HomeTransmission > Automatic Transmission ComponentsStandard Ignition TM-41 Automatic Transmission Vacuum Modulator
Part #: TM-41

Standard Ignition TM-41 Automatic Transmission Vacuum Modulator

⚙️ 154 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, Mercury, and Lincoln, Escort, EXP, Mustang, Taurus, Tempo, Thunderbird, Capri, Cougar, Grand Marquis, Lynx, Ranger, Bronco II, Marquis, F-100, Fairmont, LN7, Zephyr, Granada, LTD, Versailles, Bobcat, Monarch, LTD II, Ranchero, F-150, Mustang II, E-100 Econoline, E-100 Econoline Club Wagon, E-150 Econoline, E-150 Econoline Club Wagon, Maverick, and Comet
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Overview of Standard Ignition TM-41 Vacuum Modulator

The Standard Ignition TM-41 Automatic Transmission Vacuum Modulator is designed for reliable performance in select Ford, Lincoln, and Mercury vehicles. Engineered with a durable brass finish and two hose connectors, this modulator ensures precise vacuum control for automatic transmissions.

  • Constructed with a corrosion-resistant brass finish
  • Equipped with two hose connectors for secure vacuum line attachment
  • Compatible with multiple Ford, Lincoln, and Mercury models including Mustang, Bronco II, and Grand Marquis
  • Part number TM-41 for easy identification and replacement

Product Details and Attributes

This automatic transmission vacuum modulator features a brass part finish that offers enhanced durability and resistance to wear caused by heat and exposure to transmission fluids. The two hose connectors provide a stable and leak-free connection to the vacuum lines, which is critical for maintaining proper transmission shift timing and performance. The TM-41 modulator is specifically designed to fit a range of Ford, Lincoln, and Mercury vehicles such as the Ford F-150, Lincoln Continental, and Mercury Cougar, ensuring compatibility and ease of installation.

Compatible Vehicles and Applications

Compatible with various Ford, Lincoln, and Mercury models, this vacuum modulator is suitable for vehicles including but not limited to the Ford Mustang, Bronco II, E-150 Econoline, Lincoln Grand Marquis, and Mercury Marquis. The TM-41 modulator is ideal for owners seeking a direct replacement part that maintains factory specifications and transmission functionality.

  • Improves transmission shift quality by regulating vacuum pressure
  • Helps resolve delayed or harsh shifting issues
  • Prevents transmission slippage caused by vacuum leaks
  • Addresses rough idle or stalling related to vacuum modulator failure
  • Reduces transmission overheating due to improper modulation

Installation Notes and Tips

When installing the Standard Ignition TM-41 vacuum modulator, ensure that both vacuum hoses are securely connected to the two hose connectors to prevent leaks. It is recommended to inspect vacuum lines for cracks or damage and replace them if necessary. Proper alignment and torque specifications should be followed according to the vehicle’s service manual to avoid damage to the modulator or transmission components.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The TM-41 vacuum modulator undergoes rigorous quality control testing to ensure consistent operation. Warranty coverage details can be obtained from the product packaging or Standard Ignition’s official documentation.

BrandStandard Ignition
Part NumberTM-41
Part FinishBrass

This part fits 154 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersPositionNotes
1986FordEscortN/Aw/o High Altitude Emissions
1986FordMustang5.0LV8N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1986FordMustang3.8LV6N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1986FordTaurusN/Aw/o High Altitude Emissions
1986FordTempoN/Aw/o High Altitude Emissions
1986FordThunderbird5.0LV8N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1986FordThunderbird3.8LV6N/Aw/ Green Stripe
1986MercuryCapri3.8LV6N/A
1986MercuryCougar2.3LL4N/Aw/o High Altitude Emissions; w/ Single Diaphragm
1986MercuryCougar3.8LV6N/A
1986MercuryCougar5.0LV8N/Aw/o High Altitude Emissions; w/ Single Diaphragm
1986MercuryGrand MarquisN/Aw/o High Altitude Emissions
1986MercuryLynxN/Aw/o High Altitude Emissions
1985FordEscortN/Aw/o High Altitude Emissions; w/ Green Stripe
1985FordMustang3.8LV6N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1985FordMustang5.0LV8N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1985FordRanger2.0LL4N/Aw/ Green Stripe
1985FordTempoN/Aw/o High Altitude Emissions; w/ Green Stripe
1985FordThunderbird3.8LV6N/Aw/ Green Stripe
1985FordThunderbird5.0LV8N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1985MercuryCapri3.8LV6N/A
1985MercuryCapri5.0LV8N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1985MercuryCougar2.3LL4N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1985MercuryCougar5.0LV8N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1985MercuryCougar3.8LV6N/Aw/ Green Stripe
1985MercuryGrand MarquisN/Aw/o High Altitude Emissions
1985MercuryLynxN/Aw/o High Altitude Emissions; w/ Green Stripe
1984FordBronco II2.8LV6N/A
1984FordEscortN/Aw/o High Altitude Emissions; w/ Green Stripe
1984FordMustang5.0LV8N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1984FordRanger2.2LL4N/Aw/ Green Stripe
1984FordRanger2.0LL4N/Aw/ Green Stripe
1984FordRanger2.8LV6N/A
1984FordTempoN/Aw/o High Altitude Emissions; w/ Green Stripe
1984FordThunderbird3.8LV6N/Aw/ Green Stripe
1984FordThunderbirdN/Aw/ Green Stripe
1984MercuryCapri5.0LV8N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1984MercuryCougar2.3LL4N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1984MercuryCougar5.0LV8N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1984MercuryCougar3.8LV6N/Aw/ Green Stripe
1984MercuryGrand MarquisN/Aw/o High Altitude Emissions
1984MercuryLynxN/Aw/o High Altitude Emissions; w/ Green Stripe
1984MercuryMarquis3.8LV6N/Aw/ Green Stripe
1983FordEscortN/Aw/o High Altitude Emissions; w/ Green Stripe
1983FordF-1003.8LV6N/A
1983FordFairmont3.3LL6N/A
1983FordMustang5.0LV8N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1983FordRanger2.3LL4N/A
1983FordRanger2.0LL4N/Aw/ Green Stripe
1983FordRanger2.8LV6N/A
1983FordRanger2.2LL4N/Aw/ Green Stripe
1983FordThunderbird2.3LL4N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1983FordThunderbird5.0LV8N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1983MercuryCapri5.0LV8N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1983MercuryCougar5.0LV8N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1983MercuryGrand MarquisN/Aw/o High Altitude Emissions
1983MercuryLN7N/Aw/o High Altitude Emissions; w/ Green Stripe
1983MercuryLynxN/Aw/o High Altitude Emissions; w/ Green Stripe
1983MercuryMarquis3.3LL6N/Aw/ Green Stripe
1983MercuryZephyr3.3LL6N/A
1982FordEscortN/Aw/o High Altitude Emissions; w/ Green Stripe
1982FordF-1003.8LV6N/A
1982FordF-1004.2LV8N/A
1982FordFairmont4.2LV8N/A
1982FordFairmont3.3LL6N/A
1982FordMustangN/A
1982FordThunderbird3.3LL6N/Aw/ Green Stripe
1982FordThunderbird3.8LV6N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1982FordThunderbird4.2LV8N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1982MercuryCapri5.0LV8N/Aw/ Green Stripe
1982MercuryCapri3.3LL6N/Aw/ Green Stripe
1982MercuryCapri4.2LV8N/Aw/ Green Stripe
1982MercuryCougar2.3LL4N/Aw/o High Altitude Emissions; w/ Single Diaphragm; w/ Green Stripe
1982MercuryCougar3.8LV6N/A
1982MercuryCougar3.3LL6N/A
1982MercuryGrand MarquisN/Aw/o High Altitude Emissions
1982MercuryLN7N/Aw/o High Altitude Emissions; w/ Green Stripe
1982MercuryLynxN/Aw/o High Altitude Emissions; w/ Green Stripe
1982MercuryZephyr3.3LL6N/A
1982MercuryZephyr4.2LV8N/A
1981FordF-1005.0LV8N/AAutomatic Transmission Vacuum Modulator for Model XP Trans
1981FordF-1004.9LL6N/AAutomatic Transmission Vacuum Modulator for Model XP Trans
1981FordFairmontAutomatic4.2LV8N/A
1981FordMustangN/AAutomatic Transmission Vacuum Modulator for Model XP Trans
1981FordThunderbird5.0LV8N/AAutomatic Transmission Vacuum Modulator w/ Single Diaphragm and Green Stripe
1981FordThunderbird3.3LL6N/Aw/ Green Stripe
1981FordThunderbird4.2LV8N/Aw/ Green Stripe
1981MercuryCapriN/AAutomatic Transmission Vacuum Modulator for Model XP Trans
1981MercuryCougarN/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1981MercuryZephyrN/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1980FordF-1004.9LL6N/A
1980FordFairmontN/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1980FordLTD5.0LV8N/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1980FordLTD5.8LV8N/AAutomatic Transmission Vacuum Modulator w/ Single Diaphragm and Green Stripe
1980FordMustangN/AAutomatic Transmission Vacuum Modulator for Model XP Trans
1980FordThunderbirdN/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1980FordThunderbirdN/Aw/ Green Stripe
1980LincolnVersaillesN/A
1980MercuryBobcat2.3LL4N/A
1980MercuryCapriN/AAutomatic Transmission Vacuum Modulator for Model XP Trans
1980MercuryCougarN/AAutomatic Transmission Vacuum Modulator for Model XP Trans
1980MercuryGrand Marquis5.0LV8N/Aw/ Green Stripe
1980MercuryMarquis5.0LV8N/Aw/ Green Stripe
1980MercuryMonarch5.0LV8N/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1980MercuryMonarch4.1LL6N/AAutomatic Transmission Vacuum Modulator w/ Single Diaphragm and Green Stripe
1980MercuryMonarch4.2LV8N/AAutomatic Transmission Vacuum Modulator w/ Single Diaphragm and Green Stripe
1980MercuryZephyrN/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1979FordF-1005.0LV8N/Aw/ Green Stripe
1979FordFairmont3.3LL6N/AAutomatic Transmission Vacuum Modulator for Model XP Trans
1979FordFairmont5.0LV8N/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1979FordMustangN/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1979FordThunderbirdN/Aw/ Green Stripe
1979FordThunderbirdN/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1979LincolnVersaillesN/A
1979MercuryBobcatN/AAutomatic Transmission Vacuum Modulator for Model XP Trans
1979MercuryCapri3.3LL6N/AAutomatic Transmission Vacuum Modulator for Model XP Trans
1979MercuryCougar5.0LV8N/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1979MercuryCougar5.8LV8N/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1979MercuryMonarch5.0LV8N/AAutomatic Transmission Vacuum Modulator for Model XP Trans
1979MercuryMonarch4.1LL6N/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1979MercuryZephyr3.3LL6N/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1979MercuryZephyr5.0LV8N/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1978FordF-150N/AAutomatic Transmission Vacuum Modulator for Model XP Trans
1978FordFairmont3.3LL6N/AAutomatic Transmission Vacuum Modulator for Model XP Trans
1978FordThunderbirdN/Aw/ Green Stripe
1978LincolnVersaillesN/A
1978MercuryBobcatN/AAutomatic Transmission Vacuum Modulator for Model XP Trans
1978MercuryCougarN/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1978MercuryMonarch4.1LL6N/A
1978MercuryMonarch5.0LV8N/A
1978MercuryZephyr3.3LL6N/A
1977FordE-100 EconolineN/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1977FordE-100 Econoline Club Wagon4.9LL6N/Aw/ Green Stripe; w/ 1 Vacuum Port; Model XP Trans.
1977FordE-150 EconolineN/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1977FordE-150 Econoline Club Wagon4.9LL6N/Aw/ Green Stripe; w/ 1 Vacuum Port; Model XP Trans.
1977FordF-100AutomaticN/Aw/ Green Stripe
1977FordF-150N/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1977FordLTD5.0LV8N/AAutomatic Transmission Vacuum Modulator for Model XP Trans
1977FordThunderbirdN/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1977FordThunderbirdN/Aw/ Green Stripe
1977LincolnVersaillesN/A
1977MercuryBobcatN/AAutomatic Transmission Vacuum Modulator for Model XP Trans
1977MercuryCougarN/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1977MercuryMonarch3.3LL6N/AAutomatic Transmission Vacuum Modulator w/ Single Diaphragm and Green Stripe
1977MercuryMonarch5.8LV8N/AAutomatic Transmission Vacuum Modulator w/ Single Diaphragm and Green Stripe
1977MercuryMonarch4.1LL6N/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1977MercuryMonarch5.0LV8N/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1976FordE-100 Econoline Club Wagon4.9LL6N/Aw/ Green Stripe; w/ 1 Vacuum Port; Model XP Trans.
1976FordE-150 Econoline4.9LL6N/Aw/ Green Stripe; Model XP Trans.; w/ Sliding Door
1976FordE-150 Econoline Club Wagon4.9LL6N/Aw/ Green Stripe; w/ 1 Vacuum Port; Model XP Trans.
1976MercuryBobcat2.8LV6N/AAutomatic Transmission Vacuum Modulator for model XP Trans with Green Stripe.
1976MercuryMonarch4.1LL6N/AAutomatic Transmission Vacuum Modulator for Model XP Trans
1976MercuryMonarch3.3LL6N/AAutomatic Transmission Vacuum Modulator w/ Single Diaphragm and Green Stripe
1976MercuryMonarch5.8LV8N/AAutomatic Transmission Vacuum Modulator w/ Single Diaphragm and Green Stripe

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1910695757-70167R102588403D5AZ7A377BFM2328TM34TM48TM731BVM131VM641

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.