Speedometer Driven Gear
InfoVehicle Info Needed
ACDELCOPART NUMBER: 065-3987921

Speedometer Driven Gear

$1899
ShippingShips on 09/11/2026
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Speedometer Gears
Speedometer Driven Gear
  • 1982-1988 Buick, Chevy, GMC, Oldsmobile & Pontiac
  • Material: Nylon
  • Color: Red
  • Retainer Clips Included: No
  • Sold Individually

    ACDelco 3987921 Speedometer Driven Gear is designed as an application-specific service replacement that supports proper fit, function, and system integration. Designed as an application-specific service replacement for proper vehicle-system fit and function. Verify vehicle fitment and system configuration before installation.

    ACDelco 3987921 Features:

    • Supports dependable operation when installed in the specified vehicle application
    • Service replacement gear for compatible applications

    ACDelco 3987921 Fitment:

    • 1982-1984 Buick Electra/LeSabre/Regal & Chevy Camaro/Caprice/G10/G20/G30/Impala & GMC G1500/G2500/G3500 & Oldsmobile Custom Cruiser/Cutlass Calais/Cutlass Supreme/Delta 88 & Pontiac Bonneville/Firebird/Grand Prix
    • 1982-1983 Buick Estate Wagon & Chevy Malibu/Monte Carlo & Oldsmobile 98/Cutlass Cruiser & Pontiac Grand LeMans
    • 1982 Chevy El Camino
    • 1982-1988 Chevy S10 & GMC S15
    • 1983-1984 Pontiac Parisienne
    • 1985-1988 Chevy Astro & GMC Safari
    • 1985-1986 Chevy C10/C10 Suburban/C20/C20 Suburban/C30 & GMC C1500/C1500 Suburban/C2500/C2500 Suburban/C3500
    • 1987 Chevy R10/R10 Suburban/R20/R20 Suburban/R30 & GMC R1500/R1500 Suburban/R2500/R2500 Suburban/R3500

    ACDelco 3987921 Notes:

    • Verify vehicle application, position, and system configuration before installation.
  • Part TypeSpeedometer Driven Gear
    BrandACDELCO
    Package Height0.7
    Package Width0.8
    Package Length2.2
    Weight0.01 PG
    Part CategoryReplacement Parts
    Product TypeSpeedometer Driven Gear
    Programming RequiredNo
    Retainer Clips IncludedNo
    Width (Mm)9.017
    Tooth Quantity21
    ColorRed
    Width (In).355
    MaterialNylon
    Height (In)1.51
    Length (In)2.8
    Features & Benefits - Bullet 2GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
    Features & Benefits - Bullet 3GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
    Features & Benefits - Bullet 4GM regularly updates production and service part designs to integrate new materials and technologies
    Part FitmentDirect Fit
    Product DescriptionGM Genuine Parts Speedometer Driven Gears are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). &#9888;<b> WARNING:</b> Cancer and Reproductive Harm - www.P65Warnings.ca.gov
    Weight (Lb).02
    Grade TypeOE
    Features &#38;#38; Benefits - Bullet 1Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
    Vendor Part Number3987921
    Package Qty1
    Package TypeEA
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