BMW Cooling System O-Ring Kit E46 M3 S54 3.2 Radiator Coolant Hose Sensor Set

Description: If ordering from outside of North America, please include a note with your vehicle's VIN # or production date, model number, & engine type. If you don't see your model listed in this listing or our other listings; please contact us, and we'll assemble a kit for your needs. These o-rings seal the BMW press & clip hose connections: Excellent quality & made in the USA. This kit also includes the thermostat o-ring (BMW Part # 11531318402) as well as 2 of each of the following o-rings: BMW Part # 11537830709 & 11537830712. Anyone trying to sell you VITON (FKM) o-rings for glycol based systems such as conventional cooling and hydraulic systems lacks an understanding of elastomeric properties. With trial and testing on vehicles we ourselves service, our kits optimize performance, quality, and value through the use of multiple compounds (NBR, HNBR, EPDM). All the green o-rings in our kits are peroxide cured EPDM, which we use in the most vulnerable locations for its excellent high temperature performance (150C/300F) and chemical resistance to glycol based coolants. We have transitioned all of our kits to more of these EPDM o-rings for the most vulnerable and highly stressed connections. Also included is a packet of water based lube, which can be used on all coolant connections. FYI: VITON/FKM compounds are not ideal for sealing glycol based fluids found in cooling and brake systems. Only EPDM compounds are used to seal caliper pistons and flexible brake lines subject to high hydraulic pressures. When encountering o-rings of identical size, green ones may be used only for coolant connections. Do not use petroleum based lubricants on any coolant connections! Engine oil cooler o-ring kits for the e46 M3 are available by clicking this link: Oil Cooler O-Ring Kit If you are uncertain about which kit you need, please send us the last 7 digits of your VIN to verify compatibility. *Standard shipping is USPS 1st Class Package, 2-5 days in most cases. If you need your item sooner choose expedited shipping, USPS Priority Mail 2-3 days or USPS Priority Express 1-2 days guaranteed (with exceptions). We carry a large inventory. For orders of more than 10 kits, please contact us! For other complete vehicle kits, please click on the proceeding links: 1 Series e81 e82 e86 e87 3 Series e46 3 Series e90, e91, e92, e93 5 Series e39, e60 X3 X5 e83, e53, e70 Z4 e85 e86 If you require coverage for a different model, please contact us and we'll assemble a kit that will cover your needs. These are metric o-rings and are of the same dimensions as the ones that came on your car. The cooling system on the 3 series (and all other BMWs) requires a good deal of maintenance, especially the expansion tank (ET) and thermostat. In most cases, the o-rings at press & clip hosing ends will leak after they've been disconnected due to compression set. During winter, leaks tend to develop during the cool down cycle as the already compressed rubber o-rings contract with lower ambient temperatures. BMW does not offer o-rings for their press & clip hose connections and most dealerships do not stock the o-ring for the coolant temperature sensor in the lower radiator hose separately. But don't waste money buying a new sensor or unnecessarily replacing hose assemblies, all of which can last well beyond 10 years/150,000 miles. We've assembled this kit for working on customers' vehicles after growing tired of throwing away countless serviceable parts when all that was needed were some fresh o-rings. The photo in this listing is generic. Our kits contain between 17 and 34 o-rings.

Price: 23.99 USD

Location: Philadelphia, Pennsylvania

End Time: 2024-08-09T03:44:04.000Z

Shipping Cost: 0 USD