Oiling System for BMW 3 Series E30 (1984-1991)

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:

Achilles Motorsport Upgraded Oil Pump Shaft Kit - S54 Engine Swap w/ ...
For S54 engine swapped E30 models using the M50 oil pump only!
For S54 engine swapped E30 models using the M50 oil pump only!
Achilles Motorsports - Corporate Logo
T#:1150774
Part#: 11-AM-UOPSK-S54C
Ships in 3 Business Days
$ 305.99 USD
Free Shipping on orders $49 and up
$ 305.99 USD
Free Shipping on orders $49 and up
Achilles Motorsports' S54 Swap oil pump upgrade kit is designed to work with late-model M50/S52 generation oil pumps. This is a typical conversion when retrofitting an S54 engine into a chassis such as an E30 or E34 that requires the use of a front sump oil pan. This kit can also be used to upgrade the Euro S50B30 3.0L Single Vanos engine oil pump to the later generation pump utilizing a higher volume pump. The ULTIMATE SOLUTION for your S54 Swapped car offered by Achilles Motorsports! Achilles takes their oil pump shafts to the extreme, using only the toughest materials and heat treatment processes to ensure optimum strength. The core of this kit is a hardened Chromoly shaft that is centerless ground to ensure absolute trueness. The shaft is engineered with an exclusive square key lock system that not only prevents the gear from ever spinning on the shaft but also adds strength to the area to which the gear mounts. Achilles Motorsports then replaced the pesky oil pump nut with an extended length bolt that is EDM drilled for safety wire to properly secure it for all conditions. Don't wait for your oil pump to fail and leave you stuck with costly engine repairs!
Show More Show Less
Mahle - Corporate Logo
T#:581122
Part#: OC49
Ships in 1 Business Day
$ 10.99 USD
Free Shipping on orders $49 and up
This is an OEM Mahle oil filter replacement oil filter kit for vehicles with the M20 engine. The oil filter prevents contaminants from reaching the engine and causing premature failure. Replace your filter at all recommended service intervals to ensure a long engine life. Replacement for Genuine BMW part # 11421707779.
Show More Show Less

K&P Engineering - Corporate Logo
T#:38419076
Part#: S66
In Stock
$ 139.00

This product was last offered at the strikethrough price on
05-03-2026

$ 126.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 139.00

This product was last offered at the strikethrough price on
05-03-2026

$ 126.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
Stainless steel filtration is not a new technology but is quickly gaining popularity in the automotive segment. With the ability to filter down as small as a paper filter element with the ability to be washed and reused! The K&P Engineering filter element is made from medical grade, type 304 stainless steel micronic filter cloth to provide unmatched protection against oil contamination and resultant engine damage. A one inch square of this material flows an incredible 1.9 gallons of oil per minute at only 1 PSI pump pressure. The adhesive used in the filter assembly process is good to 600 degrees Fahrenheit, far above normal engine operating temperatures. A super strength nickel-plated neodymium rare earth magnet is installed in the top of the element for magnetic pre-filtering of the oil. The sophisticated bypass is engineered for proper differential pressures and consistent operation, delivering a greater percentage of filtered oil while being very easy to clean. The twist lock design assures positive filter element placement and allows for easy disassembly, inspection, and cleaning. The quad-ring gasket doubles the seal between the filter and the engine. Finally, the filter housing is carved out of solid 6061T6 billet aluminum, which not only looks trick but aids in dissipating heat. K&P Engineering manufactures stainless steel filters for a vast array of engines around the world. Staying at the forefront of design and testing allows this company to offer a top-tier product for your European vehicle.
Show More Show Less

Mahle - Corporate Logo
T#:3726
Part#: OC25
In Stock
$ 11.99 USD
Free Shipping on orders $49 and up
Replacement oil filter kit for S14 engines, the 16v 4 cylinder powerplant that came in all 1987, 1988, 1989, 1990 & 1991 BMW M3. Replaces BMW part number 11421258039.

This oil filter fits the following BMWs:

1987-1991 E30 M3 2.3 & 2.5 liter
Show More Show Less
Mahle - Corporate Logo
T#:3584
Part#: 11421727300
Ships on Aug 5, 2026
$ 16.22 USD
Free Shipping on orders $49 and up
Replacement oil filter kit for many BMW 4 cylinders engines from 1989 to 1995 (see list below); This is for the BMW M42 16v 1.8 liter engine.

This filter fits the following BMWs:

1989-1991 E30 3 Series 4 cylinder - 318i, 318is 318ic
1992-1995 E36 3 Series 4 cylinder - 318i, 318is, 318ic & 318ti
Show More Show Less

Mahle - Corporate Logo
T#:3705
Part#: OC49
Back Ordered
$ 9.99 USD
Free Shipping on orders $49 and up
Replacement oil filter kit for the M20 12 valve inline 6 cylinder engine, found in many BMWs from 1985-1991. Same as BMW part number 11421266773.

This oil filter fits the following BMWs:

1985-1991 E30 3 Series 6 cylinder - including 325, 325e, 325es, 325i, 325is & 325ix
1985-1988 E28 5 Series 528e
1989-1990 E34 5 Series 525i
Show More Show Less