BMW Engine Parts for BMW 3 Series E46 (1999-2005)

Clear BMW chassis

Please ensure your correct model is selected

Turner Motorsport has everything you need to upgrade your BMW through our stages of performance or to keep your car in peak condition with our range of the latest in proven OEM cooling parts. Upgrade your cooling system and engine performance with the selections below to give your BMW a performance and reliability advantage.

Sub-Categories

Sort By:

Goldenwrench Supply Co - Corporate Logo
T#:53820895
Part#: S54OCCS
In Stock
New Item
$ 118.99

This product was last offered at the strikethrough price on
05-15-2026

$ 83.00 USD
Free Shipping on orders $49 and up
$ 83.00 USD
Free Shipping on orders $49 and up
Designed for Seamless Integration the Heritage Motorsport Oil Cap provides a Solid Aluminum Replacement for Aging Plastic units
Radium Engineering - Corporate Logo
T#:27905095
Part#: 20-0024
In Stock at Vendor
$ 28.99 USD
Free Shipping on orders $49 and up

Includes:

Anodized 4AN ORB Barbed Adapter Fitting, Black Ball Valve with 1/4" Barbs, 125psi @ 140F 4 feet of Radium 1/4" PCV Hose

OMP - Corporate Logo
T#:1614
Part#: EA-462
Back Ordered
$ 65.00 USD
Free Shipping
$ 65.00 USD
Free Shipping
OMP Battery Cut Off Switch / Kill Switch, for use in racecars as an emergency "kill switch", to depower the electrical system in the event of a crash or other emergency. This cut off switch is FIA approved, has 6 poles and alternator protection, as well as a removable key.
Show More Show Less

TurboSmart - Corporate Logo
T#:22591972
Part#: TS-0551-1011
In Stock at Vendor
10% off MSRP $ 430.99

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

$ 387.99 USD
Free Shipping on orders $49 and up
10% off MSRP
$ 430.99

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

$ 387.99 USD
Free Shipping on orders $49 and up

The Gen V WG38 Ultra-Gate 38 external wastegate is your cost-effective, high-performance solution. This 38mm external wastegate is meticulously designed for hassle-free bolt-on applications that make use of the 2-bolt flange.

Show More Show Less

Radium Engineering - Corporate Logo
T#:31059457
Part#: 20-1440
In Stock at Vendor
5% off MSRP $ 549.99

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

$ 522.99 USD
Free Shipping
5% off MSRP
$ 549.99

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

$ 522.99 USD
Free Shipping
Radium Engineering - Corporate Logo
T#:577815
Part#: 20-0070-02
In Stock at Vendor
5% off MSRP $ 199.99

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

$ 189.99 USD
Free Shipping
5% off MSRP
$ 199.99

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

$ 189.99 USD
Free Shipping
Aluminum large bore fuel rail for feeding your engine no matter the power level. Fuel rail also allows use of external fuel pressure regulators, pressure gauges, and pulse dampers. Safe for all fuel types including E85.
Show More Show Less

TurboSmart - Corporate Logo
T#:4921469
Part#: TS-0551-1012
Ships on Nov 30, 2026
10% off MSRP $ 430.99

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

$ 387.99 USD
Free Shipping
10% off MSRP
$ 430.99

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

$ 387.99 USD
Free Shipping
The Turbosmart GenV range is the Highest Flowing Wastegate range in the World. The GenV WG38 UltraGate38 External Wastegate is a Motorsport proven, cost-effective external wastegate. The GenV provides extensive user configuration, world-leading extended thermal performance, fatigue resistance, and best-in-class flow performance for optimum control and longevity. The GenV External Wastegate from Turbosmart was a ground-up rework of a classic and the only feature that rolled over from the Gen4 range was the mounting orientation. CFD optimized and validated in-house for maximum flow and thermal management, the GenV range has more features, options and performance than any other gate like it. A direct fit upgrade to all Gen4 Turbosmart wastegates and feature our unique collar-locking system, variable actuator cap, and base for easy, 360-degree optional routing of reference hoses, optional liquid-cooling provision, 1/8″ NPT reference ports and are provided with the full range of available springs.
Show More Show Less
E46 M3 Heavy Duty Aluminum Expansion Tank Kit & Performance Ignition ...
Our Doorbuster deals are in limited supply at these prices. Get yours while they're in stock! Can't find the perfect bundle? Call or chat with us to build a custom one. 10X Entries For Our Spin To Win Sweepstakes!
Doorbusters - Corporate Logo
T#:59954889
Part#: 008682LAKT
In Stock
New Item
Sale - Save 28% $ 902.52

This product was last offered at the strikethrough price on
11-07-2026

$ 649.00 USD
Free Shipping on orders $49 and up
Sale - Save 28%
$ 902.52

This product was last offered at the strikethrough price on
11-07-2026

$ 649.00 USD
Free Shipping on orders $49 and up
The last expansion tank you'll ever need! Upgrade to durable aluminum construction and leave failure-prone plastic behind & everything needed for a performance ignition service including NGK spark plugs and Turner ignition coils!
Show More Show Less

Radium Engineering - Corporate Logo
T#:53290958
Part#: 20-0589
In Stock at Vendor
New Item
5% off MSRP $ 99.99

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

$ 94.99 USD
Free Shipping on orders $49 and up
5% off MSRP
$ 99.99

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

$ 94.99 USD
Free Shipping on orders $49 and up

Black Forest Industries - Corporate Logo
T#:50934264
Part#: BFI-BMW-90-01
Ships on Dec 4, 2026
$ 199.99 USD
Free Shipping on orders $49 and up
Eliminate the "drive-line slop" common in the E36 and E46 chassis with this Stage 1 Engine Mount kit.
Black Forest Industries - Corporate Logo
T#:50934269
Part#: BFI-BMW-TRANS-01
Ships on Dec 4, 2026
$ 69.99 USD
Free Shipping on orders $49 and up
This kit is a "must-have" for any E36, E46, or E9X owner looking to tighten up their drivetrain's foundation and ensure long-term mechanical reliability.