Caterpillar 3306 water pump
- Interchanges
- 8N5929
- Engine
- CAT 3306T, CB-534 / CP-643
- Net weight
- 12.70 kg / pc
634 pumps, 1,700+ OE cross references. Every pump we ship is air-tightness tested at −0.1 MPa and hand-checked for rotation before dispatch.
Cross references for
Six application families, one cross-reference database. Tell us the machine, the OE number or a photo of the old pump — we will match from there.
Heavy-duty highway engines: continuous coolant flow at high load, seal life above 200,000 km.
View rangeTractor and harvester pumps built for dust, vibration and long harvest seasons.
View rangeExcavator, loader and dozer applications where a failed pump stops the whole site.
View rangeConstant-speed genset cooling, including marine auxiliary and standby power units.
View rangeCorrosion-resistant housings and seals for propulsion and auxiliary engines.
View rangeThe largest slice of our range: CAT, Daewoo, Mazda, Clark, Hyster applications.
View rangeReal OE numbers, real stock dimensions. Quotation is confirmed per OE number — send the OE list and we reply with pricing, MOQ and lead time.
Send the OE number stamped on the old pump, or the number your customer quoted. We come back with the pump number, the interchange list and the engine applications.
Try: 3520211 · 8N5929 · 3803605 · 901096872 · 8125289170 · 4948821
A water pump fails in two ways: it leaks, or the bearing dies. Both are checked before packing — the test record travels with the carton.
No leakage detected under negative pressure of 0.1 MPa.
Turns freely by hand — no clamping, no abnormal noise.
No supplier logo, no dirt, rust or paint peeling on the casting.
Holes and flanges checked against the original for precise alignment.
| Pump body threads | 4-3/8-16UNC |
|---|---|
| Belt pulley height | 85.85 mm |
| Impeller height | 29.9 mm |
| Pulley runout | 0 |
| Air tightness | No leakage @ −0.1 MPa |
| Net weight / carton | 9.70 kg / 2 pcs |
The same four steps for a one-carton sample order and for a full container programme.
OE number, engine model or a photo of the old pump. A scan of your list works just as well.
Confirmed OE match, interchange list, unit price, MOQ and carton data — in one reply.
Sample shipped before the order. Fit, rotation and leak test signed off first.
Neutral or private-label packing, documents prepared for your forwarder.
Paste the numbers in the message box — even a rough list is enough. We reply with confirmed matches and pricing within one working day.
Four things buyers ask us most often.
Yes. Our index holds 1,704 OE numbers mapped to 634 pumps, including OEM and aftermarket interchange numbers. Send the plain list — no formatting needed — and we come back with the confirmed OE match, the interchange set and the engine applications.
Each pump is sealed and pulled to a negative pressure of 0.1 MPa. A unit that holds pressure passes; one that does not is rejected at the bench. Rotation is checked by hand in the same step: it must turn freely, with no clamping or abnormal noise.
Neutral is our standard: no supplier logo on the casting surface, plain cartons, no brand printing. Private-label boxes and custom laser marking are available on request — send your artwork with the enquiry.
The OE number, the engine model, or clear photos of the old pump from several angles with any casting marks visible. Weight and carton dimensions from your current supplier help us match the packing exactly.