Bosch 0445120165 Common Rail Fuel Injector for Yuchai YC6J EU4 DLLA150P2123

1. Product Overview

Brand new Bosch 0445120165 common rail fuel injector for the Yuchai YC6J EU4 engine, as fitted to Yutong and King Long buses (including hybrid-electric bus applications). No Yuchai OE number and no international Bosch eXchange number have been traced; the Bosch universal numbers listed below come from a single source and are marked accordingly. The nozzle is DLLA150P2123 (0433172123), documented by the repair-kit and nozzle sources for this part. ⚠ Control valve — two values in circulation: a repair kit for this injector specifies F00RJ02806, while a market valve table groups this part under F00RJ01704; Bosch parts data could not be retrieved to settle it, so both are shown — if you are ordering a valve or a repair kit, confirm against the number on your old valve first. This injector forms a repair-kit twin pair with 0445120291 (same kit, same nozzle, same engine) — a shared kit does not make them the same part number. It also shares its engine with 0445120110 but uses a different nozzle, so the two are not interchangeable. Not to be confused with 0445120161, the Cummins ISDe/ISBe injector (OE 4988835).

2. Specifications

3. Fitment

Yuchai YC6J EU4 engines — Yutong and King Long buses (including hybrid-electric buses). 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 or international eXchange number is reliably published for 0445120165.

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 do I confirm this injector fits my vehicle or engine?
A: Match the number engraved on your old injector, or send us your VIN on WhatsApp (+86 156 3802 2858) — we verify the exact match free of charge before you pay.

Q2: Is shipping included in the price?
A: No. Prices do not include shipping; freight is confirmed on WhatsApp after ordering.

Q3: What warranty and returns do you offer?
A: 6-month warranty (3 months for wear parts), 15-day returns for defective or wrong items, and refunds within 7 business days after inspection.