Heavy Equipment Forums Heavy Equipment Community

In search of a CAT 215B Excavator Engine (Model 3304)

Member · 2022-09-08 12:29

Hello, I am in search of a engine for my 215B excavator, has a 3304 engine in it currently with a hole in the side of it. Anyone on here know where one might be or what could be a replacement engine for this my excavator by chance. Thanks Justin,

Replies28
  1. #156wrench2022-09-10 09:48

    The 3304 was used in various kinds of equipment as well as gensets and marine with different arrangement numbers. As long as the block and crankshaft are the same you should be able to convert one to your arrangement/configuration as far as i know.

  2. #2Nige2022-09-10 12:08

    If you come across a 3304 from whatever source and want to know how compatible it is with your excavator engine please supply both engine Serial Numbers and I can check how they cross-reference to one another. EDIT: Unless you get an engine from another 215B excavator it is highly unlikely that any replacement will drop straight in without making any changes to it.

  3. #3Member2023-01-17 10:14

    Here is the information from my setup 3304 48V45188 6A6501

  4. #4Nige2023-01-17 14:08

    Arrgt 6A6501 comes back as "no information exists". Can you post a photo of the data plate.?

  5. #5Member2023-01-17 15:21

    Here is the data plate

  6. #6kshansen2023-01-17 18:36

    Just thinking out loud here but were some 3304's built with direct injection as opposed to pre-chamber heads? I know the 3306 came both ways over the years. I'm guessing that may have an effect on if the fuel system off the original engine would adapt to the replacement engine. Just assuming pistons in a pre-chamber engine would be different from a direct injection engine. Not having any direct experience with the 3304's I would think that other than fuel system other things would be an easy swap from original to replacement engine. Thinking front cover, oil pan and oil pump, flywheel and flywheel housing, and exhaust manifold and turbo.

  7. #7mitch5042023-01-18 00:12

    I had a 3304 in a 1978 D4e, and in a 1989 215c. They were almost different engines. The d4e was NA, PC, with a spacer plate and a scroll pump. The 215c was turbocharged, no pre-combustion chambers, and no spacer plate, and a sleeve metering pump.

  8. #8OzDozer2023-01-18 02:15

    If you look up the engine parts catalog for the 48V1-up prefix engines, the Arrangement number and all associated parts will be listed inside the catalog. The Form number for this engine catalog is UEH0826S.

  9. #9Member2023-01-18 06:09

    Yea no experience here either specially on the CAT side of things for sure. I do have an option for a 3304 PC engine that is in a loader but going to call CAT today see if i swap all my parts over would it work or not.

  10. #10kshansen2023-01-18 07:23

    It might be better if you just keep this discussion to one thread as having two can cause a lot of confusion for people trying to help.

  11. #11Nige2023-01-18 07:31

    Don’t hold your breath. The answer will probably be that they have no idea because both engines are of an age where there is no accurate information available on the online system. Both these engines date back to the days of the dealers using microfiche and all that information went into a dumpster decades ago.

  12. #12OzDozer2023-01-18 08:46

    Fortunately, I've got a heap of "obsolete" microfiche with vast amounts of this type of information on them. But simply acquiring the parts catalogs books for each engine, and comparing the component changes between the two arrangement numbers, is the best way of figuring out how many component differences there are. Then you have to track down component design changes (and interchangeability), where a new P/No has been applied. The Caterpillar NPR (Numerical Parts Record), which I have on microfiche, is the only way you can track down part number changes and modifications, and relate them to equipment S/No fitment. In the case of comparing two totally different 3304 engines, one PC and the other DI, and one turboed and one N/A - then the differences in internal components would be huge. Many N/A engines don't have piston cooling jets, and they're necessary for turbo engines. Plus there's differences in compression ratio and degrees of timing advance between N/A and turbo engines.

  13. #13kshansen2023-01-18 09:13

    Glad! you brought that up, it slipped my mind and could be a major problem!

  14. #14mitch5042023-01-18 13:24

    Yeah, I seriously doubt you could just switch external parts and get anything like a good result. Even if you lucked up and got something okay, I am SURE it wouldn't last.

  15. #15Nige2023-01-18 18:54

    OK, so down the rabbit hole we go............... All the following information is from the online database. I make no claims regarding its accuracy. First up your engine S/No 48V45188 does NOT appear to be the original engine for your 215B. it is not associated with any specific machine Serial Number Then as a further complication the 6A6501 engine arrangement shown on the engine data plate was only ever used in 76U-prefix 225 excavators. NPR describes it as "OFMOD" (see below). I have no idea what that is, does anyone else know.? So maybe we have to take another step back before moving forward. What is the Serial Number of the excavator.?

  16. #16kshansen2023-01-18 19:50

    I noticed that but was not sure what that could mean, as I'm not that familiar with some of the things on SIS.

  17. #17Nige2023-01-18 19:54

    Most times engine Serial Numbers tie up with machine S/Nos. Just odd occasions they do not then the chances are either the engine was built as a "spare" for the Parts system, or somehow the engine S/N data got missed off the database for that particular engine. Need the machine S/N to go at it from a different direction. Funnily enough I tried a bunch of 48V engine S/Nos around the 48V45188 of the OP's and NOT ONE of them showed up on the system. That is f'kin weird........ I'm just wondering if that "OFMOD" in the NPR is something to do with a Forestry modification.......??

  18. #18Member2023-01-20 07:36

    so yes that makes since idk why it didn't click to me originally when buying parts for this, but this is not the original engine in it. They person i bought it from did not say what it come out of just that i had more power and was turbo engine. So it showing that engine for a 225 kinda makes sense now to me. serial number on the machine is 96L2022 with the old engine serial was 48V39623 wish did ask the question would of clicked to me sooner lol Even the CAT dealer i have local for getting parts has a hard time pulling anything up for this 215 B, they always end up adding a 3 to the serial of the machine to pull anything up on it.

  19. #19Nige2023-01-20 10:23

    That makes no sense. The current system requires 5 digits after the 96L S/N prefix, so your machine would be written as "96L02022" to look for parts & service information. Simples......... Nice of you to wait until now to tell everybody. Oh, and with a 96L prefix your "215B" is actually a 215.

  20. #20Member2023-01-20 10:39

    Picture of plate for machine, good to know of course. and sorry really didn't click and plus just thought it was close to the same since so hard to find anything to swap with it now.

  21. #21Nige2023-01-20 11:51

    OK, so the original engine arrangement in 96L2022 was a 5C-0245 which is a non-turbo 3304PC engine. I would suggest that when looking for a replacement engine this (or something close to it) is the arrangement you should be looking for. Back to your question of the suitability of a 3304 PC engine of arrangement 7N-1522. That engine is listed as 100 BHP at the flywheel. The original 5C-0245 engine arrangement was 85 BHP measured the same way. So power-wise they are not far apart. 5C-0245 and 7N-1522 engine arrangements share a lot of common components. The 7N1522 has an air compressor and a transnmission oil cooler that would not be required for excavator installation. Apart from that there are some significant differences - crankshaft, flywheel housing & flywheel, cylinder block & cylinder head, and FIP/governor are the main ones. Obviously for a complete engine a number of them are moot points, but the crankshaft being different might mean it is not possible to install the correct flywheel and flywheel housing to mate up to the hydraulic pump drive. I can't figure out whether it will or won't fit.

  22. #22OzDozer2023-01-21 03:37

    Nige - OFMOD is another one of those wondrous Cat abbreviations - "Order from Machine Order Division".

  23. #23OzDozer2023-01-21 03:46

    There's a 3304 PC engine listed on Machinery Trader in Pennsylvania. Listed as a "good runner" for US$3999. You'd have to call to see if it's still available. https://www.machinerytrader.com.au/...Da9VdhVVhskILdSbhXrSoqrsgVYixqBQaAmjkEALw_wcB

  24. #24Nige2023-01-21 08:22

    Thank you. I knew someone would know. While on a roll, what about OFIOD.?

  25. #25OzDozer2023-01-21 08:34

    Hi Nige - OFIOD = "Order From Industrial Order Division".

  26. #26Nige2023-01-21 09:42

    That makes sense now. The difference between a "Machine Engine vs Industrial Engine".

  27. #27OzDozer2023-01-21 19:18

    Cat have always built engines for "applications", but the name of the application changed often. In the late 1930's and 1940's, it was Tractor, Electric Set, Automotive (D468 and D312), Marine and Power Unit (Industrial). The D468 and D312 Automotive engines had a short run - introduced in 1939, they were eliminated from production in 1942 and 1943 as Cat ramped up D7 and D8 production for the War. Then in the 1950's and 1960's, the names became Industrial, Tractor, Fire pump, Marine, and Truck engine applications. Truck engines returned in numbers in the late 1950's. In the 1970's, Truck and Tractor applications appear to have become "Vehicular" applications. It seems this occurred with the change to Engine Model and Arrangement numbers. Nowadays, the list of applications appears to have exploded like names for bureaucracy depts. Once Caterpillar Tractor Co became Caterpillar Inc in 1986, and started buying every company that had a good product and then calling it a Caterpillar line, the applications increased enormously. We've even got Caterpillar lawnmowers! Along with all the company takeovers, came the increased level of definitions. Even Marine engines are now broken up into Marine, Low Speed, and Marine, High Speed.

  28. #28Maurice Muenks2023-01-29 03:25

    I did some checking and the machine build date was March 12 1979, So here is what I know about that era of cat engines. Cat was trying to get their equipment to better conform to EPA, so they were trying different things. The combustion chamber engines have the capsule nozzles in them and a excellent pressure test was 500-600 psi and when the pressure got below 300 PSI you replaced them, and the turbo charged engine pistons had a metal heat plug where the fire out of the precombustion chamber hit. The natural asperated engine did not have the heat plug. The directed injected engines have a pencil type injector which has a much higher pressure and a cup piston for the fire to roll around in and you can usually tell by the heavier injection scroll pump. If it was me I probably put whatever engine I could find and swap front and rear housings if need be, put it in and run it. Where a person gets in trouble is trying to take two to make one. If you find a n/a engine keep it n/a if you put it in there. It might be a little doggy but you won't have to worry about the engine coming apart and you won't have to worry about fuel settings piston cooling orifices. The other thing you could do is have a good welder to weld the block if there isn't any water or oil passage damage. I have repaired front 4 wheel drive axles on backhoes with some rod that worked real good. The price wasn't just too bad if you are a millionaire, if I remember right it was about $ 1250.00 for 50 lbs. Maurice