Expansion Tank Cap

Prevent pressure loss and overheating with a new expansion tank cap
Mfg Part #
17117639022
ECS Part #
ES#4304653
Brand
Bavarian Autosport
7.64
$8.99 (Sale - Save 15%)
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Product Details

The coolant expansion tank cap keeps the 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.

Dress up your underhood and make everything functional with a new cap

This Part Fits the Following Vehicles

Make Model Submodel Engine
BMW E30 318i M10 1.8L
BMW E30 318i M42 1.8L
BMW E30 318is M42 1.8L
BMW E31 840Ci M60 4.0L
BMW E31 840Ci M62 4.4L
BMW E31 850Ci M70 5.0L
BMW E31 850Ci M73 5.4L
BMW E31 850CSi S70 5.6L
BMW E32 730i M60 3.0L
BMW E32 735i M30 3.4L
BMW E32 735iL M30 3.4L
BMW E32 740i M60 4.0L
BMW E32 740iL M60 4.0L
BMW E32 750i M70 5.0L
BMW E32 750iL M70 5.0L
BMW E34 525i M20 2.5L
BMW E34 525i M50 2.5L
BMW E34 530i M60 3.0L
BMW E34 535i M30 3.4L
BMW E34 540i M60 4.0L
BMW E34 M5 S38 3.5L
BMW E36 318i M42 1.8L
BMW E36 318i M44 1.9L
BMW E36 318ic M42 1.8L
BMW E36 318ic M44 1.9L
BMW E36 318is M42 1.8L
BMW E36 318is M44 1.9L
BMW E36 318ti M42 1.8L
BMW E36 318ti M44 1.9L
BMW E36 320i M50 2.0L
BMW E36 323i M52 2.5L
BMW E36 323ic M52 2.5L
BMW E36 323is M52 2.5L
BMW E36 325i M50 2.5L
BMW E36 325ic M50 2.5L
BMW E36 325is M50 2.5L
BMW E36 328i M52 2.8L
BMW E36 328ic M52 2.8L
BMW E36 328is M52 2.8L
BMW E36 M3 S50 3.0L
BMW E36 M3 S52 3.2L
BMW E38 740i M60 4.0L
BMW E38 740i M62 4.4L
BMW E38 740iL M60 4.0L
BMW E38 740iL M62 4.4L
BMW E38 750i M73 5.4L
BMW E38 750iL M73 5.4L
BMW E39 525i M54 2.5L
BMW E39 528i M52 2.8L
BMW E39 530i M54 3.0L
BMW E39 540i M62 4.4L
BMW E39 M5 S62 5.0L
BMW E46 323Ci M52 2.5L
BMW E46 323i M52 2.5L
BMW E46 325Ci M54 2.5L
BMW E46 325i M54 2.5L
BMW E46 325xi M54 2.5L
BMW E46 328Ci M52 2.8L
BMW E46 328i M52 2.8L
BMW E46 330Ci M54 3.0L
BMW E46 330i M54 3.0L
BMW E46 330xi M54 3.0L
BMW E46 M3 S54 3.2L
BMW E52 Z8 S62 5.0L
BMW E52 Z8 Alpina M62 4.8L
BMW E53 X5 M54 3.0L
BMW E53 X5 M62 4.4L
BMW E53 X5 M62 4.6L
BMW E53 X5 N62 4.4L
BMW E53 X5 N62 4.8L
BMW E53 X5 All
BMW E65 745i N62 4.4L
BMW E65 750i N62 4.8L
BMW E65 760i N73 6.0L
BMW E65 760Li N73 6.0L
BMW E65 B7 Alpina N62 4.4L
BMW E66 745Li N62 4.4L
BMW E66 750Li N62 4.8L
BMW E66 760Li N73 6.0L
BMW E83 X3 M54 2.5L
BMW E83 X3 M54 3.0L
BMW E83 X3 N52 3.0L
BMW Z3 1.9 M44 1.9L
BMW Z3 2.3 M52 2.5L
BMW Z3 2.5 M52 2.5L
BMW Z3 2.5i M54 2.5L
BMW Z3 2.8 M52 2.8L
BMW Z3 3.0i M54 3.0L
BMW Z3 M Coupe S52 3.2L
BMW Z3 M Coupe S54 3.2L
BMW Z3 M Roadster S52 3.2L
BMW Z3 M Roadster S54 3.2L
BMW Z4 2.5i M54 2.5L
BMW Z4 3.0i M54 3.0L
BMW Z4 3.0i N52 3.0L
BMW Z4 3.0Si N52 3.0L
BMW Z4 M Roadster S54 3.2L
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.

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