← All kits for 2001 Freightliner Classic XL
2001 Freightliner Classic XL
Caterpillar C15 · Oil, Fuel & Dual Engine Air KingKit
Routine maintenance filters matched to your Classic XL’s engine and installed equipment. Confirm your filter setup to see the exact KingKit.
$497.99–$500.99
Confirm your installed equipment to see exact filters, quantities and availability.
- Engine Oil Filter
- Secondary Fuel Filter
- Primary fuel service (filter/separator as equipped)
- Primary Engine Air Filter
Detailed fitment information & service scope
Five routine-service filters: one oil, one secondary fuel, one selected primary fuel and two matching engine-air elements. Choose BF1259 or BF1212 to match the primary filter currently installed; one is included, not both. Confirm the matching dual-RS3539 air arrangement before ordering. Cabin/HVAC filters and unlisted or unconfirmed arrangements are not included.