NOS UNOPENED Radio Fader BALANCE VOLUME Control Knob #400537 OLDS CHEVY GM
Description:
GM 400537 — Dash / Heater Control Knob (NOS GM) Genuine GM control knob used on late‑1960s through 1970s Chevrolet, Pontiac, Oldsmobile, and Buick models.
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Part #: 400537
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Group: 9.670
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Type: Dash / heater / vent control knob
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Fits: 1968–1974 GM passenger cars & 1967–1972 GM trucks (varies by model)
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Condition: New old stock, sealed GM packaging
CHEVROLET
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1968–1974 Chevy passenger cars (heater/vent controls)
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1967–1972 C/K trucks (accessory & heater control knob variants)
PONTIAC
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1968–1972 LeMans / Tempest / GTO (heater control knob family)
OLDSMOBILE
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1968–1973 Cutlass / F‑85 (dash control knob)
BUICK
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1968–1972 Skylark / GS (heater/vent knob)
NOTES
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GM reused knob castings across divisions; exact appearance varies slightly by trim.
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The part number on the bag is the service part, not always the casting number.
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