C7/C9/C-9 · HEUI actuator / charging pump
319-0675 HEUI Actuator Pump (Old-Style, 31-Tooth) — CAT C7 / C9 / C-9

New (reproduction) · Supplied by BOSTEN · MOQ 1 pc
The actuator (charging) pump pressurizes the oil circuit that fires HEUI injectors on C7, C9 and C-9 engines. This listing covers the old-style 31-tooth variant. Selecting the wrong variant is the most common pump mis-order we see — send a photo of the pump faceplate and the stamped number, and we confirm before quoting.
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 | 319-0675 |
|---|---|
| Condition | New (reproduction) |
| Fuel system | HEUI actuator / charging pump |
| Cross-reference | 319-0678 10R8900 312-0678 10R7148 304-0678 |
| Unit weight | 10.28 kg |
| Packing | 1 pcs / box · 11 kg · 300 × 300 × 200 mm |
| MOQ | 1 pc |
| Warranty | Warranty terms are confirmed per order and stated on the quotation. |
Fitment — listed applications
- CAT C7 / C9 / C-9 (HEUI) — variant confirmed by old pump number and tooth count
Actuator pumps differ by new/old style, 31 vs 36 tooth drive and whether a transfer pump is fitted — confirm all three from the old unit.

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 319-0675
Is 319-0675 new, remanufactured or used?
319-0675 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 319-0675 fits my engine?
Fitment is listed, not guaranteed. Listed applications: CAT C7 / C9 / C-9 (HEUI) — variant confirmed by old pump number and tooth count. 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 319-0675?
The listed minimum order is 1 pc. Factory packing is 1 pc per box, 11 kg. 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 319-0675 an OEM Caterpillar part?
319-0675 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 319-0675?
The main references we list for this part are 319-0678 / 10R8900 / 312-0678 / 10R7148 / 304-0678. 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 319-0675?
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?
HEUI pumps run on engine oil pressure, so oil condition and the oil filter matter as much as the pump itself. Contamination is the most common cause of a repeat HEUI failure and damage from contaminated oil is excluded under the warranty terms. Confirm the pump type and variant from the number and faceplate photo of your old pump before ordering.
Terms behind these answers: warranty & shipping · testing & packing. Fitment questions go to our technical team.
Related guides



