Working on this vehicle? Write estimates, send inspections & invoice customers from your phone.

    Start 14-Day Free Trial
    ← All vehicle specs
    Towing Capacity & Payload

    2014 Kenworth W900 Towing Capacity & Payload

    AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.

    Working on this 2014 Kenworth W900? Run just this one job through Repairius.

    No big switch. Write the estimate, text it for approval, and get paid on your phone. Keep everything else the way it is.

    14-day free trial · credit card required · cancel anytime

    2014 Kenworth W900 Towing Capacity & Payload

    The 2014 Kenworth W900, being a heavy-duty Class 8 commercial truck, is designed for massive towing jobs, with its towing capacity primarily dictated by its specific configuration, engine, and axle ratios, allowing it to tow tens of thousands of pounds, often exceeding 100,000 lbs GCWR.

    Quick Answer

    • Max Tow Capacity: Varies significantly based on configuration, often 100,000 lbs+ (GCWR)
    • Max Payload: Varies significantly based on configuration; chassis weight and axle ratings are key determinants.
    • GVWR: Typically ranges from 33,000 lbs to over 60,000 lbs, depending on axle configuration.
    • GCWR: Highly variable, often 80,000 lbs to 140,000 lbs or more depending on engine, transmission, and axle specifications.
    • Curb Weight: Can range from approximately 18,000 lbs to 25,000 lbs or more for the tractor unit alone, depending on specification.
    • Hitch Class: Fifth-wheel or gooseneck kingpin/coupler is standard for tractor configurations. Conventional hitch class is not applicable for this vehicle in its primary commercial role.

    Tow Ratings by Engine & Trim

    For a truck of the Kenworth W900's caliber, "trim" as seen in light-duty vehicles doesn't apply in the same way. Instead, towing capacity is determined by a combination of engine, transmission, axle ratios, suspension, and overall chassis configuration. The W900 is a highly customizable platform, meaning a precise maximum tow capacity for a generic "trim" is not feasible. Owners should always refer to their specific truck's Gross Combination Weight Rating (GCWR) plate. The figures below are representative given common configurations.

    EngineDrivetrainConfiguration ExampleMax GCWR (lbs)Max Payload (lbs)
    Cummins ISX15 (485hp)6x4 (Tandem Axle)Day Cab, Standard Wheelbase80,000 - 100,000+Varies by chassis weight/spec
    Cummins ISX15 (550hp)6x4 (Tandem Axle)Sleeper, Long Wheelbase100,000 - 120,000+Varies by chassis weight/spec
    PACCAR MX-13 (455hp)6x4 (Tandem Axle)Day Cab, Standard Wheelbase80,000 - 100,000+Varies by chassis weight/spec
    PACCAR MX-13 (500hp)6x4 (Tandem Axle)Sleeper, Long Wheelbase100,000 - 120,000+Varies by chassis weight/spec

    Note: "Payload" here refers to the weight the tractor can carry, including a portion of the trailer's kingpin weight if it's a fifth-wheel/gooseneck setup. It is heavily dependent on specific axle ratings and empty weight. For SAE J2807 ratings, these standards typically apply to light-duty and some medium-duty trucks. Heavy-duty commercial trucks like the W900 operate under different regulatory standards (e.g., DOT, FMCSA) for weight ratings, which are specific to the vehicle's certified GVWR and GCWR, often determined by the manufacturer and subject to federal and state regulations.

    Tow Package Contents

    For a heavy-duty commercial truck like the Kenworth W900, "tow package" elements are typically integrated as standard heavy-duty components rather than optional add-ons as with consumer-grade trucks. Key features critical for towing are inherent to its design:

    • Heavy-Duty Transmission Cooling: Standard given the demands of commercial hauling. Transmissions are built with substantial cooling capabilities.
    • Integrated Trailer Brake Controller: While commercial trucks often use air brakes for both tractor and trailer, an "integrated brake controller" in the light-duty sense doesn

    Need service on your Kenworth W900?

    Request service from shops in your area.

    More specs for the 2014 Kenworth W900

    Oil Capacity & Filter

    Capacity, weight, filter PN, drain plug torque, change interval.

    Fluid Type Specs

    Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.

    Coolant Capacity & Type

    Total system capacity, OEM coolant spec, flush interval, bleed tips.

    Transmission Fluid & Service

    Trans model, fluid spec, capacity, filter PN, service interval.

    Torque Specifications

    Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.

    Brake Pad & Rotor Specs

    Pad PNs, rotor size, min thickness, caliper torque.

    Tire Size & Pressure

    OEM size, cold psi, bolt pattern, wheel size, TPMS.

    Battery Size & Group

    Group size, CCA, AGM/flooded, dimensions, reset note.

    A/C Refrigerant & Oil

    R-134a or R-1234yf, charge oz, PAG oil spec.

    Bulb Sizes (Headlight, Tail, Fog)

    Headlight, fog, tail, turn, reverse, interior.

    Factory Maintenance Schedule

    Service intervals by mileage, severe-duty notes, known issues.

    Fuse Box Diagram & Amperage

    Fuse box locations, layout, amps, and what each fuse controls.

    Serpentine Belt Routing & Length

    Belt routing, length, rib count, OEM + aftermarket PNs.

    Wheel Alignment Specifications

    Camber, caster, toe ranges (front & rear), adjustability notes.

    Paint Color Codes

    All factory colors with paint codes, sticker location, touch-up tips.

    Wiper Blade Sizes

    Driver/passenger/rear blade size, attachment, OEM + cross-refs.

    Spark Plug Type & Gap

    Plug PN, gap, torque, interval by engine.

    Transmission & Axle Gear Ratios

    Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.

    Key Fob Programming

    DIY programming steps, FCC ID, fob PN, battery, transponder.

    Same spec — other model years

    Maintenance & repair guides

    Browse by make

    Running an auto or diesel repair shop?

    Compare Repairius to the shop software you're paying for

    $99.99/month (first location included), unlimited users, 14-day free trial.

    Driving or Managing a Fleet?

    Use Dispatchtool for truck navigation, driver communication, dispatching, and fleet management.

    Visit Dispatchtool
    Run your shop from estimate to payment

    Don't overhaul your shop. Test Repairius on your next job.

    Repairius keeps estimates, work orders, real-time job assignment, customer and vehicle history, inventory, and payments in one place — on desktop and in your pocket.

    14-day free trial · credit card required · cancel anytime

    Not a mechanic? Send Repairius to your shop — they can run estimates, jobs, and invoices in one place.

    Know someone who needs this?

    Share this page with a mechanic, a shop owner, or a friend working on the same problem.

    Know a mechanic or shop owner Repairius could help?

    Send them Repairius in one tap. Free listing, online booking, reminders and the full shop workflow.

    Text them Email