OEM replacement thermostat with housing and gasket for B46 and B48.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with the earlier Gen1 B48/B46 only - not compatible with the later Gen2 B48 (TU) engines
Brand:
ES#:
3198177
Mfg#:
11537644811
ON SALE!
$544.99
This product was last offered at the strikethrough price on 06-25-2026
$517.48 USD
Add to Cart
Free Shipping
on orders $49 and up
Lifetime Replacement
Eliminate oil and vacuum leaks and replace your PCV with a brand new valve cover from Elring
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4940595
Mfg#:
B09.610
$255.99 USD
Add to Cart
Free Shipping
on orders $49 and up
Lifetime Replacement
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
3250887
Mfg#:
11157623745
5% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$72.99
This product was last offered at the strikethrough price on 03-04-2026
$68.99 USD
Add to Cart
Free Shipping
on orders $49 and up
Lifetime Replacement
Replace those Worn Out Main Bearings!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Std. Size
Brand:
ES#:
4745333
Mfg#:
MB5784SI
$239.99 USD
Add to Cart
Free Shipping
Lifetime Replacement
Increase your engines power potential with premium Carrillo connecting rods!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4507073
Mfg#:
CAR-CRS-B48-WMC
$1399.99 USD
Add to Cart
Free Shipping
Lifetime Replacement
A premium upgrade designed to deliver unparalleled fuel system reliability and versatility.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4883068
Mfg#:
601-0331
$699.99 USD
Add to Cart
Free Shipping
on orders $49 and up
Lifetime Replacement
Replacement VANOS central valve, located within the VANOS sprockets.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
3028906
Mfg#:
11368617694
7% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$212.99
This product was last offered at the strikethrough price on 06-28-2026
$198.99 USD
Add to Cart
Free Shipping
on orders $49 and up
Lifetime Replacement
Positioned above the oil pan, this end cover closes the balance shaft journal.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
2848237
Mfg#:
11117797932
$15.99 USD
Add to Cart
Free Shipping
on orders $49 and up
Lifetime Replacement
Unlock maximum airflow and performance from your B46/B48
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
5435049
Mfg#:
HW-446
ON SALE!
SAVE 15%
$129.99
This product was last offered at the strikethrough price on 06-25-2026
$110.49 USD
Add to Cart
Free Shipping
Lifetime Replacement
Fuel pump with filter and built in level sensor.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4818564
Mfg#:
16117344066
ON SALE!
SAVE 20%
$270.99
This product was last offered at the strikethrough price on 05-02-2026
$216.23 USD
Add to Cart
Free Shipping
on orders $49 and up
Monitors intake pressure to determine engine load
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4766524
Mfg#:
13628637900
ON SALE!
SAVE 21%
$76.99
This product was last offered at the strikethrough price on 05-02-2026
$61.19 USD
Add to Cart
Free Shipping
on orders $49 and up
Lifetime Replacement
Applies tension to the accessory belt to prevent slippage
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
3609927
Mfg#:
11288580360
4% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$188.99
This product was last offered at the strikethrough price on 06-28-2026
$181.99 USD
Add to Cart
Free Shipping
on orders $49 and up
Lifetime Replacement
Found on the fuel venting system, part of the evap system
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
3193123
Mfg#:
16137464301
Limited Qty Sale
$462.99
This product was last offered at the strikethrough price on 05-02-2026
$418.99 USD
Add to Cart
Free Shipping
on orders $49 and up
Lifetime Replacement
Replacement expansion tank cap for your BMW
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4732065
Mfg#:
17135A1BD89
6% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$34.99
This product was last offered at the strikethrough price on 06-28-2026
$32.99 USD
Add to Cart
Free Shipping
on orders $49 and up
Lifetime Replacement
Mounted to the charge pipe.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4766523
Mfg#:
13628637896
ON SALE!
SAVE 21%
$73.99
This product was last offered at the strikethrough price on 05-02-2026
$58.74 USD
Add to Cart
Free Shipping
on orders $49 and up
Lifetime Replacement
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
3028937
Mfg#:
13517642466
5% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$1292.99
This product was last offered at the strikethrough price on 06-28-2026
$1226.99 USD
Add to Cart
Free Shipping
on orders $49 and up
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.