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2004 MINI Cooper John Cooper Works MC40 Coupe L4 1.6L

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2004 MINI Cooper John Cooper Works MC40 Coupe L4 1.6L Engine Electrical Parts

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xA Ultra WiFi Adapter

ES#5435385 - xA-Ultra-Adapter - xA Ultra WiFi Adapter - The ultimate OBD adapter designed to deliver exceptional speed, maximum connection stability, and great performance for flashing, coding, and live monitoring - xHP - BMW MINI

The ultimate OBD adapter designed to deliver exceptional speed, maximum connection stability, and great performance for flashing, coding, and live monitoring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
xHP - Corporate Logo
ES#:
5435385
Mfg#:
XA-ULTRA-ADAPTER
In Stock
$109.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Filter & Level Assembly

ES#37431 - 16146765124 - Fuel Filter & Level Assembly - Includes fuel filter and level sensor all in one unit - Genuine MINI - MINI

Includes fuel filter and level sensor all in one unit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine MINI - Corporate Logo
ES#:
37431
Mfg#:
16146765124
Ships in 3 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.

$809.99

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

$757.99 USD

Throttle Housing / Body

ES#4865970 - 13541503358 - Throttle Housing / Body - Electronic throttle sensor and assembly - Magneti Marelli - MINI

Electronic throttle sensor and assembly affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Magneti Marelli - Corporate Logo
ES#:
4865970
Mfg#:
13541503358
Back Ordered
$201.99

This product was last offered at the strikethrough price on
05-07-2026

$195.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor Tool - Angled Handle - 7/8" - Bavarian Autosport

ES#3673911 - B8800066 - Oxygen Sensor Tool - Angled Handle - 7/8" - Bavarian Autosport - Slotted, pivoting head has both hexagon and double hexagon drive. Angled handle reaches around obstructions. - Bav Auto Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche
ECS Tuning recommends this product.

Slotted, pivoting head has both hexagon and double hexagon drive. Angled handle reaches around obstructions. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bav Auto Tools - Corporate Logo
ES#:
3673911
Mfg#:
B8800066
Ships on Aug 10, 2026
Auto Notify
ON SALE! SAVE 25%
$49.99

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

$37.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#2019579 - 11780872674 - Oxygen Sensor - Priced Each - Keep your MINI's gas mileage up and running correctly - NTK - MINI

Keep your MINI's gas mileage up and running correctly affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For front or rear position on vehicles.

Brand:
NTK - Corporate Logo
ES#:
2019579
Mfg#:
11780872674
In Stock at Vendor
$210.99

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

$204.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel Pump W/ Fuel Level Sensor

ES#3524656 - 16146765121 - Fuel Pump W/ Fuel Level Sensor - Comes with fuel level sensor and fuel pump - Hamburg Tech - MINI

Comes with fuel level sensor and fuel pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with production from 7/2004

Brand:
Hamburg Tech - Corporate Logo
ES#:
3524656
Mfg#:
16146765121
In Stock
$159.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

MSD Performance Coil Pack / Red Wire Set

ES#3521479 - 8239kt2KT - MSD Performance Coil Pack / Red Wire Set - Includes performance wires from MSD with MSD Performance Red Coil pack - MSD Performance - MINI

Includes performance wires from MSD with MSD Performance Red Coil pack affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
MSD Performance - Corporate Logo
ES#:
3521479
Mfg#:
8239KT2KT
In Stock
$263.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Ignition Wire Set - Blue

ES#3173496 - 54058 - Performance Ignition Wire Set - Blue - Upgraded and Coated spark plug wires - NGK - MINI

Upgraded and Coated spark plug wires affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
NGK - Corporate Logo
ES#:
3173496
Mfg#:
54058
In Stock
$54.99

This product was last offered at the strikethrough price on
05-07-2026

$46.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#4820497 - 11780872674 - Oxygen Sensor - Priced Each - Keep your MINI's gas mileage up and running correctly - URO - MINI

Keep your MINI's gas mileage up and running correctly affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For front or rear position on vehicles.

Brand:
URO - Corporate Logo
ES#:
4820497
Mfg#:
11780872674
Back Ordered
Auto Notify
$73.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Throttle Housing / Body

ES#34029 - 13541503358 - Throttle Housing / Body - Electronic throttle sensor and assembly - Genuine MINI - MINI

Electronic throttle sensor and assembly affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine MINI - Corporate Logo
ES#:
34029
Mfg#:
13541503358
Ships in 3 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.

$539.99

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

$504.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor Tool - 22mm

ES#3673912 - B8800067 - Oxygen Sensor Tool - 22mm - 1/2" Drive - 7/8" x 6" - Extra Long - Bav Auto Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche
ECS Tuning recommends this product.

1/2" Drive - 7/8" x 6" - Extra Long affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bav Auto Tools - Corporate Logo
ES#:
3673912
Mfg#:
B8800067
Ships on Aug 10, 2026
Auto Notify
ON SALE! SAVE 20%
$29.99

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

$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Brisk Silver Racing DR10S Spark Plug - Priced Each

ES#4017472 - DR10S - Brisk Silver Racing DR10S Spark Plug - Priced Each - Featuring silver fine wire center electrode - Superior ignition ability increases engine power! - Brisk - Audi Volkswagen Mercedes Benz MINI

Featuring silver fine wire center electrode - Superior ignition ability increases engine power! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Four heat ranges colder than stock with a non-projected tip

Brand:
Brisk - Corporate Logo
ES#:
4017472
Mfg#:
DR10S
In Stock
8% off MSRP

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

$12.99

This product was last offered at the strikethrough price on
06-04-2026

$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Relay - Black

ES#169416 - 61366901469 - Relay - Black - For mutiple locations in the fuse box. - Genuine BMW - BMW MINI

For mutiple locations in the fuse box. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
4 Prong - Black : Relay Positioning (Interiors) - For windshield heating

Brand:
Genuine BMW - Corporate Logo
ES#:
169416
Mfg#:
61366901469
In Stock
3% off MSRP

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

$24.65

This product was last offered at the strikethrough price on
06-04-2026

$23.81 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Intensity Lithium-ION Battery - i34RX - 11.5lbs

ES#3617641 - i34RX - Intensity Lithium-ION Battery - i34RX - 11.5lbs - Replace your stock, heavy battery with a direct replacement, lightweight performance Lithium battery that weighs in at only 11.5lbs! - Braille - Audi MINI

Replace your stock, heavy battery with a direct replacement, lightweight performance Lithium battery that weighs in at only 11.5lbs! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship this item out of the US or with priority shippi

Brand:
Braille - Corporate Logo
ES#:
3617641
Mfg#:
I34RX
Ships in 6 Business Days
$949.99 USD
Free Shipping
on orders $49 and up

Boost X UltraSafe Lithium 4250 Amp Jump Starter - NOCO

ES#4389659 - GBX155 - Boost X UltraSafe Lithium 4250 Amp Jump Starter - NOCO - X for Extreme - Boost X is the next generation in jump packs with an all-new design and more powerful jump starts. This 12V battery jumper will jump gas vehicles up to 10.0L and diesel engines up to 8.0L. - NOCO - Audi BMW Volkswagen Mercedes Benz MINI Porsche

X for Extreme - Boost X is the next generation in jump packs with an all-new design and more powerful jump starts. This 12V battery jumper will jump gas vehicles up to 10.0L and diesel engines up to 8.0L. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
NOCO - Corporate Logo
ES#:
4389659
Mfg#:
GBX155
In Stock
16% off MSRP

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

$439.99

This product was last offered at the strikethrough price on
06-04-2026

$369.99 USD
Free Shipping
on orders $49 and up

New Alternator

ES#3676408 - 12317515030 - New Alternator - New, no core charge! - TYC - MINI

New, no core charge! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
TYC - Corporate Logo
ES#:
3676408
Mfg#:
12317515030
Ships in 6 Business Days
$235.99

This product was last offered at the strikethrough price on
05-07-2026

$228.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Electrical Parts

With automotive electrical content growing yearly, it has never been more important to keep your charging and electrical system in top working condition. ECS Tuning stocks a huge and constantly growing inventory of electrical sensors, electric motors, and electronic actuators from original equipment and name-brand aftermarket suppliers.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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