BMW 525xi Engine Internals

Your One-Stop Shop For Trusted BMW 525xi Engine Internals

If you’re in search of BMW 525xi Engine Internals aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 10 Engine Internals from top brands with prices ranging from $23.99 to $83.99.

Beyond great prices, we stock trusted brands manufacturing all types of Engine Internals for your BMW 525xi. Of the 6 OEM and aftermarket parts brands we carry, some of the most popular are National, Kolbenschmidt, and Felpro.

And don’t forget to read customer reviews across all Engine Internals categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Engine Internals have to cost top dollar, and we prove it. Browse our top BMW 525xi Engine Internals below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential BMW 525xi Engine Internals

Kolbenschmidt – Main Bearing Set (Part No.A20101807058KS)

Main Bearing Set

from

$78.50
KS crankshaft main bearing sets provide maximum load-bearing capacity, anti-seize and low wear and friction. KS main bearing sets are manufactured with aluminum-tin sliding material and the innovative aluminum-zinc-bismuth alloy in which bismuth replaces lead. From the strands continuously cast on site, strip is generated in defined and coordinated rolling and annealing operations for subsequent cladding. The various steel-aluminum composites are finally produced by roll bonding. Innovative coatings also ensure optimal running-in behavior and low-wear continuous running. The spectrum of possible surface coatings at KS Gleitlager extends from galvanic films deposited electro-chemically and sputter layers applied electro-physically in a high vacuum, to synthetic antifriction coatings.

Product Features:
  • Original Equipment Manufacturer
  • Maximum Load-Bearing Capacity
  • Low Wear and Friction
  • Advanced Surface Coatings
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Driveworks – Crankshaft Seal (Part No.S-229005)

Crankshaft Seal

from

$23.99
Product Features:
  • Brand may vary by location
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National – Multi Purpose Seal (Part No.229005)

Multi Purpose Seal

from

$39.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
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National – Multi Purpose Seal (Part No.710785)

Multi Purpose Seal

from

$66.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
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Felpro – REAR MAIN SEAL SET (Part No.BS 40757)

REAR MAIN SEAL SET

from

$83.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Application specific design to ensure a perfect fit
  • Meets or exceeds all original equipment specifications
  • Engineered and manufactured specifically for repair applications
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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Corteco – Crankshaft Seal (Part No.A8060184944CFW)

Crankshaft Seal

from

$39.74
Crankshaft Seal

Corteco – Crankshaft Seal (Part No.A806091566CFW)

Crankshaft Seal

from

$35.31
Crankshaft Seal

Mahle – Piston Ring Set (Part No.A2050284251MAH)

Piston Ring Set

from

$27.45
MAHLE Original piston rings lead the way in ring technology and innovation for the Aftermarket – after all, MAHLE is the largest manufacturer of piston rings in the world. MAHLE Original rings are at the forefront of light vehicle piston ring technology. Extensive OE connections mean that MAHLE Original rings have the technological edge. Things like the CP-20 oil ring, narrow compression rings, steel compression rings for gasoline engines, low-tension oil rings and coated compression rings for diesels all came from the OE. The MAHLE Original performance line proves time and again that it should be the ring of choice under every hood – regardless of the application. Grey cast iron or ductile iron was traditionally the material of choice for automotive applications – today, steel is preferred over iron by more and more engine builders. Steel compression ring technology has been used in heavy-duty applications for over 30 years. That know-how has become essential to the design and engineering of today’s automotive engines. Steel piston rings offer higher tensile strength, higher yield strength, greater fatigue life, and greater hardness while still offering a lower ring mass. These factors lead to better stress resistance, reduced groove pound-out, longer service life, better conformability, superior oil economy, and improved blow-by control while still lowering friction.

Product Features:
  • Ease of installation makes them the premier choice for rebuilders everywhere.
  • The CP-20 rings can withstand the harsh operating environments in today’s engines.
  • The CP-20 consists of a barrel-faced top compression ring for better seal and quicker break-in, a reverse torsional twist second ring for better oil control
  • The CP-20 design oil ring that is easier to install
  • Chemically polished for better oil drain-back
  • A 20 degree ear angle to ensure side seal around the ring
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National – Redi-Sleeve (Part No.99353)

Redi-Sleeve

from

$82.99
Redi-Sleeve

National – Redi-Sleeve (Part No.99204)

Redi-Sleeve

from

$49.99
Designed to provide enhanced endurance and maximum contamination exclusion while ensuring proper fit, form and function.
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Engine Internals Brands You Can Trust For Your BMW 525xi

6 trusted brands of Engine Internals line our shelves, ready to help keep your BMW 525xi running smooth. Below are some of the most popular brands and their top Engine Internals offerings:

Most Purchased BMW 525xi Engine Internals from National

When you buy the most frequently purchased National brand Engine Internals, you can be confident it will be the right part for your BMW 525xi. Here are the National Engine Internals Advanced Auto customers buy the most:
Multi Purpose Seal
from $39.99
This product is not rated
Multi Purpose Seal
Crankshaft Seals
Multi Purpose Seal
from $66.99
This product is not rated
Multi Purpose Seal
Crankshaft Seals
Main Bearing Set
from $78.50
This product is not rated
Main Bearing Set
Oversized Main Bearings

FAQs for BMW 525xi Engine Internals

What are the most purchased Engine Internals for the BMW 525xi?

Out of 10 Engine Internals for the BMW 525xi, the most popular in our inventory are:
Multi Purpose Seal
from $39.99
This product is not rated
Multi Purpose Seal
Crankshaft Seals
Multi Purpose Seal
from $66.99
This product is not rated
Multi Purpose Seal
Crankshaft Seals
REAR MAIN SEAL SET
from $83.99
This product is not rated
REAR MAIN SEAL SET
Crankshaft Seals