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BMW Cooling System Parts & Accessories for BMW E12 530i M30 3.0L

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The cooling system is arguably the weakest point in numerous BMWs. If you drive an aging BMW or plan on taking your car to the track like we do, we recommend beefing up your cooling system before going to the track. Generally, the main components in your cooling system that are prone to failure include the following: expansion tank, factory hoses, water pump, thermostat, fan (especially if your vehicle comes factory with a clutch fan), and radiator. Factory BMW expansion tanks are plastic and prone to either breaking off at connection points or combusting. As factory rubber hoses age they either crack or break over time - we offer silicone cooling hose upgrades for most applications to avoid future failures. If you have an older vehicle, your water pump likely comes from the factory with a plastic impeller - we offer upgraded water pumps with metal impellers that are far more reliable. Newer model BMWs utilize electric water pumps - BMW spent millions of dollars engineering these water pumps, but they fail so often that we recommend replacing at 60,000 mile service intervals to avoid being stranded on the side of the road. In terms of thermostats, we offer various upgraded thermostats for racing applications. If your BMW utilizes a clutch fan from the factory, we have several options available in terms of universal electric fans - we recommend replacing these to avoid sending brittle plastic fan blades through your hood. For radiators, we recommend swapping out your radiator for one that does not use plastic connection points like your factory radiator.

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Coolant Hose

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T#:373138

Part#: 11531266459

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$ 3.99 USD

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$ 3.99 USD

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Water pump to thermostat housing

Fan mounting pin - priced each

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T#:598910

Part#: 30130013

In Stock at Vendor

$ 6.99 USD

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$ 6.99 USD

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Wire pin used to mount electric fan directly to radiator.

OEM Rein Radiator Cap - E21 E24 E10 E12 E23 E28

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T#:7395

Part#: 17111100848

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$ 11.99 USD

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$ 11.99 USD

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The radiator tank cap keeps necessary pressure on your coolant to increase efficiency. If you have an overheating issue in your vehicle, a simple, quick, and inexpensive part to replace is this cap. Often times, the coolant is not kept under enough pressure to keep it from boiling or expanding too much. This cap keeps all the heat and liquid inside the coolant system for maximum efficiency. Should be replaced each time major coolant system service is performed.

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Lower Radiator Hose

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T#:373010

Part#: 11531266462

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$ 10.99 USD

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Hose from radiator to water pump

Febi Freeze Plug - 11111714712

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T#:6570

Part#: 11111714712

In Stock at Vendor

$ 3.99

This product was last offered at the strikethrough price on
05-07-2026

$ 1.81 USD

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$ 1.81 USD

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ENGINE COVER LID 11111714712

FAE Coolant Temperature Sensor

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T#:10784

Part#: 62110788115

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$ 13.99 USD

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INSTRUMENTS ENGINE COOLANT TEMP SENSOR 62110788115

Genuine BMW Water Pump - 633CSi

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T#:214384

Part#: 11519070756

Ships in 4 Business Days

6% off MSRP $ 279.99

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

$ 263.99 USD

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6% off MSRP

$ 279.99

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

$ 263.99 USD

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Genuine BMW Rmfd Water Pump - 11519070756

This item fits the following BMW ENGINES:
M30

Febi Bypass Hose - E12, E23, E24, E28, E3, E32, E34, E9

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T#:382396

Part#: 11531266459

Ships in 1-2 days

$ 9.99

This product was last offered at the strikethrough price on
02-24-2026

$ 9.17 USD

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$ 9.17 USD

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Water pump to thermostat housing

Hose Clamp 2 5/16" - 3 1/4" - priced each

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T#:376806

Part#: 54155K23

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$ 4.99 USD

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$ 4.99 USD

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Hose Clamp 2 5/16" - 3 1/4"

Ensure secure hose connections with the Hose Clamp 2 5/16" - 3 1/4", a versatile and reliable solution for various applications. Crafted from durable materials, this clamp offers superior strength and corrosion resistance. Its adjustable design allows for a snug fit, reducing the risk of leaks and ensuring optimal performance. Upgrade your hose connections with the precision and reliability of the Hose Clamp 2 5/16" - 3 1/4".

Versatile and reliable solution for various applications
Superior strength and corrosion resistance
Adjustable design for a snug fit
Reduces risk of leaks for optimal performance

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FAE Temperature Sending Unit - Temperature Gauge (One Prong Spade Typ...

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T#:596552

Part#: 62111268355

Ships in 3 Business Days

$ 13.99 USD

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O-RING

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T#:580584

Part#: C32348

In Stock

$ 3.99

This product was last offered at the strikethrough price on
05-07-2026

$ 2.99 USD

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$ 2.99 USD

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Genuine BMW Radiator Fan Clutch - E12 528i, E24 633CSi, E23 733i, E12...

Fits from 09/79 production date

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T#:22303

Part#: 11521260459

Ships in 8 Business Days

3% off MSRP $ 401.99

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

$ 388.99 USD

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3% off MSRP

$ 401.99

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

$ 388.99 USD

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Genuine BMW FAN COUPLING
Fits BMW Engines including:
M30

Hose - E12, E23, E24, E3

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T#:22310

Part#: 11531266476

Ships in 9 Business Days

$ 11.99 USD

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$ 11.99 USD

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Genuine BMW HOSE.--

This item fits the following BMWs:
BMW 5 Series - 530i

--. Fits BMW Engines including:
M30

Anti-Freeze Tester

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T#:641679

Part#: CTAA195

Ships on Jul 28, 2026

$ 9.98 USD

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$ 9.98 USD

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Tests all ethylene glycol solutions with radiator hot or cold

Hose - E12, E23, E24, E3

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T#:22345

Part#: 11611261204

Special Order: No Guaranteed ETA

$ 11.99 USD

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$ 11.99 USD

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Genuine BMW HOSE.--

This item fits the following BMWs:
BMW 3 Series - 3.0si
BMW 5 Series - 530i
BMW 6 Series - 633csi

--. Fits BMW Engines including:
M30

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Hose - E12, E23, E24, E3

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T#:22309

Part#: 11531266475

Special Order: No Guaranteed ETA

$ 21.99 USD

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$ 21.99 USD

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Genuine BMW HOSE.--

This item fits the following BMWs:
BMW 5 Series - 530i

--. Fits BMW Engines including:
M30

2 Pin Connector

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T#:33412932

Part#: 61132359999

Ships on Jul 28, 2026

Sale - Save 25% $ 10.99

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

$ 8.24 USD

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Qty

Sale - Save 25%

$ 10.99

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

$ 8.24 USD

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Includes connector housing with terminals and seals. Commonly used for the coolant level sensor.

ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need.

Each connector includes an additional terminal in case one becomes lost or damaged during installation.

*OEM cross reference PN# 61132359999 - Commonly used for the coolant level sensor.

Please reference the original part number from the existing connector to confirm fitment, before ordering.

Suggested tools:

Suggested crimping pliers: T#387193
Wire De-pin tools:
12pc De-Pin Tool Set - T#386379
23pc De-Pin Tool Set - T#641943

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Mahle Thermostat - 80ï¿½C - E12, E23, E24, E28

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T#:591826

Part#: 11539055588

Back Ordered

$ 22.99

This product was last offered at the strikethrough price on
05-07-2026

$ 21.99 USD

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$ 21.99 USD

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Stop your overheating problem.

BMW Thermostat Gasket

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T#:15048409

Part#: 11531250357

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$ 4.99

This product was last offered at the strikethrough price on
05-08-2026

$ 3.99 USD

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Whether you are just doing general maintenance or noticing some symptoms of a failing gasket, it's always a good idea to replace your gaskets anytime your engine components are removed. Get your replacement gasket here today!

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