Secondary Air Filter CF 1200 for Mercedes-Benz, Renault — 121 x 381 mm
Secondary air filter element KA33505, 121 mm outer diameter, 112 mm at the end, 105 mm and 17 mm inner diameters, 381 mm overall height. Interchanges with MANN CF 1200, Hengst E116LS and Donaldson P776696. It mounts inside the primary element C 23 440/1, C 23 440/3 or C 23 440/4 on trucks, graders and compressors.
📋 Key Specs
| Part Number | KA33505 |
| Filter Type | Secondary air filter element, safety element |
| Outer Diameter | 121 mm |
| Outer Diameter 1 | 112 mm at the outlet end |
| Inner Diameter | 105 mm |
| Inner Diameter 1 | 17 mm centre hole |
| Overall Height | 381 mm |
| Media | Cellulose with support mesh |
| Packaging | 1 piece |
❓ FAQ
It is a secondary safety element. It mounts inside the primary C 23 440/1, C 23 440/3 or C 23 440/4 and only filters the air that gets past the primary if that element is damaged or not seated.
Yes. KA33505 matches CF 1200 on 121 mm outer diameter, 112 mm outlet diameter, 105 mm and 17 mm inner diameters and 381 mm overall height.
MANN-FILTER lists CF 1200 at 381 mm overall height, and the element supplied as KA33505 measures 381 mm. A 2 mm difference is within what different catalogues record, but measure the old element if the housing clearance is tight.
Yes, when the primary is due. A safety element is only meant to sit behind a healthy primary, so fitting a new one against a clogged or damaged primary gives no extra protection.
Mercedes-Benz trucks and Unimog using 003 094 45 04, Renault Trucks using 50 00 802 978, New Holland equipment using 80430288, SANY PQ graders, and Atlas Copco or Sullair compressors using 1619554500.
MOQ varies by product: 5–100 units for standard parts (see product page). Tier pricing decreases with volume. Custom parts usually ≥ 50 units, evaluated by process.
Stock/short-run: 7–15 days; bulk orders 20–35 days; custom 30–45 days incl. sampling. Note your deadline in the inquiry — sales will confirm capacity.
Add products to the inquiry list and submit with contact info. Sales contact you within 24h and issue a formal quotation (tier pricing + proforma invoice) within 48h. The AI assistant can pre-fill inquiries in chat.
Yes. We develop from drawings/samples and support private labeling. Process: evaluation → sampling (15–25 days) → approval → mass production.
Payment: T/T 30% deposit + 70% before shipment / L/C / Trade Assurance. Shipping: FOB Ningbo/Shanghai, CIF or DDP; EU & NA warehouses; sea/air/express.
ISO 9001 & IATF 16949; CE/UL/ATEX on key products. Every batch ships with inspection reports; third-party inspection (SGS/BV) supported.
Description
Product Overview
KA33505 is the secondary air filter element that mounts inside a primary element on Mercedes-Benz and Renault trucks, graders and air compressors. It measures 121 mm outside diameter, 112 mm at the end, 105 mm main inner diameter with a 17 mm centre hole, and 381 mm overall height. A safety element is not a spare primary: it filters only the air that reaches the engine if the primary is damaged, missing or badly seated.
