TUBE-EXHAUST 3448284 - Caterpillar

Note: Weld bosses are not part of the kits and must be ordered separately.PL300 ECM Only
Table 4
PL300 ECM Only    
Description     Part Number     Quantity    
PL300 ECM (Blank)     239-9954 Electronic Control Module     1    
PL300 ECM Flash File     265-9642 Flash File     1    PL321SR (PL121SR Radio and PL300 ECM)
Table 5
PL321SR (PL121SR Radio and PL300 ECM)    
Part     Description     Part Number     Quantity    
Antenna     Hard mount with
6 m (19.7 ft) coaxial cable     263-8948 Antenna As     1 (1)    
Hard mount with
3 m (9.8 ft)coaxial cable 266-2861 Antenna As     1 (1)    
Magnetic mount with
6 m (19.7 ft) coaxial cable 263-7802 Antenna As     1 (1)    
Radio     PL121SR     263-9088 Communication Electronic Control Module     1    
ECM     PL300     262-1421 Communication Service Gp (Pre-Flashed)     1    
239-9954 Unprogrammed Electronic Control Module (Service Replacement, Blank) 1
Harness     Radio Harness     256-6803 Harness     1    
Harness     PL300 ECM Harness     256-6804 Control Harness As     1    
Harness     Conversion Harness     257-9363 Harness (2)     1    
Mounting Adapters     ECM mounting Adapters     256-0501 Plate (3)     2    
( 1 ) Choose one of three antennas. The PL121SR radio antenna appearance is identical in appearance to the PL151/PL201 antenna, but they are different. The GPS receivers in the PL121SR and the PL151/201 are different and their respective antennas are not interchangeable. The connectors in the ends of the PL121SR cable have been made different to reflect that they are not compatible.
( 2 ) Exception: Non-Product Link Ready equipment requires a Legacy Harness (257-9364 Harness ) instead of the conversion harness.
( 3 ) ECM mounting adapters are not needed on Non-Product Link Ready equipmentNote: Fuse, fuse holder, insulated splices, and "Y" splices are not included in the kits and must be ordered separately.Optional Components
Table 6
Optional Components    
Description     Part Number     Quantity    
PL300 ECM and installation kit for Product Link Ready Machines     257-0429 Installation Group     1    
PL300 ECM and installation kit for Legacy Machines     257-0431 Installation Group     1    
Replacement whip for magnetic mount antennas     223-4296 Antenna     1    
Serial service cable     245-7310 Control Harness As     1    
Operation and Maintenance Manual     REHS2348     1    
Special Instruction     REHS2365     1    
Systems Operation Manual     RENR7911     1    
Table 7
Software Part Numbers    
Description     Part Number    
PL121 .xml file     267-4603    
PL300 .fls file     265-9642