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BMW E31 850Ci M73 5.4L

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BMW E31 850Ci M73 5.4L Engine Parts & Accessories

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Lower Radiator Mount - Priced Each

ES#37686 - 17111178412 - Lower Radiator Mount - Priced Each - Rubber lower mount for your radiator - Genuine BMW - BMW

Rubber lower mount for your radiator

Brand:
Genuine BMW - Corporate Logo
ES#:
37686
Mfg#:
17111178412
In Stock
$5.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Switch

ES#2602122 - 61311378073 - Radiator Fan Switch - Measures radiator air temperature enabling the fan to turn off or on - Facet - BMW

Measures radiator air temperature enabling the fan to turn off or on

Brand:
Facet - Corporate Logo
ES#:
2602122
Mfg#:
61311378073
Ships in 1 Business Day
$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Dowel - Priced Each

ES#17669 - 11111743118 - Dowel - Priced Each - 14.5MM - Genuine BMW - BMW

14.5MM

Brand:
Genuine BMW - Corporate Logo
ES#:
17669
Mfg#:
11111743118
In Stock
15% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$8.53

This product was last offered at the strikethrough price on
07-14-2026

$7.26 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Housing Rubber Mount

ES#2534486 - 11421436982 - Oil Filter Housing Rubber Mount - 2 used per engine - URO - BMW

2 used per engine 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2534486
Mfg#:
11421436982
In Stock
$4.61 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fan Blade

ES#2813459 - 11521712110 - Fan Blade - Replace your brittle fan blades before it sends a blade through your radiator - Hamburg Tech - BMW

Replace your brittle fan blades before it sends a blade through your radiator We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813459
Mfg#:
11521712110
In Stock
ON SALE!
$36.99

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

$34.22 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Hose

ES#33534 - 13531726960 - Fuel Hose - Often used in close conjunction with the fuel pressure regulator. - Genuine BMW - BMW

Often used in close conjunction with the fuel pressure regulator.

Brand:
Genuine BMW - Corporate Logo
ES#:
33534
Mfg#:
13531726960
In Stock
2% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$44.99

This product was last offered at the strikethrough price on
08-28-2026

$43.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pro Dry S Air Filter

ES#518842 - 31-10047 - Pro Dry S Air Filter - Higher flow, higher performance - oil-free, washable and reuseable! - AFE - BMW

Higher flow, higher performance - oil-free, washable and reuseable! 2 required per engine

Brand:
AFE - Corporate Logo
ES#:
518842
Mfg#:
31-10047
In Stock
20% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$95.00

This product was last offered at the strikethrough price on
08-28-2026

$76.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Yellow Relay - Priced Each

ES#169405 - 61361389105 - Yellow Relay - Priced Each - Yellow relay used for multiple applications. - Genuine BMW - BMW

Yellow relay used for multiple applications.

Brand:
Genuine BMW - Corporate Logo
ES#:
169405
Mfg#:
61361389105
Ships in 3 Business Days
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Cap

ES#25569 - 11611727176 - Vacuum Cap - Diameter is 7.0MM - Genuine BMW - BMW

Diameter is 7.0MM

Brand:
Genuine BMW - Corporate Logo
ES#:
25569
Mfg#:
11611727176
In Stock
$8.99

This product was last offered at the strikethrough price on
03-04-2026

$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 90C

ES#24835 - 11531704704 - Thermostat - 90C - Includes sealing o-ring and top half of housing. - Genuine BMW - BMW

Includes sealing o-ring and top half of housing.

Brand:
Genuine BMW - Corporate Logo
ES#:
24835
Mfg#:
11531704704
Ships in 1-2 days
3% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$151.99

This product was last offered at the strikethrough price on
08-28-2026

$146.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil - Priced Each

ES#2813619 - 12131748017 - Ignition Coil - Priced Each - Get your engine working flawlessly with new ignition coils - Includes new coil and boot - Hamburg Tech - BMW

Get your engine working flawlessly with new ignition coils - Includes new coil and boot We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813619
Mfg#:
12131748017
Ships in 1 Business Day
$32.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner

ES#21672 - 11281736857 - Accessory Belt Tensioner - Used for both the alternator and air conditioning belts - Genuine BMW - BMW

Used for both the alternator and air conditioning belts For vehicles with production date up to 09/1997

Brand:
Genuine BMW - Corporate Logo
ES#:
21672
Mfg#:
11281736857
Ships in 2 Business Days
6% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$304.99

This product was last offered at the strikethrough price on
08-28-2026

$286.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor

ES#4316487 - 13621703993 - Coolant Temperature Sensor - Monitors coolant temperature - Bavarian Autosport - BMW

Monitors coolant temperature 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4316487
Mfg#:
13621703993
Ships on Sep 28, 2026
Auto Notify
ON SALE! SAVE 20%
$20.99

This product was last offered at the strikethrough price on
05-02-2026

$16.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMW Air filter

ES#3676614 - 13721715881 - BMW Air filter - Keep your engine breathing fresh air. - Hengst - BMW
ECS Tuning recommends this product.

Keep your engine breathing fresh air. 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!
2 required per engine

Brand:
Hengst - Corporate Logo
ES#:
3676614
Mfg#:
13721715881
In Stock
$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Belt Tensioner

ES#21654 - 11281715626 - Belt Tensioner - Keeps proper tension on your accessory belt - Genuine BMW - BMW

Keeps proper tension on your accessory belt

Brand:
Genuine BMW - Corporate Logo
ES#:
21654
Mfg#:
11281715626
Ships in 7 Business Days
6% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$150.99

This product was last offered at the strikethrough price on
08-28-2026

$141.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Parts & Accessories

Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.

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