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BMW Coolant & Radiator Hoses for BMW E46 M3 S54 (1999-2005)

We offer replacement hoses from several OE brands that we trust, along with performance silicone upgrades for those who want increased wear resistance compared to factory rubber.

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3/8"/9mm Band Hose Clamp - 50-70mm

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T#:341684

Part#: 003402ECS06A-12

In Stock

Sale - Save 25% $ 6.99

This product was last offered at the strikethrough price on
06-13-2026

$ 5.24 USD

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Sale - Save 25%

$ 6.99

This product was last offered at the strikethrough price on
06-13-2026

$ 5.24 USD

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Elevate your BMW maintenance with ECS Tuning's 304 stainless steel hose clamps, offering convenience and top-quality performance at an affordable price. Designed with various band widths and German-style T-bolts for adjustable sizing, these hose clamps ensure a secure fit for your specific diameter needs. Skip the dealership wait and excessive pricing; ECS Tuning provides reliable, dealership-quality hose clamps without the premium cost, ensuring your car receives the care it deserves.

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77-85mm - 3/4" Band Hose Clamp

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T#:377877

Part#: 003402ECS07A-05

In Stock

Sale - Save 25% $ 25.99

This product was last offered at the strikethrough price on
06-13-2026

$ 19.49 USD

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Sale - Save 25%

$ 25.99

This product was last offered at the strikethrough price on
06-13-2026

$ 19.49 USD

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Upgrade your BMW's hose clamps with the 77-85mm - 3/4" Band Hose Clamp from Turner Motorsport. These full 304 stainless steel clamps offer convenience and quality without the dealership price tag. German-style T-bolts allow for easy adjustment to your required diameter, ensuring a secure fit every time.

Made of durable 304 stainless steel for long-lasting performance
German-style T-bolt design for easy size adjustment
Convenient band widths for versatile applications
Quality alternative to dealership pricing

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Rein Coolant Bleeder Screw CHW1575 - Priced Each

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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:591955

Part#: 17111712788

In Stock

$ 4.99 USD

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$ 4.99 USD

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Coolant Bleeder Screw is a critical component for maintaining your BMW’s cooling system. Designed to release trapped air from the coolant lines, this screw ensures efficient coolant flow and prevents overheating. Specifically engineered for BMW models, it enhances the overall performance and longevity of your engine by maintaining proper temperature regulation. Comes with O-Ring.

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

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T#:376806

Part#: 54155K23

Ships in 1 day

$ 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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Oil Cooler Line O-Ring & Screw Kit

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T#:55281750

Part#: 1722OCLKT

Ships in 3 Business Days

$ 20.60 USD

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$ 20.60 USD

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This Genuine BMW Oil Cooler Line O-Ring & Screw Kit includes the exact factory components required to safely service your oil cooler hard lines.

Coolant Flange - Rear/Engine Block

Fits European models only

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T#:55533481

Part#: 11531708808

Special Order: No Guaranteed ETA

$ 9.99 USD

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$ 9.99 USD

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This Meyle Original-grade replacement coolant flange is the perfect solution for refreshing your BMW’s cooling plumbing back to factory-fresh operation.

DO88 Coolant Hoses - Blue - E46 M3

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T#:13924830

Part#: DO88KIT70B

Back Ordered

$ 256.99 USD

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$ 256.99 USD

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Made out of high-quality silicone, these hoses display the highest levels of durability and quality. With three to five layers of armory the hoses are designed to withstand high pressure and heat for an extended period of time. The OE hoses are known to crack and leak but this hose kit eliminates any chance of that.

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BMW Radiator Hose Kit - 11537830715

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T#:46719180

Part#: CHK0376R

Back Ordered

$ 43.99 USD

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$ 43.99 USD

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Keep your cooling system sealed, strong, and ready for anything with this Rein radiator hose kit—your all-in-one fix for cracked, leaking, or worn factory hoses. Years of heat, pressure, and age can cause rubber to weaken, split, or swell, setting the stage for coolant leaks and potential overheating. Rein hoses are engineered to meet or exceed OEM standards, built from premium, heat-resistant materials that can take on extreme temperatures and system pressures without faltering. Each hose features factory-correct bends, fittings, and diameters for an exact, hassle-free installation—no cutting or forcing required. Whether you’re tackling a full cooling system refresh or chasing down a small coolant leak, this Rein kit provides everything needed to restore confidence and performance under the hood. Why choose this Rein radiator hose kit: Factory-level precision – Direct-fit replacements that deliver OEM-quality reliability. Built to last – Resists cracking, swelling, and chemical damage from daily heat cycling. Confidence restored – Prevents coolant loss, overheating, and on-road breakdowns. All-in-one upgrade – Includes upper and lower hoses for a complete system refresh. If keeping your BMW’s cooling system running tight and trouble-free is the goal, Rein brings the dependable quality and fitment you can count on—engineered to perform just like factory, mile after mile.

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BMW Coolant & Radiator Hoses for BMW E46 M3 S54 (1999-2005)

3/8"/9mm Band Hose Clamp - 50-70mm

77-85mm - 3/4" Band Hose Clamp

Rein Coolant Bleeder Screw CHW1575 - Priced Each

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

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

Oil Cooler Line O-Ring & Screw Kit

Coolant Flange - Rear/Engine Block

DO88 Coolant Hoses - Blue - E46 M3

BMW Radiator Hose Kit - 11537830715

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