Was:

Maximize your interior controls with this painted aluminum screw-on air brake knob featuring a stainless tractor or trailer plaque. Designed for universal applications, this aftermarket replacement...

PPR_204377

SKU:

PPR_204377

Truck Class:

Universal

Style Options:

Thread On

Material Options:

Aluminum

Make:

Universal Items

Truck Class:

Heavy Duty

Product Type:

Interior

MSRP:

Now: $25.10 - $33.54

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $25.10 - $33.54

Was:

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ShifTopperz Colored Brake Knob For Threaded Dash Air Brake Valve

TWISTED SHIFTERZ

MSRP:

Now: $44.87 - $45.77

Was:

Add a bold custom touch to your interior with the Colored Brake Knob for Threaded Dash Air Brake Valve. Designed for universal truck applications, this aftermarket brake knob is built for threaded...

PPR_204328

SKU:

PPR_204328

Truck Class:

Universal

Style Options:

Solid

Shape Options:

Round

Make:

Universal Items

Truck Class:

Heavy Duty

Product Type:

Interior

MSRP:

Now: $44.87 - $45.77

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $44.87 - $45.77

Was:

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Painted Steering Wheel Horn Bezels For Steering Wheel With 3 Hole Hub Adapter

UNITED PACIFIC

MSRP:

Now: $40.31 - $44.58

Was:

Upgrade your interior styling with painted steering wheel horn bezels designed for steering wheels with a 3-hole hub adapter. These aftermarket horn bezels are built from durable plastic and are...

PPR_204112

SKU:

PPR_204112

Truck Class:

Universal

Make:

Universal Items

Truck Class:

Heavy Duty

Product Type:

Interior

Ready To Ship:

Yes

MSRP:

Now: $40.31 - $44.58

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $40.31 - $44.58

Was:

Subtotal:
FREE SHIPPING OVER $249

Chrome Steering Wheel Spinner With Die-Cast Clamp

UNITED PACIFIC

MSRP:

Now: $10.01 - $18.04

Was:

Maximize your interior setup with this steering wheel spinner featuring a chrome die-cast clamp and smooth black knob design. The chrome-plated die-cast clamp provides a polished appearance while...

PPR_203319

SKU:

PPR_203319

Truck Class:

Universal

Make:

Universal Items

Truck Class:

Heavy Duty

Product Type:

Interior

Ready To Ship:

Yes

MSRP:

Now: $10.01 - $18.04

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $10.01 - $18.04

Was:

Subtotal:
2.125 Inch Chrome Lady Brake Knob For Threaded Dash Air Brake Valve

TWISTED SHIFTERZ

MSRP:

$68.99

Was:

Upgrade your interior with the 2.125-inch Chrome Lady Brake Knob. This aftermarket knob features a polished chrome finish that adds a clean, reflective accent to the dash while providing a tactile...

PPR_203153

SKU:

PPR_203153

Location:

Made In USA

Truck Class:

Universal

Shape Options:

Round

Make:

Universal Items

Truck Class:

Heavy Duty

Product Type:

Interior

Ready To Ship:

Yes

MSRP:

$68.99

Was:

Qty in Cart: 0

Price:

MSRP:

$68.99

Was:

Subtotal:
On Sale

Limited Quantity Available

FREE SHIPPING OVER $249

Painted Deluxe Aluminum Screw On Brake Knob For Tractor-Trailer Applications

UNITED PACIFIC

MSRP:

Now: $18.25 - $46.67

Was: $28.07

Take your interior to the next level with a painted deluxe aluminum screw-on brake knob designed for tractor and trailer air valve applications. This style of knob is built from durable aluminum and...

PPR_203134

SKU:

PPR_203134

Truck Class:

Universal

Make:

Universal Items

Material Options:

Aluminum

Truck Class:

Heavy Duty

Product Type:

Interior

Ready To Ship:

Yes

MSRP:

Now: $18.25 - $46.67

Was: $28.07

Qty in Cart: 0

Price:

MSRP:

Now: $18.25 - $46.67

Was: $28.07

Subtotal:
Electric Yellow 18 Inch Steering Wheel Kit With Matching Shifter Accessories & Dash Knobs

UNITED PACIFIC

MSRP:

Now: $368.99 - $377.99

Was:

Upgrade your truck's interior with the electric yellow 18-inch steering wheel kit. This kit features an 18-inch 4-spoke chrome steering wheel with a bold electric yellow finish, paired with matching...

PPR_202941

SKU:

PPR_202941

Truck Class:

Universal

Color:

Yellow

Height Options:

18 Inch

Make:

Universal Items

Truck Class:

Heavy Duty

Product Type:

Interior

MSRP:

Now: $368.99 - $377.99

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $368.99 - $377.99

Was:

Subtotal:
Cadmium Orange 18 Inch Steering Wheel Kit With Matching Shifter Accessories & Dash Knobs

UNITED PACIFIC

MSRP:

Now: $368.99 - $377.99

Was:

This Cadmium Orange 18 Inch Steering Wheel Kit with Matching Shifter Accessories and Dash Knobs is an interior upgrade. The kit includes an 18-inch 4 slotted chrome spoke steering wheel wrapped in...

PPR_202939

SKU:

PPR_202939

Truck Class:

Universal

Color:

Orange

Height Options:

18 Inch

Make:

Universal Items

Truck Class:

Heavy Duty

Product Type:

Interior

MSRP:

Now: $368.99 - $377.99

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $368.99 - $377.99

Was:

Subtotal:
On Sale

Limited Quantity Available

FREE SHIPPING OVER $249

Sloped Shift Knob For 13/15/18 Speed Transmission - Painted Color Options

UNITED PACIFIC

MSRP:

Now: $24.31 - $43.49

Was: $39.52

Optimize your cab with this gearshift knob made with a smooth finish and a standard 1/2?13 brass threaded insert, this sloped knob includes a jam nut and is intended for use with 9, 10, 13, 15, and...

PPR_202659

SKU:

PPR_202659

Truck Class:

Universal

Material Options:

Plastic/Poly

Make:

Universal Items

Truck Class:

Heavy Duty

Product Type:

Interior

Ready To Ship:

Yes

MSRP:

Now: $24.31 - $43.49

Was: $39.52

Qty in Cart: 0

Price:

MSRP:

Now: $24.31 - $43.49

Was: $39.52

Subtotal:
2.125 Inch Round Black Shift Knob W/ Checkered Flags

TWISTED SHIFTERZ

MSRP:

Now: $45.77 - $421.99

Was:

Enhance your truck with the 2.125?inch Round Black Shift Knob with Checkered Flags, an interior upgrade designed for heavy?duty trucks with 9?, 10?, 13?, 15?, or 18?speed manual transmissions...

PPR_202640

SKU:

PPR_202640

Location:

Made In USA

Truck Class:

Universal

Color:

Black

Shape Options:

Round

Make:

Universal Items

Truck Class:

Heavy Duty

Product Type:

Interior

MSRP:

Now: $45.77 - $421.99

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $45.77 - $421.99

Was:

Subtotal:

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Your Peterbilt 389 is built to work hard—but that doesn’t mean the cab can’t look sharp too. Swap out those factory dash knobs with bold, custom options that show off your personality and make everyday controls more enjoyable to use.

Unique Dash Knob Styles to Customize Your Pete 389

We’ve got unique Peterbilt brake knobs, air valve knobs, wiper/washer knobs, HVAC controls, or rocker switches. Mix and match knobs with your existing Peterbilt 389 gauge styles or your switch trim and ID labels. - Choose your finish: Chrome, wood grain, crystal-clear, or sticker-style—whatever fits your vibe. - Fits right in: Designed to match your dash trim layout and fit Peterbilt 389 models. - Built tough: These knobs aren’t just for looks—each one is made from heavy-duty materials built for the road. - Easy install: Most knobs twist right on—no tools or wiring needed.

Ideal Fit

- Semi truck air valve knobs - Tractor trailer dash controls - Air brake valve knobs - Custom air brake knobs for show trucks or daily drivers
Whether you’re going full custom or just freshening up your interior, our Peterbilt 389 dash knobs let you take control—in style. Shop now and find the right knobs to make your cab as unique as your rig.

Frequently Asked Questions About Peterbilt 389 Dash Knobs

What are Peterbilt 389 dash knobs used for?

Dash knobs are the small control knobs mounted on the dashboard that operate functions such as headlight switches, dimmer controls, wiper controls, heater and defroster settings, and other dash-mounted switches. They are often replaced when the original knob cracks, fades, or breaks off from wear.

Will these knobs fit my Peterbilt 389 without modification?

Most dash knobs in this category are designed to match the factory fitment for Peterbilt 389 models, but knob shaft sizes and mounting styles can vary depending on the model year and which specific switch or control they are paired with. Check the listed shaft diameter, spline count, or attachment style against your existing knob before ordering to ensure a proper fit.

What materials and finishes are available?

Dash knobs are commonly available in chrome-plated plastic, billet aluminum, and chrome-plated metal options. Some are offered with textured or knurled grips for easier handling, while others include a smooth, polished finish for a factory-matched or upgraded appearance. Choose a finish that matches the rest of your interior trim for a consistent look.

How do I install a replacement dash knob?

Installation is typically straightforward. Most knobs either press onto a splined shaft, thread on, or are secured with a small set screw or retaining clip. Remove the old or damaged knob by gently pulling, unscrewing, or loosening the set screw, then align and press or screw the new knob into place. If your knob uses a set screw, a small hex or Allen wrench is usually all that is needed.

Will the printed labels or symbols wear off over time?

Knobs with printed or engraved labels can fade or wear with frequent use and sun exposure, especially on plastic knobs. Metal or billet aluminum knobs with engraved rather than printed markings tend to hold up better over time. If you want long-term legibility, look for knobs described as laser-engraved or debossed rather than surface-printed.