Heater Filter 21" x 9-1/4"

Price range: $14.70
Last checked: Oct 28, 2026

Industry research · October 29, 2026

Winter preparation: school bus heating, defrosting and cold-start parts

35 matched heater, blower, control, coolant-pump and engine block-heater parts for winter procurement planning. Motor rotation, connector and assembly type are kept distinct.

Spec sheet

Collected from 1 supplier page - confirm fit with the supplier before ordering.

This aluminum heater filter measures 21 inches in length by 9-1/4 inches in height with a thickness of 1/4 inch. The unit is constructed with a durable aluminum frame and an expanded aluminum pad. It is designed to fit specific heating systems in transit vehicles or school buses. This replacement component provides filtration for air intake systems using standard mechanical dimensions.

Suppliers (1)

BPW Direct
Heater Filter 21" x 9-1/4" · In stock
Checked Oct 28, 2026
$14.70
View at supplier

Specifications and fitment

Length: 21" (533.4mm)
Width: 1/4" (6.4mm)
Height: 9 1/4" (235mm)
General Specifications: Aluminum frame; expanded aluminum pad

Price history

Date	Supplier	Price	Stock
Oct 28, 2026	BPW Direct	$14.70	In stock
Oct 28, 2026	BPW Direct	$14.70	In stock