HomeEngine > Gaskets and Sealing SystemsApex ATC9100 Engine Crankshaft Seal Kit - Front
Part #: ATC9100

Apex ATC9100 Engine Crankshaft Seal Kit - Front

Front
⚙️ 29 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$19.05Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: BMW, 323i, 323is, 325i, 325is, 328i, 328is, 525i, 525iT, 528i, M3, and Z3
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Engine Crankshaft Seal Kit for BMW Models

The Apex ATC9100 Engine Crankshaft Seal Kit is designed to provide a precise seal for your BMW engine, helping to maintain optimal performance and prevent oil leaks. Compatible with a range of BMW models, this kit ensures a proper fit and reliable operation.

  • Compatible with BMW 323i, 323is, 325i, 325is, 328i, 328is, 525i, 525iT, 528i, M3, and Z3 models
  • Engine crankshaft seal kit designed to maintain engine integrity
  • Durable materials engineered for long-lasting sealing performance
  • Part number ATC9100 for easy identification and replacement

Detailed Description of the Apex ATC9100 Seal Kit

The Apex ATC9100 Engine Crankshaft Seal Kit is engineered specifically for BMW engines, providing a reliable seal around the crankshaft to prevent oil leaks and contamination. This kit is essential for maintaining engine efficiency and protecting internal components from damage caused by oil loss or dirt ingress. Designed to meet OEM specifications, the ATC9100 ensures compatibility with various BMW models including the 3 Series (323i, 323is, 325i, 325is, 328i, 328is), 5 Series (525i, 525iT, 528i), M3, and Z3.

Common Applications and Issues Addressed

  • Prevents oil leaks from the crankshaft area
  • Reduces risk of engine contamination and wear
  • Helps maintain proper engine oil pressure
  • Addresses crankshaft seal failure symptoms such as oil spots under the vehicle
  • Supports engine longevity by maintaining a secure seal

Installation Notes and Tips

When installing the Apex ATC9100 Engine Crankshaft Seal Kit, ensure the crankshaft surface is clean and free of debris. Proper alignment during installation is critical to avoid premature seal wear. It is recommended to inspect the crankshaft and surrounding components for damage before fitting the new seal. Use appropriate tools to avoid damaging the seal during installation.

Quality Assurance and Warranty Information

Apex manufactures the ATC9100 Engine Crankshaft Seal Kit to meet industry standards for durability and performance. While specific warranty details are not provided, Apex products typically undergo quality control processes to ensure reliability. For best results, use this kit as a direct replacement part for compatible BMW models.

This part fits 29 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1998BMW323i2.5LL6Front
1998BMW323is2.5LL6Front
1998BMW328i2.8LL6Front
1998BMW328is2.8LL6Front
1998BMW528i2.8LL6Front
1998BMWM33.2LL6Front
1998BMWZ32.8LL6Front
1997BMW328i2.8LL6Front
1997BMW328is2.8LL6Front
1997BMW528i2.8LL6Front
1997BMWM33.2LL6Front
1997BMWZ32.8LL6Front
1996BMW328i2.8LL6Front
1996BMW328is2.8LL6Front
1996BMWM33.2LL6Front
1995BMW325i2.5LL6Front
1995BMW325is2.5LL6Front
1995BMW525i2.5LL6Front
1994BMW325i2.5LL6Front
1994BMW325is2.5LL6Front
1994BMW525i2.5LL6Front
1993BMW325i2.5LL6Front
1993BMW325is2.5LL6Front
1993BMW525i2.5LL6Front
1993BMW525iT2.5LL6Front
1992BMW325i2.5LL6Front
1992BMW325is2.5LL6Front
1992BMW525i2.5LL6Front
1991BMW525i2.5LL6Front

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.