C4.4 / C6.6 · Common rail
324-0532 / 2641A405 Common Rail Injection Pump — CAT C4.4 / C6.6

New (reproduction) · Supplied by BOSTEN · MOQ 6 pcs
Common-rail injection pump listed for C4.4 and C6.6 machines — backhoe loaders, wheel loaders and small excavators. Send the machine model and the number on the old pump; the same pump family covers several builds.
Fitment is listed, not guaranteed. Applications are compiled from catalog and cross-reference data. Fitment is confirmed by our team against the old part number and engine serial before quotation — not an automated lookup.
Specifications
Identity, fitment and packing
| Part number | 324-0532 |
|---|---|
| Condition | New (reproduction) |
| Fuel system | Common rail |
| Cross-reference | 2641A405 10R-7659 |
| Unit weight | Confirmed per order |
| Packing | 6 pcs / box · None · None |
| MOQ | 6 pcs |
| Warranty | Warranty terms are confirmed per order and stated on the quotation. |
Fitment — listed applications
- CAT C4.4 / C6.6 — 420E / 430E / 450E backhoe loaders, 914G loader, M313D / M315D excavators (as listed)
Cross-reference numbers are for identification — confirm the exact version by the old part number.

Before dispatch
Checked, photographed, packed
Units are inspected on named test equipment before packing. Photos of your actual goods are taken before shipment, and a test report for the ordered batch is available on request.
Quality & testingProduct FAQ
Questions buyers ask about 324-0532
Is 324-0532 new, remanufactured or used?
324-0532 is supplied new, as an independent aftermarket reproduction built to the fitment and function of the part it replaces. It is not a used or reconditioned unit, and it is not an OEM part.
How do I confirm 324-0532 fits my engine?
Fitment is listed, not guaranteed. Listed applications: CAT C4.4 / C6.6 — 420E / 430E / 450E backhoe loaders, 914G loader, M313D / M315D excavators (as listed). Send the number stamped on your old unit, the engine model and serial, and — where the stamping is worn — a photo of the old part. We check it against the catalog manually and confirm in the quotation. The machine or engine model alone does not select the part.
What is the minimum order quantity for 324-0532?
The listed minimum order is 6 pcs. Factory packing is 6 pc per box. If you need a different quantity for a trial or a mixed order, ask — what we can actually ship is confirmed in the quotation, not on this page.
Is 324-0532 an OEM Caterpillar part?
324-0532 is an independent aftermarket replacement part, manufactured for BOSTEN and sold under our own brand. It is not a Caterpillar OEM part, and BOSTEN is not an authorized Caterpillar distributor or dealer. Caterpillar names and part numbers appear on this page for identification and cross-reference only.
Can you check my old part number against 324-0532?
The main references we list for this part are 2641A405 / 10R-7659. A shared number in a cross-reference list is identification, not a guarantee of interchange, so we check the number on your old unit against the catalog before quoting.
What warranty applies to 324-0532?
Warranty terms are confirmed per order and written on the quotation before payment. Different product lines and conditions carry different periods, so the terms for this part are not printed here as a generic number. Damage from contaminated oil or fuel and incorrect installation are excluded under the terms confirmed for your order.
What should I check before replacing the pump?
Common-rail high-pressure pumps are sensitive to fuel contamination and to the rail-pressure calibration of the system they serve. Confirm the pump version from the number on your old unit before ordering — the vehicle or engine model alone does not settle the pump build.
Terms behind these answers: warranty & shipping · testing & packing. Fitment questions go to our technical team.
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