Pioneer Cables 747016 Automatic Transmission Modulator Valve

Brand Pioneer Cables 747016
Gasket Or Seal Included Yes
Fits GMC, Chevrolet, and Pontiac · 181 vehicles

Exact fit replacement. No-compromise part for straightforward installation.

Transmission component. Built for automatic transmission service and function.

Gasket or seal included for a more complete install.

Cross-references Dorman - HELP 42945, Walker Exhaust 41245 and 14699 for the same application. See all 12.

$56.70Free shipping
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Automatic Transmission Modulator Valve for Classic GM

Pioneer Cables 747016 is an automatic transmission modulator valve built as an exact-fit replacement for select classic Chevrolet and GMC applications. It includes a gasket or seal, helping support a cleaner service installation on vehicles such as Chevrolet Camaro, Impala, Nova, and GMC Jimmy.

Key Features

  • Automatic transmission modulator valve for transmission hard part service
  • Exact-fit replacement from Pioneer Transmission Components
  • Gasket or seal included
  • Direct replacement for select 1962-1982 Chevrolet and GMC applications
  • Cross-references Dorman - HELP 42945 and Walker Exhaust 41245 for the same application

Product Details

This Pioneer Cables 747016 modulator valve is made for select automatic transmissions that use a 2-piece modulator valve design. It is listed across a wide range of Chevrolet and GMC vehicles, including Chevrolet Bel Air, Camaro, El Camino, Impala, Monte Carlo, Nova, Corvette, and GMC K2500, along with Pontiac Firebird, LeMans, and Tempest applications. For buyers searching for a 747016 automatic transmission modulator valve or a replacement modulator valve for classic GM trucks and cars, this part provides a direct-fit service option.

Common Repair Uses

  • Restoring proper transmission vacuum modulation response
  • Replacing a leaking or worn modulator valve
  • Addressing harsh or inconsistent shift behavior
  • Servicing older GM automatic transmissions with a 2-piece modulator valve
  • Repairing transmission vacuum-related drivability concerns

Installation Notes and Tips

  • Verify the transmission uses a 2-piece modulator valve before ordering.
  • Review the application notes for adjustment range, EDA specification, and red-stripe identification where listed.
  • Some fitments note Powerglide-only usage or no-EGR requirements.
  • Confirm year, make, model, and transmission configuration against the vehicle before installation.

Quality Assurance

Pioneer Transmission Components are positioned as exact-fit replacement parts with no compromise in application matching. The included gasket or seal supports a complete service replacement for the listed vehicles.

This part fits 181 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1982GMCK25006.2LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 12.5-18 - EDA 1.75 - Red Stripe - w/o EGR
1982GMCK25005.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 12.5-18 - EDA 1.75 - Red Stripe - w/o EGR
1982GMCK25004.8LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 12.5-18 - EDA 1.75 - Red Stripe - w/o EGR
1973ChevroletBel Air4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1973ChevroletCamaro5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1973ChevroletEl Camino5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1973ChevroletEl Camino5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1973ChevroletImpala4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1973ChevroletMalibu5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1973ChevroletMalibu5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1973ChevroletMonte Carlo5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1973ChevroletNova4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1973PontiacFirebird4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1972ChevroletBel Air4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1972ChevroletCamaro5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1972ChevroletCamaro5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1972ChevroletCamaro4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1972ChevroletEl Camino5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1972ChevroletEl Camino5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1972ChevroletEl Camino4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1972ChevroletImpala4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1972ChevroletMonte Carlo5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1972ChevroletNova4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1972PontiacFirebird4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1972PontiacLeMans7.5LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1972PontiacLeMans6.6LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1972PontiacLeMans5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1972PontiacLeMans4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1971ChevroletBel Air5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1971ChevroletBel Air4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1971ChevroletBlazer——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1971ChevroletC10 Suburban——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1971ChevroletC20 Suburban——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1971ChevroletCamaro5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1971ChevroletCamaro5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1971ChevroletCamaro4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1971ChevroletCaprice5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1971ChevroletEl Camino5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1971ChevroletEl Camino5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1971ChevroletEl Camino4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1971ChevroletImpala5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1971ChevroletImpala4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1971ChevroletK10 Suburban——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1971ChevroletK20 Suburban——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1971ChevroletMonte Carlo5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1971ChevroletNova5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1971GMCJimmy——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1971PontiacFirebird4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1971PontiacLeMans——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletBel Air5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletBel Air4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletBlazer5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletBlazer5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletBlazer4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletC10 Suburban5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletC10 Suburban5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletC10 Suburban4.8LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletC10 Suburban4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletC20 Suburban5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletC20 Suburban5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletC20 Suburban4.8LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletC20 Suburban4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletCamaro5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletCamaro5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletCamaro4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletCaprice5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletEl Camino5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletEl Camino5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletEl Camino4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletImpala5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletImpala4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletK10 Suburban5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletK10 Suburban5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletK10 Suburban4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletK20 Suburban5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletK20 Suburban5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletK20 Suburban4.8LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletK20 Suburban4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletMonte Carlo5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970ChevroletNova5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970GMCG15/G1500 Van——N/A2nd Design; Use W/ 2-Piece Modulator Valve; Only Fits Powerglide
1970GMCG25/G2500 Van——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970GMCJimmy5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970GMCJimmy5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970GMCJimmy4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970PontiacFirebird5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970PontiacFirebird4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970PontiacLeMans——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1970PontiacTempest——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1969ChevroletBel Air——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1969ChevroletBlazer5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1969ChevroletBlazer5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1969ChevroletBlazer4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1969ChevroletC10 Suburban——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1969ChevroletC20 Suburban——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1969ChevroletCamaro——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1969ChevroletCaprice——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1969ChevroletCorvette——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1969ChevroletEl Camino——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1969ChevroletImpala——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1969ChevroletK10 Suburban——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1969ChevroletK20 Suburban——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1969ChevroletNova——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1969GMCG15/G1500 Van——N/A2nd Design; Use W/ 2-Piece Modulator Valve; Only Fits Powerglide
1969GMCG25/G2500 Van——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1968ChevroletBel Air——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1968ChevroletC10 Suburban5.4LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1968ChevroletC10 Suburban5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1968ChevroletC10 Suburban4.8LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1968ChevroletC10 Suburban4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1968ChevroletC20 Suburban5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1968ChevroletC20 Suburban4.8LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1968ChevroletC20 Suburban4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1968ChevroletCamaro——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1968ChevroletCaprice——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1968ChevroletCorvette——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1968ChevroletEl Camino——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1968ChevroletImpala——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1968ChevroletK10 Suburban5.4LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1968ChevroletK10 Suburban5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1968ChevroletK10 Suburban4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1968ChevroletK20 Suburban5.4LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1968ChevroletK20 Suburban5.0LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1968ChevroletK20 Suburban4.8LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1968ChevroletK20 Suburban4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1968GMCG15/G1500 Van——N/A2nd Design; Use W/ 2-Piece Modulator Valve; Only Fits Powerglide
1968GMCG25/G2500 Van——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletBel Air6.5LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletBel Air5.3LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletBel Air4.6LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletBel Air4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletC10 Suburban——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletC20 Suburban——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletCamaro5.7LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletCamaro5.3LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletCamaro4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletCamaro3.8LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletCaprice6.5LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletCaprice5.3LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletCaprice4.6LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletCaprice4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletCorvette5.3LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletEl Camino6.5LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletEl Camino5.3LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletEl Camino4.6LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletEl Camino4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletEl Camino3.8LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletImpala——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1967ChevroletK10 Suburban——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletK20 Suburban——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletMalibu5.3LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletMalibu4.6LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletMalibu4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967ChevroletMalibu3.8LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1967GMCG15/G1500 Van——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe; Only Fits Powerglide
1967GMCG25/G2500 Van——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1966ChevroletBel Air6.5LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1966ChevroletBel Air5.3LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1966ChevroletBel Air4.6LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1966ChevroletBel Air4.1LL6N/A2nd Design; Use W/ 2-Piece Modulator Valve
1966ChevroletCaprice6.5LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1966ChevroletCaprice5.3LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1966ChevroletCaprice4.6LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1966ChevroletCorvette5.3LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1966ChevroletEl Camino——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1966ChevroletImpala——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
1966ChevroletMalibu——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1965ChevroletBel Air——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1965ChevroletCorvette5.3LV8N/A2nd Design; Use W/ 2-Piece Modulator Valve
1965ChevroletEl Camino——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1965ChevroletImpala——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1965ChevroletMalibu——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1965GMCG1000 Series——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1964ChevroletBel Air——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1964ChevroletCorvette——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1964ChevroletImpala——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1964GMCG1000 Series——N/A2nd Design; Use W/ 2-Piece Modulator Valve
1963ChevroletBel Air——N/A2nd Design; Use W/ 2-Piece Modulator Valve; 2nd Design; Use w/ 2-Piece Modulator Valve
1963ChevroletCorvette——N/A2nd Design; Use W/ 2-Piece Modulator Valve; 2nd Design; Use w/ 2-Piece Modulator Valve
1963ChevroletImpala——N/A2nd Design; Use W/ 2-Piece Modulator Valve; 2nd Design; Use w/ 2-Piece Modulator Valve
1962ChevroletCorvette——N/A2nd Design; Use W/ 2-Piece Modulator Valve; ADJ 15-17 - EDA 1.95 - red stripe
Directly replaces or cross-references 12 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - HELP — 42945Walker Exhaust — 4124514699390548739054885638205FM2307MO11MV115TM12TM15VM115