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BMW Engine Parts

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.

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ECS - Corporate Logo
T#:49996974
Part#: 059235LA01
In Stock
New Item
Sale - Save 20% $ 29.99

This product was last offered at the strikethrough price on
06-14-2026

$ 23.99 USD
Free Shipping
Sale - Save 20%
$ 29.99

This product was last offered at the strikethrough price on
06-14-2026

$ 23.99 USD
Free Shipping

If you're experiencing hard starting, flaky charging, or other electrical issues, your engine ground strap may be the culprit. On older BMWs, the engine ground strap is a thin, non-insulated cable that spans from the engine mount arm to the frame horn. Despite the seemingly simple nature of this part, on older cars, it is known to cause massive headaches. Due to its non-insulated design, years of exposure to water, dirt, and road salt will cause the wire to corrode, ultimately leading to complete failure. A break in this cable will cause an open circuit, resulting in issues with the vehicle's electrical system and potentially leading to a no-start condition.

To solve this issue, ECS has engineered an exact-fit, upgraded ground strap for your BMW! Unlike its OEM counterpart, this design features insulated, large-gauge copper wire for dependable conductivity and long-lasting durability. Additionally, factory-style lugs are zinc-coated, crimped, and soldered, ensuring protection against corrosion and oxidation.

Whether you're replacing a visibly corroded strap or proactively preventing failure, this solution from ECS is sure to provide lasting performance and protection.

FEATURES

Direct-fit replacement and upgrade for E30 (318i/is), E36, E39, E46, and others Solves intermittent grounding issues caused by aging OEM straps Clean, stealthy design that fits seamlessly in factory engine bays Factory length and lug orientation for drop-in fitment 2 AWG tinned copper cable for excellent conductivity and corrosion resistance Zinc-coated lugs, crimped and soldered to resist moisture and oxidation Black UL1015-grade insulation withstands oil, heat, and abrasion Discreet ECS label for a clean, OEM+ look Replaces OEM part numbers 12421737755 and 12421714262.

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ECS - Corporate Logo
T#:49996976
Part#: 059261LA01
In Stock
New Item
Sale - Save 25% $ 29.99

This product was last offered at the strikethrough price on
06-14-2026

$ 22.49 USD
Free Shipping
Sale - Save 25%
$ 29.99

This product was last offered at the strikethrough price on
06-14-2026

$ 22.49 USD
Free Shipping

If you're experiencing hard starting, flaky charging, or other electrical issues, your engine ground strap may be the culprit. On E70/E71 BMWs, the engine ground strap is a thin, non-insulated cable that spans from the left engine mount arm to the frame horn. Despite the seemingly simple nature of this part, on older cars, it is known to cause massive headaches. Due to its non-insulated design, years of exposure to water, dirt, and road salt will cause the wire to corrode, ultimately leading to complete failure. A break in this cable will cause an open circuit, resulting in issues with the vehicle's electrical system and potentially leading to a no-start condition.

To solve this issue, ECS has engineered an exact-fit, upgraded ground strap for your BMW X5/X6! Unlike its OEM counterpart, this design features insulated, large-gauge copper wire for dependable conductivity and long-lasting durability. Additionally, factory-style lugs are zinc-coated, crimped, and soldered, ensuring protection against corrosion and oxidation.

Whether you're replacing a visibly corroded strap or proactively preventing failure, this solution from ECS is sure to provide lasting performance and protection.

FEATURES

Direct-fit replacement and upgrade for E70 X5 and E71 X6 applications Solves intermittent grounding issues caused by aging OEM straps Clean, stealthy design that fits seamlessly in factory engine bays Factory length and lug orientation for drop-in fitment 2 AWG tinned copper cable for excellent conductivity and corrosion resistance Zinc-coated lugs, crimped and soldered to resist moisture and oxidation Black UL1015-grade insulation withstands oil, heat, and abrasion Discreet ECS label for a clean, OEM+ look Replaces OEM part number 12427557027.

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CTS - Corporate Logo
T#:50899212
Part#: HW-446
Ships in 7 Business Days
New Item
$ 129.99 USD
Free Shipping
$ 129.99 USD
Free Shipping
Unlock maximum airflow and performance from your BMW’s B46/B48 with the CTS Turbo Cast Turbo Inlet Pipe. Designed as a direct replacement for the restrictive factory inlet, this upgrade dramatically improves airflow to the turbocharger, allowing your engine to breathe easier and perform at its full potential.
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CTS - Corporate Logo
T#:50899213
Part#: HS-360
Ships in 7 Business Days
New Item
15% off MSRP $ 149.99

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

$ 127.99 USD
Free Shipping
15% off MSRP
$ 149.99

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

$ 127.99 USD
Free Shipping
Reduces radiant heat from the turbocharger and improves overall performance. Made from high-quality steel, this heat shield provides superior thermal protection, helping to lower intake air temperatures (IATs) and safeguard surrounding components from excessive heat.
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CTS - Corporate Logo
T#:50899215
Part#: HW-550
Ships in 7 Business Days
New Item
15% off MSRP $ 799.99

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

$ 679.99 USD
Free Shipping
15% off MSRP
$ 799.99

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

$ 679.99 USD
Free Shipping
The CTS Turbo B58 Port Injection Kit is designed for the Gen1 B58 engine, offering a seamless integration that looks as if it came factory-installed. This kit includes everything necessary to add multi-port injection, ensuring even fuel distribution across all cylinders. Compatible with popular injectors like 750cc and 950cc, it also supports the controller of your choice, whether you prefer Motiv Reflex or AIC-1. This kit is built for those who demand performance without sacrificing the clean, OEM look under the hood.
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