1988 GMC K2500 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
Notes: The PROM(s)/CALPACK must be transferred from the original module to the replacement module;Additional relearns (theft, crankshaft, idle, etc) may be required;with OE # 1227747
Notes: Additional relearns (theft, crankshaft, idle, etc) may be required;The PROM(s)/CALPACK must be transferred from the original module to the replacement module