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Pioneer Automotive

Pioneer Race Balancers 872021 Harmonic Balancer, Race, Internal Balance, Steel, Black, Chevy, Small Block, 4.3L V6, Each

SKU: PIO872021

Harmonic Balancers
Pioneer Race Balancers 872021 Harmonic Balancer, Race, Internal Balance, Steel, Black, Chevy, Small Block, 4.3L V6, Each

Pioneer Automotive

Pioneer Race Balancers 872021 Harmonic Balancer, Race, Internal Balance, Steel, Black, Chevy, Small Block, 4.3L V6, Each

SKU: PIO872021

Harmonic Balancers
A$866.31
LOW STOCK! Est Ship 4-7 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
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Description

These Pioneer race balancers bring the advantages of bonded rubber to high-revving race and street/race applications where an SFI-approved balancer is required. Each balancer features a precision CNC-machined AUSI 1045 steel center bonded to an equally strong steel inertia ring. The advanced design makes these balancers very lightweight for all-steel products. The steel inertia ring on these models is positively protected against forward and backward movement and has the added assurance of bonded rubber to eliminate spinning. Every Pioneer race balancer features easy-to-read, computer-etched timing marks.

Part Type

SBC 6.25 Harmonic Balance - SFI

Data: v4.2 - Upd: 2026-10-03 00:46:32

Specifications

Product Attributes - Brand
Pioneer Automotive
Product Attributes - Manufacturer's Part Number
872021
Product Attributes - Part Type
Harmonic Balancers
Product Attributes - Product Line
Pioneer Race Balancers
Product Attributes - UPC
727993101179
Product Attributes - Engine Balance
Internal
Product Attributes - SFI Rating
SFI 18.1
Product Attributes - Degree Markings
Yes
Product Attributes - Degree Marking Range
50 BTDC to 10 ATDC
Product Attributes - Outside Diameter (in.)
6.100
Product Attributes - Crankshaft Pulley Bolt Hole Quantity
Three
Product Attributes - Keyway Quantity
One
Product Attributes - Harmonic Balancer Material
Steel
Product Attributes - Harmonic Balancer Construction
Elastomer
Product Attributes - Harmonic Balancer Color
Black painted
Product Attributes - Mounting Hardware Included
No
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
TDC mark is located 10 degrees from keyway. Weight is 5.50 lbs.

Reference Information

Brand Name/s Pioneer Automotive
StreetFX SKU pio872021
SFX Item ID 5119519
Supplier Item Code 5119519
Manufacturer SKU 872021
Manufacturer UPC 727993101179
Alternative References 4.3L, V6

Compatibility

Application Data
  • MakeBUICK
    ModelCENTURY
    Beginning Year1977
    Ending Year1977
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • MakeBUICK
    ModelCENTURY
    SubmodelCUSTOM
    Beginning Year1977
    Ending Year1979
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • MakeBUICK
    ModelCENTURY
    SubmodelLIMITED
    Beginning Year1978
    Ending Year1980
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • MakeBUICK
    ModelCENTURY
    SubmodelSPECIAL
    Beginning Year1978
    Ending Year1979
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • MakeBUICK
    ModelCENTURY
    SubmodelSPORT
    Beginning Year1978
    Ending Year1978
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • MakeBUICK
    ModelLESABRE
    Beginning Year1978
    Ending Year1978
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • MakeBUICK
    ModelLESABRE
    SubmodelCUSTOM
    Beginning Year1978
    Ending Year1978
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • MakeBUICK
    ModelREGAL
    Beginning Year1977
    Ending Year1980
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • MakeBUICK
    ModelREGAL
    SubmodelLIMITED
    Beginning Year1978
    Ending Year1980
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • MakeBUICK
    ModelROADMASTER
    Beginning Year1991
    Ending Year1991
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • MakeBUICK
    ModelROADMASTER
    Beginning Year1992
    Ending Year1993
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
  • MakeBUICK
    ModelROADMASTER
    SubmodelESTATE WAGON
    Beginning Year1991
    Ending Year1991
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • MakeBUICK
    ModelROADMASTER
    SubmodelESTATE WAGON
    Beginning Year1992
    Ending Year1993
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
  • MakeBUICK
    ModelROADMASTER
    SubmodelLIMITED
    Beginning Year1992
    Ending Year1993
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
  • MakeBUICK
    ModelSKYLARK
    Beginning Year1977
    Ending Year1979
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • MakeBUICK
    ModelSKYLARK
    SubmodelCUSTOM
    Beginning Year1978
    Ending Year1979
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • MakeBUICK
    ModelSKYLARK
    SubmodelS
    Beginning Year1977
    Ending Year1979
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • MakeBUICK
    ModelSKYLARK
    SubmodelSR
    Beginning Year1977
    Ending Year1977
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • MakeCHEVROLET
    ModelBEL AIR
    Beginning Year1955
    Ending Year1957
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size4.3L/265
  • MakeCHEVROLET
    ModelBEL AIR
    Beginning Year1957
    Ending Year1967
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size4.6L/283
  • MakeCHEVROLET
    ModelBEL AIR
    Beginning Year1962
    Ending Year1969
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.4L/327
  • MakeCHEVROLET
    ModelBEL AIR
    Beginning Year1968
    Ending Year1968
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/307
  • MakeCHEVROLET
    ModelBEL AIR
    Beginning Year1969
    Ending Year1975
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1962
    Ending Year1969
    Engine TypeV8
    Liter5.3
    CID327
    CC5358
    Engine FamilyChevy small block Gen I
    Engine Size5.3L/327
  • MakeCHEVROLET
    ModelBISCAYNE
    Beginning Year1958
    Ending Year1967
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size4.6L/283

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