Air Filter Set 346-6687 346-6688 285.8 mm for Caterpillar D3 D4 D5
346-6687 and 346-6688 air filter set for Caterpillar D3, D4 and D5 machines. The primary element is 285.8 mm across and 212.7 mm tall, with a 38.1 mm secondary that nests inside. Replaces PA5289, PA5290, AF25163 and WA10014.
| Tier Pricing (USD / unit) | |
|---|---|
| Qty | Unit Price |
| 1+ units | $39.99 |
| 10+ units🎯 Recommended | $37.99 |
| 50+ units | $33.99 |
| 100+ units | $31.99 |
📋 Key Specs
| Part Number | 346-6687, 346-6688, PA5289, PA5290, AF25163, WA10014 |
| Type | Air filter set, primary and secondary elements, oval pleated cellulose |
| Outer Diameter | 285.8 mm (11.25 in) primary |
| Overall Height | 212.7 mm (8.37 in) primary |
| Outer Diameter 2 | 261.9 mm by 131.8 mm, 38.1 mm (1.5 in) tall secondary |
| Media | Cellulose, pleated |
| Contents | 1 primary element, 1 secondary element |
| Application | Caterpillar D3, D4, D5; 910K to 920K loaders; AP-300D; 415F2 to 426F2 |
❓ FAQ
Yes. The box holds one 346-6687 primary element and one 346-6688 secondary. They are serviced together, so buying them as a pair saves the second order.
Caterpillar D3, D4 and D5 track tractors including the K2 LGP and XL builds, 910K to 920K wheel loaders, the AP-300D paver and 415F2 to 426F2 backhoes.
285.8 mm across, which is 11.25 in, and 212.7 mm or 8.37 in tall. The secondary measures 261.9 mm by 131.8 mm and stands 38.1 mm tall.
No. Leave the secondary in place while the primary is out. It is the barrier that stops dust falling into the intake during the change.
These are disposable cellulose elements. Blowing them out damages the pleats and lets dust through, so renew both elements rather than trying to stretch the interval.
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
346-6687 is the primary air filter element in a two-piece set for the Caterpillar D3, D4 and D5 track-type tractors, paired with the 346-6688 secondary. The primary measures 285.8 mm across and 212.7 mm tall; the secondary is 38.1 mm tall and sits inside it.
