Oil Cooler for BMW 3 Series E36 (1992-1998)

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BMWs use an external oil cooler to regulate the temperature of engine oil and prevent a breakdown in viscosity and lubrication characteristics. If yours has suffered damage or developed a slight leak, make sure to replace it and keep the engine oil where it is supposed to be. Keeping this system properly serviced will significantly improve performance and increase engine life.
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E36 Turner Motorsport Stage 2 Oil Cooler Line Upgrade
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:338998
Part#: TEN3631S2K
Ships on Oct 2, 2026
Sale - Save 4% $ 551.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 531.57 USD
Free Shipping
Sale - Save 4%
$ 551.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 531.57 USD
Free Shipping
Made in the USA The TMS E36 Stage 2 Oil Cooler Line Upgrade Kit is an ideal alternative to the factory oil cooler lines, with multiple added benefits. In combination with our TMS AN-10 Oil Line Adaptor Kit (Part # TEN9910200), installing the TMS E36 Stage 2 Oil Cooler Line Upgrade saves you time and money. Unlike factory lines, the TMS E36 Stage 2 Oil Cooler Line Upgrade can work with vehicles equipped with superchargers or racing alternator pulleys. The TMS oil cooler lines now sit safely away from any moving parts like pulleys and serpentine belts. Our lines are made from HTP (High Temperature Polymer Braided), a synthetic line with multiple advantages over rubber or stainless lines.

We picked HTP lines for four reasons:
1) it insulates the oil from heat better than rubber or stainless lines,
2) the hose can hold a tighter bend radius without crimping or restricting oil flow, which makes routing the oil lines easier and more versatile,
3) the HTP line are less abrasive than stainless steel braided lines so they won�t rub through your factory power steering lines or any other rubber hose on the car,
4) weight savings � even if it is not much remember it all adds up.

Please Note, the following parts are required to install these lines:
� Euro oil filter housing
� Euro oil cooler and mounts
� (2) TMS AN-10 Oil Line Adaptor Kits (Part# TEN9910200)


This item was specifically designed for the following BMWs but may work in other applications:
1992-1999 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
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Rally Road - Corporate Logo
T#:401463
Part#: B015-8BL
Ships on Sep 21, 2026
$ 243.99 USD
Free Shipping
$ 243.99 USD
Free Shipping
Rally Road - Corporate Logo
T#:401511
Part#: RROCCK
Ships on Sep 21, 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

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