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1968 - 1974 Mercury Montego Squire Automatic Transmission Ring Gear (ATP) NEW

$ 52 .22
120-DayReturns
LifetimeWarranty
100%Money-Back

Product Notes Read before buying

Width: 0.365" Teeth: 157 Outer Diameter: 13.294" Inner Diameter: 12.025"

The ring gear has teeth which engage with the starter motor allowing the engine to crank over and start. Repeated engagement with the starter results in worn or broken ring gear teeth. Once this is diagnosed, the ring gear must be replaced. ATP ring gears are designed to fit and function just like the original part to ensure durability and long life.
Brand: ATP
Condition: New
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Specifications & Info


Attribute Value
Inside Diameter 12.025
LineCode Atp, Atp4
Pitch Flywheels 12/14
Ring Gear Chamfer None
Tooth Quantity 157

Vehicle Fitment Guide

This part fits the following vehicles:

Mercury 1 model (tapclick to expand)(tapclick to hide)
Montego 1968-1974 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Base Hardtop 1973 - 1974 V8 7.5L RWD Automatic & Manual & U/K
Base Hardtop 1973 - 1974 V8 7.5L RWD Automatic & Manual & U/K
Base Hardtop 1972 - 1974 V8 6.6L RWD Automatic & Manual & U/K
Base Hardtop 1972 - 1974 V8 6.6L RWD Automatic & Manual & U/K
Base Hardtop 1969 - 1974 L6 4.1L RWD Automatic & Manual & U/K
Base Hardtop 1969 - 1974 L6 4.1L RWD Automatic & Manual & U/K
Base Hardtop 1969 - 1974 V8 5.8L RWD Automatic & Manual & U/K
Base Hardtop 1969 - 1974 V8 5.8L RWD Automatic & Manual & U/K
Base Hardtop 1968 L6 3.3L RWD Automatic & Manual & U/K
Base Hardtop 1968 L6 3.3L RWD Automatic & Manual & U/K
Base Hardtop 1968 V8 4.7L RWD Automatic & Manual & U/K
Base Hardtop 1968 V8 4.7L RWD Automatic & Manual & U/K
Base Hardtop 1968 - 1974 V8 5.0L RWD Automatic & Manual & U/K
Base Hardtop 1968 - 1974 V8 5.0L RWD Automatic & Manual & U/K
Base Hardtop 1968 - 1969 V8 6.4L RWD Automatic & Manual & U/K
Base Hardtop 1968 - 1969 V8 6.4L RWD Automatic & Manual & U/K
Base Hardtop 1968 - 1973 V8 7.0L RWD Automatic & Manual & U/K
Base Hardtop 1968 - 1973 V8 7.0L RWD Automatic & Manual & U/K
GT Fastback 1973 V8 7.5L RWD U/K
GT Fastback 1972 - 1973 V8 5.0L RWD U/K
GT Fastback 1972 - 1973 V8 5.8L RWD U/K
GT Fastback 1972 - 1973 V8 6.6L RWD U/K
GT Fastback 1972 - 1973 V8 7.0L RWD U/K
MX Convertible 1969 L6 4.1L RWD U/K
MX Convertible 1969 V8 5.8L RWD U/K
MX Convertible 1968 L6 3.3L RWD U/K
MX Convertible 1968 V8 4.7L RWD U/K
MX Convertible 1968 - 1969 V8 5.0L RWD U/K
MX Convertible 1968 - 1969 V8 6.4L RWD U/K
MX Convertible 1968 - 1969 V8 7.0L RWD U/K
MX Hardtop 1974 L6 4.1L RWD U/K
MX Hardtop 1974 V8 5.0L RWD U/K
MX Hardtop 1974 V8 5.8L RWD U/K
MX Hardtop 1974 V8 6.6L RWD U/K
MX Hardtop 1974 V8 7.5L RWD U/K
MX Hardtop 1973 - 1974 V8 7.5L RWD U/K
MX Hardtop 1972 - 1974 V8 6.6L RWD U/K
MX Hardtop 1969 - 1974 L6 4.1L RWD U/K
MX Hardtop 1969 - 1974 V8 5.8L RWD U/K
MX Hardtop 1968 L6 3.3L RWD U/K
MX Hardtop 1968 V8 4.7L RWD U/K
MX Hardtop 1968 - 1974 V8 5.0L RWD U/K
MX Hardtop 1968 - 1969 V8 6.4L RWD U/K
MX Hardtop 1968 - 1973 V8 7.0L RWD U/K
MX Sedan 1973 V8 7.5L RWD U/K
MX Sedan 1972 - 1973 V8 6.6L RWD U/K
MX Sedan 1969 - 1973 L6 4.1L RWD U/K
MX Sedan 1969 - 1973 V8 5.8L RWD U/K
MX Sedan 1968 L6 3.3L RWD U/K
MX Sedan 1968 V8 4.7L RWD U/K
MX Sedan 1968 - 1973 V8 5.0L RWD U/K
MX Sedan 1968 - 1969 V8 6.4L RWD U/K
MX Sedan 1968 - 1973 V8 7.0L RWD U/K
MX Wagon 1973 - 1974 V8 7.5L RWD U/K
MX Wagon 1972 - 1974 V8 6.6L RWD U/K
MX Wagon 1969 - 1974 L6 4.1L RWD U/K
MX Wagon 1969 - 1974 V8 5.8L RWD U/K
MX Wagon 1968 L6 3.3L RWD U/K
MX Wagon 1968 V8 4.7L RWD U/K
MX Wagon 1968 - 1974 V8 5.0L RWD U/K
MX Wagon 1968 - 1969 V8 6.4L RWD U/K
MX Wagon 1968 - 1973 V8 7.0L RWD U/K
MX Brougham Hardtop 1974 V8 6.6L RWD U/K
MX Brougham Hardtop 1974 V8 7.5L RWD U/K
MX Brougham Hardtop 1973 - 1974 V8 7.5L RWD U/K
MX Brougham Hardtop 1972 - 1974 V8 6.6L RWD U/K
MX Brougham Hardtop 1970 - 1974 L6 4.1L RWD U/K
MX Brougham Hardtop 1970 - 1971, 1974 L6 4.1L RWD U/K
MX Brougham Hardtop 1970 - 1974 V8 5.0L RWD U/K
MX Brougham Hardtop 1970 - 1971, 1974 V8 5.0L RWD U/K
MX Brougham Hardtop 1970 - 1974 V8 5.8L RWD U/K
MX Brougham Hardtop 1970 - 1971, 1974 V8 5.8L RWD U/K
MX Brougham Hardtop 1970 - 1973 V8 7.0L RWD U/K
MX Brougham Hardtop 1970 - 1971 V8 7.0L RWD U/K
MX Brougham Sedan 1973 V8 7.5L RWD U/K
MX Brougham Sedan 1972 - 1973 V8 6.6L RWD U/K
MX Brougham Sedan 1970 - 1973 L6 4.1L RWD U/K
MX Brougham Sedan 1970 - 1973 V8 5.0L RWD U/K
MX Brougham Sedan 1970 - 1973 V8 5.8L RWD U/K
MX Brougham Sedan 1970 - 1973 V8 7.0L RWD U/K
Villager Wagon 1973 - 1974 V8 7.5L RWD U/K
Villager Wagon 1972 - 1974 V8 6.6L RWD U/K
Villager Wagon 1970 - 1974 L6 4.1L RWD U/K
Villager Wagon 1970 - 1974 V8 5.0L RWD U/K
Villager Wagon 1970 - 1974 V8 5.8L RWD U/K
Villager Wagon 1970 - 1973 V8 7.0L RWD U/K
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

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Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Lifetime Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.

Returns (120 Days)

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.
The ring gear has teeth which engage with the starter motor allowing the engine to crank over and start. Repeated engagement with the starter results in worn or broken ring gear teeth. Once this is diagnosed, the ring gear must be replaced. ATP ring gears are designed to fit and function just like the original part to ensure durability and long life.

Interchange Parts

Brand Part Number
Anchor 157N
ATP ZA-503
Autocraft RG157N
Big A XG14
Chromite FM157N
Dorman - OE Solutions 4410
Pioneer FRG-157N
Pioneer FRG157N
PTC RG14
Sealed Power 416121

Fits Years: 1968 1969 1970 1971 1972 1973 1974

Fits Models: Montego

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