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Cometic C4678 Rear Main Crankshaft Seal for Honda B-Series and D-Series Engines

(1988-1991 Honda Civic; 1988-1991 Honda CRX)

Part of: Cometic Rear Main Seal for Chevrolet Small Block

Other options in this family: Cometic C5681 Cometic C5683 Cometic C5682 Cometic C5689 Cometic C5385

Manufacturer

Picture for manufacturer Cometic

Part Number

C4678
8 reviews
Sale Price

$14.27

Estimated ship date Sunday, November 22

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Fitment guaranteed

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Product Details

The Cometic C4678 is a precision-engineered rear main crankshaft seal designed for a wide range of Honda engines. This critical engine seal prevents oil leakage between the crankshaft and engine block, ensuring proper lubrication and preventing contamination.

Key Features:

  • High-quality construction using premium sealing materials resistant to heat and oil degradation
  • Precision-molded design ensures proper fitment and reliable sealing performance
  • Direct replacement for OEM rear main seal applications
  • Essential component for engine rebuilds, rear main seal leaks, or transmission removal jobs

Compatible Honda Engine Families:

  • B-Series: B16A2, B16A3, B17A1, B18A1, B18C1, B18C5, B20A3, B20A5, B20B4, B20Z2, B21A1
  • D-Series: D15A1, D15A2, D15A3, D15A4, D15B1, D15B2, D15B6, D15B7, D15B8, D15Z1, D16A1, D16A6, D16B5, D16Y5, D16Y7, D16Y8, D16Z6
  • F-Series: F22A1, F22A4, F22B1, F22B2, F22B6, F23A1, F23A4, F23A5, F23A7
  • H-Series: H22A1, H22A4, H23A1
  • Other: A20A1, A20A3, ES1, ET, EV1, EW1, EW2, EW3, EW4, G25A1, G25A4

Cometic Gasket is known throughout the automotive performance industry for manufacturing high-quality sealing solutions. This rear main seal meets or exceeds OEM specifications and is suitable for both stock and performance applications.

Products specifications

Fits

1988-1991 Honda Civic; 1988-1991 Honda CRX

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

Great experience!

Fast and easy

Quick to respond.

It was great. It was quick and easy. Loved it

First time shopper. Good so far

Quick and easy

E

Would use again. Pictures and description of product were good.

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