BLLA 139 P 851-J

DENSO COMMON RAIL INJECTOR NOZZLE: DLLA139P851 - FULL SPECIFICATION

I. Key Identification & Compatible Injectors

Nozzle (Injector Tip) P/N: DLLA139P851 | Alternative Denso Nozzle P/N: 093400-8510.
System Manufacturer: DENSO Common Rail (CR) System.

Complete Injector Assembly P/N(s):
- Primary P/N: 095000-548X (e.g., 095000-5480, 095000-5481).
- Alternative P/N: 095000-505X (used in similar John Deere CR applications).

OEM JOHN DEERE P/N(s):
- Most Common OEM: RE520240.
- Alternative OEM(s): RE520333 / RE520240 / SE501931.

II. Vehicle Application & Technical Data

Primary Vehicle Application: JOHN DEERE Agricultural and Construction Equipment.
Models: **Tractor, Combine, Grader** (e.g., 6045, 6420, S350, PowerTech engines).
Engine Code: 4045 and 6068 (4.5L and 6.8L PowerTech Tier 2 Diesel Engines).
Spray Angle: 139° (Critical geometric parameter).
Material: High-speed Steel (Standard for CR components).

III. Critical Technician Notes (MUST-DO)

1. IMA/C2I Coding: After installation, the Injector Compensation Code MUST be reset/re-entered in the ECU (Controller). This step is MANDATORY for proper engine performance and emissions compliance.
2. Sealing Replacement: NEVER RE-USE the old copper sealing washer (gasket) or O-rings. Always replace with new ones to ensure perfect sealing and heat transfer.
3. System Cleanliness: DENSO CR systems demand extreme cleanliness. Contamination leads to immediate component failure, which is especially critical for off-road machinery.