Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Connect one-on-one with {0} who will answer your question

My truck has a cat c7 with 210 hp and a serial # SAP07075.

Customer Question
My truck has a cat...
My truck has a cat c7 with 210 hp and a serial # ***** Does a new engine need to have a SAP serial # ***** can you use one with KAL or WAX? Whats the difference between the prefix of these numbers?
Submitted: 6 years ago.Category: Medium and Heavy Trucks
Show More
Show Less
Ask Your Own Medium and Heavy Trucks Question
Answered in 1 hour by:
1/11/2016
Technician: Cat Man, Cat Engine Expert replied 6 years ago
Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 10,344
Experience: I am ASE Master Truck Certified.
Verified

Thanks for asking your question. I will try and help you out.

No it does not need to be an SAP. There is no difference in the WAX, SAP, or KAL.

Cat made thousands of C7 engines. The reason there several serial number prefixes is cause they ran out of numbers. They can only make 99,999 of each. So when they got to KAL99999, they started with WAX00001. When they made 99,999 of them. They went to SAP.

Please reply back if you need more help or have more questions. I am happy to assist.

Ask Your Own Medium and Heavy Trucks Question
Technician: Cat Man, Cat Engine Expert replied 6 years ago

Hey. I just wanted to see how things were going. Please let me know if you need more help. I am happy to assist. If my information was helpful, please leave a good or higher rating so that I receive credit. Thanks.

Ask Your Own Medium and Heavy Trucks Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Cat Man Your Own Question
Cat Man
Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 10,344
10,344 Satisfied Customers
Experience: I am ASE Master Truck Certified.

Cat Man is online now

Related Medium and Heavy Trucks Questions
If I changed all the injectors on the engine why does it
If I changed all the injectors on the engine why does it still not run. It keeps shooting out white smoke. Engine is a Caterpillar C7 2005… read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
80 satisfied customers
How many problems will I run into swapping a cat c7 from a
How many problems will I run into swapping a cat c7 from a 2005 Freightliner M2 106 Utility Truck to a 2007 ford f650 that had a factory cat c7?… read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
80 satisfied customers
Looking to re rate my cat c7 in my 2005 Ford f650. I've seen
looking to re rate my cat c7 in my 2005 Ford f650. I've seen in info on rerate families. How do I identify what relate family my engine is in? … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
I have a c7 230 hp that i am up grading to 330hp, i have the
i have a c7 230 hp that i am up grading to 330hp , i have the turbo and injectors but can not find the damper part # that i will need , can you help with the viscous damper for a 330 hp c7 ? … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
I have a 2005 sterling with a c7. The ecm recently went bad.
I have a 2005 sterling with a c7. The ecm recently went bad. I bought a used one from a used truck parts place. The one I bought is a wax 300hp and mine was a kal 210 hp but the guy said it would work… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,325 satisfied customers
I swapped a 2004 c7 engine kal19660 for a 2006 engine
i swapped a 2004 c7 engine kal19660 for a 2006 engine wax20295 and now i have a low coolant lite and check engine lite on this chassis 34cn11397 is also equiped with a medallion info center and the tr… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
What is the pin number for the throttle body on a c7 wiring
What is the pin number for the throttle body on a c7 wiring diagram? … read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,325 satisfied customers
Just want to know more about the Atmospheric Pressure
Just want to know more about the Atmospheric Pressure Sensor. What should a cat c7 atmospheric pressure sensor read? Should the reading change as RPM increase? I am using a BlueFire adapter to read pr… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have a 05 300 Hp C7 KAL and replacing it with a 2010 C7
I have a 05 300 Hp C7 KAL and replacing it with a 2010 C7 370hp RMF can I use The 300 horse ECM because I'm told that The RMF is 24v and wanted to make sure there wouldn't be any damage to the new mot… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I am swapping a c7 2005 with a 3126 1999-2000. I have all
second opinion] Hi I am swapping a c7 2005 with a 3126 1999-2000. I have all the harness, sensors and ECM on both engines. Both trucks runs. The C7 is on its way out. Will the cab, ignition switch and… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
Dash lamps flashing on/off cat et cannot connect to ecm but
dash lamps flashing on/off cat et cannot connect to ecm but detects it. no start … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
Have a bad c7 kal engine what is the difference between it
have a bad c7 kal engine what is the difference between it and a fmm c7...i know that they are military spec & seem to have higher HP. Is it possible/difficult to make it same as a kal. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have a c-7 300 hp. Have chance to buy new c-7 330 hp two
I have a c-7 300 hp. Have chance to buy new c-7 330 hp two different serial numbers how do I find out if all going to work … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have a 2007 Freightliner M2 with a Cat C7. I purchased a
I have a 2007 Freightliner M2 with a blown Cat C7. I purchased a 2006 C7 out of a school bus. What do I need to do to make this engine work? … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
Bud. AJ here. I have a question for u. I'm trying to do a
Hey bud. AJ here. I have a question for u. I'm trying to do a c-7 engine swap. Taking a kal 210 hp engine out of a ford and got a wax 300hp engine to replace it. My question is I know the 300 hp wax h… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Bud. I have a 210hp c7 kal engine in a ford truck and want
Hey bud. I have a 210hp c7 kal engine in a ford truck and want to overhaul it but would like to get 300hp out of it I know pistons, injectors, turbo are different along with calibration. What all do n… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Cat c7 swap to 3126 ideas, can I replace a 2006 cat c7 (wax)
can I replace a 2006 cat c7 (wax) (kal) with a 3126 engine complete Need to change wiring harness? … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
Hi Cat Man, you mentioned the fmm c7 cat engine being a military
Hi Cat Man, you mentioned the fmm c7 cat engine being a military issue what is the cat mdl c7 engine for? Thanks,Daron… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Daniel Wilson

Daniel Wilson

6,062 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

10,344 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

5,115 satisfied customers

worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

Certified Truck/Bus Technician

2,756 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

Curtis B.

Curtis B.

Technician

1,947 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

cumminsdr

cumminsdr

Mechanic

1,886 satisfied customers

All types of Cummins applications

Chris (aka-Moose)

Chris (aka-Moose)

Technician

641 satisfied customers

24 years of experience diagnosing & repairing

< Previous | Next >

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x