Kenworth Air Spring Bag – Replaces W01-358-9541 / W01-358-9547 (C81-1005/C81-1004)
Warranty Information
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.
Shipping & Returns
Most ROADWEST orders ship from our U.S. warehouses within 1–2 business days. Standard ground delivery in the contiguous United States is typically 1–3 business days, with freight service used for oversized or extra-heavy parts.
- Shipping area: United States only (no PO Boxes or international addresses).
- Processing time: In-stock items usually ship within 1–2 business days, Mon–Fri.
- Delivery: Standard ground or LTL freight depending on size and weight.
- Returns: Most unused items may be returned within 30 days of delivery, subject to inspection and our return guidelines.
- Costs: Original and return shipping are generally the customer’s responsibility, unless the issue is caused by ROADWEST (wrong item, damaged on arrival, etc.).
For full details, please review our Shipping Policy and Easy Return & Refund Policy before placing your order.
Restore ride quality and suspension performance on your Kenworth with this High Soar Air Spring Bag, engineered as a heavy duty replacement for popular AirGlide suspension applications. Designed to work with Kenworth C81-1005 / C81-1004 assemblies and their common cross references, it helps support heavy loads while improving comfort and stability on long-haul runs.
This suspension air bag is built with imported high-density rubber and a reinforced structure that goes beyond typical aftermarket standards. The durable construction delivers excellent load-bearing capacity, resists fatigue and cracking, and stands up to demanding fleet and owner-operator use.
As a direct replacement for several OEM and aftermarket numbers, this air spring bag is designed for quick service and minimal downtime. Simply match your existing part number, swap the old leaking or sagging bag, and restore proper ride height and suspension response.
- Direct replacement for Kenworth air spring assemblies – replaces Kenworth C81-1005 / C81-1004 on AirGlide suspensions.
- Cross reference numbers – interchangeable with Firestone W01-358-9541, W01-358-9547 and Contitech 9 9-10 P 861 (check all dimensions and specs before purchase).
- Premium air ride performance – high-density rubber provides better durability and load performance than many standard air suspensions.
- Safety & comfort – air spring bags absorb vibration, reduce harsh impacts and help improve braking stability for a smoother, safer ride.
- Easy installation – designed as a bolt-on replacement for the original air bag when the correct cross reference is matched.
- Quality backed – suitable for commercial duty use when installed and maintained properly.
How to confirm fitment:
- Locate the part number on your original air spring or suspension documentation.
- Confirm it matches W01-358-9541, W01-358-9547, C81-1005, C81-1004 or Contitech 9 9-10 P 861.
- Verify that your truck uses an AirGlide-style Kenworth suspension in the affected position.
- If unsure, consult your mechanic or parts manager before ordering.
| Brand | High Soar |
|---|---|
| Application | Kenworth trucks with C81-1005 / C81-1004 AirGlide suspension |
| Cross Reference | W01-358-9541, W01-358-9547, Contitech 9 9-10 P 861, Kenworth C81-1005, C81-1004 |
| Suspension Type | Heavy Duty Air Suspension – Axle / Suspension Air Spring |
| Material | High-density rubber air bladder with reinforced metal components |
| Position | Suspension Air Spring – Check vehicle suspension layout |
| Fit Type | Vehicle Specific Fit – Match by OE / cross reference number |
| Certification / Quality | Meets OEM performance standards for heavy duty truck air suspension |
| Included Components | 1 × Air Spring Bag (replacement for listed cross reference numbers) |
| Recommended Use | Replacement for leaking, cracked or sagging air suspension bags |
If you are unsure about compatibility, please verify your original air spring number or consult your technician before purchasing.