Injectors for 1999 Crusader 454 7.4L EFI

T. Hurley

Recruit
Joined
Jul 21, 2021
Messages
4
My 1st entry so pls forgive any oversights.

I'm trying to find replacement injectors for the above engine ser# 60035 but I'm getting conflicting info from parts dealers and mechanics. Two of the current injectors, which I believe to be original, display the #A6079-25180245 and the online Crusader Engine Parts Manual indicates the Injector Assembly #49051 but neither of these # correlates to any current parts at the local car/marine parts stores. I tried to find a local Crusader Engines dealer through their website but it didn't function properly so I emailed them. Some 'professionals' are saying I can use the injectors for a Chevy heavy duty truck but there are different "flow rates" and I don't know what flow rate is compatible. Can anyone give me an authoritative source for what injectors are suitable and where to purchase them? BTW, I don't have a manual and the online Engine Parts Manual doesn't cover my engine's ser #. Txs in advance from New Bern, NC.
 

alldodge

Moderator
Staff member
Joined
Mar 8, 2009
Messages
40,751
Wish I could help more but I'm not even finding a parts manual for a 99 7.4 Crusader. Think it has TBI

Found the following info, and appear to operate at 12 PSI and cannot be used on 29 PSI systems

GM - 17109972, 17100372, 17084304, 17112249, 17112250, 17112560, 17112561
Crusader - 47031
Rochester - 17109972

Do check all these numbers, this is just what I have found

https://injectorsales.com/product/rochester-7-4l-throttle-body-injector-17084304/

https://www.motormanfuelinjection.c...rs/17109972-Crusader-Marine-fuel-injector.htm
 

T. Hurley

Recruit
Joined
Jul 21, 2021
Messages
4
Wish I could help more but I'm not even finding a parts manual for a 99 7.4 Crusader. Think it has TBI

Found the following info, and appear to operate at 12 PSI and cannot be used on 29 PSI systems

GM - 17109972, 17100372, 17084304, 17112249, 17112250, 17112560, 17112561
Crusader - 47031
Rochester - 17109972

Do check all these numbers, this is just what I have found

https://injectorsales.com/product/rochester-7-4l-throttle-body-injector-17084304/

https://www.motormanfuelinjection.c...rs/17109972-Crusader-Marine-fuel-injector.htm
Much txs!
 

Bt Doctur

Supreme Mariner
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Aug 29, 2004
Messages
19,111
 

T. Hurley

Recruit
Joined
Jul 21, 2021
Messages
4
Much txs! Will check it out! I was also told today by a marine parts dealer that Crusader no longer has any US dealers b/c it was sold to another company so parts availability is sketchy, at best...any truth to that?
 
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