2003 BMW 525i Belts and Hoses

Essential 2003 BMW 525i Belts and Hoses

Driveworks – Poly Rib Belt Serpentine Belt; 61.5 Long, 6 Rib Count (Part No.615K6)

Poly Rib Belt Serpentine Belt; 61.5 Long, 6 Rib Count

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$26.49
The Driveworks belt is designed to provide better belt-to-pulley contact. The specialized rubber compound incorporates a high temperature polymer formulated to maximize load carrying requirements and belt life. This Driveworks ribbed belt has been constructed and engineered to meet the stringent demands of today’s automotive drive systems. The Driveworks ribbed belt delivers long-lasting dependable belt life.

Product Features:
  • Constructed with heat and ozone resistant EPDM rubber
  • Fiber is added to the rib stock to reinforce the rubber and reduce noise from worn and misaligned pulleys
  • Made with treated polyester cord to reduce belt stretch
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Dayco – Molded Heater Hose; EPDM Rubber, 31/32 Inch Diameter, 21 1/2 Inch Length (Part No.88505)

Molded Heater Hose; EPDM Rubber, 31/32 Inch Diameter, 21 1/2 Inch Length

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$33.99
Providing reliable service in applications requiring molded hoses in small diameters, the Dayco small I.D. heater hose is designed to replace OEM coolant hoses. Made with the same bends and routing as the original assembly, this molded hose is meant to fit the vehicle precisely. The knitted reinforcement and synthetic EPDM construction provide high-strength performance and resistance to detrimental environmental elements, coolants and temperature variations of -40°F (-40°C) to +257°F (+125°C) and the “quick connect” end allows for fast, convenient installation.

Product Features:
  • Meets the requirements of SAE J20R3, Class D-1
  • Designed to meet Type EC electro-chemical requirements as specified in SAE J1684, which prevents inner tube deterioration caused by the build-up of static electric charges
  • Engineered as an OEM replacement
  • The knitted polyester reinforcement provides high burst strength and resists degradation from temperature extremes and moisture
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INA – Air Conditioning Belt Tensioner, w/ Pulley (Part No.R1088189120INA)

Air Conditioning Belt Tensioner, w/ Pulley

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$98.76
Air Conditioning Belt Tensioner, w/ Pulley

Dayco – Bottom Cog V-Belt; 32 Inch Long, Exact Fit Premium Quality (Part No.15320)

Bottom Cog V-Belt; 32 Inch Long, Exact Fit Premium Quality

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$12.49
Dayco has combined raw-edge construction and a smooth top to ensure high performance on vehicles and drives that utilize V-belts. The Dayco high performance V-belt delivers more flexibility and increases airflow around the belt so it runs cooler and lasts longer. Three plies of neoprene impregnated fabric resist heat, oil and grease while a specially-formulated treatment of the polyester cord provides the strength, stability and reliability that are required for one of the most innovative, top-performing V-belts.

Product Features:
  •  Provides greater durability and flexibility – 35% stronger than all previous versions
  • Prevents electromechanical interference issues on modern vehicles
  •  Resists heat, oil and grease
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Original Equipment – Booster Vacuum Hose (Part No.N4020686858OEA)

Booster Vacuum Hose

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$24.82
Booster Vacuum Hose

Gates – Vulco-Flex½ II Flexible Coolant Hose (Part No.25476)

Vulco-Flex½ II Flexible Coolant Hose

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$29.49
Product Features:
  • Improved sealing surface for greater leak resistance
  • High flexibility for easy installation
  • Maximum vehicle coverage with minimum inventory
  • Resistant to heat, oil and ozone
  • Rated for SAE 20R5 Class D-2 performance
  • Temperature Range: up to +257 Deg. F (+125 Deg. C)
  • Note: Gates recommends replacing clamps each time a new coolant hose is installed
  • Caution: Do not use for fuel or oil transfer applications
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Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 19.75" Long, 1.50" Diameter (Part No.E70344)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 19.75" Long, 1.50" Diameter

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$20.99
The Dayco curved radiator hose features knitted reinforcement, a protective sleeve and a synthetic EPDM rubber construction for high-strength performance, protection against abrasion and resistance to oil, mud, salt, road debris, ozone and coolants. It can also withstand temperature variations of -40 Deg. F (-40 Deg. C) to +257 Deg. F (+125 Deg. C). The inner base tube is reinforced with knitted rayon for maximum strength and burst resistance for the life of the hose.

Product Features:
  • Meets SAE J20R4, Class D-1 requirements
  • Meets Type EC electro-chemical requirements as specified in SAE J1684, which prevents inner tube deterioration caused by the build-up of static electric charges
  • Provides excellent protection against external elements
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Dayco – Serpentine Idler/Tensioner Pulley; Steel, 76mm Dia., 28mm Width, Smooth (Part No.89059)

Serpentine Idler/Tensioner Pulley; Steel, 76mm Dia., 28mm Width, Smooth

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$51.99
Dayco idler/tensioner pulleys are built with smoother surfaces and tighter dimensional tolerances, which translates to less vibration and longer belt life. In addition to stamped, forged steel and powdered metal pulleys, Dayco also designs ultra-strong pl

Product Features:
  • Designed for the majority of automotive vehicle applications on the road today
  • High-quality materials help resist wear and improve belt life
  • Features premium lubricated bearings to extend service life
  • Meets or exceeds OE quality
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Dayco – Serpentine Idler/Tensioner Pulley; Direct Fit, 80 mm Diameter, 24.5 mm Smooth (Part No.89089)

Serpentine Idler/Tensioner Pulley; Direct Fit, 80 mm Diameter, 24.5 mm Smooth

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$50.99
Dayco idler/tensioner pulleys are built with smoother surfaces and tighter dimensional tolerances, which translates to less vibration and longer belt life. In addition to stamped, forged steel and powdered metal pulleys, Dayco also designs ultra-strong plastic pulleys with specially formulated glass-filled polymers that resist wear and tear. Premium lubricated ball bearings and double high temperature seals ensure peak bearing performance, the most critical element of a pulley’s service life.

Product Features:
  • Designed for the majority of automotive vehicle applications on the road today
  • High-quality materials help resist wear and improve belt life
  • Features premium lubricated bearings to extend service life
  • Meets or exceeds OE quality
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CRP – Clamp – Hose (Part No.4I1001694834CRP)

Clamp - Hose

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$3.20
Clamp – Hose

Rein – Heater Pipe Line (Part No.R3055279112RIN)

Heater Pipe Line

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$43.29
Heater Pipe Line

Dorman – Idler/Tensioner Pulley: Specific Fit, Polyamide, 70 mm Diameter (Part No.419-657)

Idler/Tensioner Pulley: Specific Fit, Polyamide, 70 mm Diameter

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$45.49
This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models, properly restoring critical vehicle operations.

Product Features:
  • Direct replacement – this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehicles
  • Restores performance – fixes a failed, squealing or groaning noise from a worn idler pulley
  • Application specific – reverse engineered from the original design on certain vehicle years, makes and models
  • Trustworthy quality – backed by team of engineers and quality specialists in the United States
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CRP – Clamp – Hose (Part No.4I10078005CRP)

Clamp - Hose

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$3.84
Clamp – Hose

Dorman – Oil Separator Vent Tube (Part No.B2019751923DOR)

Oil Separator Vent Tube

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$43.41
PCV Hoses allows crankcase pressure to escape the engine in a controlled manor. Plus, now with Dorman’s PCV Valve Hoses you can replace just the hose, without the expense and hassle of installing a complete PCV Hose assembly, saving time, money and labor.

Product Features:
  • Constructed of high quality materials for long lasting use
  • Direct replacement for a proper fit every time
  • Easy to install
  • Manufactured to strict engineering quality standards
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Rein – Oil Separator Hose (Part No.B2019269910RIN)

Oil Separator Hose

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$68.56
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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Dorman – Help – PCV Vent Hose BMW (Part No.46106)

PCV Vent Hose BMW

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$24.29
Proper crankcase ventilation is key to smooth performance and engine longevity. Made from quality materials to resist cracking and brittleness, this PCV hose replaces a worn or leaking original equipment hose.

Product Features:
  • Ideal replacement – this PCV tubing replaces the original hose on specified vehicle years, makes and models
  • Durable materials – this PCV hose is designed to withstand exposure to extreme temperatures and oil vapors to resist cracking and leaking
  • Cost-effective solution – offers original equipment quality at a competitive price
  • Quality tested – this part has undergone try-on and material testing to ensure a quality fit and long service life
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Dorman – Help – Oil Separator Upper Vent Tube (Part No.46045)

Oil Separator Upper Vent Tube

from

$30.99
Proper crankcase ventilation is key to smooth performance and engine longevity. Made from quality materials to resist cracking and brittleness, this PCV hose replaces a worn or leaking original equipment hose.

Product Features:
  • Ideal replacement – this PCV tubing replaces the original hose on specified vehicle years, makes and models
  • Durable materials – this PCV hose is designed to withstand exposure to extreme temperatures and oil vapors to resist cracking and leaking
  • Cost-effective solution – offers original equipment quality at a competitive price
  • Quality tested – this part has undergone try-on and material testing to ensure a quality fit and long service life
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Dorman – Automatic Belt Tensioner (Tensioner Only) (Part No.419-036)

Automatic Belt Tensioner (Tensioner Only)

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$132.99
This accessory drive belt tensioner assembly is designed to match the fit of an original equipment assembly on specified vehicles. It is engineered to help ensure proper belt tension when an original belt is slipping, broken, or worn from fatigue.

Product Features:
  • Direct replacement – this accessory drive belt tensioner assembly is designed to match the fit of an original equipment assembly on specified vehicles
  • Ideal solution – engineered to help ensure proper belt tension when an original belt is slipping, broken, or worn from fatigue
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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Dayco – Serpentine Belt Tensioner; 1 Piece, HD, Built To Outperform And Outlast OE Parts (Part No.89342)

Serpentine Belt Tensioner; 1 Piece, HD, Built To Outperform And Outlast OE Parts

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$70.99
The Dayco automatic belt tensioner features Dayco’s original, patented flat spring design to provide less operating range variation. It reduces the risk of premature accessory bearing failure due to high tension and lessens the risk of belt noise and slip

Product Features:
  • Endures the toughest conditions while promoting quieter performance and longer life
  • Features a steel pivot tube on specific designs for enhanced stability
  • Built to outperform and outlast competitive OE parts
  • Rust resistant construction
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Elring – Water Pump O-Ring (Part No.G3059279771ELR)

Water Pump O-Ring

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$3.97
Water Pump O-Ring

Rein – Water Hose (Part No.CHE0245R)

Water Hose

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$8.29
Rein Automotive OE quality coolant hoses fit European vehicles the way the original manufacturer intended. Designed to be direct replacements for OE hoses and hose assemblies, Rein hoses are identical to the OEM, from the size and shape of their branches to the thermoplastic quick connect fittings.

Product Features:
  • Reduces installation time.
  • No cutting, refitting or adjusting the hose.
  • Prevents leaks and comebacks from reusing old quick connectors and o-rings.
  • Resistant to heat, salt, road debris, oil and other contaminants.
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Gates – Vulco-Flex« II Flexible Coolant Hose (Part No.25477)

Vulco-Flex« II Flexible Coolant Hose

from

$17.79
Gates Vulco-Flex(R) II hose will bend in almost any direction. It easily replicates the angles and planes of a wide variety of expensive original equipment coolant hose, for quick, easy replacement.

Product Features:
  • Improved sealing surface for greater leak resistance
  • High flexibility for easy installation
  • Maximum vehicle coverage with minimum inventory
  • Resistant to heat, oil and ozone
  • Rated for SAE 20R5 Class D-2 performance
  • Temperature Range: up to +257 Deg. F (+125 Deg. C)
  • Note: Gates recommends replacing clamps each time a new coolant hose is installed
  • Caution: Do not use for fuel or oil transfer applications
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Rein – Breather Hose (Part No.ABV0195)

Breather Hose

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$50.99
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 – Air Pump Hose (Part No.B6030298365RIN)

Air Pump Hose

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$38.58
Air Pump Hose

Vaico – Air Pump Hose (Part No.B6030414125VCO)

Air Pump Hose

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$57.91
Air Pump Hose

Litens – Serpentine Belt Tensioner Kit: Includes Belt, Tensioner, and any applicable Idler Pulleys (Part No.LV999141A)

Serpentine Belt Tensioner Kit: Includes Belt, Tensioner, and any applicable Idler Pulleys

from

$149.99
This Litens Serpentine Belt Drive Component Kit fits 1999-2006 BMW 320i, 325Ci, 325i, 325xi, 330Ci, 330i, 525i, X3, Z3 w/2.2/2.5/3.0L. These kits make it easy to maintain your entire front end accessory drive system. Eliminate the need to search for individual parts by purchasing this all-in-one solution. Front end accessory drives require maintenance at specific intervals, and parts should be replaced as part of your regularly scheduled tune-up to ensure your vehicle is at its best. Each kit contains a Litens belt tensioner, Bando serpentine belt, and any necessary idler pulley(s). All required hardware is included for the installation . Application specific instructions are also conveniently included. All parts meet or exceed OE fit, function, and performance. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket.
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2003 BMW 525i Belts and Hoses

You count on your 2003 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 Belts and Hoses. With 62 Belts and Hoses ranging in price from $1.29 to $269.99, you’re sure to find everything you need for your 2003 BMW 525i.

Brands matter. If you want to shop a specific Belts and Hoses brand, we stock 17 different brands like Dayco, Driveworks, and Litens. 2003 BMW 525i Belts and Hoses start as low as $1.29!

One of the best ways to find top quality OEM or aftermarket Belts and Hoses is by asking professionals. Short of that, you can shop with confidence thanks to our 814 extensive product reviews on 2003 BMW 525i Belts and Hoses. Some of the top-rated Belts and Hoses products we carry are Serpentine Belt Tensioner; 1 Piece, HD, Built To Outperform And Outlast OE Parts with 4.4 stars and Curved Radiator Hoses: EPDM Rubber, Standard Duty, 12" Long, 1.59" Diameter with 3.3 stars.

Did we mention you can order your Belts and Hoses 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 Belts and Hoses inventory for your 2003 BMW 525i below to get started!

Top-Rated Belts and Hoses Brands For Your 2003 BMW 525i

Trusted Belts and Hoses OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2003 BMW 525i running right for years to come. In our inventory you’ll find brands like Dayco, Driveworks, Litens, and even more.

Popular Dorman – Help Belts and Hoses

You’ll find popular Dorman – Help brand products across PCV Hoses. All are waiting to get your 2003 BMW 525i back on the road. Some of the top-rated Dorman – Help products in these categories are:
Oil Separator Upper Vent Tube
from $30.99
(1)
Oil Separator Upper Vent Tube
PCV Hoses

Top-Rated Dayco Belts and Hoses


If Dayco are what you’re looking for, our inventory holds plenty. We stock Dayco brand Belts and Hoses for your 2003 BMW 525i, and some of our most reviewed Dayco parts include:
Poly Rib Belt Serpentine Belt; 60.5 Long, 6 Rib Count
from $37.99
(268)
Poly Rib Belt Serpentine Belt; 60.5 Long, 6 Rib Count
Serpentine Belts

FAQs for 2003 BMW 525i Belts and Hoses

What are the most purchased Belts and Hoses for the 2003 BMW 525i?

Out of 62 Belts and Hoses for the 2003 BMW 525i, the most popular in our inventory are:
Poly Rib Belt Serpentine Belt; 60.5 Long, 6 Rib Count
from $23.99
(21)
Poly Rib Belt Serpentine Belt; 60.5 Long, 6 Rib Count
Serpentine Belts

What are the top-rated 2003 BMW 525i Belts and Hoses?

Top-rated Belts and Hoses for your 2003 BMW 525i based on customer reviews/ratings are:
Serpentine Belt Tensioner; 1 Piece, HD, Built To Outperform And Outlast OE Parts
from $70.99
(22)
Serpentine Belt Tensioner; 1 Piece, HD, Built To Outperform And Outlast OE Parts
“My original idler pulley failed on my vehicle at 100,000 miles and left me stranded on a Friday night. I had to replace the idler pulley (Dayco 89089)”
Serpentine Belt Tensioner: 1 Piece
from $69.99
(3)
Serpentine Belt Tensioner: 1 Piece
“Parts fit great, easy to install”