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MK31 Master Carburetor Repair Kit for Rochester Model B and BV Carburetors

For 1963-1968 Chevrolet, GMC, Oldsmobile and Pontiac cars and trucks. These carburetors use an accelerator pump with a round stem, length 2 13/16".

1957-1962 cars (2 3/4" pump) use kit MK33. Earlier carburetors with a flat stem pump use MK10A or MK10B.

Made in USA. Ethanol compatible. Includes instructions.Includes original type Fillister head 12-28 thread screws for the airhorn.

Ordering Information

Price: $39.95

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Rochester BV carburetor
Typical carburetor serviced with this kit

Kit Contents

Master kit for Rochester Model B carbs 1963-1968

 

  • Gaskets
  • Complete Viton accelerator pump assembly (replaces aftermarket leather pumps)
  • Needle/seat
  • Pump return spring
  • Pump duration spring
  • Power piston spring
  • Power valve spring and check ball
  • Accelerator pump check ball and spring
  • Airhorn screws - correct original Fillister head, 10-32 thread
  • Idle mixture screw and spring
  • Clips and retainers
  • Brass float
  • Instructions

All parts are ethanol-compatible. Services carburetors from 1963-up on Chevrolet-built 6 and 4 cylinder engines with 2 13/16" long accelerator pump. Other carburetors with a slightly shorter pump (2 3/4") are serviced with MK33.

Over the years, some of the original pumps have been serviced with an aftermarket leather pump. The pump in our kit is the original OEM type - with updated, ethanol resistant Viton rubber - and replaces the leather pumps.

Carburetor service manual
Carburetor service manual
- detailed service manual covering theory, operation and rebuilding of all Rochester Model B carburetors from 1950-up.
Choke pull off for Rochester Model BV carburetors
Rochester BV choke pull off
 

Carburetor Numbers Serviced With This Kit

7016431
7016507
7016722
7019061
7019062
7020062
7023000
7023003
7023004
7023005
7023011
7023013
7023017
7023021
7023105
7023108
7024000
7024001
7024009
7024082
7024164
7024166
7024184
7025000
7025003
7025004
7025005
7025087
7025105
7025108
7025167
7025168
7025182
7026011
7026017
7026019
7026027
7026028
7026029
7026083
7026085
7026167
7026168
7026169
7027009
7027011
7027029
7027167
7027168
7028168
7036009
7036167
7036168
7036680
7037009
7037167
7037168
7041860
7041861
17052529

1963-up Rochester model B carbs with a round stem pump, overall length of 2 13/16" are serviced with this kit. 1957-1962 carbs with a 2 3/4" pump take our kit MK33. Earlier carbs take MK10B or MK10A.

 

Services Model B (manual choke) and Model BV (manifold mounted choke) carburetors starting in 1963:

CHECKER 1964-1966
CHEVROLET 1963-1967
GMC 1963-1967
OLDSMOBILE 1966
PONTIAC 1964-1968
STUDEBAKER 1965-1966