Imperial Web Pages in text above a row of 50-80's classic Imperial cars

Imperial Fuel System Part Numbers




For additional information, read the 1953 - 1961 Chrysler and Imperial parts number manual which includes numbers for the fuel systems on these model years.


CARBURETOR KITS AND PARTS

NAPA - Echlin

Year Carb Type Kit Number Float
1954-56 Carter WCFB 2-5039A
1957-67 w/o CAP* Carter AFB 2-5582
1966-67 w CAP* " 2-5498
1968 Carter - AVS 2-5386
1969-71 " 2-5457
1967-71 Holley- 4160 2- 5348
1972 " 2 -5587
1973 Carter Thermoquad 2- 5584


FUEL PUMPS

Napa - Carter Numbering

Year Engine Part Number
1954-56    
1957-58    
1959-63 413 M3271
1964-68 413-440 M3672
1969-1971 440 M4589
1972 440 M6191
1973-74 440 M6935

NOTE: If you have a glass bowl or older rebuildable type, and you wish to keep it on your Imperial, you may need to send it to a rebuilder or search for a NOS unit thru a specialty vendor.

NOTE: All 413-400-440 Engines may physically use the same fuel pump as the mounting dimensions are the sameand the pumps will fit. The location and size of the plumbing fittings MAY NOT be the same, otherwise they will work satisfactorily.



1971 - 1974 Carter Thermoquad Numbers

Here are the Carter TQ number that I was able to lift from Govier's interchange book. The numbers go from 1971 to 1974.  The letters listed under Models refer to carline (First letter of the VIN).

Number Year Engine Transmission Remarks Models
4972S 1971 340 Manual ---- VLBJRW
4973S 1971 340 Automatic ---- VLBJRW
6090S 1972 400 Automatic ---- RWPD
6138S 1972 340 Manual ---- VLBJRW
6139S 1972 340 Automatic ----- VLBJRW
6140S 1972 400 Manual HP RW
6165S 1972 400 Manual HP w/air pump RW
6166S 1972 400 Automatic HP w/air pump RW
6212S ---- 340 ----- ---- MARINE
6318S 1973 340 Manual ---- VLBJRW
6319S 1973 340 Automatic ---- VLBJRW
6320S 1973 400 Manual HP RW
6321S 1973 400 Automatic HP RWPD
6322S 1973 440 Automatic LP PDCY
6324S 1973 440 Manual HP RQPDC
6339S 1973 340 Manual w/N98 VLBJRW
6340S 1973 340 Automatic w/N98 VLBJRW
6341S 1973 400 Manual HP w/N98 RW
6342S 1973 400 Automatic HP w/N95-N98 RWPD
6394S 1972 340 Automatic Export L
6410S 1973 440 Automatic LP w/N98 PDCY
6411S 1973 440 Automatic HP w/N95-N98 RWPDC
6452S 1974 360 Manual HP VLBJRW
6453S 1974 360 Automatic HP VLBJRW
6454S 1974 360 Manual HP Calif VLBJRW
6455S 1974 360 Automatic HP Calif VLBJRW
6456S 1974 400 Manual HP RW
6460S 1974 440 Automatic LP Early PDCY
6461S 1974 440 Automatic LP Calif Early PDCY
6462S 1974 440 Automatic HP Early RWPDC
6463S 1974 440 Automatic HP Calif Early RWPDC
6488S 1974 360 Automatic ---- RWPDC
6489S 1974 400 Automatic HP Early RWPDC
6503S 1974 400 Automatic HP Export W
9000S 1974 318 Both Export D
9013S 1974 360 Automatic Late RW
9014S 1974 400 Automatic HP Late RWPDC
9015S 1974 440 Automatic HP Late RWPDC
9016S 1974 440 Automatic HP Calif Late RWPDC
9023S 1974 440 Automatic LP Late PDCY
9024S 1974 440 Automatic LP Calif Late PDCY
9801S 1974 380 Automatic Perf & Off Road 800 CFM

Many thanks to Brad Hogg for supplying us with this information.



NOTES ABOUT THESE PART NUMBERS:

Due to the fact that Chrysler no longer produces many of these parts and that Chrysler part numbers are quite often superseded or not in the Chrysler parts system any longer, aftermarket numbers are used. If enough current and correct Chrysler numbers are available, they can be added for what is still available from Chrysler.

I have arbitrarily chosen NAPA parts for the aftermarket, simply because of the availability of NAPA outlets and the fact that I have previously worked in their parts system. This IS NOT an expressed or implied advertisement or endorsement to use these products. MOST PARTS OUTLETS CAN INTERCHANGE THESE NUMBERS IF YOU DO NOT HAVE A LOCAL NAPA OR PREFER NOT TO PURCHASE FROM THEM.

IMPORTANT: ALL THESE REFERENCES HAVE BEEN ONLY SEARCHED FOR IMPERIAL OR NYB AS APPLICABLE. WHEN RESEARCHING THESE PART NUMBERS I SEARCHED FOR IMPERIAL, MODEL YEAR, ENGINE SIZE AND ANY OTHER NECESSARY DATA PERTINENT FOR THAT PARTICULAR PART.

FOR EACH GROUP OF PARTS THE SOURCE AND BRAND WILL BE LISTED, AS WELL AS ANY IMPORTANCE OF THE PART NUMBERS USED. IN THE CASE OF REBUILDABLE PARTS OR PARTS NOT EXPRESSLY NAPA- NOTES WILL INDICATE THE USE OF SUCH NUMBERS AND SOURCE.

Now when some uninterested, uncaring and uninformed counterman says " they didn't make that in that year......" or " its not listed...." you will have the upper-hand.

NOTES ON REBUILDABLE PARTS:

Many times a part is not available because the rebuilder has no "cores" from which to remanufacture a part from. It is usually possible and sometimes cheaper to send your part in - if you can be without the vehicle for the time required. Most of these parts are rebuilt by major suppliers to parts stores, regardless of the individual outlet. ( It is not uncommon for competing retail stores to be supplied by the same rebuilder) Some parts require the services of smaller specialized rebuilders, especially for vintage or very rare applications...


The following is a non inclusive list of many of the parts that can be easily rebuilt today:
Alternators, Generators, Starters, Water Pumps, Power Brake Boosters, Carburetors, Distributors, Brake Shoes, Master and Wheel Cylinders, Brake Calipers, Air Conditioning Compressors, Power Window Motors, Convertible Top Motors and Cylinders, Power Steering Pumps and Gearboxes, Wiper Motors, Motor and Trans Mounts., Fuel Pumps, Harmonic Balancers, Driveline Supports, Clutches and of course - Engines and Transmissions.


So if all else has failed, find a local or larger scale rebuilder either on your own or thru a parts store. DON'T SCRAP THE PART - if you have patience you can usually find someone to help.


Send us your feedback, and come join the Imperial Mailing List - Online Car Club.
This page was last updated 20 January 2026.


Enjoy our site? Please keep the Online Imperial Club going with your donation by check or with the convenience of Paypal.