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Check your fuel injector part number with the guide below to verify your flow rate

fuel injector guide

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Click here to see our PCM/Engine Controllers

Click here to see our Component ID Guide

 PSI Fuel Injector GuideFuel Injectors
ENGINE INJECTORS PART # INJECTOR
SIZE
LS1 EV1 12533952

12554271

12555894

12456154

12482704

12561462		 1997-98
= 26.2 lb/hr @ 58 psi

1999-00 = 27.3 lb/hr @ 58 psi

 2001-04 = 30 lb/hr @ 58 psi
LS6 EV1 12561462 30
lb/hr @ 58 psi
LR4 Multec 17113698 1999
= 21.8 lb/hr @ 58 psi

2000 = 24.8 lb/hr @ 58 psi

2001-06 = 25.2 lb/hr @ 58 psi
LM7 Multec 17113698 1999
= 21.8 lb/hr @ 58 psi

2000 = 24.8 lb/hr @ 58 psi

2001-07 = 25.2 lb/hr @ 58 psi
L59 EV6
/ USCAR		 12580426

25326903		 33
lb/hr @ 50 psi, Return Style (02-04)

36.6 lb/hr @ 58 psi, Returnless (05-07)
LQ4 Multec 17113698 24.8 lb/hr @
58 psi
LQ9 Multec 17113698 25.2 lb/hr @
58 psi
LM4 Multec 17113698 25.2 lb/hr @
58 psi
L33 Multec 17113698 25.2 lb/hr @
58 psi
LS4 EV6 / USCAR 12580681 30 lb/hr @ 58
psi
LS2 EV6 / USCAR 12569113 34 lb/hr @ 58
psi
L76 EV6 / USCAR 12576341 42 lb/hr @ 58
psi
L77 EV6 / USCAR 12639221 42 lb/hr @ 58
psi
LS3 EV6 / USCAR 12576341 42 lb/hr @ 58
psi
L99 EV6 / USCAR 12576341 42 lb/hr @ 58
psi
LSA EV6 / USCAR 12598646 52 lb/hr @ 58
psi
LS9 EV6 / USCAR 12598646 52 lb/hr @ 58
psi
LS7 EV6 / USCAR 12576341 42 lb/hr @ 58
psi
LY2 EV6 / USCAR 12580681 30 lb/hr @ 58
psi
L20 EV6 / USCAR 12613411 36 lb/hr @ 58
psi
LY5 EV6 / USCAR 12580681 30 lb/hr @ 58
psi
LMG EV6 / USCAR 12613411 36 lb/hr @ 58
psi
LMF EV6 / USCAR 12613411 36 lb/hr @ 58
psi
LY6 EV6
/ USCAR		 12580681

12587269		 30
lb/hr @ 58
psi

40 lb/hr @ 58
psi
L96 EV6 / USCAR 12613412 44 lb/hr @ 58
psi
LH6 EV6 / USCAR 12580681 30 lb/hr @ 58
psi
LC9 EV6
/ USCAR		 12594512

12613411		 36 lb/hr @ 58
psi (2007-09)

  36 lb/hr @ 58 psi (2010-11)
LH8 EV6 / USCAR 12580681 30 lb/hr @ 58
psi
LH9 EV6 / USCAR 12613411 36 lb/hr @ 58
psi
LS2 Truck EV6
/ USCAR		 12569113

89017586		 34
lb/hr @ 58 psi
L76 Truck EV6 / USCAR 12580681 30 lb/hr @ 58
psi
LFA EV6 / USCAR 12580681 30 lb/hr @ 58
psi
LZ1 EV6 / USCAR 12613411 36 lb/hr @ 58
psi
L92 EV6 / USCAR 12580681 30 lb/hr @ 58
psi
L9H EV6 / USCAR 12609749 54 lb/hr @ 58
psi
L94 EV6 / USCAR 12609749 54 lb/hr @ 58
psi