ECS Heavy Duty Rear Headlight Leveling Sensor Rod (37146752797)
Over time, road grime, salt, and moisture take a toll on the factory rear leveling rod. The original equipment often corrodes, seizes, and eventually snaps—or worse, binds up and breaks your expensive headlight leveling sensor. With this issue in mind, ECS has engineered a heavy-duty, bulletproof solution designed to outlast the car it’s installed on.
Instead of brittle OE plastic that degrades and snaps over time, this rod is constructed from high-strength, flexible polyurethane. Paired with corrosion-resistant stainless steel ball studs, it guarantees smooth articulation and prevents the binding that destroys expensive sensors. Precision-manufactured for a perfect, bolt-on fit, this upgrade requires zero modifications to replace your fragile OEM unit.
This is a direct-fit replacement for Genuine BMW part number 37146752797, restoring proper suspension-to-sensor geometry so your headlights adjust perfectly to changing loads and road conditions.
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Product Details
Over time, road grime, salt, and moisture take a toll on the factory rear leveling rod. The original equipment often corrodes, seizes, and eventually snaps—or worse, binds up and breaks your expensive headlight leveling sensor. With this issue in mind, ECS has engineered a heavy-duty, bulletproof solution designed to outlast the car it’s installed on.
Instead of brittle OE plastic that degrades and snaps over time, this rod is constructed from high-strength, flexible polyurethane. Paired with corrosion-resistant stainless steel ball studs, it guarantees smooth articulation and prevents the binding that destroys expensive sensors. Precision-manufactured for a perfect, bolt-on fit, this upgrade requires zero modifications to replace your fragile OEM unit.
This is a direct-fit replacement for Genuine BMW part number 37146752797, restoring proper suspension-to-sensor geometry so your headlights adjust perfectly to changing loads and road conditions.
FEATURES
- Engineered from high-durometer polyurethane to provide exceptional strength and flexibility, eliminating the risk of snapping like the brittle plastic OE rods.
- Marine-grade stainless steel hardware ensures smooth, fluid articulation over the lifetime of the vehicle, preventing the binding that destroys costly leveling sensors.
- Designed to seamlessly replace BMW part number 37146752797 with a precise, bolt-on fit and zero modifications required.
Prop 65 Warning- 37146752797
- 37140141447
Kit Contents
| Qty | Description | T# | Part# | Lifetime |
|---|---|---|---|---|
| 1 | Polyurethane Bushing Lubricant | T#363115 | 9.11109~ECS | YES |
| 2 | SS M6 Nut | T#55353605 | 94150A345 | YES |
| 1 | Sensor Rod | T#55353603 | 042121LA01~A | YES |
| 1 | Ball Studs | T#55353604 | 042121LA02~B | YES |
Product Q&A
Lifetime Replacement
This Product Is Covered By Our Lifetime Replacement Program
Products protected by our Lifetime Replacement Program are covered for as long as you own the product, no need to worry about an expiration date. Purchase your products and enjoy some worry-free motoring, knowing we've got you covered.
If you have any questions, would like to learn more or are ready to place a replacement claim, click here!
Fits These Cars
| MAKE | MODEL | SUBMODEL | ENGINE | Special Fitment Notes |
|---|---|---|---|---|
| BMW | E39 | 525i | M54 2.5L | Use vehicle selector to confirm fitment |
| BMW | E39 | 528i | M52 2.8L | Use vehicle selector to confirm fitment |
| BMW | E39 | 530i | M54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E39 | 540i | M62 4.4L | Use vehicle selector to confirm fitment |
| BMW | E39 | M5 | S62 5.0L | Use vehicle selector to confirm fitment |
| BMW | E46 | 323Ci | M52 2.5L | Use vehicle selector to confirm fitment |
| BMW | E46 | 323i | M52 2.5L | Use vehicle selector to confirm fitment |
| BMW | E46 | 325Ci | M54 2.5L | Use vehicle selector to confirm fitment |
| BMW | E46 | 325i | M54 2.5L | Use vehicle selector to confirm fitment |
| BMW | E46 | 325i | M54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E46 | 325xi | M54 2.5L | Use vehicle selector to confirm fitment |
| BMW | E46 | 328Ci | M52 2.8L | Use vehicle selector to confirm fitment |
| BMW | E46 | 328i | M52 2.8L | Use vehicle selector to confirm fitment |
| BMW | E46 | 330Ci | M54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E46 | 330i | M54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E46 | 330xi | M54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E46 | M3 | S54 3.2L | Use vehicle selector to confirm fitment |
| BMW | E53 | X5 | M54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E53 | X5 | M62 4.4L | Use vehicle selector to confirm fitment |
| BMW | E53 | X5 | M62 4.6L | Use vehicle selector to confirm fitment |
| BMW | E53 | X5 | N62 4.4L | Use vehicle selector to confirm fitment |
| BMW | E53 | X5 | N62 4.8L | Use vehicle selector to confirm fitment |
| BMW | E60 | 525i | M54 2.5L | Use vehicle selector to confirm fitment |
| BMW | E60 | 525i | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E60 | 525xi | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E60 | 528i | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E60 | 528xi | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E60 | 530i | M54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E60 | 530i | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E60 | 530xi | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E60 | 535i | N54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E60 | 535i | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | E60 | 535xi | N54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E60 | 545i | N62 4.4L | Use vehicle selector to confirm fitment |
| BMW | E60 | 550i | N62 4.8L | Use vehicle selector to confirm fitment |
| BMW | E60 | M5 | S85 5.0L | Use vehicle selector to confirm fitment |
| BMW | E61 | 525i | M54 2.5L | Use vehicle selector to confirm fitment |
| BMW | E61 | 530xi | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E61 | 535xi | N54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E63 | 645Ci | N62 4.4L | Use vehicle selector to confirm fitment |
| BMW | E63 | 650i | N62 4.8L | Use vehicle selector to confirm fitment |
| BMW | E63 | M6 | S85 5.0L | Use vehicle selector to confirm fitment |
| BMW | E64 | 645Ci | N62 4.4L | Use vehicle selector to confirm fitment |
| BMW | E64 | 650i | N62 4.8L | Use vehicle selector to confirm fitment |
| BMW | E64 | M6 | S85 5.0L | Use vehicle selector to confirm fitment |
| BMW | E65 | 745i | N62 4.4L | Use vehicle selector to confirm fitment |
| BMW | E65 | 750i | N62 4.8L | Use vehicle selector to confirm fitment |
| BMW | E65 | 760i | N73 6.0L | Use vehicle selector to confirm fitment |
| BMW | E65 | 760Li | N73 6.0L | Use vehicle selector to confirm fitment |
| BMW | E65 | B7 Alpina | N62 4.4L | Use vehicle selector to confirm fitment |
| BMW | E66 | 745Li | N62 4.4L | Use vehicle selector to confirm fitment |
| BMW | E66 | 750Li | N62 4.8L | Use vehicle selector to confirm fitment |
| BMW | E66 | 760Li | N73 6.0L | Use vehicle selector to confirm fitment |
| BMW | E70 | X5 | M57 3.0L | Use vehicle selector to confirm fitment |
| BMW | E70 | X5 | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E70 | X5 | N62 4.8L | Use vehicle selector to confirm fitment |
| BMW | E70 | X5 M | S63 4.4L | Use vehicle selector to confirm fitment |
| BMW | E70 | X5 xDrive35d | M57 3.0L | Use vehicle selector to confirm fitment |
| BMW | E70 | X5 xDrive35i | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | E70 | X5 xDrive50i | N63 4.4L | Use vehicle selector to confirm fitment |
| BMW | E71 | X6 ActiveHybrid | N63 4.4L | Use vehicle selector to confirm fitment |
| BMW | E71 | X6 M | S63 4.4L | Use vehicle selector to confirm fitment |
| BMW | E71 | X6 xDrive35i | N54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E71 | X6 xDrive35i | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | E71 | X6 xDrive50i | N63 4.4L | Use vehicle selector to confirm fitment |
| BMW | E82 | 1 M Coupe | N54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E82 | 128i | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E82 | 135i | N54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E82 | 135i | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | E83 | X3 | M54 2.5L | Use vehicle selector to confirm fitment |
| BMW | E83 | X3 | M54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E83 | X3 | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E84 | X1 sDrive28i | N20 2.0L | Use vehicle selector to confirm fitment |
| BMW | E84 | X1 xDrive28i | N20 2.0L | Use vehicle selector to confirm fitment |
| BMW | E84 | X1 xDrive35i | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | E88 | 128i | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E88 | 135i | N54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E88 | 135i | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | E90 | 325i | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E90 | 325xi | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E90 | 328i | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E90 | 328xi | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E90 | 330i | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E90 | 330xi | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E90 | 335d | M57 3.0L | Use vehicle selector to confirm fitment |
| BMW | E90 | 335i | N54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E90 | 335i | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | E90 | 335xi | N54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E90 | 335xi | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | E90 | M3 | S65 4.0L | Use vehicle selector to confirm fitment |
| BMW | E91 | 325i | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E91 | 325xi | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E91 | 328i | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E91 | 328xi | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E92 | 328i | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E92 | 328xi | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E92 | 335i | N54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E92 | 335i | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | E92 | 335is | N54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E92 | 335xi | N54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E92 | 335xi | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | E92 | M3 | S65 4.0L | Use vehicle selector to confirm fitment |
| BMW | E93 | 328i | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | E93 | 335i | N54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E93 | 335i | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | E93 | 335is | N54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E93 | M3 | S65 4.0L | Use vehicle selector to confirm fitment |
| BMW | F01 | 740i | N54 3.0L | Use vehicle selector to confirm fitment |
| BMW | F01 | 750i | N63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F01 | 750i xDrive | N63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F01 | Alpina B7 | N63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F01 | Alpina B7 xDrive | N63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F02 | 740Ld xDrive | N57 3.0L | Use vehicle selector to confirm fitment |
| BMW | F02 | 740Li | N54 3.0L | Use vehicle selector to confirm fitment |
| BMW | F02 | 740Li xDrive | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | F02 | 750Li | N63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F02 | 750Li xDrive | N63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F02 | 760Li | N74 6.0L | Use vehicle selector to confirm fitment |
| BMW | F02 | ActiveHybrid 7 | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | F07 | 535i | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | F07 | 535i xDrive | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | F07 | 550i | N63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F07 | 550i xDrive | N63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F10 | 528i | N20 2.0L | Use vehicle selector to confirm fitment |
| BMW | F10 | 528i | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | F10 | 528i xDrive | N20 2.0L | Use vehicle selector to confirm fitment |
| BMW | F10 | 535d | N57 3.0L | Use vehicle selector to confirm fitment |
| BMW | F10 | 535d xDrive | N57 3.0L | Use vehicle selector to confirm fitment |
| BMW | F10 | 535i | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | F10 | 535i xDrive | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | F10 | 550i | N63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F10 | 550i xDrive | N63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F10 | ActiveHybrid 5 | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | F10 | M5 | S63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F12 | 640i | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | F12 | 640i xDrive | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | F12 | 650i | N63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F12 | 650iX | N63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F12 | M6 | S63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F13 | 640i | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | F13 | 640i xDrive | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | F13 | 650i | N63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F13 | 650iX | N63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F13 | M6 | S63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F15 | X5 sDrive35i | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | F15 | X5 xDrive35d | N57 3.0L | Use vehicle selector to confirm fitment |
| BMW | F15 | X5 xDrive35i | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | F15 | X5 xDrive40e | N20 2.0L | Use vehicle selector to confirm fitment |
| BMW | F15 | X5 xDrive50i | N63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F16 | X6 sDrive35i | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | F16 | X6 xDrive35i | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | F16 | X6 xDrive50i | N63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F80 | M3 | S55 3.0L | Use vehicle selector to confirm fitment |
| BMW | F82 | M4 | S55 3.0L | Use vehicle selector to confirm fitment |
| BMW | F83 | M4 | S55 3.0L | Use vehicle selector to confirm fitment |
| BMW | F85 | X5 M | S63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F86 | X6 M | S63 4.4L | Use vehicle selector to confirm fitment |
| BMW | F87 | M2 | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | F87 | M2 Competition | S55 3.0L | Use vehicle selector to confirm fitment |
| BMW | Z4 | 2.5i | M54 2.5L | Use vehicle selector to confirm fitment |
| BMW | Z4 | 3.0i | M54 3.0L | Use vehicle selector to confirm fitment |
| BMW | Z4 | 3.0i | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | Z4 | 3.0Si | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | Z4 | M Coupe | S54 3.2L | Use vehicle selector to confirm fitment |
| BMW | Z4 | M Roadster | S54 3.2L | Use vehicle selector to confirm fitment |
| BMW | Z4 | sDrive28i | N20 2.0L | Use vehicle selector to confirm fitment |
| BMW | Z4 | sDrive30i | N52 3.0L | Use vehicle selector to confirm fitment |
| BMW | Z4 | sDrive35i | N54 3.0L | Use vehicle selector to confirm fitment |
| BMW | Z4 | sDrive35is | N54 3.0L | Use vehicle selector to confirm fitment |
| MINI | All | All | L4 1.6L W10B16A | Use vehicle selector to confirm fitment |
| MINI | All | S | L4 1.6L W11B16A | Use vehicle selector to confirm fitment |
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ECS Heavy Duty Rear Headlight Leveling Sensor Rod (37146752797)