Bosch 0445120305 Common Rail Fuel Injector for Cummins 8.9L Komatsu

1. Product Overview

Brand new Bosch 0445120305 common rail fuel injector (type CRIN3-18, 1800 bar) for the Cummins 8.9L engine family, including Komatsu construction-machinery applications. The OE pairing — Cummins 5268436, also listed under Komatsu number 6746-11-3100 — rests on a single technical-file source and is marked accordingly: 5268436 is a genuine Cummins injector number (sold through Cummins’ own store), but its pairing with this Bosch number still awaits a second source, so confirm by the engraving on your old injector. Market sources point to the QSC / QSL direction within the 8.9L family, with an ISL 8.9 claim also in circulation — the specific engine model is to be confirmed. No Bosch exchange number could be confirmed. This injector shares its control valve F00RJ02506 with 0445120199 and 0445120257 — a shared valve does not make them interchangeable, and no OE or application data may be carried across.

2. Specifications

3. Fitment

Cummins 8.9L engine family (QSC / QSL direction) and Komatsu construction machinery — the specific engine model is to be confirmed by engraving or VIN. 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: do not confuse the Komatsu number 6746-11-3100 with 6745-12-3100, which belongs to 0445120236 — they differ by one digit only.

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.