BMW Engine Parts for BMW 3 Series E30 (1984-1991)

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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 Heavy Duty Ground Cable Upgrade (12421737755) - E30, E36, E39, E4...
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ECS - Corporate Logo
T#:49996974
Part#: 059235LA01
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06-14-2026

$ 23.99 USD
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$ 29.99

This product was last offered at the strikethrough price on
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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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Kolbenschmidt Engine Camshaft - BMW E30 E34 M20 2.5L
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Kolbenschmidt - Corporate Logo
T#:49335130
Part#: 11311716138
In Stock at Vendor
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$ 234.18 USD
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The camshaft has a critical job that impacts engine performance and efficiency. As the camshaft spins, the cam lobes open and close intake and exhaust valves, which is vital to the engine's operation. If the lobes become worn or damaged, the engine will suffer drastically. It is imperative to replace the camshaft when damaged or when wear occurs to prevent costly repair bills and to ensure the engine is operating smoothly and efficiently.
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VTT Turbocharger Inlet Flange - Garrett G40/42/45 V-Band - 86mm ID ...
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Vargas Turbo Technologies - Corporate Logo
T#:52270240
Part#: GARROUTT4G4045
Ships on Jul 23, 2026
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$ 37.99 USD
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$ 37.99 USD
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Upgrade your turbocharger exhaust connection with the VTT-FAB 86mm V-Band Outlet Flange, designed for the Garrett G40-G45 frame sizes.

Schwaben Piston Ring Specialty Toolset
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Schwaben - Corporate Logo
T#:53361638
Part#: 3594SCH01AKT
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This product was last offered at the strikethrough price on
05-03-2026

$ 98.07 USD
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Sale - Save 7%
$ 104.99

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

$ 98.07 USD
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Whether you are building a high-performance engine or simply performing a routine rebuild, getting your piston ring end gaps and installation right is critical for optimal engine performance, compression, and longevity. Designed to meet strict standards, this comprehensive toolset provides everything you need to file, measure, and install piston rings safely without causing damage.

KIT CONTENTS

Schwaben Piston Ring Filer

Easily modify piston rings for OEM engine rebuilds and boosted applications Cuts quickly and smoothly, allowing you to easily avoid filing in excess Durable, bench-mountable construction with a long-lasting diamond abrasive wheel Piston Ring Installation Tool

Ensures even tension distribution during expansion Accommodates all pistons ranging from 60 mm to 175 mm in diameter Features an easy thumb-release locking mechanism for quick and secure operation Feeler Gauge Set

16 blades - 0.002-0.025 inch thickness measurements

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Pro-Line Injector And Glow Plug Grease - 20g
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Liqui-Moly - Corporate Logo
T#:49787695
Part#: 22243
In Stock
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$ 6.99 USD
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This high-performance lubricant is formulated to prevent moisture ingress and oxidation, which are the primary causes of "frozen" injectors and glow plugs.
Shifter Rebuild Hardware Kit
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Genuine BMW - Corporate Logo
T#:55209882
Part#: 07119905KT
In Stock
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$ 4.80 USD
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Battery Tender Plus Advanced Battery Charging System
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Battery Tender - Corporate Logo
T#:49892371
Part#: BTT0210128
Back Ordered
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$ 69.99 USD
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Rein Aluminum Magnetic Oil Drain Plug - S/N63, M/N62, S/M70, M/N73, N...
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Rein - Corporate Logo
T#:53750214
Part#: HWU0115
Ships in 4 Business Days
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$ 17.99 USD
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Rein Oil Drain Plug with Aluminum Construction, OE Dimensions and Threading. Upgrade Over Stock with a Magnetic tip to collect unwanted debris

CSF Universal Large Single-Pass Oil Cooler - Universal Application ...
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Universal fitment design - modifications may be necessary to run this cooler
CSF - Corporate Logo
T#:53608839
Part#: 8371
Ships in 4 Business Days
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$ 499.00 USD
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$ 499.00 USD
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CSF redesigned this cooler and went with a more traditional inlet/outlet orientation. The new single pass design features high efficiency and high durability, but with vertically oriented inlet and outlet connections.
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Radium - Split-Flow Flex Fuel Sensor Adapter
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Radium Engineering - Corporate Logo
T#:53290958
Part#: 20-0589
In Stock at Vendor
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$ 99.99 USD
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Fuel Pressure Regulator
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SMP - Corporate Logo
T#:54388499
Part#: 13531743378
In Stock at Vendor
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$ 82.99 USD
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Engineered to strict tolerances, this replacement regulator ensures consistent, factory-calibrated fuel pressure to optimize injector duty cycles and restore lost performance.
BFI Transmission Mounts - Stage 1 - BMW E30 / E36 / E46 / E9X / Z3 / ...
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Black Forest Industries - Corporate Logo
T#:50934269
Part#: BFI-BMW-TRANS-01
Ships on Jul 30, 2026
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$ 69.99 USD
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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.


Vargas EWG Actuator To Garrett G25-G35 Housing Bracket - BMW EWG G25/...
For vehicles with Electronic Waste Gate
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Vargas Turbo Technologies - Corporate Logo
T#:51778114
Part#: VTT-FAB-BMW-EWG-
Ships on Jul 23, 2026
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$ 79.99 USD
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The Vargas EWG Actuator Bracket is the definitive solution for enthusiasts looking to merge BMW’s advanced factory EWG control with the high-performance capabilities of Garrett G-Series turbochargers.
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Black Forest Industries Engine Mounts - Stage 1 - BMW E30 / E36 / E46...
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Black Forest Industries - Corporate Logo
T#:50934264
Part#: BFI-BMW-90-01
Ships on Jul 30, 2026
New Item
$ 199.99 USD
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Eliminate the "drive-line slop" common in the E36 and E46 chassis with this Stage 1 Engine Mount kit.
Fuel Tank Strap Spacer And Bolt Kit - Each
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Genuine BMW - Corporate Logo
T#:55245796
Part#: 1611118XKT
Ships in 3 Business Days
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$ 13.29 USD
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This kit brings together the authentic BMW fuel tank spacer sleeve and the exact-spec M6 hex bolt with a captured washer.

Accessory Drive Belt Kit
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Genuine BMW - Corporate Logo
T#:55281779
Part#: 10865ACDKT
Ships in 6 Business Days
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$ 33.73 USD
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The Turner Motorsport Accessory Drive Belt Refresh Kit is the ultimate preventive maintenance package for your classic chassis.

Oil Cooler Hardware & Mount Kit
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Genuine BMW - Corporate Logo
T#:55317710
Part#: 17211OCHMKT
Ships in 5 Business Days
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$ 57.22 USD
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This Genuine BMW Oil Cooler Mounting Kit replaces your tired, rusted, and dry-rotted original hardware with fresh factory-original components.
DeatschWerks Fuel Injector Set - 650cc - Set of 6 - BMW M20, M50, & M...
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DeatschWerks - Corporate Logo
T#:53891631
Part#: 18U-09-0650-6
Ships in 7 Business Days
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$ 539.00 USD
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Upgrade your classic European powerplant with the seamless performance of the DeatschWerks 18U-09-0650-6 Fuel Injector Set.

DeatschWerks Fuel Injector Set - 900cc - Set of 4 - BMW E30 M3 ...
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DeatschWerks - Corporate Logo
T#:53891633
Part#: 18U-09-0900-4
Ships in 7 Business Days
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$ 409.00 USD
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The DeatschWerks 18U-09-0900-4 Fuel Injector Set is the ultimate premium upgrade for classic European platforms demanding upgraded fueling capabilities.
DeatschWerks Fuel Injectors Set - 650cc - Set of 4 - BMW E30 M3 ...
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DeatschWerks - Corporate Logo
T#:53891630
Part#: 18U-09-0650-4
Ships in 7 Business Days
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$ 359.00 USD
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Bring modern fuel injection precision to your iconic classic engine with the DeatschWerks 650cc fuel injector kit.

Oil Filter - 11421709514
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Mann - Corporate Logo
T#:53008792
Part#: 11421709514
Ships in 9 Business Days
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$ 12.99 USD
$ 12.99 USD
Your oil filter is your engine's primary defense against internal wear. By capturing metal shavings and debris, it prevents contaminants from grinding against sensitive moving parts and causing premature failure. Don't settle for inferior protection; these high-quality replacement filters ensure your oil remains clean and your engine stays "full of pep" for the long haul. Each filter includes the required sealing O-rings and washers to ensure a professional, leak-free service. For even better protection, pair this filter with a magnetic drain plug to trap metallic debris at the source. It’s a simple step that guarantees your engine remains fresh and properly lubricated between every service interval.
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Wire Pinning Kit - MLK 1.2 Female Jack
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Genuine BMW - Corporate Logo
T#:55281746
Part#: 125275WRKT
Ships in 8 Business Days
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$ 37.40 USD
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This Genuine BMW wiring repair kit is the ideal solution to refresh worn-out terminal connections in your Ultimate Driving Machine.
Morimoto Standalone Can-Bus Wiring Harness - H4 / 9003 - Priced Each ...
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Morimoto - Corporate Logo
T#:54388428
Part#: H240
Ships on Jul 24, 2026
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This product was last offered at the strikethrough price on
06-23-2026

$ 18.21 USD
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Sale - Save 17%
$ 21.99

This product was last offered at the strikethrough price on
06-23-2026

$ 18.21 USD
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ARP M3 M11-1.25 X 1.600 Rod Bolt Kit - E30 - S14
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ARP - Corporate Logo
T#:54139646
Part#: 301-6032
Ships on Jul 24, 2026
New Item
18% off MSRP $ 21.99

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

$ 17.99 USD
18% off MSRP
$ 21.99

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

$ 17.99 USD
the BMW S14 engine factory rod bolts are a notorious weak link when pushing past the original redline. Inertial forces at high RPM place immense tensile stress on the connecting rods, making heavy-duty hardware an absolute necessity.
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Engine Oil Drain Plug
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Elring - Corporate Logo
T#:54317188
Part#: 455.740
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$ 8.99 USD
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This engine oil drain plug is engineered to original specifications, delivering the perfect thread pitch and sealing performance.
ACL Race Series High Performance Connecting Rod Bearing Set - Oversiz...
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ACL - Corporate Logo
T#:48677225
Part#: 4B1568H-.25
Special Order: No Guaranteed ETA
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$ 118.99 USD
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Introducing the BMW S14B20, S14B23, and S14B25 Race Series High-Performance Con Rod Bearing Set by Automotive Components Limited. Elevate your BMW's performance with these precision-engineered con rod bearings, specifically designed for performance BMW engines.
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Ignition Coil
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Meyle - Corporate Logo
T#:55497467
Part#: 3141390000
Special Order: No Guaranteed ETA
New Item
$ 37.99 USD
$ 37.99 USD
This Meyle ignition coil is a factory-spec replacement designed to eliminate misfires and hesitation that plague aging ignition systems. Manufactured to strict tolerances, it delivers a reliable, high-voltage spark to ensure clean combustion under load.
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