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

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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.

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Achilles Motorsports - Corporate Logo
T#:1150773
Part#: 11-AM-UOPSK-M54
In Stock
$ 270.99 USD
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$ 270.99 USD
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The M54 engine has well-documented issues caused by harmonics. The extreme vibrations cause the weak oil pump shaft to shear off or the oil pump nut to come loose and fall off, all of which results in an instant loss of oil pressure. Achilles Motorsports decided to develop a solution to fix all of these known issues. 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! Key Features: Hardened Chromoly centerless ground shaft EDM Drilled Bolt with a piece of safety wire included Grade 8 extended length hardware to secure the gear to the shaft Left hand threaded to prevent it from unexpectedly coming loose Exclusive Square key lock shaft and drive gear 100% serviceable & rebuildable without the need for grinding NOTE: Professional installation required! The shaft requires being pressed into the oil pump's inner rotor.
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Achilles Motorsports Oil Pan Baffle Kit - BMW M52TU M54
For Dual Vanos Engines with a production date from 09/1998+
Achilles Motorsports - Corporate Logo
T#:1150766
Part#: 11-AM-OPB-M54
In Stock
$ 159.99 USD
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$ 159.99 USD
Free Shipping
SpecE46 Legal! The Achilles Motorsports Oil Pan Baffle was designed and manufactured to be used on racing, high-performance track, and street driven cars. Each baffle is precision laser cut from .090" heat-treated aluminum then hand-assembled and test fit to ensure accuracy and ease of installation. Achilles Motorsports' baffle design incorporates dual trap doors and a unique oil deflector that prevents oil from splashing out of the sump under hard braking. Together, these help minimize the sloshing of the oil inside the oil pan and keep oil accumulated around your pickup tube. The factory BMW oil pan doesn't do a very good job of keeping oil accumulated around the oil pick-up tube in high g-force situations. By keeping oil accumulated around the pickup tube you can eliminate the costly loss of oil pressure and potential damage to other vital engine parts commonly caused by high g-forces from hard acceleration and braking and high-speed cornering. Professional welding is required for installation! For use with BMW oil pan: 11131432703 During installation, while the oil pan is removed, we HIGHLY RECOMMEND upgrading your factory oil pump with the Achilles Motorsport Upgraded Oil Pump Shaft Kit (T#1150773). After numerous instances of sheered-off oil pump shafts and oil pump nuts coming loose, resulting in an instant loss of oil pressure, Achilles decided to come up with a solution - Don't let it happen to you!
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Rally Road - Corporate Logo
T#:401511
Part#: RROCCK
Ships on Nov 30, 2026
Starting at $ 243.99 USD
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Starting at $ 243.99 USD
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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

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Upgraded Oil Pump Shaft & Installation Kit
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:27372104
Part#: 11AMUOPSK-M54KT2
In Stock
$ 427.99

This product was last offered at the strikethrough price on
05-15-2026

$ 422.99 USD
Free Shipping on orders $49 and up
$ 422.99 USD
Free Shipping on orders $49 and up

Experience peace of mind with Achilles Motorsports' upgraded oil pump shaft kit, designed specifically to address the well-known harmonics-related issues plaguing the M54 engine. Say goodbye to worries about oil pump shaft failures causing sudden oil pressure drops.

Achilles Motorsports goes above and beyond, crafting their oil pump shafts from the toughest materials and subjecting them to rigorous heat treatment processes for maximum strength. The core of this kit features a hardened Chromoly shaft, precision centerless ground to ensure absolute accuracy. What sets this kit apart is its exclusive square key lock system, preventing gear slippage and reinforcing the gear mounting area for added durability.

No more concerns about the oil pump nut coming loose—Achilles Motorsports has replaced it with an extended-length bolt, EDM drilled for safety wire, ensuring a secure fit in all conditions. Avoid costly engine repairs due to oil pump failures by taking proactive measures with this comprehensive upgrade kit.

This kit, curated by the team at Turner Motorsport, includes everything you need for a complete upgrade:

Achilles Motorsports Upgraded Oil Pump Shaft Liqui Moly Molygen 5w-40 Oil (6 liters) Hengst Oil Filter Oil Drain Plug and Reminder Sticker Elring Oil Pan Gasket IWIS Oil Pump Chain Upgrade your M52TU/M54 engine and shield it from potential catastrophic failure with this meticulously crafted upgrade kit from ECS Tuning.

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HARD Motorsport - Corporate Logo
T#:593621
Part#: OILADPTR
Special Order: No Guaranteed ETA
$ 62.00 USD
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$ 62.00 USD
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The HARD Motorsport Oil Cooler Fitting Adaptor Plate allows you to upgrade your oil cooler lines to a flexible braided hose that can be routed in any direction, giving the ability to upgrade or relocate your oil cooler. This kit replaces the oil cooler hard lines with two -10 AN fittings, mounting bracket, O-rings, and adaptor bracket, which is CNC machined stainless steel.
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Oil Drain Plug
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:41188174
Part#: 11137535106TKT
In Stock
Sale - Save 47% $ 8.99

This product was last offered at the strikethrough price on
09-22-2026

$ 4.80 USD
Free Shipping on orders $49 and up
Sale - Save 47%
$ 8.99

This product was last offered at the strikethrough price on
09-22-2026

$ 4.80 USD
Free Shipping on orders $49 and up
Includes a one time use crush washer.

Liqui Moly MolyGen Oil Change Kit / Inspection I
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:15710747
Part#: 111375351060-KT
In Stock
Sale - Save 6% $ 111.99

This product was last offered at the strikethrough price on
08-31-2026

$ 105.00 USD
Free Shipping on orders $49 and up
Sale - Save 6%
$ 111.99

This product was last offered at the strikethrough price on
08-31-2026

$ 105.00 USD
Free Shipping on orders $49 and up
This new generation oil is made with a quality synthetic base and includes a molecular friction modifier for reduced friction and wear. It also glows under UV light so leaks can be easily traced! This unique oil contains a fluorescent green chemical friction modifier to smooth out hard metal surfaces, reducing overall engine wear and heat due to friction. Tests have shown a reduction in friction coefficient of as much as 15%! MolyGen oil is also a great choice for modern turbocharged engines which produce much more heat. The kit contains: Seven Quarts of Liqui Moly MolyGen Engine Oil Oil Filter Kit Drain Plug with Crush Washer
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Ina - Corporate Logo
T#:42301988
Part#: ZC0107
Ships in 8 Business Days
$ 20.99 USD
Free Shipping on orders $49 and up
Ensure peak lubrication performance and long-term engine reliability with the OEM INA Engine Oil Pump Chain

Oil Filter Housing Gasket Replacement Kit - With Billet Drain-Back Va...
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:59954869
Part#: 060233LA01KT2
Ships on Dec 1, 2026
New Item
Sale - Save 15% $ 367.99

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

$ 312.00 USD
Free Shipping
Sale - Save 15%
$ 367.99

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

$ 312.00 USD
Free Shipping

Includes everything you need to reseal and upgrade your leaking oil filter housing gasket: gaskets, hardware, VANOS line, oil pressure switch, oil service kit, and our upgraded billet aluminum oil drain-back valve.

The Turner Motorsport Billet Oil Filter Housing Drain-Back Valve is designed as a direct-fit upgrade for your factory oil filter housing. CNC-machined from high-strength billet aluminum, this upgraded valve restores positive sealing to keep the oil filter housing fully primed. Maintaining this hydraulic prime ensures rapid oil pressure stabilization upon startup, directly mitigating dry-start bearing wear and top-end lifter starvation without requiring the purchase of a complete OEM housing assembly.

Features & Benefits:

Keeps the oil filter housing primed with oil to eliminate noisy dry startups Precision-machined, anodized billet aluminum check valve body with zinc-plated steel plunger and spring Maintenance-free sealed design engineered for lifetime durability Easy installation — pry the old one out and press the new one in during oil filter housing gasket service

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