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Your Vehicle 2021 MINI Cooper S 3 Door B46C

2021 MINI Cooper S 3 Door B46C Engine Parts & Accessories

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ES#4012749 - 17138687503 - Coolant Expansion Tank - Replace your cracked or faded tank - Genuine MINI - BMW MINI

Replace your cracked or faded tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine MINI - Corporate Logo
ES#:
4012749
Mfg#:
17138687503
Ships in 3 Business Days
7% 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
03-05-2026

$140.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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

Brand:
Genuine MINI - Corporate Logo
ES#:
2734586
Mfg#:
13547619008
Ships in 3 Business Days
8% off MSRP

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

$793.99

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

$731.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Main drive belt that connects to the main pulley 6PK x 1175 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Dayco - Corporate Logo
ES#:
4766242
Mfg#:
11287952902
Ships in 1-2 days
$24.99

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

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

Includes throttle position sensor and gasket affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2733804
Mfg#:
13547619008
Ships in 3 Business Days
7% off MSRP

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

$793.99

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

$739.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Connects the intake air box to the turbo inlet affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2728390
Mfg#:
13717619268
Ships in 3 Business Days
4% off MSRP

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

$312.99

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

$301.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine MINI - Corporate Logo
ES#:
2975693
Mfg#:
11658626637KT
Ships in 3 Business Days
$3558.99

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

$3500.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mounts above the valve cover as the main engine cover affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine MINI - Corporate Logo
ES#:
4012575
Mfg#:
11148632412
Ships in 3 Business Days
7% off MSRP

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

$234.00

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

$217.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Overlay real carbon fiber fuel cap cover with JCW logo affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine MINI - Corporate Logo
ES#:
5443918
Mfg#:
16115A7AD86
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.

$127.00

This product was last offered at the strikethrough price on
06-05-2026

$119.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Mounts to the fuel tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine MINI - Corporate Logo
ES#:
4757120
Mfg#:
16115A4E031
Ships in 3 Business Days
7% off MSRP

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

$42.99

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

$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Main housing with oil cooler affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine MINI - Corporate Logo
ES#:
4012639
Mfg#:
11428580412
Ships in 3 Business Days
7% off MSRP

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

$804.99

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

$748.99 USD
Free Shipping
on orders $49 and up

Located on the turbo affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mitsubishi Turbocharger - Corporate Logo
ES#:
4933157
Mfg#:
11658691853
Ships in 1-2 days
$565.99

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

$549.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4012621 - 11258678931 - Piston Kit - One Piston ( 0 Size ) - Stock size piston with rings and hardware - Genuine MINI - MINI

Stock size piston with rings and hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine MINI - Corporate Logo
ES#:
4012621
Mfg#:
11258678931
Ships in 6 Business Days
7% off MSRP

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

$403.99

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

$375.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Covers over the gas cap itself in the cover pot, aspen white upgrade. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine MINI - Corporate Logo
ES#:
4562846
Mfg#:
51712470383
Ships in 6 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.

$108.00

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

$102.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Part of the evap system for the fuel, main line to the fuel filler neck affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine MINI - Corporate Logo
ES#:
2729053
Mfg#:
16117300652
Ships in 6 Business Days
8% off MSRP

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

$95.99

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

$87.99 USD
This product is lifetime replacement eligible Lifetime Replacement

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
180A

Brand:
Genuine MINI - Corporate Logo
ES#:
4374926
Mfg#:
12315A157A9
Ships in 9 Business Days
10% off MSRP

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

$1082.99

This product was last offered at the strikethrough price on
01-07-2026

$979.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Includes a 2200.00 Core charge, Factory built B48 2.0L engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine MINI - Corporate Logo
ES#:
4759416
Mfg#:
11002455333KT
Ships in 9 Business Days
$12220.99

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

$12121.99 USD

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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