Free Shipping on orders $99 and up! Some exclusions apply. Contiguous US only.

BMW E31 External Engine Parts

BMW E31 External Engine Parts Looking for parts under the hood of your BMW? This section is for parts and accessories mounted to, and around, the engine. 'External' engine components covers parts and systems up to and after the cylinder head. Examples include crankcase vent valves, secondary air systems, idle control valves, oil filler caps, valve cover trim, and more. For parts within the engine and cylinder head see our 'Internal Engine Components' section.
You're currently viewing parts for your (E31) 8 Series 1991-1997. Reset your chassis
For accurate results, specify your model below.
Valve Cover Trim Cap E32 E34 E38 E39 X5 with M60/M62 V8 engines Missing that little square cap with 3 silver stripes in your valve cover? This valve cover trim cap often gets misplaced when working on the M60/M62 engine. This fits E32 740i 740il E34 530i 540i E38 740i 740il E39 540i X5 x5 4.4i X5 4.6is thru 2003
When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
1992-1995 E34 BMW 530i 540i
1997-2003 E39 BMW 540i
1992-1994 E32 BMW 740i 740il
1995-2001 E38 BMW 740i 740il
1990-1998 E31 BMW 840i 840ci
2000-2003 E53 BMW X5 4.4i X5 4.6is
Genuine BMW
Part #: 11121736007
Price: $5.28 (USD) 
In Stock
Free Shipping Free Shipping
on orders $99 and up
Quantity:   
Oil Filler Cap with M logo - E36 M3 96-99 E46 M3 MZ3 This oil filler cap features the M logo and fits BMW E36 M3, E46 M3, and MZ3 with S52 and S54 engines.
When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
1996-1999 E36 BMW M3
2001-2006 E46 BMW M3
1998-2002 Z3 BMW M Coupe M Roadster
Genuine BMW
Part #: 11121405452
Price: $14.71 (USD) 
$17.21 (15% off MSRP)
In Stock
Free Shipping Free Shipping
on orders $99 and up
Quantity:   
Oil Filter Housing Rubber Mount - E39 540i, E38 740i 750i, E32,  E31 The oil filter housing rubber mounts are a common failure item on the E38 E39 with the M60, M62 engine and E31 E32 and E38 with the M70 M73 engine. Replace yours today with this Genuine BMW part. Sold individually.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
1997-2003 E39 BMW 540i
1988-1994 E32 BMW 750il
1995-2001 E38 BMW 740i 740il 750il
1990-1999 E31 BMW 840i 840ci 850i 850ci 850csi


Fits BMW Engines including:
M60,M62,M70,M73,M73N,S70
Genuine BMW
Part #: 11421436982
Price: $21.67 (USD) 
$24.87 (13% off MSRP)
Ships in 5 days
Free Shipping Free Shipping
on orders $99 and up
Quantity:   
Turner Plug-and-Play IAT Relocation Kit

All vehicles will lose some degree of performance due to heat soak under the right operating conditions.  Engine management systems constantly monitor operating conditions and modifying parameters based on sensor inputs. BMW integrated the intake air temp sensor in the MAF housing on models such as the E39 M5, and, being sandwiched behind a hot radiator and in some applications next to an even hotter valve cover, this is less than ideal for performance applications. Absorbing excess heat from its surroundings, the MAF can’t shed it fast enough, and the ECU reads an inaccurately high intake air temperature. Compensating for this false hot air measurement, the ECU pulls timing and runs a richer fuel mixture, resulting in a significant loss of torque.

What can you do?  Locate an intake air temp sensor in a location where it can properly measure incoming air temps and where it's less prone to heat soak. Mounting the sensor further away from the heat source and isolating it from the MAF housing, it can both resist the effects of heat soak longer and respond to temperature changes more quickly.  The result is you’ll experience reduced torque loss and more consistent power output when you’re pushing your engine hard. 

The Turner engineering team was initially skeptical of the claimed performance benefits of this modification. They first set out validate the functionality and performance benefit of a temp sensor relocation. Replicating stop-and-go traffic heat soak in a 2001 540i was a simple task in a controlled environment - their dynometer. First the car was heat soaked to simulate being stuck in traffic or moving at low speeds by running the car four times on the dyno with the dyno's cooling fans disabled. The fans were then turned on for three more runs to observe the recovery rate once air flow was reintroduced. The test: following this procedure once with a stock IAT, and once with their relocation kit in place. 

The result? Turner recovered 11lb-ft torque at 2500rpm through use of their relocation kit, with even greater recovery to be found for M5 owners. Here are the heat soak-related torque losses Turner experienced:

Stock IAT location:
18rwtq at 2500rpm
10rwtq at 3000rpm
9rwtq at 3700rpm

Turner IAT Relocation:
7rwtq at 2500rpm
5rwtq at 3000rpm
5rwtq at 3700rpm

**Click here for installation instructions**

The Turner engineering team designed a complete plug and play kit (unlike all other options on the market) that makes for quick, easy, and reversible installation. Weather-sealed connectors keep out the elements, while sheathed wiring offers a clean appearance underhood. With a harness nearly 3 feet long - the Turner IAT relocation kit offers flexibility in positioning, but not too long that you're left with unsightly excess wiring. Turner recommends positioning the sensor in a location away from engine heat, but still within the intake ducting to achieve accurate intake temp readings - such as the far side of the base of the airbox. Vehicles with cold air intakes with cone-style filters can even position the sensor in the end of the filter. Simply drill a hole in your (cool) location of choice and plug in the harness. More information including installation instructions and some good examples of sensor mounting locations can be found in our DIY PDF. 

We include everything you need to relocate your IAT, just select your desired sensor brand below - Genuine BMW or original equipment Beru.

Also the perfect plug-n-play option for anyone looking to upgrade their intake to utilize an Alpha-N tune!

Note for vehicles with M62 engine: applicable to 1999 and up

Turner Motorsport
Part #: 014579TMS
Price: $131.40 (USD) 
$139.45 (Sale - Save 6%)
Ships in 5 days
Free Shipping Free Shipping
N15 Design Secondary Air Pump Block Off Plate - with Gasket

For elimination of the air pump control valve, made from CNC machined 6061 aluminum.

 

N15 Design
Part #: SAPBOPG
Price: $29.49 (USD) 
In Stock
Quantity:   
OEM Bosch Idle Control Valve - E31 E32 E34 E38 E39 E46 M3, Z3M, Z4M

Rough or hunting idle? Stalling? Sputtering? These are all symptoms of poor fuel delivery or a vacuum leak in your intake system. This T-shaped idle regulating valve is one of the areas that you can check to fix these issues. The ICV is basically a electrically-driven throttle body that regulates the air/fuel mixture at light throttle openings. Over time, the ICV can become gummed up with oil and carbon, resulting in slow or blocked operation. Worst case, the electric motor inside will freeze which will stall the engine.

The ICV will typically need to be cleaned or replaced every 100k miles. It can be cleaned with carb cleaner but for seriously dirty or old ICVs you may want to replace the whole unit with a new one. You may also want to replace the Crankcase Vent Valve as it can also fill up with oil and carbon and replacement can be done at the same time as the ICV. On cars with V8 engines, we recommend replacing the rubber grommet between the valve and the manifold - Part # 13411733217

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!


This idle control valve fits the following BMWs:
1992-1998 E36 BMW M3 Euro Spec Models Only!
2001-2006 E46 BMW M3
1989-1995 E34 BMW 530I 540i
1997-2003 E39 BMW 540i M5
1988-1994 E32 BMW 740i 740il
1995-2001 E38 BMW 740i 740il
1990-1999 E31 BMW 840i 840ci
2001-2002 Z3 BMW Z3 M Roadster M Coupe
2006-2008 E85 BMW Z4 M Roadster M Coupe
2000-2003 E52 BMW Z8 Roadster

Bosch
Part #: 13411733090
Price: $210.59 (USD) 
Ships on Jul 24, 2018
Free Shipping Free Shipping
Quantity: