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BMW Performance Crankshaft Parts

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S55 "Bulletproof" Crank Kit

ES#4365387 - ECSs55bpKT - S55 "Bulletproof" Crank Kit - .or at least as "Bulletproof" as your F8X S55 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service. - Assembled By ECS - BMW

...or at least as "Bulletproof" as your F8X S55 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4365387
Mfg#:
ECSS55BPKT
Ships on Aug 11, 2026
ON SALE!
$786.99

This product was last offered at the strikethrough price on
01-03-2026

$754.27 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

N55 "Bulletproof" Crank Kit

ES#4365385 - ECSe90n55bpKT - N55 "Bulletproof" Crank Kit - .or at least as "Bulletproof" as your E9X N55 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service. - Assembled By ECS - BMW

...or at least as "Bulletproof" as your E9X N55 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4365385
Mfg#:
ECSE90N55BPKT
In Stock
ON SALE!
$573.99

This product was last offered at the strikethrough price on
03-19-2026

$560.28 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Performance Main Bearing Set - N55

ES#4759214 - 5150-HPMBS-N55 - Performance Main Bearing Set - N55 - Performance Coated Main Bearing Set for the N55 Engine - Std. Size - 5150 Autosport - BMW

Performance Coated Main Bearing Set for the N55 Engine - Std. Size affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
5150 Autosport - Corporate Logo
ES#:
4759214
Mfg#:
5150-HPMBS-N55
Ships in 3 Business Days
$549.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

5150 AutoSport High Performance Main Bearing Set, BMW S55

ES#4736759 - 5150-HPMBS-S55 - 5150 AutoSport High Performance Main Bearing Set, BMW S55 - Replace your Stock Main Bearings with 5150's Upgraded Alternative! - 5150 Autosport - BMW

Replace your Stock Main Bearings with 5150's Upgraded Alternative! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
5150 Autosport - Corporate Logo
ES#:
4736759
Mfg#:
5150-HPMBS-S55
Ships in 3 Business Days
$549.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ARP Main Stud Kit - B58

ES#4752945 - ARP-MSK-B58 - ARP Main Stud Kit - B58 - Upgraded Main Studs for B58! - 5150 Autosport - BMW

Upgraded Main Studs for B58! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
5150 Autosport - Corporate Logo
ES#:
4752945
Mfg#:
ARP-MSK-B58
Ships in 3 Business Days
$229.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Performance Main Bearing Set - .25 Oversize

ES#4736408 - 7M1532H-.25 - High Performance Main Bearing Set - .25 Oversize - .25 Oversize Bearings - ACL - BMW

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

Brand:
ACL - Corporate Logo
ES#:
4736408
Mfg#:
7M1532H-.25
In Stock at Vendor
$376.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Main Bearing Set - M5X

ES#4758994 - 5150-HPMBS-M50 - Performance Main Bearing Set - M5X - Performance Coated Main Bearing Set for the M5X Engine Platform - Std. Size - 5150 Autosport - BMW

Performance Coated Main Bearing Set for the M5X Engine Platform - Std. Size affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
5150 Autosport - Corporate Logo
ES#:
4758994
Mfg#:
5150-HPMBS-M50
Ships in 3 Business Days
$299.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Main Bearing Set - M54

ES#4758963 - 5150-HPMBS-M54 - Performance Main Bearing Set - M54 - Performance Coated Main Bearing Set for the M54 Engine - Std. Size - 5150 Autosport - BMW

Performance Coated Main Bearing Set for the M54 Engine - Std. Size affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
5150 Autosport - Corporate Logo
ES#:
4758963
Mfg#:
5150-HPMBS-M54
Ships in 3 Business Days
$274.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

"Spline Lock" Crank Hub Solution

This "Complete Package" provides the OEM hardware required for installation, ensuring your timing remains rock-solid even under extreme track conditions or high-horsepower builds. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
5446120
Mfg#:
VTT-NS55CHSCP
Ships in 10 Business Days
$889.99 USD
Free Shipping

"Spine Lock" Crank Hub

The VTT N55/S55 Spline Lock Hub offers a sophisticated, non-invasive alternative to the labor-intensive "drill and pin" methods used to secure BMW crankshafts. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
5446119
Mfg#:
VTT-NS55CHO
Ships in 10 Business Days
$819.99 USD
Free Shipping

VTT N54 “Spline Lock” CrankHub Solution Package W/ Crank Bolt Capture

A truly remarkable solution from Vargas that will eliminate the risk of a spun crank hub. Includes crank bolt capture & hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4699325
Mfg#:
VTTCRANKHUBPKG
Ships in 10 Business Days
$934.99 USD
Free Shipping

S55 4-Pin Crank Hub & Comprehensive Installation Kit

ES#5341089 - s55cchiKT - S55 4-Pin Crank Hub & Comprehensive Installation Kit - Features the Insane Performance S55 4-Pin One-Piece Crank Hub kit plus all of the installation components needed such as gaskets, hardware, and timing parts that should be replaced during installation. - Assembled By ECS - BMW

Features the Insane Performance S55 4-Pin One-Piece Crank Hub kit plus all of the installation components needed such as gaskets, hardware, and timing parts that should be replaced during installation. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
5341089
Mfg#:
S55CCHIKT
Ships on Aug 14, 2026
Auto Notify
$2181.99

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

$2177.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

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