2019 Freightliner Cascadia: Battery Size & Specs
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Quick answer: 2019 Freightliner Cascadia Battery
- BCI Group Size: Group 31
- Cold Cranking Amps (CCA): 750–1000 CCA per battery
- Reserve Capacity (RC): 150–220 minutes per battery
- AGM vs. Flooded: Both AGM and flooded deep-cycle batteries are used. AGM is recommended for hotel loads.
- Terminal Layout: Dual SAE posts (top post)
- Physical Dimensions (approximate): 13" L x 6.8" W x 9.5" H (330mm x 173mm x 241mm)
- Dual-Battery Setup: Yes, typically a four-battery parallel setup (two for cranking, two for hotel loads).
Replacement battery options
- Interstate: 31-AGM, 31-MHD
- Odyssey: 31-PC2150S
- ACDelco: 31-AGM, 31-900
- DieHard: 31-AGM
AGM vs flooded — which does this vehicle need?
The 2019 Freightliner Cascadia uses a multi-battery setup, typically with four Group 31 batteries. Two are dedicated to cranking the engine, while the other two power "hotel loads" (lights, HVAC, accessories) when the engine is off. While standard flooded deep-cycle batteries can be used, Absorbent Glass Mat (AGM) batteries are highly recommended, especially for the hotel batteries. AGM batteries are more resistant to vibration and deep discharge, making them ideal for the Cascadia's power demands.
Post-installation relearn / reset procedure
No complex relearn procedure is required after a battery replacement. However, it's crucial to ensure the new batteries are fully charged and to clean the terminals and connectors before installation. After installation, start the engine and let it run for a few minutes to allow the alternator to begin charging the new batteries.
Signs of a failing battery
- Slow engine crank
- Dimming headlights, especially at idle
- Warning lights on the dashboard
- Corrosion on the battery terminals
- A rotten-egg smell (indicating a leaking battery)
Common battery issues for this generation
The 2019 Cascadia is known for its complex electrical system. Common battery-related issues include premature failure due to deep discharge, vibration-related damage, and alternator problems that can lead to undercharging or overcharging. Regular battery testing and maintenance are essential to prevent these issues.
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More specs for the 2019 Freightliner Cascadia
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.
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.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
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
2019 Freightliner Cascadia Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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