Bosch 0445120439 Common Rail Fuel Injector

1. Product Overview

Brand new Bosch 0445120439 common rail fuel injector, supplied by Wuhan Ranyingyi Trading Co., Ltd. (injector-factory.com). First, the most important fact about this number: 0445120439 is itself a universal (interchange) counterpart number — the counterpart of Bosch 0445120225 — and it is NOT a Bosch exchange number. Two manufacturer documents support that identity (a valve-set file’s fitment table lists 0445120225 with universal number 0445120439, and the parent model’s own technical file likewise contains this number), and this page and the 0445120225 page are linked. Any listing or page that cites 0445120439 as the “exchange number” of 0445120225 or of any other injector is wrong. Beyond that identity, nothing is settled: the parent model’s own data has no independent third-party source, and its application is claimed two conflicting ways in the sources, neither of which is adopted here. So no OE number, fitment, nozzle or valve is stated for this number — the parent model’s OE, nozzle and valve are documented for the parent model only and are not transferred. If your old injector is engraved 0445120439, send us a photo of the engraving on WhatsApp and we will verify the match free of charge before you order.

2. Specifications

3. Fitment

To be confirmed — this number follows the 0445120225 application family (Yuchai direction), but the parent model’s application is claimed two conflicting ways and is not settled, so no engine is named for this number; contact us with the engraved number or VIN and we will check it against your engine free of charge. Fitment data is for reference only — please confirm by the number engraved on your old injector or send us your VIN before ordering.

4. Cross-Reference

Note: no OE number, nozzle or control valve could be confirmed for this injector, so none is listed — and there is deliberately no exchange-number row for this page: 0445120439 is a universal counterpart number, and it must never be cited as a Bosch exchange number for 0445120225 or any other injector.

5. After-Sales & Warranty

Professional installation by a qualified diesel technician is recommended. Every injector is covered by a 6-month warranty (3 months for wear parts). Defective or wrong items can be returned or exchanged within 15 days of receipt; return shipping is on the buyer unless the error is ours. Orders are processed within 1–2 business days with tracking, and refunds are issued within 7 business days after inspection. Full terms: see our Shipping & Returns page.

6. Why Choose Us

Factory-direct supply from Wuhan Ranyingyi Trading Co., Ltd. (injector-factory.com). Every injector is bench-tested before shipment, packed for export, and backed by fast, technical support on WhatsApp (+86 156 3802 2858) — send us your old injector’s engraved number or your VIN and we verify the exact match free of charge before you pay.

FAQ

Q1: How can I be sure this injector fits my engine?
A: Send us the number engraved on your old injector, or your VIN, on WhatsApp (+86 156 3802 2858). Our technicians will verify the exact compatibility free of charge before you order. Fitment data on this page is for reference only.

Q2: Does the price include shipping?
A: No. Our prices do not include shipping. Please contact us on WhatsApp (+86 156 3802 2858) for the latest price, and the freight will be confirmed with you on WhatsApp after you place the order, before anything is charged for delivery.

Q3: What warranty and returns do I get?
A: Core injectors carry a 6-month warranty (wear parts 3 months). Defective or wrong items can be returned or exchanged within 15 days of receipt; refunds are processed within 7 business days after inspection.