1991 BMW 525i Fuel and Emissions Systems

Essential 1991 BMW 525i Fuel and Emissions Systems

Original Equipment – Air Temp. Sensor (Part No.C60003256823OEA)

Air Temp. Sensor

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$30.49
Air Temp. Sensor

Bosch – Wideband Oxygen Sensor: 5 Wire, 38.58" Long, Heated, Exact Fit (Part No.17215)

Wideband Oxygen Sensor: 5 Wire, 38.58" Long, Heated, Exact Fit

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$121.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation advancements. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.  Bosch oxygen sensors deliver exceptional OE level reliability, performance and durability, further improving service life of the product. 

Product Features:
  • Advanced Wideband sensing element for exact air/fuel measurement
  • Robust sensor design increases sensor longevity
  • Seared protection tube due to 100% functional quality test
  • ‘True Direct-fit’ OE connectors and harness
  • Pre-coated threads with anti-seize compound right out of the box
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Carquest Premium – Ambient Air Temperature Sensor (Part No.WTA1395)

Ambient Air Temperature Sensor

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$41.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Delphi – Fuel Injection Pressure Regulator (Part No.FP10317)

Fuel Injection Pressure Regulator

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$83.99
100 years of OE experience, supplier to the world’s top automakers, OE Heritage and knowledge built into every aftermarket part.

Product Features:
  • Precisely manufactured internal valves, diaphragms and springs means excellent performance under all engine operating conditions
  • Quiet operation, no audible regulator noise
  • Robust diaphragm materials means longer life, improved durability and compatibility with a wide range of fuels
  • Consistent and predictable fuel pressure throughout system range of control provides great drivability
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ACDelco – Multi-Purpose Wire Connector with Leads (Part No.PT2164)

Multi-Purpose Wire Connector with Leads

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$16.79
ACDelco Professional Air Charge Temperature Sensor Connector is a high quality aftermarket replacement component for one or more of the following vehicle systems: ignition, starting and charging, body-electrical and lighting, and/or engine fuel management. This premium aftermarket connector is manufactured to meet or exceed your expectations for fit, form, and function.

Product Features:
  • Professional, premium aftermarket replacement
  • Provides the performance and dependability you expect from ACDelco
  • Manufactured to meet expectations for fit, form, and function
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Elring – Fuel Injector Seal (Part No.C1010681908ELR)

Fuel Injector Seal

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$2.43
Fuel Injector Seal

Rein – Breather Hose (Part No.ABV0125)

Breather Hose

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$24.99
Rein Automotive OE quality breather hoses fit European vehicles the way the original manufacturer intended. Designed to be direct replacements for OE hoses, Rein hoses are identical to the OEM.

Product Features:
  • Matches original equipment design specifications.
  • Manufactured with high quality materials.
  • Direct fit for easy installation.
  • Resistant to heat, salt, road debris, oil and other contaminants.
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Rein – Automotive Engine Oil Separator Hose (Part No.B2019269831RIN)

Automotive Engine Oil Separator Hose

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$36.00
This OE quality return hose is vehicle specific and designed to be a direct replacement for the original components. These links properly connect the sway bar to the vehicles chassis. Rein automotive products provide you with the proper fit, form and function for European vehicles. With fitments for some of the world’s finest automobiles, including Audi, BMW, Mercedes Benz, Mini, Porsche, Saab, Volkswagen, and Volvo, all Rein Automotive genuine replacement parts are guaranteed original manufacturer quality. Every part is manufactured with top quality materials to ensure it has the same tolerances as the part that came on the car to provide ease of installation and long lasting durability.

Product Features:
  • Original Equipment fit, form and function
  • Manufactured from premium raw materials
  • Premium OE design
  • Right fit the first time
  • For European vehicles
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Carquest Premium – Fuel Cap: 10844, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10844)

Fuel Cap: 10844, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack

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$39.49
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.

Product Features:
  • Passes all state and federal emissions tests
  • Manufactured from durable, long-life materials
  • Reduces air pollution with proper sealing and venting
  • Independently tested for emission control
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Carquest Premium – Locking Fuel Cap: 10582, Push In, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10582)

Locking Fuel Cap: 10582, Push In, Direct Fit, Provides Tight Seal, 1 Pack

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$19.79
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.

Product Features:
  • Protects your fuel from theft and vandalism
  • Passes all state and federal emissions tests
  • Manufactured from durable, long-life materials
  • Reduces air pollution with proper sealing and venting
  • Independently tested for emission control
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Carquest – Fuel Injector Seal Kit (Part No.274838)

Fuel Injector Seal Kit

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$8.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • Designed to OE standards for ease of installation
  • High-quality materials withstand extreme conditions
  • Undergoes extensive testing to ensure reliability
  • As a global manufacturer of automotive aftermarket products, we maintain complete quality control throughout the manufacturing process
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Elring – Fuel Injector Seal (Part No.C1010250098ELR)

Fuel Injector Seal

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$5.69
Fuel Injector Seal

Delphi – Fuel Tank Cleaning Kit (Part No.FC01)

Fuel Tank Cleaning Kit

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$12.49
To perform a complete fuel pump replacement, clean the tank every time. Order the Delphi Fuel Tank Cleaning Kit (Part FC01). Remember, the original pump went into a clean fuel tank, to ensure the same level of performance, the new pump should too. 100 ye

Product Features:
  • Helps avoid premature fuel pump failure
  • Lint free towel included
  • Low suds formulation
  • Removes harmful contaminants from the fuel tank
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Pierburg – Electric Fuel Pump (Part No.E300065558APG)

Electric Fuel Pump

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$409.38
PIERBURG Fuel Pumps excel through their highly developed technology, optimum pumping characteristics when hot, and their low noise level. For over 80 years PIERBURG has been a leading manufacturer of fuel pumps for European vehicles

Product Features:
  • Made in Europe – 100% from OE factories and thus OE Standard
  • Optimal hot fuel supply properties and low noise level
  • Online Service and Product Information
  • Provides OE performance and dependability Installation Note: To avoid future warranties clean tank and change fuel filter when installing a new pump
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Bosch – Electrical Fuel Pump Kit with Filter (Part No.67897)

Electrical Fuel Pump Kit with Filter

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$236.99
All Bosch fuel pumps conform to an “OE or greater” standard for fit, form and function. This means you get a long-lasting, high-performing pump that firs right the first time.

Product Features:
  • OE Fit
  • OE Form
  • OE Function
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APA/URO Parts – Fuel Sender Seal (Part No.E2050269587APA)

Fuel Sender Seal

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$13.20
Fuel Sender Seal

Bosch – Fuel Pressure Regulator O-Ring (Part No.C3002290581BOS)

Fuel Pressure Regulator O-Ring

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$4.63
Bosch is one of the largest global suppliers of automotive products, developing, manufacturing and supplying precision OE components and systems to vehicle manufacturers and the automotive aftermarket. 5mm x 1.5mm
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Bosch – Fuel Injector Seal (Part No.C101016838BOS)

Fuel Injector Seal

from

$2.05
Bosch is one of the largest global suppliers of automotive products, developing, manufacturing and supplying precision OE components and systems to vehicle manufacturers and the automotive aftermarket.
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Beck/Arnley – New Fuel Injector (Part No.158-0229)

New Fuel Injector

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$85.99
Beck/Arnley parts meet foreign nameplate OE specifications for form, fit and function. Our product specialists work with a network of global sourcing partners so you can install the right part with confidence.

Product Features:
  • Matches OE form, fit and function
  • Premium materials and all new components
  • High quality construction for durability
  • Constructed to withstand an engine environment
  • Application specific for this vehicle
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Carquest – Fuel Injector (Part No.63873)

Fuel Injector

from

$124.05
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • Designed to OE standards for ease of installation
  • Stainless steel calibration slide and spring assembly prevents corrosion within the fuel control body leading to an extended service life
  • Precision wound and trimmed solenoid windings allow the computer to command efficient delivery of fuel
  • High-temp Viton O-rings enable prolonged sealing of injector under extreme heat conditions
  • Fiber optic yttrium aluminum garnet “YAG” laser welding and 100 million cycle testing ensure quality in every box
  • With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues
  • BWD is a global manufacturer of original equipment and aftermarket fuel injection products, complete quality control is maintained through the manufacturing process from componentry to finished product
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Carquest Premium – Multi Purpose Relay (Part No.RAA1749)

Multi Purpose Relay

from

$36.49
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – Barometric Pressure Sensor Connector (Part No.PTA1104)

Barometric Pressure Sensor Connector

from

$21.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
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Beck/Arnley – Relay (Part No.203-0131)

Relay

from

$31.49
Beck/Arnley parts meet foreign nameplate OE specifications for form, fit and function. Our product specialists work with a network of global sourcing partners so you can install the right part with confidence.

Product Features:
  • Matches OE form, fit and function
  • Made with high quality materials for internal coil and switch
  • Includes anti-corrosion terminals
  • Constructed to withstand an underhood environment
  • Application specific for this vehicle
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Vemo – Relay (Part No.P2020309952VMO)

Relay

from

$25.88
The Vemo Relay is an ideal high quality aftermarket replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:
  • Premium aftermarket replacement
  • Provides performance and dependability
  • Manufactured to meet OE specifications
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1991 BMW 525i Fuel and Emissions Systems

You count on your 1991 BMW 525i to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Fuel and Emissions Systems. With 30 Fuel and Emissions Systems ranging in price from $2.05 to $409.38, you’re sure to find everything you need for your 1991 BMW 525i.

Brands matter. If you want to shop a specific Fuel and Emissions Systems brand, we stock 13 different brands like Delphi, Carquest Premium, and Carquest. 1991 BMW 525i Fuel and Emissions Systems start as low as $2.05!

One of the best ways to find top quality OEM or aftermarket Fuel and Emissions Systems is by asking professionals. Short of that, you can shop with confidence thanks to our 4 extensive product reviews on 1991 BMW 525i Fuel and Emissions Systems.

Did we mention you can order your Fuel and Emissions Systems from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Fuel and Emissions Systems inventory for your 1991 BMW 525i below to get started!

Top-Rated Fuel and Emissions Systems Brands For Your 1991 BMW 525i

Trusted Fuel and Emissions Systems OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1991 BMW 525i running right for years to come. In our inventory you’ll find brands like Delphi, Carquest Premium, Carquest, and even more.

Popular Carquest Premium Fuel and Emissions Systems

You’ll find popular Carquest Premium brand products across Gas Caps. All are waiting to get your 1991 BMW 525i back on the road. Some of the top-rated Carquest Premium products in these categories are:

FAQs for 1991 BMW 525i Fuel and Emissions Systems

What are the most purchased Fuel and Emissions Systems for the 1991 BMW 525i?

Out of 30 Fuel and Emissions Systems for the 1991 BMW 525i, the most popular in our inventory are:
Fuel Tank Cleaning Kit
from $12.49
This product is not rated
Fuel Tank Cleaning Kit
Fuel Tank Cleaning Kits
Multi Purpose Relay
from $36.49
This product is not rated
Multi Purpose Relay
Mass Air Flow Sensor Relays
Electric Fuel Pump: With Hose Clamps, Hose Piece, Isolator, Pall Nut, Seal
from $148.99
This product is not rated
Electric Fuel Pump: With Hose Clamps, Hose Piece, Isolator, Pall Nut, Seal
Fuel Pumps