Oiling System for BMW 3 Series E46 (1999-2005)

Clear BMW chassis

Please ensure your correct model is selected

Tasked with keeping everything properly lubricated, the oiling system is one of the most if not THE most fundamental parts of the engine. Make sure that everything is in good working order and flowing properly to ensure your engine has a long and trouble-free service life.

Sub-Categories

Sort By:

Oil Level Sensor - E46 E39 E60 E38 X3 X5 Z3 Z4 Z8
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Bremmen Parts - Corporate Logo
T#:395203
Part#: 12617508003
In Stock
Sale - Save 30% $ 64.99

This product was last offered at the strikethrough price on
11-07-2026

$ 45.49 USD
Free Shipping on orders $49 and up
Sale - Save 30%
$ 64.99

This product was last offered at the strikethrough price on
11-07-2026

$ 45.49 USD
Free Shipping on orders $49 and up
This is the oil level sensor / sender for BMW E46 E39 E60 E38 X3 X5 Z3 Z4 Z8.When this part fails it will illuminate a check light on the dash which indicates it needs to be replaced. Includes o-ring. This item fits the following BMWs: 1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330xi M3 2008+ E90 BMW 335d 1999-2003 E39 BMW 528i 525i 530i M5 1998-2003 E39 BMW 540i 2004-2005 E60 BMW 525i 530i 1998-2001 E38 BMW 740i 740il 750il 2004-2006 E85 BMW X3 2.5i X3 3.0i 2000-2006 E53 BMW X5 3.0i 2000-2003 E53 BMW X5 4.4i X5 4.6is 1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i 2001-2002 Z3 BMW Z3 M Roadster Z3 M Coupe 2003-2006 Z4 BMW Z4 2.5i Z4 3.0i 2000-2003 E52 BMW Z8
Show More Show Less
Bimmerworld - Corporate Logo
T#:1120864
Part#: 100.11.530.0003
In Stock
$ 110.99 USD
Free Shipping
$ 110.99 USD
Free Shipping

Upgrade your BMW's oil pressure sensor setup with the Oil Distribution/Sending Block. This versatile block is designed to mount in the stock oil pressure sensor location on the oil filter housing or in the original location on the engine block. It allows the use of up to two aftermarket sending units (not included) along with the factory sensor, providing accurate pressure and temperature measurements. Engineered for reliability and cleanliness, it ensures a reliable setup for your BMW's oil pressure monitoring needs.

  • Mounts in stock oil pressure sensor location for easy installation
  • Allows use of up to two aftermarket sending units in addition to the factory sensor
  • Incorporates factory sending unit for utilizing the factory oil pressure light
  • Threaded for one M12x1.5 port and two 1/8th NPT ports for versatility
  • Includes banjo bolt and crush washers for secure installation
  • Compatible with various BMW engines including M20, M42, M50, M52, M54, N52, N54, S50, S52, S54, S65, M10, S14, and M30
Show More Show Less
Rally Road - Corporate Logo
T#:401511
Part#: RROCCK
Ships on Nov 30, 2026
Starting at $ 243.99 USD
Free Shipping
Starting at $ 243.99 USD
Free Shipping

Rally Road Productions, Inc. is a team supported by a group of people with great abilities in their area of expertise. From the "web guy" and driving instructor friends, to owners of various machine shops, they have surrounded ourselves with people that can be trusted to create and manufacture quality products. This is the key to ensuring everything that they sell will perform as it was intended. The goal is to increase customer satisfaction and make the customization or performance enhancement of your vehicle a more enjoyable venture.

This oil cooler system is race tested and proven to outflow the euro M3 oil filter housing. Additionally, this particular system uses a sealing mechanism to direct the oil flow through the cooler lines and then through the oil filter.  Other cooler caps do not provide this seal and therefore the external oil coolers and lines act as a "balloon".  The lines and cooler are pressurized, but oil does not flow through them.  Flowing oil means it is being cooled and not just acting as an external reservoir.

Flow testing reveals that the oil cooler cap will outflow the Euro M3 Oil Filter Housing by more than 80% at the same, pressure, RPM, and oil temperature. In the upper RPM range, there is nearly a 100% improvement in flow from the RallyRoad oil cooler cap when compared to the Euro M3 oil filter housing.  This is a massive improvement over OE and is a worthwhile upgrade, especially in engines that see severe duty.

Features:

  • -8AN o-ring ports to provide a leak free fitting without the use of Teflon tape or sealant used by other oil cooler caps.
  • Viton o-rings are used throughout to maintain function and sealing in a high-temperature oil environment.
  • Use of the stock filter cap bolt to reduce cost and simplify installation.
  • An internal sealing mechanism to direct oil flow through the oil cooler and through the filter.
  • 1/8" NPT side port for external oil pressure gauge.

Kit Includes:

  • Oil filter cap with fittings
  • Oil filter sealing ring
  • BMW MANN Oil Filter and gasket

This part fits the following BMWs
1992-1999 E36 323i 325i 325is 328i 328is

Show More Show Less

Rein - Corporate Logo
T#:6857
Part#: 11431740045
In Stock
$ 7.13 USD
Free Shipping on orders $49 and up
ENGINE O-RING 11431740045

Bremmen Engine Oil Drain Plug - Includes Seal - BMW B38 B48 B46 B58 ...
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Bremmen Parts - Corporate Logo
T#:640158
Part#: 11137535106
In Stock
Sale - Save 30% $ 5.99

This product was last offered at the strikethrough price on
11-07-2026

$ 4.17 USD
Free Shipping on orders $49 and up
Sale - Save 30%
$ 5.99

This product was last offered at the strikethrough price on
11-07-2026

$ 4.17 USD
Free Shipping on orders $49 and up
Reduce chances of an oil leak when changing your vehicle's motor oil with a new drain plug and seal!
Victor Reinz - Corporate Logo
T#:593889
Part#: 11431740045
In Stock
$ 1.85 USD
Free Shipping on orders $49 and up
These small o-rings can cause big leaks once the become brittle from heat. Each time the dipstick is removed this o-ring needs replaced.

OEM Rein Magnetic Oil Drain Plug - M12x1.5 - BMW
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:38890945
Part#: HWU1041
In Stock
$ 18.99 USD
Free Shipping on orders $49 and up
Metal drain plug featuring a magnet that traps ferrous metal suspended in your oil. These magnetic drain plugs trap tiny particles that are unable to be caught by your oil filter, leaving you with a cleaner engine, and over time, saving your bearings and oil pump from unneeded wear.
Show More Show Less
Victor Reinz - Corporate Logo
T#:340629
Part#: 07119963151
In Stock
$ 2.99

This product was last offered at the strikethrough price on
08-16-2026

$ 1.89 USD
Free Shipping on orders $49 and up
$ 1.89 USD
Free Shipping on orders $49 and up
Replace your oil drain plug sealing washer ever oil change to prevent the chance of oil leaks and a stained driveway.

Victor Reinz - Corporate Logo
T#:375982
Part#: 11431717666
In Stock
$ 1.01 USD
Free Shipping on orders $49 and up
Used to seal the dipstick to the guide tube

Victor Reinz - Corporate Logo
T#:362335
Part#: 11431707164
In Stock
$ 7.19

This product was last offered at the strikethrough price on
08-26-2026

$ 6.12 USD
Free Shipping on orders $49 and up
$ 6.12 USD
Free Shipping on orders $49 and up
Rubber O-ring
Rein - Corporate Logo
T#:17738379
Part#: 11421744000
Ships in 2 Business Days
$ 25.99 USD
Free Shipping on orders $49 and up
Rein's OE equivalent oil cap prevents moisture and debris from entering and contaminating the system.
Victor Reinz - Corporate Logo
T#:369383
Part#: 12611744292
In Stock at Vendor
$ 8.99

This product was last offered at the strikethrough price on
08-26-2026

$ 7.99 USD
Free Shipping on orders $49 and up
$ 7.99 USD
Free Shipping on orders $49 and up
Used to seal sensor to the oil pan


Victor Reinz - Corporate Logo
T#:593892
Part#: 11127837024
Ships in 1-2 days
$ 14.54 USD
Free Shipping on orders $49 and up
Reuse your old oil cap! No need to throw away an otherwise good condition oil cap.
Rein - Corporate Logo
T#:591528
Part#: 11127509328
Back Ordered
$ 6.51 USD
Free Shipping on orders $49 and up
Includes the sealing gasket