320D common-rail pump and injector numbers
The 320D KGF / GDP service entries pair 326-4635 injection pump with 326-4700 injectors. Cat Reman alternatives are 10R-7662 for the CR200 common-rail pump and10R-7675 for the injector.
| Component | New number | Reman identity | Technical detail |
|---|---|---|---|
| Injection pump | 326-4635 | 10R-7662 | CR200 common rail;15.7inlength/6.2inheight |
| Individual injector | 326-4700 | 10R-7675 | Injector unit; reman length8.8in |
320D2 Type1 and Type2 pumps need their installed identity
The 320D2 DNSpump entry is463-1678. ZCS andRARhave398-1498Type1 and 463-1678Type2entries. The two pumps should therefore remain separately numbered offers. The low-top 454-5091 injector includes its nozzle as an individual assembly.
| Prefix / configuration | Injection pump | Injector |
|---|---|---|
| DNS | 463-1678 | 454-5091 |
| ZCS / RAR Type1 | 398-1498 | 454-5091 |
| ZCS / RAR Type2 | 463-1678 | 454-5091 |
390-4679 priming assembly is a different fuel task
The 390-4679 is a24 V fuel-pump housing/base entry used for priming. Its7.55 in length and6.85 in height describe a different assembly envelope from the high-pressureCR200 pump. The associated filter and tube seals are separate fuel-service items.
Buy the pump, sealing parts and filters as identified lines
The 326-4635 installation list can include294-1841 pump gasket and 294-1842O-ring, whose inside diameter is144.4mm. Fuel-filter, water-separator and individual injector quantities belong on separate lines. Injector calibration/code and electrical connection details belong with the chosen engine variant.
| Line | Purchase scope |
|---|---|
| High-pressure pump | Full pump number, control and drive arrangement |
| Injector | Individual injector number, nozzle and code |
| Installation sealing | Gasket/O-ring part numbers and quantities |
| Fuel filtration | Primary/secondary/water separatornumbers |
| Priming assembly | Voltage, port and filter-base connections |
Individual injector or full engine set
One damaged injector is a one-unit line. A complete engine set uses the fitted cylinder count and each injector’s specification. Keep spare injectors separate from the fitted set, and distinguish new replacement offers from genuine or remanufactured purchases.
Buying questions
Is a priming pump the same as an injection pump?
The priming assembly fills the supply circuit and removes air before starting. The injection pump serves the high-pressure injection system.
Why does320D2needType1orType2on the order?
ZCS/RARinjection entries distinguish398-1498Type1from463-1678Type2. Keep the installed pump number with the serial prefix.
Does454-5091include the nozzle?
The Cat454-5091low-top injector is an injector assembly including its nozzle. It is bought individually.
Can new and remanufactured pump offers be compared?
Yes.326-4635 and10R-7662are separate purchase identities for new and Cat RemanCR200 pump choices. Retain condition and any core-return arrangement on each offer.