Bosch 0445120236 Common Rail Fuel Injector 5263308 for Cummins QSB6.7 QSL9 Komatsu SAA6D114E

1. Product Overview

Brand new Bosch 0445120236 common rail fuel injector (type CRIN1-14/16, 1600 bar), Cummins OE number 5263308, Bosch exchange number 0986435522. Two catalogue-backed applications are documented for this injector and both are shown: Cummins QSB6.7 (technical-file matching table), and Cummins QSL9 / Komatsu SAA6D114E-3 in Komatsu PC300-8 / PC350-8 (dealer documentation plus the Komatsu cross number 6745-12-3100, which belongs to the SAA6D114E line) — confirm against your engine plate and the engraving before ordering. ⚠ OE 5263308 belongs to this Bosch number ONLY: listings that attach 5263308 to 0445120029 are wrong, and 0029 must not be ordered against it. ⚠ Twin warning: 0445120237 shares this injector’s control valve F00RJ01941 but has a different nozzle (0433172201 vs 0433172203) and a different OE (5263310 vs 5263308 — one digit apart). The two are NOT interchangeable; order by the engraved Bosch number. Family note: 0445120125 shares the same valve and the Cummins service number 4940170 with this injector.

2. Specifications

3. Fitment

Cummins QSB6.7 engines; and Cummins QSL9 / Komatsu SAA6D114E-3 (Komatsu PC300-8 / PC350-8) — two documented application lines, confirm by engine plate. 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: a minority listing gives exchange number 0986435560 for this injector group — it is not adopted; the catalogue-confirmed exchange number is 0986435522. 5263308 must not be used for 0445120029.

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.