Brands Vehicles
Lowest Prices
Free Returns
Online Since 2009

Airtex 40503 Mechanical Fuel Pump

Airtex 40503 Mechanical Fuel Pump

Airtex
Brand:Airtex
Part Number: 40503
UPC: 080044093244
Weight: 1.4 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

Get the Airtex 40503 Mechanical Fuel Pump for your vehicle. Buy now and secure your purchase online!

Airtex mechanical fuel pumps are designed to meet or exceed OEM specifications for fit and performance. Precision castings and hardened rockers help ensure a long life. Advanced polymer pump diaphragms help ensure consistent performance in multiple fuel blends. A new fuel filter is recommended when replacing. Product Features: Coverage for classic, performance and non-fuel-injected vehicles, 100% factory tested. Every single pump is 100% tested throughout the entire manufacturing process for worry free, out of the box performance.

Features and Benefits:

  • Airtex Mechanical Fuel Pumps and Fuel Systems Accessories are covered by a 12 month or 12000 mile Limited Warranty. Refer to Airtex website www.Airtexfuelsystems.com for the terms of Airtex's Limited Warranty.

Specifications:

Filter Included:
No
Flow Rate:
30 gph
Gasket Included:
Y
Gasket Or Seal Included:
Yes
In Tank or External:
External
Inlet Fitting Thread Size:
5/16 inch
Inlet Outside Diameter:
3/8 in.
Inlet Quantity:
1
Inlet Type:
Hose Connection
Internal Or External:
External
Minimum Pressure:
2.0 PSI
Mounting Hardware Included:
No
Mounting Hole Quantity:
2
Outlet Fitting Thread Size:
1/2-20 UNF
Outlet Quantity:
1
Outlet Type:
Threaded
Pump Type:
Mechanical
Universal Or Specific Fit:
Specific
Wiring Harness Included:
No
ACDelco #:
40503
BWD #:
40503
Bosch #:
68558
CARQUEST or Airtex Fuel Pumps #:
40503
Carter #:
M4513
Delphi Fuel Pumps #:
MF0020
GMB #:
520-8090
General Motors #:
6440428
Kem #:
40503
Pierce #:
40503
Spectra Premium #:
SP1029MP
Spectra Premium #:
SP1184MP
No Proposition 65 warning is required with this product.
Country of Origin:
MX

Select a vehicle to narrow Airtex 40503 Mechanical Fuel Pump fitment info!

Last Updated: 04/10/2021

Years Vehicle Per Vehicle Fit NotesFitment Notes
Chevrolet Bel Air

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet Bel Air



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet Bel Air

4.6L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet Bel Air



4.6L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet Bel Air

5.3L V8 Gas OHV
1
 
Early Production
with 2 Line Pump
 

Chevrolet Bel Air



5.3L V8 Gas OHV Early Production
with 2 Line Pump

1 Per Vehicle
Chevrolet Biscayne

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet Biscayne



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet Biscayne

4.6L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet Biscayne



4.6L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet Biscayne

5.3L V8 Gas OHV
1
 
Early Production
with 2 Line Pump
 

Chevrolet Biscayne



5.3L V8 Gas OHV Early Production
with 2 Line Pump

1 Per Vehicle
Chevrolet Blazer

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet Blazer



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet C10 Pickup

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet C10 Pickup



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet C10 Pickup

4.6L V8 Gas OHV,
5.3L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet C10 Pickup



4.6L V8 Gas OHV,
5.3L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet C10 Suburban

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet C10 Suburban



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet C10 Suburban

4.6L V8 Gas OHV,
5.3L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet C10 Suburban



4.6L V8 Gas OHV,
5.3L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet C20 Pickup

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet C20 Pickup



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet C20 Pickup

4.6L V8 Gas OHV,
5.3L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet C20 Pickup



4.6L V8 Gas OHV,
5.3L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet C20 Suburban

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet C20 Suburban



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet C20 Suburban

4.6L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet C20 Suburban



4.6L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet C30 Pickup

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet C30 Pickup



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet C30 Pickup

4.6L V8 Gas OHV,
5.3L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet C30 Pickup



4.6L V8 Gas OHV,
5.3L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet C50

5.4L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet C50



5.4L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet C60

5.4L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet C60



5.4L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet Camaro

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet Camaro



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet Camaro

5.3L V8 Gas OHV,
5.7L V8 Gas OHV
1
 
Early Production
with 2 Line Pump
 

Chevrolet Camaro



5.3L V8 Gas OHV,
5.7L V8 Gas OHV Early Production
with 2 Line Pump

1 Per Vehicle
Chevrolet Caprice

4.6L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet Caprice



4.6L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet Chevelle

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet Chevelle



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet Chevelle

5.0L V8 Gas
1
 
with 2 Line Pump
 

Chevrolet Chevelle



5.0L V8 Gas with 2 Line Pump

1 Per Vehicle
Chevrolet Chevelle

4.6L V8 Gas,
4.6L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet Chevelle



4.6L V8 Gas,
4.6L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet Chevelle

5.3L V8 Gas OHV
1
 
Late Production
with 2 Line Pump
 

Chevrolet Chevelle



5.3L V8 Gas OHV Late Production
with 2 Line Pump

1 Per Vehicle
Chevrolet Chevy II

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet Chevy II



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet Chevy II

4.6L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet Chevy II



4.6L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet Chevy II

5.3L V8 Gas OHV
1
 
Early Production
with 2 Line Pump
 

Chevrolet Chevy II



5.3L V8 Gas OHV Early Production
with 2 Line Pump

1 Per Vehicle
Chevrolet Corvette

5.3L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet Corvette



5.3L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet El Camino

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet El Camino



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet El Camino

4.6L V8 Gas OHV,
5.3L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet El Camino



4.6L V8 Gas OHV,
5.3L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet Estate

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet Estate



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet G10 Van

5.0L V8 Gas
1
 
with 2 Line Pump
 

Chevrolet G10 Van



5.0L V8 Gas with 2 Line Pump

1 Per Vehicle
Chevrolet G20 Van

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet G20 Van



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet Impala

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet Impala



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet Impala

4.6L V8 Gas,
4.6L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet Impala



4.6L V8 Gas,
4.6L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet Impala

5.3L V8 Gas OHV
1
 
Early Production
with 2 Line Pump
 

Chevrolet Impala



5.3L V8 Gas OHV Early Production
with 2 Line Pump

1 Per Vehicle
Chevrolet K10 Pickup

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet K10 Pickup



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet K10 Pickup

4.6L V8 Gas OHV,
5.3L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet K10 Pickup



4.6L V8 Gas OHV,
5.3L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet K10 Suburban

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet K10 Suburban



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet K10 Suburban

4.6L V8 Gas OHV,
5.3L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet K10 Suburban



4.6L V8 Gas OHV,
5.3L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet K20 Pickup

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet K20 Pickup



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet K20 Pickup

5.3L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet K20 Pickup



5.3L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet K20 Pickup

4.6L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet K20 Pickup



4.6L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet K20 Pickup

3.8L L6 Gas OHV,
4.8L L6 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet K20 Pickup



3.8L L6 Gas OHV,
4.8L L6 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet K20 Suburban

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet K20 Suburban



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet K20 Suburban

4.6L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet K20 Suburban



4.6L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet Malibu

4.6L V8 Gas OHV
1
 
 

Chevrolet Malibu



4.6L V8 Gas OHV
1 Per Vehicle
Chevrolet Nova

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Chevrolet Nova



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Chevrolet P20 Van

5.0L V8 Gas
1
 
with 2 Line Pump
 

Chevrolet P20 Van



5.0L V8 Gas with 2 Line Pump

1 Per Vehicle
Chevrolet P30 Van

5.0L V8 Gas
1
 
with 2 Line Pump
 

Chevrolet P30 Van



5.0L V8 Gas with 2 Line Pump

1 Per Vehicle
GMC C15/C1500 Pickup

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

GMC C15/C1500 Pickup



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC C15/C1500 Pickup

5.0L V6 Gas OHV
1
 
with 2 Line Pump
 

GMC C15/C1500 Pickup



5.0L V6 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC C15/C1500 Pickup

4.6L V8 Gas OHV,
5.3L V8 Gas OHV
1
 
with 2 Line Pump
 

GMC C15/C1500 Pickup



4.6L V8 Gas OHV,
5.3L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC C15/C1500 Suburban

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

GMC C15/C1500 Suburban



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC C15/C1500 Suburban

5.0L V6 Gas OHV
1
 
with 2 Line Pump
 

GMC C15/C1500 Suburban



5.0L V6 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC C15/C1500 Suburban

4.6L V8 Gas OHV,
5.3L V8 Gas OHV
1
 
with 2 Line Pump
 

GMC C15/C1500 Suburban



4.6L V8 Gas OHV,
5.3L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC C25/C2500 Pickup

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

GMC C25/C2500 Pickup



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC C25/C2500 Pickup

5.0L V6 Gas OHV
1
 
with 2 Line Pump
 

GMC C25/C2500 Pickup



5.0L V6 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC C25/C2500 Pickup

4.6L V8 Gas OHV,
5.3L V8 Gas OHV
1
 
with 2 Line Pump
 

GMC C25/C2500 Pickup



4.6L V8 Gas OHV,
5.3L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC C25/C2500 Suburban

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

GMC C25/C2500 Suburban



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC C25/C2500 Suburban

5.0L V6 Gas OHV
1
 
with 2 Line Pump
 

GMC C25/C2500 Suburban



5.0L V6 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC C25/C2500 Suburban

4.6L V8 Gas OHV
1
 
with 2 Line Pump
 

GMC C25/C2500 Suburban



4.6L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC C35/C3500 Pickup

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

GMC C35/C3500 Pickup



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC C35/C3500 Pickup

5.0L V6 Gas OHV
1
 
with 2 Line Pump
 

GMC C35/C3500 Pickup



5.0L V6 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC C35/C3500 Pickup

4.6L V8 Gas OHV,
5.3L V8 Gas OHV
1
 
with 2 Line Pump
 

GMC C35/C3500 Pickup



4.6L V8 Gas OHV,
5.3L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC G15/G1500 Van

5.0L V8 Gas
1
 
with 2 Line Pump
 

GMC G15/G1500 Van



5.0L V8 Gas with 2 Line Pump

1 Per Vehicle
GMC G15/G1500 Van

4.6L V8 Gas
1
 
with 2 Line Pump
 

GMC G15/G1500 Van



4.6L V8 Gas with 2 Line Pump

1 Per Vehicle
GMC G25/G2500 Van

5.0L V8 Gas
1
 
with 2 Line Pump
 

GMC G25/G2500 Van



5.0L V8 Gas with 2 Line Pump

1 Per Vehicle
GMC Jimmy

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

GMC Jimmy



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC K15/K1500 Pickup

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

GMC K15/K1500 Pickup



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC K15/K1500 Pickup

5.0L V6 Gas OHV
1
 
with 2 Line Pump
 

GMC K15/K1500 Pickup



5.0L V6 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC K15/K1500 Suburban

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

GMC K15/K1500 Suburban



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC K25/K2500 Pickup

5.0L V6 Gas OHV,
5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

GMC K25/K2500 Pickup



5.0L V6 Gas OHV,
5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC K25/K2500 Suburban

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

GMC K25/K2500 Suburban



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC K25/K2500 Suburban

5.0L V6 Gas OHV
1
 
with 2 Line Pump
 

GMC K25/K2500 Suburban



5.0L V6 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC K35/K3500 Pickup

5.0L V6 Gas OHV,
5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

GMC K35/K3500 Pickup



5.0L V6 Gas OHV,
5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
GMC P25/P2500 Van

5.0L V8 Gas
1
 
with 2 Line Pump
 

GMC P25/P2500 Van



5.0L V8 Gas with 2 Line Pump

1 Per Vehicle
GMC P25/P2500 Van

4.6L V8 Gas
1
 
with 2 Line Pump
 

GMC P25/P2500 Van



4.6L V8 Gas with 2 Line Pump

1 Per Vehicle
GMC P35/P3500 Van

5.0L V8 Gas
1
 
with 2 Line Pump
 

GMC P35/P3500 Van



5.0L V8 Gas with 2 Line Pump

1 Per Vehicle
GMC P35/P3500 Van

4.6L V8 Gas
1
 
with 2 Line Pump
 

GMC P35/P3500 Van



4.6L V8 Gas with 2 Line Pump

1 Per Vehicle
GMC Sprint

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

GMC Sprint



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle
Pontiac Ventura

5.0L V8 Gas OHV
1
 
with 2 Line Pump
 

Pontiac Ventura



5.0L V8 Gas OHV with 2 Line Pump

1 Per Vehicle