Torque Air Filter AF26103 — Replacement for IC Bus / Navistar, 15.75in Height, OEM-fit

Torque AF26103 is a direct-fit replacement air filter designed for select IC Bus, IHC/Navistar, and heavy-duty diesel engines to help protect intake systems and maintain consistent airflow.

This Torque AF26103 air filter is built to match OEM fit and filtration dimensions for many Caterpillar, Cummins and International engines. It offers the same basic height and diameter specifications as the referenced Fleetguard and other replacement part numbers, and is backed by a one-year manufacturer warranty. Below you’ll find concise answers to common buyer questions about fit, specs, compatibility and maintenance.

How do I confirm the Torque AF26103 will fit my vehicle?

Check fitment by comparing your existing part number or VIN against the cross-reference list. If you don’t have the part number on hand, provide your VIN to the seller or contact a dealer to verify compatibility before ordering.

• Provide VIN to seller for a fitment check.
• Cross-reference against listed replacement numbers (e.g., Fleetguard AF26103, Baldwin RS4862).
• Confirm dimensions: height 15.75 in, outer diameter 12 in, bottom inner diameter 9.89 in.

Which engines and applications is this filter compatible with?

The Torque AF26103 supports a range of heavy-duty diesel engines used in IC Bus and Navistar/International platforms, plus many Caterpillar and Cummins models. It’s intended as an aftermarket replacement for several widely used OEM and aftermarket part numbers.

• Compatible engines: Caterpillar C10–C15 series (including C15 ACERT).
• Cummins models: ISM, ISX, ISX15-450, ISX15-500.
• International/MaxxForce and Navistar models including HT570 and Maxxforce 10–15.

What are the physical specifications and replacement intervals?

The filter is manufactured to specific dimensions so it seals and fits like the original. Routine replacement improves intake protection; typical guidance for heavy-duty applications is based on operating conditions, and the manufacturer recommends periodic changes.

• Key specs: Height 15.75 inches; outer diameter 12 inches; bottom inner diameter 9.89 inches; top inner diameter is closed.
• Suggested replacement: every 15,000–30,000 miles depending on environment and duty cycle.
• Warranty: 1-year manufacturer coverage against defects.

Which OEM or aftermarket part numbers does it replace?

Torque AF26103 is offered as a compatible substitute for several established filter numbers, making it easy to switch in fleets or service shops using common reference parts. Always verify cross-reference numbers with your dealer or service manual before installation.

• Common replacements include Fleetguard AF26103, Baldwin RS4862, Fram CA10305.
• Also cross-references: Luberfiner LAF6663, Napa 9088, Purolator A65913, Wix 49088, Navistar 3551814C1.
• Use the part number list to match legacy or dealer-supplied references.

Who this is for: The Torque AF26103 is aimed at fleet managers, technicians and owner-operators who maintain IC Bus, IHC/Navistar, and heavy-duty diesel vehicles powered by Caterpillar or Cummins engines. If you need a cost-effective, warranty-backed replacement that matches common OEM dimensions and cross-references multiple part numbers, this filter is appropriate. For precise fitment, have your VIN or current part number available when ordering.