Safety Air Filter C 17 124 for Liebherr PR, Renault C — 163 mm, 381 mm
Secondary safety air filter element KA33512, 163 mm outer diameter, 134 mm inner diameter with a 17 mm bore, 188 mm outer diameter 1 and 381 mm overall height. Interchanges with MANN C 17 124, Hengst E761LS, Donaldson P775803 and Sakura A-7905. Fits Liebherr PR dozers and RL/SR pipelayers, Renault Trucks C, CBH, Manager, Maxter and Midliner, and Renault Bus Agora.
📋 Key Specs
| Part Number | KA33512 |
| Filter Type | Engine air filter element, secondary safety |
| Outer Diameter | 163 mm |
| Inner Diameter | 134 mm |
| Inner Diameter 1 | 17 mm |
| Outer Diameter 1 | 188 mm |
| Overall Height | 381 mm |
| Media | Non-woven synthetic |
| Packaging | 1 piece |
❓ FAQ
No. It is a secondary safety element. It sits downstream of the primary element and only filters when the primary is out or has failed. Fitting it on its own leaves the engine without a primary element.
No. Both are 163/134/17/188 mm and only the height differs, 381 mm against 409 mm, so either will drop into the bore. But the housing is different: C 17 124 pairs with primary element C 29 1055 or C 31 1256/2, while C 17 149 pairs with C 29 939. A wrong height leaves the end face unclamped and unfiltered air short-circuits into the intake.
C 29 1055 or C 31 1256/2, ordered separately. The two always change together, because a safety element that has been in service with a loaded primary element is already partly blocked.
MANN has flagged C 17 124 as discontinued since 2021 and Hengst lists E761LS as inactive as well. KA33512 is made to the C 17 124 specification and supplied from stock, so confirm availability with the quote.
No. A-7905 is the secondary element that matches this housing. AH-7905 measures 197/144/298.5 mm and is a complete housing-type filter, a different part entirely.
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
KA33512 is a secondary safety air filter element for the air cleaner housings on Liebherr PR dozers, RL and SR pipelayers and on Renault Trucks C, CBH, Manager, Maxter and Midliner. It measures 163 mm outside diameter, 134 mm inside diameter with a 17 mm bore, 188 mm at outer diameter 1 and 381 mm overall height. A safety element sits downstream of the primary element and only takes over when the primary is removed or has failed; on its own it cannot do the job of a primary element.
