CAT C7 · C9 · C-9 · C9.3 · HEUI · Common Rail · Repair Kits
Diesel Fuel Injectors & Pumps for Repair Shops and Parts Distributors
Find parts by part number and engine model. Contact us to confirm compatibility, availability and quotation.
Fitment is confirmed by our team before quotation — not an automated lookup.
Core products
Three product lines, one part-number standard
Diesel Fuel Injectors
HEUI and common-rail replacement injectors for CAT C7, C9, C-9 and C9.3 engines — new and remanufactured, matched by part number.
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Injection Pumps
HEUI pumps, actuator pumps and rotating pump assemblies — supplied complete or as repair components.
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Repair Kits
Seal kits, external kits and major overhaul kits for C7/C9, 3126, 3412, 3500, M11, K19 and more.
BrowseAlso shop by brand: Caterpillar · Cummins · Volvo · Detroit Diesel · Weichai · Bosch CP / CR — or see the full catalog →
Find by engine
Engines we regularly supply are listed
If yours is not here, send the part number — the catalog is larger than the website.
| Engine | What we supply | |
|---|---|---|
| CAT C7 / C7 ACERT | HEUI injectors · HEUI pumps · seal kits | View → |
| CAT C9 | HEUI injectors · HEUI pumps · seal kits | View → |
| CAT C-9 · C9.3 | Remanufactured C-9 injectors · C9.3 common-rail parts | Compare → |
| CAT 3126 / 3126B | HEUI injectors and repair kits | View → |
| CAT 320D (C6.4 / C6.6) | Common-rail injectors and pumps | View → |
| CAT 3406E / C15 / C18 | EUI injectors — pages in preparation | Ask → |
Featured parts
Part numbers in active supply
Availability is confirmed per order — the listing means we supply it, the quotation means we have it.
238-8091
CAT C7 / C7 ACERT (HEUI)
New (reproduction) · Listed for CAT C7 / C7 ACERT — loaders, graders and similar equipment
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268-1835
CAT C7 / C7 ACERT (HEUI)
New (reproduction) · Listed for CAT C7 / C7 ACERT — loaders, graders and similar equipment
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387-9434
CAT C9 (HEUI)
New (reproduction) · Listed for CAT C9 (HEUI) — E330D, E336D excavators; D6R, D7R track-type…
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293-4071
CAT C9 (HEUI)
New (reproduction) · Listed for CAT C9 (HEUI) — D6R III, D6T track-type tractors
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235-5261
CAT C9 (HEUI)
New (reproduction) · Listed for CAT C9 (HEUI) — excavators, motor graders
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188-8739
CAT C-9 (HEUI), Remanufactured
Remanufactured · Listed for CAT C-9 (HEUI) — note: C-9 differs from C9 ACERT; confirm by…
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363-0493
CAT C9.3 / C9.3B (Common Rail)
New (reproduction) · Listed for CAT C9.3 / C9.3B (common rail) — confirm engine version and …
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392-9044
CAT C7.1 (Common Rail)
New (reproduction) · Listed for CAT C7.1 — equipment model confirmed by nameplate
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Quality evidence
Tested on named equipment, report on request
Injectors and pumps are checked on Bosch EPS815 and Hartridge test benches, including a dedicated Toledo HEUI Master for HEUI units. A test report for the ordered batch is available on request.
How we test & packOrdering & terms
The four conditions to settle before you order
Samples
Sample terms are confirmed per product line with the quotation — tell us which numbers you need to test.
Lead time
Confirmed per order with the quotation. Typical packing time is 3–5 working days after payment.
Shipping
FOB / CIF / EXW / DDP per order. Express, air or sea freight from China; papers per destination.
Warranty & claims
Warranty terms are confirmed per order and stated on the quotation — no generic numbers, no surprises.
Where our parts go
Markets, branches and trade fairs
Customer references are shared privately on request — we don't publish other people's names.
Where parts go
Southeast Asia · Middle East · Africa · Europe · The Americas — supplied through our Dongguan facility.
Branches
Sales branches in Dubai and Nigeria keep spares close to the markets that need them fastest.
Trade fairs
Meet us in person: Automechanika Shanghai (Nov 2025), CICEE Changsha (May 2025), Automechanika Shenzhen (2023).
1 · Fitment confirmed first
Send the old part number (a nameplate photo helps). We confirm the exact version before any price talk.
2 · Quotation with terms
Quantity price, packing, warranty terms and delivery time — in writing, per order.
3 · Packed for export
Factory packing (e.g. 6 injectors per box), photos before shipment, and dispatch tracking.
Questions buyers ask
Short answers before you inquire
What information do you need to quote?
The part number from your old unit, the engine model and, if possible, a photo of the nameplate or the old part. Quantity and destination port complete the quote.
Can you identify a part from a photo?
Often yes, but not always. The stamped part number on the old unit is the reliable identifier — photos help us verify it.
Do you supply outside China?
Yes. Parts supply only, to Southeast Asia, the Middle East, Africa, Europe and the Americas. Workshop repair service is provided in China only.
What is the minimum order?
It depends on the product: single injectors start at 1 piece, some injectors ship in factory packs of 6, kits vary. MOQ is shown on each product page.
BOSTEN · At a glance
The short facts, for quick reference
| Brand | BOSTEN — diesel fuel-system specialist since 1998 |
|---|---|
| Legal entity | Dongguan Dayan Bolian Engine Equipment Co., Ltd. (registered 2012) |
| Catalog | 136 part numbers — injectors, injection pumps, repair kits |
| Engine families | CAT C7 · C9 · C-9 · C9.3 · C7.1 · 3126 · 320D; Cummins, Volvo, Scania, MTU |
| Test equipment | Bosch EPS815 · Hartridge Toledo HEUI Master · DCI700 · AVM2 |
| Authorization | Bosch Diesel System Service Center (Dongguan); Delphi and Denso service authorization |
| Export | Parts supply worldwide — Southeast Asia, Middle East, Africa, Europe, Americas |
| Service scope | Workshop repair service in China only; overseas is parts supply with fitment confirmation |
Send the part number — we confirm the rest
Part number or model, quantity, destination country. A photo of the nameplate or old part is the fastest way to confirm fitment.
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