Which GM fuel injectors do I have?

by Riky Enriquez
392 SHARES Injector Specs: GM Fuel Injector Identification And Cross-Reference
    MULTEC - PINK
    EV6 - RED
    EV1 - PURPLE

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

 

This injector family portrait includes four of the five popular GM fuel injectors. From left to right: original Bosch Jetronic EV1, the tall LS1 style followed by the early LS truck injector, and on the far right the late LS3 EV6 style. The one missing version is the late truck injector that is the same height as the early truck LS piece but using the EV6 electrical connector.

From left to right: original Bosch Jetronic EV1, the tall LS1 style followed by the early LS truck injector, and on the far right the late LS3 EV6 style. The one missing version is the late truck injector that is the same height as the early truck LS piece but using the EV6 electrical connector.

 

When it comes to tuning, wrong fuel injector data can lead to major running issues as well as no start, increased emissions, lack of power. Not to mention the headache it is for the tuner to try and work around this lack of data. Some tuners don't even bother tuning if they don't have the correct data. I hope this will help you identify your GM fuel injectors and convey this info to your local tuner.

If you would like more information on the physical difference, electrical connectors, and other criteria please let us know in the comments!

Or contact us at lstunemail@gmail.com.

-LS Pros

 

Back to News