• Semi Truck Air Brake Knob Set (Parking + Trailer) – Yellow/Red 5/8" – Replaces Bendix 298818/298817 - RoadWest Truck Parts - B0FYFRVGMG - High Soar
  • Semi Truck Air Brake Knob Set (Parking + Trailer) – Yellow/Red 5/8" – Replaces Bendix 298818/298817 - RoadWest Truck Parts - B0FYFRVGMG - High Soar
  • Semi Truck Air Brake Knob Set (Parking + Trailer) – Yellow/Red 5/8" – Replaces Bendix 298818/298817 - RoadWest Truck Parts - B0FYFRVGMG - High Soar
  • Semi Truck Air Brake Knob Set (Parking + Trailer) – Yellow/Red 5/8" – Replaces Bendix 298818/298817 - RoadWest Truck Parts - B0FYFRVGMG - High Soar
  • Semi Truck Air Brake Knob Set (Parking + Trailer) – Yellow/Red 5/8" – Replaces Bendix 298818/298817 - RoadWest Truck Parts - B0FYFRVGMG - High Soar

Semi Truck Air Brake Knob Set (Parking + Trailer) – Yellow/Red 5/8" – Replaces Bendix 298818/298817

Vehicle Fitment
Universal
$10.44 USD
$10.44 USD $10.99 USD
QC VERIFIED Built for Truckers. We stock it, inspect it, and verify fitment - so you get the right part first time, for less.
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DESCRIPTION

Up to 5% off

Restore safe, precise brake control in your cab with the ROADWEST 298818N Yellow Parking Brake & 298817N Red Air Brake Knobs Set. Designed as a direct replacement for Bendix push-pull brake valve knobs, this kit helps you easily identify and operate both the tractor air brake and trailer parking brake functions.

This set includes one red service brake valve knob and one yellow parking brake knob, each engineered with a standard 5/8" threaded connection for fast installation on most semi truck dash-mounted push-pull valves. Lightweight yet durable plastic construction is built to handle daily use in fleet and owner-operator environments.

Engineered for compatibility with major heavy-duty brands including Peterbilt, Kenworth, Volvo, and Western Star, these knobs are an ideal choice when your factory knobs are faded, cracked, or missing. Clear red and yellow coloring helps maintain proper DOT-style identification for intuitive use.

  • Direct Bendix replacement – Red air brake knob replaces Bendix 298817, 298817N, TR298817, V118490, 25110978, 79101-3201.
  • Yellow parking brake knob replaces Bendix 298818, 298818N, TR298818, V1118489, 25110977.
  • Standard 5/8" thread size for quick, secure installation on most threaded push-pull valves.
  • Compatible with major truck brands such as Peterbilt, Kenworth, Volvo, and Western Star (check thread style before purchase).
  • Durable molded plastic – corrosion-resistant, lightweight, and designed to withstand daily cab use.
  • Clear color coding – red knob for trailer/service brake, yellow knob for parking brake, following common industry convention.
  • Complete 2-piece kit – includes both knobs to refresh your dash controls at the same time.
Brand ROADWEST
Product Type Semi Truck Air & Parking Brake Control Knob Set
Applications Semi Trucks, Tractor-Trailers, Heavy-Duty Trucks with Push-Pull Brake Valves
Knob Colors Yellow (Parking Brake) & Red (Air / Trailer Brake)
Thread Size Standard 5/8" (Approx. 0.62")
Handle Type Knob – Push-Pull Valve Control
Material Engineered Plastic
Cross Reference – Red Knob Bendix 298817; 298817N; TR298817; V118490; 25110978; 79101-3201
Cross Reference – Yellow Knob Bendix 298818; 298818N; TR298818; V1118489; 25110977
Product Dimensions Approx. 4" L × 5" W (per set)
Included Components 1 × Red Air Brake Valve Knob; 1 × Yellow Parking Brake Knob
Fit Type Threaded Push-Pull Valve – Universal 5/8" Thread (Verify Before Purchase)
Manufacturer ROADWEST

Shipping Policy

Most ROADWEST orders are processed from our U.S. warehouses within 1–2 business days (Monday–Friday, excluding major U.S. holidays).

We currently ship within the United States only and do not deliver to P.O. Boxes, APO/FPO/DPO addresses, or international addresses.

  • Shipping Area: United States only
  • Process Time: In-stock items are usually processed within 1–2 business days (Mon–Fri, excluding major U.S. holidays)
  • Delivery Method: Standard ground for most items; LTL freight for oversized or extra-heavy parts
  • Delivery Time: After shipment, delivery typically takes 3–7 business days, depending on item size, destination, and carrier performance
  • Returns: Most unused items may be returned within 30 days of delivery, subject to inspection and our return guidelines

For full details, please review our Shipping Policy and Easy Return & Refund Policy before placing your order.

Warranty

ROADWEST stands behind the parts we sell. Unless otherwise stated on the product page, your purchase is covered by a 1-Year Limited Warranty against manufacturing defects under normal use.

What’s covered

  • Defects in materials or workmanship
  • Premature failure caused by factory-related issues

What’s not covered

  • Normal wear and tear, cosmetic aging, corrosion from environment/road salt
  • Damage from improper installation, incorrect wiring, modifications, misuse, or accidents
  • Labor costs (installation/removal), downtime, towing, or other indirect costs

How to file a claim

Contact us with:

  • Order number
  • Product name / SKU
  • Clear photos or a short video showing the issue

If approved, ROADWEST will provide an appropriate resolution (replacement parts, replacement unit, or refund/credit).

Please do not send items back without return authorization.

For more details, see our Shipping Policy, Easy Return & Refund Policy, and Warranty pages.
Semi Truck Air Brake Knob Set (Parking + Trailer) – Yellow/Red 5/8" – Replaces Bendix 298818/298817

$10.44 USD