2 available, price is for each. Heavy Duty Air Cleaner, fits the following: Engine - Generator Set 3512B Generator Set YAM 3512B Generator Set YBB 3516B Gen Set Engine 2JW 3516B Gen Set Engine 6HN 3516B Gen Set Engine 7RN 3516B Generator Set 8NW 3516B Generator Set BPJ 3516B Generator Set DGP 3516B Generator Set FDN 3516B Generator Set FDX 3516B Generator Set GAR 3516B Generator Set GZS 3516B Generator Set JCH 3516B Generator Set JCN 3516B Generator Set JCY 3516B Generator Set JDE 3516B Generator Set PBR 3516B Generator Set PDR 3516B Generator Set RWL 3516B Generator Set YAT 3516B Generator Set YAW 3516B Generator Set YBT 3516B Generator Set YBW 3516B Generator Set ZAP 3516B Generator Set ZAR 3516B Generator Set ZBP 3516B Generator Set ZBR Engine - Industrial 3516B Industrial Engine PWL Marine Products 3516B Marine Auxiliary 9AN 3516B Marine Engine 8CN