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1991 Ford Mustang

1991 Ford Mustang Mass Air Flow Sensors

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Mass Air Flow Sensor, 8 Cyl., 5.0L Engine, I.D. #(s) E9ZF 12B579-AA
Part Number: RF31670002
Guaranteed to Fit
$61.99
Vehicle Fitment
  • 1991 Ford Mustang GT 8 Cyl 5.0L I.D. #(s) E9ZF 12B579-AA, F1ZF 12B579-AA
  • 1991 Ford Mustang LX 8 Cyl 5.0L I.D. #(s) E9ZF 12B579-AA, F1ZF 12B579-AA
Product Details
Notes : With housingReplaces OE Number : F1ZZ12B579AARM, F1ZF12B579AA, E9ZF12B579AA, E9ZZ12B579A, F1ZZ12B579A, F1ZF12B579AA, AFH5503BQuantity Sold : Sold individuallyWarranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Condition : NewInterchange Part Number : 869502, F1ZZ12B579AARM, F1ZF12B579AA, E9ZF12B579AA, E9ZZ12B579A, F1ZZ12B579A, F1ZF12B579AA, AFH5503BRecommended Use : OE ReplacementReturns Policy : 30-Day Return Policy
Mass Air Flow Sensor, 8 Cyl., 5.0L Engine, with OE # E9ZF-12B579-AA, F1ZZ-12B579-A -
Part Number: WKP2451013
Guaranteed to Fit
$94.49
Vehicle Fitment
  • 1991 Ford Mustang GT 8 Cyl 5.0L With OE # E9ZF-12B579-AA, F1ZZ-12B579-A
  • 1991 Ford Mustang LX 8 Cyl 5.0L With OE # E9ZF-12B579-AA, F1ZZ-12B579-A
Product Details
Notes : Full assembly with housingReplaces OE Number : F1ZF12B579AA, F1ZZ12B579AARMQuantity Sold : Sold individuallyWarranty : 90-day Walker Products limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Condition : NewRecommended Use : OE Replacement
Mass Air Flow Sensor, 8 Cyl., 5.0L Engine, Exc Cobra 76mm Mass Air Meter 24Lb CAC -
Part Number: B458004
Guaranteed to Fit
$269.99
Vehicle Fitment
  • 1991 Ford Mustang LX 8 Cyl 5.0L Exc Cobra 76mm Mass Air Meter 24Lb CAC
  • 1991 Ford Mustang GT 8 Cyl 5.0L Exc Cobra 76mm Mass Air Meter 24Lb CAC
Product Details
Quantity Sold : Sold individuallyWarranty : 1-year BBK limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Condition : NewSeries : BBK Mass Air MeterRecommended Use : Performance Replacement
Mass Air Flow Sensor, 8 Cyl., 5.0L Engine, ID #(s) E9ZF 12B579-AA -
Part Number: A1749502
Guaranteed to Fit
$65.99
Vehicle Fitment
  • 1991 Ford Mustang GT 8 Cyl 5.0L ID #(s) E9ZF 12B579-AA, F1ZF 12B579-AA
  • 1991 Ford Mustang LX 8 Cyl 5.0L ID #(s) E9ZF 12B579-AA, F1ZF 12B579-AA
Product Details
Quantity Sold : Sold individuallyWarranty : 1-year or 18,000-mile A1 Cardone limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Condition : RemanufacturedSeries : Reman SeriesRecommended Use : OE Replacement
Mass Air Flow Sensor, 4 Cyl., 2.3L Engine -
Part Number: A1749505
Guaranteed to Fit
$50.99
Vehicle Fitment
  • 1991 Ford Mustang LX 4 Cyl 2.3L
Product Details
Replaces OE Number : F0VY12B579AQuantity Sold : Sold individuallyWarranty : 1-year or 18,000-mile A1 Cardone limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Condition : RemanufacturedSeries : Reman SeriesInterchange Part Number : F0VY12B579ARecommended Use : OE Replacement
Mass Air Flow Sensor, 8/4 Cyl., 5.0/2.3L Engine -
Part Number: GPD1813161
Guaranteed to Fit
$40.99
Vehicle Fitment
  • 1991 Ford Mustang LX 4 Cyl 2.3L
  • 1991 Ford Mustang GT 8 Cyl 5.0L
  • 1991 Ford Mustang LX 8 Cyl 5.0L
Product Details
Quantity Sold : Sold individuallyWarranty : 1 year GPD limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Condition : NewRecommended Use : OE Replacement
Mass Air Flow Sensor, 8/4 Cyl., 5.0/2.3L Engine -
Part Number: WAIMAF10111
Guaranteed to Fit
$49.99
Vehicle Fitment
  • 1991 Ford Mustang GT 8 Cyl 5.0L
  • 1991 Ford Mustang LX 4 Cyl 2.3L
  • 1991 Ford Mustang LX 8 Cyl 5.0L
Product Details
Replaces OE Number : MAS0110, MA122, 28322361Quantity Sold : Sold individuallyWarranty : WAI limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Condition : NewSeries : OE Replacement SeriesInterchange Part Number : MAS0110, MA122, 28322361Recommended Use : OE Replacement
Mass Air Flow Sensor, 4 Cyl., 2.3L Engine, VIN M, Naturally Aspirated -
Part Number: WKP2452016
Guaranteed to Fit
$64.99
Vehicle Fitment
  • 1991 Ford Mustang LX 4 Cyl 2.3L VIN M, Naturally Aspirated
Product Details
Notes : Sensor onlyQuantity Sold : Sold individuallyWarranty : 90-day Walker Products limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Condition : NewRecommended Use : OE Replacement
Mass Air Flow Sensor, 4 Cyl., 2.3L Engine -
Part Number: A1869505
Guaranteed to Fit
$60.99
Vehicle Fitment
  • 1991 Ford Mustang LX 4 Cyl 2.3L
Product Details
Replaces OE Number : F0VY12B579AQuantity Sold : Sold individuallyWarranty : Lifetime A1 Cardone limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Condition : NewSeries : New SeriesInterchange Part Number : F0VY12B579ARecommended Use : OE Replacement
Mass Air Flow Sensor, 8 Cyl., 5.0L Engine, with OE # E9ZF-12B579-AA, F1ZZ-12B579-A -
Part Number: WKP2452013
Guaranteed to Fit
$69.49
Vehicle Fitment
  • 1991 Ford Mustang GT 8 Cyl 5.0L With OE # E9ZF-12B579-AA, F1ZZ-12B579-A
  • 1991 Ford Mustang LX 8 Cyl 5.0L With OE # E9ZF-12B579-AA, F1ZZ-12B579-A
Product Details
Notes : Sensor onlyQuantity Sold : Sold individuallyWarranty : 90-day Walker Products limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Condition : NewRecommended Use : OE Replacement
Mass Air Flow Sensor, 8 Cyl., 5.0L Engine -
Part Number: SIMAS0123
Guaranteed to Fit
$118.49
Vehicle Fitment
  • 1991 Ford Mustang GT 8 Cyl 5.0L
  • 1991 Ford Mustang LX 8 Cyl 5.0L
Product Details
Quantity Sold : Sold individuallyWarranty : 3-year or 36,000-mile Standard limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Condition : NewSeries : Standard OE ReplacementRecommended Use : OE Replacement
Mass Air Flow Sensor, 8 Cyl., 5.0L Engine, ID #(s) F1SF 12B529-A, AA, Part Available Through Rebuild & Return Only
Part Number: A1749509
Guaranteed to Fit
$80.49

+ $46.12 Refundable Core Charge

Vehicle Fitment
  • 1991 Ford Mustang LX 8 Cyl 5.0L ID #(s) F1SF 12B529-A, AA, Part Available Through Rebuild & Return Only.
  • 1991 Ford Mustang GT 8 Cyl 5.0L ID #(s) F1SF 12B529-A, AA, Part Available Through Rebuild & Return Only.
Product Details
Notes : Bolt-on mounting typeQuantity Sold : Sold individuallyWarranty : 1-year or 18,000-mile A1 Cardone limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Condition : RemanufacturedSeries : Reman SeriesRecommended Use : OE Replacement
Mass Air Flow Sensor, 4 Cyl., 2.3L Engine, Eng. VIN: M, Naturally Aspirated -
Part Number: WKP2451016
Guaranteed to Fit
$98.99
Vehicle Fitment
  • 1991 Ford Mustang LX 4 Cyl 2.3L Eng. VIN: M, Naturally Aspirated
Product Details
Notes : Full assembly without housingQuantity Sold : Sold individuallyWarranty : 90-day Walker Products limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Condition : NewRecommended Use : OE Replacement
Mass Air Flow Sensor, 8 Cyl., 5.0L Engine, ID #(S) F1Sf 12B529-A, Aa
Part Number: A1869509
Guaranteed to Fit
$100.49
Vehicle Fitment
  • 1991 Ford Mustang LX 8 Cyl 5.0L ID #(S) F1Sf 12B529-A, Aa
  • 1991 Ford Mustang GT 8 Cyl 5.0L ID #(S) F1Sf 12B529-A, Aa
Product Details
Quantity Sold : Sold individuallyWarranty : Lifetime A1 Cardone limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Condition : NewSeries : New SeriesRecommended Use : OE Replacement
Mass Air Flow Sensor, 8 Cyl., 5.0L Engine, Exc Cobra 76mm Mass Air Meter 19Lb CAC -
Part Number: B458002
Guaranteed to Fit
$269.99
Vehicle Fitment
  • 1991 Ford Mustang LX 8 Cyl 5.0L Exc Cobra 76mm Mass Air Meter 19Lb CAC
  • 1991 Ford Mustang GT 8 Cyl 5.0L Exc Cobra 76mm Mass Air Meter 19Lb CAC
Product Details
Quantity Sold : Sold individuallyWarranty : 1 Year BBK Limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use : Performance Replacement
Page 1 of 2 | Showing 1 - 15 of 19 results

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Car runs much better. Arrived very fast.
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Product Questions & Answers

Q:Is it calibrated for 24 lb injectors ?
Everardo G.
A:BEST ANSWERHello! Any injector calibration would be done in the vehicle's PCM, not the Mass Air Flow sensor. Show less
Mitchell D.
 
2 Questions, 1 AnswerView all Q&As >